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        11 Contract API jobs in Welwyn Garden City + 20 miles

        Axway API Developer

        Randstad Digital
        EC1, City of London
        £500 - £650 per day
        6 months contract Inside IR35?? £500 to £650 a day?? Remote Working (UK based) *Active SC Clearance is needed* A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. You will contribute to a large government gateway project, and active SC clearance is required. The main focus of this role is to design and develop Axway policies while maintaining automated testing and code deployment. You will also be responsible for liaising with stakeholders to define requirements and design comprehensive solutions. * Axway's core products: Policy Studio, API Gateway, and API Manager. * Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. * Data and messaging formats: JSON, XML, SOAP, and REST. * Linux scripting and environments. * Using DevOps toolsets to automate testing and deployments.
        6 months contract Inside IR35?? £500 to £650 a day?? Remote Working (UK based) *Active SC Clearance is needed* A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. You will contribute to a large government gateway project, and active SC clearance is required. The main focus of this role is to design and develop Axway policies while maintaining automated testing and code deployment. You will also be responsible for liaising with stakeholders to define requirements and design comprehensive solutions. * Axway's core products: Policy Studio, API Gateway, and API Manager. * Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. * Data and messaging formats: JSON, XML, SOAP, and REST. * Linux scripting and environments. * Using DevOps toolsets to automate testing and deployments.
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        NEWFEATURED

        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
        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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        The Job As a Data Engineer, you will be working in the Red Engine Business Insightsteam, helping to build out the existing data and analytics platform. This role is placed within a small team, allowing the successful candidate to work closely with the senior engineers in implementing bespoke features and enhancements to our data platform using the latest technology. In this role you will assist the senior and leadengineers as well assist in driving the development of the data platform. This will including meeting with key business stakeholders to gather technical requirements and converting these requirements into technical data solutions under the guidance of the lead engineer within the Data & Analytics platform. * Developing and maintaining data pipelines to orchestrate the ingestion of data from disparate source systems into a centralised data analytics platform.
        The Job As a Data Engineer, you will be working in the Red Engine Business Insightsteam, helping to build out the existing data and analytics platform. This role is placed within a small team, allowing the successful candidate to work closely with the senior engineers in implementing bespoke features and enhancements to our data platform using the latest technology. In this role you will assist the senior and leadengineers as well assist in driving the development of the data platform. This will including meeting with key business stakeholders to gather technical requirements and converting these requirements into technical data solutions under the guidance of the lead engineer within the Data & Analytics platform. * Developing and maintaining data pipelines to orchestrate the ingestion of data from disparate source systems into a centralised data analytics platform.
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        NEWPREMIUM

        AI/ML engineer - SC clearance

        LA International Computer Consultants Ltd
        EC1, City of London
        £500 - £550 per day
        Role: Backend engineer Rate: IR35 Status yet to be determined Location: Remote with occasional travel to London or Corsham Duration: 6-month initial contract SC clearance required. About the Role You are a systems thinker with deep experience in backend engineering and distributed data infrastructure. You thrive in high-stakes environments, know how to ship reliable code fast, and are pragmatic about trade-o=s. You understand the unique constraints of experimental, edge-deployable systems, especially in air-gapped environments where resilience and autonomy matter most. This role focuses on building and adapting backend services to support experimental AI systems deployed in sensitive Defence contexts. You will help create and manage robust, portable pipelines for data ingestion, orchestration, model interaction, and
        Role: Backend engineer Rate: IR35 Status yet to be determined Location: Remote with occasional travel to London or Corsham Duration: 6-month initial contract SC clearance required. About the Role You are a systems thinker with deep experience in backend engineering and distributed data infrastructure. You thrive in high-stakes environments, know how to ship reliable code fast, and are pragmatic about trade-o=s. You understand the unique constraints of experimental, edge-deployable systems, especially in air-gapped environments where resilience and autonomy matter most. This role focuses on building and adapting backend services to support experimental AI systems deployed in sensitive Defence contexts. You will help create and manage robust, portable pipelines for data ingestion, orchestration, model interaction, and
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        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

