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        25 Temporary API jobs in Welwyn Garden City + 20 miles

        Backend Software Engineer Golang Kafka - Start-up

        Client Server
        EC2A, City of London, EC2A 4EB
        £90000 - £110000 per annum + benefits
        Backend Software Engineer / Developer (Golang Kafka API) London / WFH to £110k Do you have a deep knowledge of Go / Golang combined with software architecture and design skills? You could be progressing your career as a Backend Software Engineer at a start-up payments technology company that is revolutionising the payments industry to Africa, improving speed, cost and reliability. As a Backend Software Engineer you'll focus on backend system design, event driven architecture and APIs with a focus on scalability and reliability. You'll join a small, collaborative, Agile team working on 2 week sprints, you'll be a key part of tech discussions and decision making. You'll join colleagues in the London, Canary Wharf offices three days a week (also the possibility to be remote in the UK).
        Backend Software Engineer / Developer (Golang Kafka API) London / WFH to £110k Do you have a deep knowledge of Go / Golang combined with software architecture and design skills? You could be progressing your career as a Backend Software Engineer at a start-up payments technology company that is revolutionising the payments industry to Africa, improving speed, cost and reliability. As a Backend Software Engineer you'll focus on backend system design, event driven architecture and APIs with a focus on scalability and reliability. You'll join a small, collaborative, Agile team working on 2 week sprints, you'll be a key part of tech discussions and decision making. You'll join colleagues in the London, Canary Wharf offices three days a week (also the possibility to be remote in the UK).
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        NEWPREMIUM
        Backend Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care for all by using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care. As a Backend Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end.
        Backend Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care for all by using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care. As a Backend Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end.
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        NEWPREMIUM
        Full Stack Developer - React / Python London | Hybrid (2 days office and 3 days from home) £60K-£70K + Equity | Full-Time | Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React on the front end, Python on the back end. * Build responsive UIs in React * Develop APIs & services in Python (either Django/Flask/FastAPI) * Own features end-to-end * Help shape our tech stack * Strong React & Python skills * API & database experience * A proactive, problem-solving mindset * Ideally start-up or scale-up experience Why us? * Big impact from day one * Technical ownership & flexibility * Career growth + equity options Apply with your CV + GitHub Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions.
        Full Stack Developer - React / Python London | Hybrid (2 days office and 3 days from home) £60K-£70K + Equity | Full-Time | Start-up We're a high-growth start-up building a leading healthcare! Looking for a Full Stack developer who loves working across the stack - React on the front end, Python on the back end. * Build responsive UIs in React * Develop APIs & services in Python (either Django/Flask/FastAPI) * Own features end-to-end * Help shape our tech stack * Strong React & Python skills * API & database experience * A proactive, problem-solving mindset * Ideally start-up or scale-up experience Why us? * Big impact from day one * Technical ownership & flexibility * Career growth + equity options Apply with your CV + GitHub Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions.
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        Backend Engineer

        Plexus Resource Solutions Ltd
        EC1, City of London
        From £100,000 to £130,000 per annum
        Remote £100k - £130k Plexus has another great opportunity with one of our long-term clients. They believe that using crypto can enable a more equitable system for creators, fundamentally rediscovering the power of the internet. They are looking for a Backend Engineer to join one of their core product engineering teams with the ability to directly impact millions of user experiences in how they interactive with our products. * Work with team to build out new features in the product. * Build and maintain an API used by the product as well as external partners. * Communicate status, updates, blockers, etc., to cross functional stakeholders. * Participate in RFC and code review. * 3+ years of experience as an engineer. * Technical background in Python, GraphQL, and MongoDB. * Comfortable in moving across the stack when needed (Typescript/React/Next/Solidity)
        Remote £100k - £130k Plexus has another great opportunity with one of our long-term clients. They believe that using crypto can enable a more equitable system for creators, fundamentally rediscovering the power of the internet. They are looking for a Backend Engineer to join one of their core product engineering teams with the ability to directly impact millions of user experiences in how they interactive with our products. * Work with team to build out new features in the product. * Build and maintain an API used by the product as well as external partners. * Communicate status, updates, blockers, etc., to cross functional stakeholders. * Participate in RFC and code review. * 3+ years of experience as an engineer. * Technical background in Python, GraphQL, and MongoDB. * Comfortable in moving across the stack when needed (Typescript/React/Next/Solidity)
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        NEW
        Excellent opportunity to join one of the U.K's leading defence organisations with a reputation for working with the latest and greatest tools and tech and providing 1st class skill up and career development opportunities. On offer - Salary - £45k-£55k D.O.E - Benefits Package - Company annual bonus - up to £2500 - Hybrid working 2/3 days on site in Stevenage OR Bolton - 1st class career progression & skill up ops - 14% pension - plus more What do I need? - Skills with SQL - MS SQL, SQL Server, Oracle or similar - Experience with ETL, API, ESL or similar - Hands on with coding languages such as Python, Bash or similar - Knowledge of Big Data tech such as Hadoop or simlar - Knowledge in the following areas are highly desirable but not essential - AI, Natural Language Processing, OCR - Experience with containerisation via Docker is highly advantageous
        Excellent opportunity to join one of the U.K's leading defence organisations with a reputation for working with the latest and greatest tools and tech and providing 1st class skill up and career development opportunities. On offer - Salary - £45k-£55k D.O.E - Benefits Package - Company annual bonus - up to £2500 - Hybrid working 2/3 days on site in Stevenage OR Bolton - 1st class career progression & skill up ops - 14% pension - plus more What do I need? - Skills with SQL - MS SQL, SQL Server, Oracle or similar - Experience with ETL, API, ESL or similar - Hands on with coding languages such as Python, Bash or similar - Knowledge of Big Data tech such as Hadoop or simlar - Knowledge in the following areas are highly desirable but not essential - AI, Natural Language Processing, OCR - Experience with containerisation via Docker is highly advantageous
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        PREMIUM
        Have the digital world at your feet As an Engineering Technical Lead at the FA, you will be responsible for leading the software engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all development activities. Key responsibilities include establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuring both technical excellence and alignment with business goals.
        Have the digital world at your feet As an Engineering Technical Lead at the FA, you will be responsible for leading the software engineers within your Pod (Team/Value stream). You will be key in ensuring your Pod builds the right thing in the right way. This is a technical leadership role responsible for the end-to-end development of a suite of FA applications. Working primarily within a Microsoft-based technology stack, the role serves as the central point for all development activities. Key responsibilities include establishing coding standards, implementing quality assurance processes, and overseeing the work of developers. The ideal candidate will wear multiple hats-acting as an architect, delivery manager, engineer, quality assurance, mentor, problem solver, and collaborative team member-ensuring both technical excellence and alignment with business goals.
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        Power BI Developer