        Backend engineer

        LA International Computer Consultants Ltd
        EC1, City of London
        £500 - £550 per day
        Role: Backend engineer Rate: IR35 Status yet to be determined Location: Remote with occasional travel to London Duration: 6-month initial contract SC clearance required. About the Role You are a systems thinker with deep experience in backend engineering and distributed data infrastructure. You thrive in high-stakes environments, know how to ship reliable code fast, and are pragmatic about trade-o=s. You understand the unique constraints of experimental, edge-deployable systems, especially in air-gapped environments where resilience and autonomy matter most. This role focuses on building and adapting backend services to support experimental AI systems deployed in sensitive Defence contexts. You will help create and manage robust, portable pipelines for data ingestion, orchestration, model interaction, and
        Role: Backend engineer Rate: IR35 Status yet to be determined Location: Remote with occasional travel to London Duration: 6-month initial contract SC clearance required. About the Role You are a systems thinker with deep experience in backend engineering and distributed data infrastructure. You thrive in high-stakes environments, know how to ship reliable code fast, and are pragmatic about trade-o=s. You understand the unique constraints of experimental, edge-deployable systems, especially in air-gapped environments where resilience and autonomy matter most. This role focuses on building and adapting backend services to support experimental AI systems deployed in sensitive Defence contexts. You will help create and manage robust, portable pipelines for data ingestion, orchestration, model interaction, and
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        NEW

        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

        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, 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, 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

        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

        136 exact matches jobs are outside your preferred location

        Senior JavaScript Engineer / Developer (Vue.js API) London to £100k Do you have expertise with JavaScript? You could be progressing your career in a senior, hands-on Senior JavaScript Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior JavaScript Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business.
        Senior JavaScript Engineer / Developer (Vue.js API) London to £100k Do you have expertise with JavaScript? You could be progressing your career in a senior, hands-on Senior JavaScript Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior JavaScript Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business.
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        NEWPREMIUM
        Design and buildnext generation of high-scale SaaS platforms. We're looking for a senior/lead engineering consultant with deep expertise in GraphQL to take a leading role in developing our robust TypeScript/Node.js backend. You will be instrumental in shaping our technical direction, driving the evolution of our APIs, ensuring our services are resilient, scalable and secure within a cutting-edge, cloud-native environment (Helm, Kubernetes). The Deliverables * Design and buildsophisticated, scalable GraphQL APIs and backend services using TypeScript and Node.js. * Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Champion best practicein code quality, automated testing (Vitest, Playwright) and observability to deliver resilient, maintainable, and production-ready business logic.
        Design and buildnext generation of high-scale SaaS platforms. We're looking for a senior/lead engineering consultant with deep expertise in GraphQL to take a leading role in developing our robust TypeScript/Node.js backend. You will be instrumental in shaping our technical direction, driving the evolution of our APIs, ensuring our services are resilient, scalable and secure within a cutting-edge, cloud-native environment (Helm, Kubernetes). The Deliverables * Design and buildsophisticated, scalable GraphQL APIs and backend services using TypeScript and Node.js. * Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Champion best practicein code quality, automated testing (Vitest, Playwright) and observability to deliver resilient, maintainable, and production-ready business logic.
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        Senior Full Stack Developer / Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business.
        Senior Full Stack Developer / Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business.
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        NEWPREMIUM