        DGH Recruitment
        EC1, City of London
        £65000 - £75000 per annum
        A newly created position within the Technology department, the Power BI Developer will lead the firm's reporting transformation-designing dashboards and analytics that empower strategic and operational decision-making across departments. Reporting & Insights * Convert business needs into intuitive Power BI dashboards. * Deliver insights on financials, market trends, and internal KPIs. * Build reusable semantic models and maintain change documentation. Platform Management * Own and optimise the Power BI environment. * Enhance performance via DAX and data model tuning. * Ensure data refresh reliability and reporting consistency. Essential Skills * Advanced Power BI (DAX, Power Query) * Strong data modelling & semantic design * Multi-source data integration (Excel, SQL, APIs) * Clear communication of insights to non-technical users
        A newly created position within the Technology department, the Power BI Developer will lead the firm's reporting transformation-designing dashboards and analytics that empower strategic and operational decision-making across departments. Reporting & Insights * Convert business needs into intuitive Power BI dashboards. * Deliver insights on financials, market trends, and internal KPIs. * Build reusable semantic models and maintain change documentation. Platform Management * Own and optimise the Power BI environment. * Enhance performance via DAX and data model tuning. * Ensure data refresh reliability and reporting consistency. Essential Skills * Advanced Power BI (DAX, Power Query) * Strong data modelling & semantic design * Multi-source data integration (Excel, SQL, APIs) * Clear communication of insights to non-technical users
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        NEW
        About the role We have an exciting opportunity for aFull-Stack JavaScript Engineerto join the elementsuite teamsomeone whos passionate about building high-quality products and tools across the stack. This role blends front-end finesse with back-end capability, and were especially keen to meet developers who can pair modern JavaScript frameworks with solid SQL experience to help power our next-gen HR platform. Youll work closely with our Application Development team to deliver scalable, maintainable software that supports our growing user base. This is a hands-on, end-to-end rolefrom building intuitive interfaces using Vue.js and Knockout.js, to writing performant queries and helping shape our data model. elementsuiteis rewriting the rulebook on how enterprise software is built.
        About the role We have an exciting opportunity for aFull-Stack JavaScript Engineerto join the elementsuite teamsomeone whos passionate about building high-quality products and tools across the stack. This role blends front-end finesse with back-end capability, and were especially keen to meet developers who can pair modern JavaScript frameworks with solid SQL experience to help power our next-gen HR platform. Youll work closely with our Application Development team to deliver scalable, maintainable software that supports our growing user base. This is a hands-on, end-to-end rolefrom building intuitive interfaces using Vue.js and Knockout.js, to writing performant queries and helping shape our data model. elementsuiteis rewriting the rulebook on how enterprise software is built.
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        NEW
        Job Title: Solutions Architect – CRM Job Type- Permanent Location: London (remote/Hybrid) Industry- Real Estate Consultancy Salary- up to £90K p/a Our client, a leading real estate consultancy is undergoing a major transformation to enhance their delivery of innovative solutions and services. They are looking for a skilled Solutions Architect to lead the design and delivery of scalable, high-performance CRM systems, primarily using Microsoft Dynamics 365 (experience with platforms like Salesforce is also valued). This role sits within the Chief Technology Office and supports fast, iterative delivery across value streams. You'll work closely with Product Owners, Business Analysts, and Engineering teams to ensure solutions are resilient, scalable, and aligned with business and technical goals.
        Job Title: Solutions Architect – CRM Job Type- Permanent Location: London (remote/Hybrid) Industry- Real Estate Consultancy Salary- up to £90K p/a Our client, a leading real estate consultancy is undergoing a major transformation to enhance their delivery of innovative solutions and services. They are looking for a skilled Solutions Architect to lead the design and delivery of scalable, high-performance CRM systems, primarily using Microsoft Dynamics 365 (experience with platforms like Salesforce is also valued). This role sits within the Chief Technology Office and supports fast, iterative delivery across value streams. You'll work closely with Product Owners, Business Analysts, and Engineering teams to ensure solutions are resilient, scalable, and aligned with business and technical goals.
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        NEWFEATURED
        Job Title: Principal Software Engineer (Cloud Applications) Location: Hybrid / Remote (Hemel Hempstead) Salary: £100,000 per annum Job Type: Full Time, Permanent Eckoh is a market leader of Customer Engagement Security Solutions, supporting an international client base from our offices in the U.S. and the U.K. Eckoh is owned by Bridgepoint one of the world's leading private asset growth investors, with over $75 billion of assets under management. Our mission is to set the standard for secure interactions between consumers and the world's leading brands. Our innovative products build trust and deliver value through exceptional experiences. What do we do? Eckoh's Customer Engagement Security Solutions help our clients to take payments and transact securely with their customers through all engagement channels.
        Job Title: Principal Software Engineer (Cloud Applications) Location: Hybrid / Remote (Hemel Hempstead) Salary: £100,000 per annum Job Type: Full Time, Permanent Eckoh is a market leader of Customer Engagement Security Solutions, supporting an international client base from our offices in the U.S. and the U.K. Eckoh is owned by Bridgepoint one of the world's leading private asset growth investors, with over $75 billion of assets under management. Our mission is to set the standard for secure interactions between consumers and the world's leading brands. Our innovative products build trust and deliver value through exceptional experiences. What do we do? Eckoh's Customer Engagement Security Solutions help our clients to take payments and transact securely with their customers through all engagement channels.
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        NEW

        QA Analyst

        Scouts
        Sewardstonebury, E4 7QW
        £34462.37 to £34462.37 per year Band E level 3
        Title: QA Analyst Base Location: Gilwell Park (Hybrid), Chingford, London. Term: Fixed Term until 30th May 2026 Salary: £34,462.37 per annum, including £1760.00 outer london weighting and £950.37 Market supplement It’s an exciting time at The Scouts. Our digital transformation programme is an ambitious part of our Skills for Life strategy which aims to enable Scouts to become a digital first organisation. We aim to transform the Scouting experience with digital tools and services for our volunteers, staff and young people which are: Easy, Enlightening, Enabling, Engaging, Enjoyable and Efficient. * We put people at the heart of everything we do * We are bold and open to change * We create digital first, responsive and accessible services * We use data and insight to drive our decisions * We measure, test and learn * We engage, collaborate and partner
        Title: QA Analyst Base Location: Gilwell Park (Hybrid), Chingford, London. Term: Fixed Term until 30th May 2026 Salary: £34,462.37 per annum, including £1760.00 outer london weighting and £950.37 Market supplement It’s an exciting time at The Scouts. Our digital transformation programme is an ambitious part of our Skills for Life strategy which aims to enable Scouts to become a digital first organisation. We aim to transform the Scouting experience with digital tools and services for our volunteers, staff and young people which are: Easy, Enlightening, Enabling, Engaging, Enjoyable and Efficient. * We put people at the heart of everything we do * We are bold and open to change * We create digital first, responsive and accessible services * We use data and insight to drive our decisions * We measure, test and learn * We engage, collaborate and partner
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        NEWPREMIUM

        Software Developer-MS-Stack

        Solus Accident Repair Centres
        North London, London
        GBP £35,000.00/Yr. - GBP £50,000.00/Yr.
        Overview We are looking for a highly motivated individual to help us build the next generation of data analysis tools and infrastructure for our Award-Winning Accident Repair Network. Our mission is to develop the tools and technology that enable our teams to get our customers back to normal. The candidatewill be reporting into our Development Team Manager, assisting with our bespoke award-winning IT system Evolve andis a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with both our internal development team and our partner organisation's development team. Your focus will be on improving the efficiency and capabilities of Solus by developing Microsoft stack in an Agile manner.
        Overview We are looking for a highly motivated individual to help us build the next generation of data analysis tools and infrastructure for our Award-Winning Accident Repair Network. Our mission is to develop the tools and technology that enable our teams to get our customers back to normal. The candidatewill be reporting into our Development Team Manager, assisting with our bespoke award-winning IT system Evolve andis a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with both our internal development team and our partner organisation's development team. Your focus will be on improving the efficiency and capabilities of Solus by developing Microsoft stack in an Agile manner.
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        NEW

        Lead Front Office Developer (Commodities, C#)