        Mulesoft Technical Lead

        LA International Computer Consultants Ltd
        Lambeth, SE1 7ND
        £700 - £765 per day
        Required: Mulesoft Technical Lead Location: Remote Duration: 12 month initial contract IR35 Status: Inside Working with the Project Manager, architects, clients & other stakeholders to implement MuleSoft APIs. This role will require knowledge of MuleSoft's Anypoint Studio & Anypoint Platform, which includes Design Center, Runtime Manager, API Manager, Exchange, etc. You must be capable of understanding business requirements, working with stakeholders & implementing complex integrations. Responsibilities: Designing & developing integration solutions using MuleSoft Anypoint Platform. Building & maintaining integration flows using MuleSoft's Anypoint Studio. Creating & implementing custom connectors and modules. Collaborating with other developers & stakeholders to understand business requirements & translate them into integration solutions.
        Required: Mulesoft Technical Lead Location: Remote Duration: 12 month initial contract IR35 Status: Inside Working with the Project Manager, architects, clients & other stakeholders to implement MuleSoft APIs. This role will require knowledge of MuleSoft's Anypoint Studio & Anypoint Platform, which includes Design Center, Runtime Manager, API Manager, Exchange, etc. You must be capable of understanding business requirements, working with stakeholders & implementing complex integrations. Responsibilities: Designing & developing integration solutions using MuleSoft Anypoint Platform. Building & maintaining integration flows using MuleSoft's Anypoint Studio. Creating & implementing custom connectors and modules. Collaborating with other developers & stakeholders to understand business requirements & translate them into integration solutions.
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        Solution Architect role - Contract, Inside IR35 - London - Hybrid I am working on an exciting opportunity with a leading insurer operating in the Specialty Markets. They are urgently seeking a highly experienced Solution Architect to join their dynamic on a day-rate contract basis. As a Solution Architect, you will play a pivotal role in shaping the technical direction of innovative digital products, driving architectural excellence across complex insurance solutions. Candidates must have prior experience as a Solution Architect within the Specialty Insurance and/or London Market sector. This domain expertise is critical to understanding the unique challenges and regulatory landscape of the industry. * Translate product vision and business outcomes into technical enablers and architectural building blocks.
        Solution Architect role - Contract, Inside IR35 - London - Hybrid I am working on an exciting opportunity with a leading insurer operating in the Specialty Markets. They are urgently seeking a highly experienced Solution Architect to join their dynamic on a day-rate contract basis. As a Solution Architect, you will play a pivotal role in shaping the technical direction of innovative digital products, driving architectural excellence across complex insurance solutions. Candidates must have prior experience as a Solution Architect within the Specialty Insurance and/or London Market sector. This domain expertise is critical to understanding the unique challenges and regulatory landscape of the industry. * Translate product vision and business outcomes into technical enablers and architectural building blocks.
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        Are you an experienced .Net (C#) Developer, with some solid experience in API development, looking to take on your next Software Engineering role in a growing SaaS product company? Keen to grow your technical skills around .Net 8 / C# / API & MySQL development & look into new Generative AI / LLM dev' tools, too? If yes to the above & you’d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we’d like to speak with you! Job title: .Net (C#) API Developer Location: Banbury, Oxfordshire. Hybrid working: 2 office days per week, 3 from home, flexible. Salary: ~£50K Basic + Benefits package. We can be somewhat flexible though - so please just get in touch. You’ll have the full support of an Agile Scrum Master, excellent technical product team & obviously fellow software engineers in your team.
        Are you an experienced .Net (C#) Developer, with some solid experience in API development, looking to take on your next Software Engineering role in a growing SaaS product company? Keen to grow your technical skills around .Net 8 / C# / API & MySQL development & look into new Generative AI / LLM dev' tools, too? If yes to the above & you’d like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we’d like to speak with you! Job title: .Net (C#) API Developer Location: Banbury, Oxfordshire. Hybrid working: 2 office days per week, 3 from home, flexible. Salary: ~£50K Basic + Benefits package. We can be somewhat flexible though - so please just get in touch. You’ll have the full support of an Agile Scrum Master, excellent technical product team & obviously fellow software engineers in your team.
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        NEWFEATURED
        Senior Integration Developer – Team Lead (fully remote) £70,000 - £80,000 Fully Remote We are seeking a highly skilled and motivated Senior Integration Developer to lead a small but impactful Integration Team (2–3 developers). This position is key to designing, developing, and managing enterprise-grade integration solutions using Informatica Intelligent Cloud Services (IICS) and Informatica MDM. Key Responsibilities Leadership & Strategy * Lead and mentor a team of 2–3 integration developers, fostering collaboration and performance. * Define and implement integration architecture and best practices. * Work with stakeholders across business units to translate integration needs into technical solutions. Technical Delivery * Design, develop, and maintain workflows using Informatica iPaaS (IICS). * Implement and manage Master Data Management (MDM) solutions.
        Senior Integration Developer – Team Lead (fully remote) £70,000 - £80,000 Fully Remote We are seeking a highly skilled and motivated Senior Integration Developer to lead a small but impactful Integration Team (2–3 developers). This position is key to designing, developing, and managing enterprise-grade integration solutions using Informatica Intelligent Cloud Services (IICS) and Informatica MDM. Key Responsibilities Leadership & Strategy * Lead and mentor a team of 2–3 integration developers, fostering collaboration and performance. * Define and implement integration architecture and best practices. * Work with stakeholders across business units to translate integration needs into technical solutions. Technical Delivery * Design, develop, and maintain workflows using Informatica iPaaS (IICS). * Implement and manage Master Data Management (MDM) solutions.
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        Fullstack Engineer (Vue. Js & .Net) London hybrid working 2 days per week - Contract Opportunity We are seeking a talented Full Stack Developer with strong skills in Vue.js for front-end development and C# .NET for backend services, along with some knowledge or experience in SQL. You will be designing, building, and maintaining scalable web applications that integrate seamlessly with backend APIs and databases. Minimum Requirements * 5+ years of full stack development experience with Vue, TypeScript and C# .NET. * Strong understanding of Vue 3, Composition API, Pinia. * Proficiency in building RESTful APIs and integrating them with Vue applications. * Knowledge of Vitest (front-end), MSTest or xUnit (.NET) for unit testing and test-driven development practices. * Basic to intermediate SQL skills (queries, stored procedures, indexing).
        Fullstack Engineer (Vue. Js & .Net) London hybrid working 2 days per week - Contract Opportunity We are seeking a talented Full Stack Developer with strong skills in Vue.js for front-end development and C# .NET for backend services, along with some knowledge or experience in SQL. You will be designing, building, and maintaining scalable web applications that integrate seamlessly with backend APIs and databases. Minimum Requirements * 5+ years of full stack development experience with Vue, TypeScript and C# .NET. * Strong understanding of Vue 3, Composition API, Pinia. * Proficiency in building RESTful APIs and integrating them with Vue applications. * Knowledge of Vitest (front-end), MSTest or xUnit (.NET) for unit testing and test-driven development practices. * Basic to intermediate SQL skills (queries, stored procedures, indexing).
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        NEWPREMIUM