        Hays
        EC1, City of London
        £130000.0 - £135000.0 per annum + Competitive + Benefits Package
        Hays Software Engineering are looking for a Lead C# Developer to join a Commodities team within a world-renowned Investment Bank to be hands-on & lead their Front Office Commodities Trade Development team. * Manage the Commodities Development team and act as primary liaison with business and IT stakeholders. * Oversee key deliveries and organise business prioritisation across Commodities Market projects. * Lead hands-on development of pricing, market data, risk, and reporting tools. * Collaborate with global teams to design scalable, resilient systems supporting front and support offices. * Programming & Frameworks: .NET (C#, .NET Core), Entity Framework, WPF; microservices architecture * Frontend Development: Angular / AngularJS * Databases: SQL Server, Oracle, MongoDB * Tools & APIs: Visual Studio, Bloomberg API, RMDS, Reuters EIKON
        Hays Software Engineering are looking for a Lead C# Developer to join a Commodities team within a world-renowned Investment Bank to be hands-on & lead their Front Office Commodities Trade Development team. * Manage the Commodities Development team and act as primary liaison with business and IT stakeholders. * Oversee key deliveries and organise business prioritisation across Commodities Market projects. * Lead hands-on development of pricing, market data, risk, and reporting tools. * Collaborate with global teams to design scalable, resilient systems supporting front and support offices. * Programming & Frameworks: .NET (C#, .NET Core), Entity Framework, WPF; microservices architecture * Frontend Development: Angular / AngularJS * Databases: SQL Server, Oracle, MongoDB * Tools & APIs: Visual Studio, Bloomberg API, RMDS, Reuters EIKON
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        NEW
        We are seeking a highly motivated and skilled Data Analyst Engineer to join our team at Sadel Group, a Family Office that owns and operates operational real estate, including Magnavale. a leading operator of cold storage facilities for frozen food. We combine rigorous analysis with entrepreneurial energy to support our portfolio companies through operational and strategic transformation. As part of our internal data analysis team, you'll work directly with stakeholders across the group to build scalable data capabilities and processes that unlock insights and drive performance. Key Responsibilities Audit and assess existing data workflows and pipelines across the group. Design and implement scalable, efficient data pipelines and ETL processes. Identify opportunities to apply automation to reduce manual effort and improve reliability.
        We are seeking a highly motivated and skilled Data Analyst Engineer to join our team at Sadel Group, a Family Office that owns and operates operational real estate, including Magnavale. a leading operator of cold storage facilities for frozen food. We combine rigorous analysis with entrepreneurial energy to support our portfolio companies through operational and strategic transformation. As part of our internal data analysis team, you'll work directly with stakeholders across the group to build scalable data capabilities and processes that unlock insights and drive performance. Key Responsibilities Audit and assess existing data workflows and pipelines across the group. Design and implement scalable, efficient data pipelines and ETL processes. Identify opportunities to apply automation to reduce manual effort and improve reliability.
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        NEW

        Microsoft Dynamics Engineer - SC Cleared

        Hays
        EC1, City of London
        £350.0 - £400.0 per day + £400 inside IR35
        Your new company One of the largest Government Organisations responsible for Trade and InvestmentYour new role What you'll need to succeed Are you looking to join as a key member of the Microsoft team? Are you looking to utilise Microsoft Office products, specifically Microsoft Dynamics, to deliver solutions in rapid and agile ways that will reduce burdens on staff, maximise the use of data and support decision-making? You will develop your own solutions and be expected to be innovative, but ensure compliance with the appropriate requirements for data protection and information security. As part of this role, you'll actively promote the use of M365 applications, helping the department make the most of the M365 applications that are available. * Develop and configure new and existing services using Power Platform, Plug-Ins, and Dynamics 365
        Your new company One of the largest Government Organisations responsible for Trade and InvestmentYour new role What you'll need to succeed Are you looking to join as a key member of the Microsoft team? Are you looking to utilise Microsoft Office products, specifically Microsoft Dynamics, to deliver solutions in rapid and agile ways that will reduce burdens on staff, maximise the use of data and support decision-making? You will develop your own solutions and be expected to be innovative, but ensure compliance with the appropriate requirements for data protection and information security. As part of this role, you'll actively promote the use of M365 applications, helping the department make the most of the M365 applications that are available. * Develop and configure new and existing services using Power Platform, Plug-Ins, and Dynamics 365
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        NEW

        Software Developer (Microsoft Stack)

        Solus Accident Repair Centres
        North London, London
        GBP £35,000.00/Yr. - GBP £50,000.00/Yr.
        Overview Hybrid based with 50% at ourStansted office/50% remote. We are looking for a highly motivated individual to help us build the next generation of data analysis tools and infrastructure for our Award-Winning Accident Repair Network. Our mission is to develop the tools and technology that enable our teams to get our customers back to normal. The candidatewill be reporting into our Development Team Manager, assisting with our bespoke award-winning IT system Evolve andis a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with both our internal development team and our partner organisation's development team.
        Overview Hybrid based with 50% at ourStansted office/50% remote. We are looking for a highly motivated individual to help us build the next generation of data analysis tools and infrastructure for our Award-Winning Accident Repair Network. Our mission is to develop the tools and technology that enable our teams to get our customers back to normal. The candidatewill be reporting into our Development Team Manager, assisting with our bespoke award-winning IT system Evolve andis a fundamental role to our growth and success. Responsibilities As a Software Developer, you will play a key role in developing our in-house Software, Evolve, which is hosted in cloud environment. You will collaborate closely with both our internal development team and our partner organisation's development team.
        more
        NEW

        ServiceNow Developer

        Sopra Steria Limited
        HP2, Hemel Hempstead
        Up to £90,000 per annum
        We're on the lookout for a passionate Lead ServiceNow Developer to stimulate innovation, lead a hard-working team, and craft the future of digital transformation! Sopra Steria's Strategic Digital Services are once again growing their ServiceNow capability and are in the market for Lead ServiceNow Developers! We are seeking an experiencedLead ServiceNow Developerto drive the design, development, and implementation of ServiceNow solutions. In this role, you will direct a team of developers, collaborate with key stakeholders, and drive the successful delivery of scalable and efficient ServiceNow applications. You will be responsible for technical strategy, best practices, and innovative solutions to enhance business processes. We can offer great career progression opportunities, benefits which you can flex to meet your needs and training and development opportunities.
        We're on the lookout for a passionate Lead ServiceNow Developer to stimulate innovation, lead a hard-working team, and craft the future of digital transformation! Sopra Steria's Strategic Digital Services are once again growing their ServiceNow capability and are in the market for Lead ServiceNow Developers! We are seeking an experiencedLead ServiceNow Developerto drive the design, development, and implementation of ServiceNow solutions. In this role, you will direct a team of developers, collaborate with key stakeholders, and drive the successful delivery of scalable and efficient ServiceNow applications. You will be responsible for technical strategy, best practices, and innovative solutions to enhance business processes. We can offer great career progression opportunities, benefits which you can flex to meet your needs and training and development opportunities.
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        NEWFEATURED

        Senior MVC Developer

        Southern Communications Ltd
        HP2, Hemel Hempstead
        £75,000 per annum
        Office Location: Hemel Hempstead - Hybrid Working Salary: £75,000 Key Responsibilities Technical Delivery & Solution Design * Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Full working knowledge of SQL SERVER and Entity Framework. * Work closely with business and technical teams to analyse requirements, define architecture, and implement scalable, maintainable solutions. * Develop and support bothMVC and Console apps, leveraging SQL Server and integrating with external data sources and APIs. * Lead end-to-end implementations, including security, data migration, integration, and performance tuning. Team & Technical Leadership
        Office Location: Hemel Hempstead - Hybrid Working Salary: £75,000 Key Responsibilities Technical Delivery & Solution Design * Take a lead role in the development and support ofMicrosoft MVC and .NET web applications and C# Console and API solutions, ensuring best practices are followed throughout the software lifecycle. * Full working knowledge of SQL SERVER and Entity Framework. * Work closely with business and technical teams to analyse requirements, define architecture, and implement scalable, maintainable solutions. * Develop and support bothMVC and Console apps, leveraging SQL Server and integrating with external data sources and APIs. * Lead end-to-end implementations, including security, data migration, integration, and performance tuning. Team & Technical Leadership
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        NEW

        Software Development Team Lead

        Hays
        EC1, City of London
        £90000.0 - £110000.0 per annum + Competitive + Benefits Package
        Hays Software Engineering are seeking a talented and experienced Software Development Lead to join our Legal Start-Up client. In this pivotal role, you'll manage a small team of developers while taking a hands-on approach to the Architecture, Design, Development & Security of our clients SaaS platform. This position will report directly to the CEO. * Lead a small team of software developers, fostering a collaborative and productive environment. * Drive the overall solution architecture for our SaaS platform and its supporting AWS infrastructure. * Write and maintain high-quality, tested code in TypeScript and Node.js. * Work with our existing technology stack, including PostgreSQL, NestJS, PostgREST, and an AngularJS frontend.
        Hays Software Engineering are seeking a talented and experienced Software Development Lead to join our Legal Start-Up client. In this pivotal role, you'll manage a small team of developers while taking a hands-on approach to the Architecture, Design, Development & Security of our clients SaaS platform. This position will report directly to the CEO. * Lead a small team of software developers, fostering a collaborative and productive environment. * Drive the overall solution architecture for our SaaS platform and its supporting AWS infrastructure. * Write and maintain high-quality, tested code in TypeScript and Node.js. * Work with our existing technology stack, including PostgreSQL, NestJS, PostgREST, and an AngularJS frontend.
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        NEW

        Business Systems Developer

        LJ Recruitment Limited
        AL7, Welwyn Garden City
        £45000 - £60000 per annum
        Salary: £45,000 - £60,000 per annum Location: Hybrid - 2-3 days per week on-site in Welwyn Garden City Department: Data & Systems Team Reports to: Data & Systems Manager A dynamic and forward-thinking organisation is seeking a Business Systems Developer to join its Data & Systems Team. This is a fantastic opportunity for a mid-level professional with hands-on experience in ERP systems, automation, and business process optimisation to contribute to a growing business's digital transformation journey. The Business Systems Developer will serve as the primary administrator for Microsoft Dynamics 365 Business Central, ensuring stability, security, and scalability of core systems. This role will play a crucial part in streamlining workflows across finance, operations, and reporting functions, with a focus on reducing manual processes and driving automation.
        Salary: £45,000 - £60,000 per annum Location: Hybrid - 2-3 days per week on-site in Welwyn Garden City Department: Data & Systems Team Reports to: Data & Systems Manager A dynamic and forward-thinking organisation is seeking a Business Systems Developer to join its Data & Systems Team. This is a fantastic opportunity for a mid-level professional with hands-on experience in ERP systems, automation, and business process optimisation to contribute to a growing business's digital transformation journey. The Business Systems Developer will serve as the primary administrator for Microsoft Dynamics 365 Business Central, ensuring stability, security, and scalability of core systems. This role will play a crucial part in streamlining workflows across finance, operations, and reporting functions, with a focus on reducing manual processes and driving automation.
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        NEWFEATURED

        Dynamics 365 CRM Product Manager

        Southern Communications Ltd
        HP2, Hemel Hempstead
        £70,000 per annum
        Office Location: Hemel Hempstead - Hybrid Working Salary: £70,000 We are seeking a capable and business-savvyDynamics 365 CRM Product Managerto lead the strategy, design, and evolution of our CRM platform. This is a hybrid role that blends traditional product ownership responsibilities with deep platform expertiseincluding hands-on configuration, role management, plugin oversight, and solution optimisation across the Dynamics 365 environment. You will act as the central point of contact for CRM functionality, ensuring alignment with business processes and championing continuous improvement through well-informed design and feature decisions. Product Ownership * Serve as the primary owner of the Dynamics 365 CRM product roadmap, prioritising features and enhancements in line with business goals.
        Office Location: Hemel Hempstead - Hybrid Working Salary: £70,000 We are seeking a capable and business-savvyDynamics 365 CRM Product Managerto lead the strategy, design, and evolution of our CRM platform. This is a hybrid role that blends traditional product ownership responsibilities with deep platform expertiseincluding hands-on configuration, role management, plugin oversight, and solution optimisation across the Dynamics 365 environment. You will act as the central point of contact for CRM functionality, ensuring alignment with business processes and championing continuous improvement through well-informed design and feature decisions. Product Ownership * Serve as the primary owner of the Dynamics 365 CRM product roadmap, prioritising features and enhancements in line with business goals.
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        NEW
        A brand new vacancy for a Software Engineer with an incredible scientific instrumentation start-up has become available, based in West London (W12). The Software Engineer will form part of an interdisciplinary team developing software to automate laboratory equipment and processes. * Collaborate cross-functionally with scientists, engineers and bioinformaticians to streamline experimental workflows, improve user experience, and integrate software with complex hardware systems. * Develop and refine GUIs for prototype instruments working with stakeholders. * Develop and maintain embedded software or firmware for instruments where applicable. * Ensure robust communication between hardware components e.g., sensors, actuators, pumps. * Develop software to automate lab processes, sample handling, experimental protocols, and data collection.
        A brand new vacancy for a Software Engineer with an incredible scientific instrumentation start-up has become available, based in West London (W12). The Software Engineer will form part of an interdisciplinary team developing software to automate laboratory equipment and processes. * Collaborate cross-functionally with scientists, engineers and bioinformaticians to streamline experimental workflows, improve user experience, and integrate software with complex hardware systems. * Develop and refine GUIs for prototype instruments working with stakeholders. * Develop and maintain embedded software or firmware for instruments where applicable. * Ensure robust communication between hardware components e.g., sensors, actuators, pumps. * Develop software to automate lab processes, sample handling, experimental protocols, and data collection.
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        NEW

        Senior Full Stack Developer PHP

        ByteHire
        NW6, North West London
        From £70,000 to £85,000 per annum
        Job Role: Senior Full-Stack PHP Developer Working Hours: 5 days per week Job Type: Permanent Salary: £70,000 - £85,000 depending on experience Location: London Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 About the Company Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
        Job Role: Senior Full-Stack PHP Developer Working Hours: 5 days per week Job Type: Permanent Salary: £70,000 - £85,000 depending on experience Location: London Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 About the Company Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
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        NEW

        Security Service Engineer

        Chubb Fire & Security Limited
        AL1, St. Albans
        From £30,000 to £45,000 per annum
        Think you know Chubb? We might just surprise you! Chubb is so much more than a fire and security business; we are an organisation that delivers innovative solutions and leverages new technologies to provide best in class service to our expanding client base. You wont see locks and safes here, but we are proud of our 200-year heritage. Our commitment to our people is to continually develop and innovate so that we grow together as your career unfolds. As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people. SALARY: Opportunity to earn in excess of £45,000 (This includes basic and additional supplements - base is determined on experience) LOCATION: St Albans Area
        Think you know Chubb? We might just surprise you! Chubb is so much more than a fire and security business; we are an organisation that delivers innovative solutions and leverages new technologies to provide best in class service to our expanding client base. You wont see locks and safes here, but we are proud of our 200-year heritage. Our commitment to our people is to continually develop and innovate so that we grow together as your career unfolds. As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people. SALARY: Opportunity to earn in excess of £45,000 (This includes basic and additional supplements - base is determined on experience) LOCATION: St Albans Area
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        NEWFEATURED

        Integration Solution Architect

        Kennedy Pearce Consulting
        West End, W1
        £65000 - £75000 per annum + D.Bonus, Healthcare, Dental, 15% Pension
        A financial institution in London is hiring an Integration & Solution Architect to help lead the design and delivery of complex, enterprise-wide integration solutions. You'll play a key role in shaping technical architecture and system integration strategy-working across cloud, on-prem, and SaaS environments to ensure scalable, secure, and efficient solutions that support long-term business goals. * Design and document architecture blueprints that support business and tech roadmaps * Define and implement integration strategies across on-prem and cloud systems * Lead on middleware, APIs, microservices, and SaaS integrations * Work closely with internal dev, DevOps, data, and security teams to deliver robust solutions * Review and optimise existing systems and architecture for performance and compliance
        A financial institution in London is hiring an Integration & Solution Architect to help lead the design and delivery of complex, enterprise-wide integration solutions. You'll play a key role in shaping technical architecture and system integration strategy-working across cloud, on-prem, and SaaS environments to ensure scalable, secure, and efficient solutions that support long-term business goals. * Design and document architecture blueprints that support business and tech roadmaps * Define and implement integration strategies across on-prem and cloud systems * Lead on middleware, APIs, microservices, and SaaS integrations * Work closely with internal dev, DevOps, data, and security teams to deliver robust solutions * Review and optimise existing systems and architecture for performance and compliance
        more
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        Frequently Asked Questions

        How many temporary API jobs are there in Welwyn Garden City?
        There are 25 temporary API jobs within 20 miles of Welwyn Garden City available on Jobsite right now.

        What other similar jobs are there to temporary API jobs in Welwyn Garden City?
        As well as temporary API jobs in Welwyn Garden City, you can find temporary IT, Software Development, Management, amongst many others.