        Senior Digital Developer (Vue/React, .Net Core, Azure)

        Stott & May Professional Search Limited
        London
        £70000 - £80000 per annum + Benefits
        A leading retailer are looking for a Senior Digital Developer with extensive experience developing applications using Azure cloud services and .NET to join their team. The client have a number of exiting projects in the pipeline, with this role offered as a remote/hybrid working pattern. As the Senior Digital Developer (Vue/React, .Net Core, Azure) you will be responsible for designing, developing and testing Azure-based web and mobile applications using the latest technology and AI assisted tooling. You will work as part of an agile cross-functional team, collaborating with other Developers, QA Engineers, and Project Managers to deliver high-quality solutions that meet business requirements and follow best practices.
        A leading retailer are looking for a Senior Digital Developer with extensive experience developing applications using Azure cloud services and .NET to join their team. The client have a number of exiting projects in the pipeline, with this role offered as a remote/hybrid working pattern. As the Senior Digital Developer (Vue/React, .Net Core, Azure) you will be responsible for designing, developing and testing Azure-based web and mobile applications using the latest technology and AI assisted tooling. You will work as part of an agile cross-functional team, collaborating with other Developers, QA Engineers, and Project Managers to deliver high-quality solutions that meet business requirements and follow best practices.
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        A leading retailer are looking for a Senior Digital Developer with extensive experience developing applications using Azure cloud services and .NET to join their team. The client have a number of exiting projects in the pipeline, with this role offered as a remote/hybrid working pattern. As the Senior Digital Developer (Vue/React, .Net Core, Azure) you will be responsible for designing, developing and testing Azure-based web and mobile applications using the latest technology and AI assisted tooling. You will work as part of an agile cross-functional team, collaborating with other Developers, QA Engineers, and Project Managers to deliver high-quality solutions that meet business requirements and follow best practices.
        A leading retailer are looking for a Senior Digital Developer with extensive experience developing applications using Azure cloud services and .NET to join their team. The client have a number of exiting projects in the pipeline, with this role offered as a remote/hybrid working pattern. As the Senior Digital Developer (Vue/React, .Net Core, Azure) you will be responsible for designing, developing and testing Azure-based web and mobile applications using the latest technology and AI assisted tooling. You will work as part of an agile cross-functional team, collaborating with other Developers, QA Engineers, and Project Managers to deliver high-quality solutions that meet business requirements and follow best practices.
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        Company Description At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description Join our team and youll be responsible for our recommender systems and search algorithms,building the core infrastructure that powers millions of meaningful connections. Working in theSearch & Match domain, you willbe focusing on deploying and scaling machine learning models, particularly large language models (LLMs).
        Company Description At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description Join our team and youll be responsible for our recommender systems and search algorithms,building the core infrastructure that powers millions of meaningful connections. Working in theSearch & Match domain, you willbe focusing on deploying and scaling machine learning models, particularly large language models (LLMs).
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        Company Description At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description Join our team and youll be responsible for our recommender systems and search algorithms,building the core infrastructure that powers millions of meaningful connections. Working in theSearch & Match domain, you willbe focusing on deploying and scaling machine learning models, particularly large language models (LLMs).
        Company Description At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description Join our team and youll be responsible for our recommender systems and search algorithms,building the core infrastructure that powers millions of meaningful connections. Working in theSearch & Match domain, you willbe focusing on deploying and scaling machine learning models, particularly large language models (LLMs).
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        Senior Python Engineer

        TEKsystems
        Central London, London
        475.00 - 700.00 GBP/Daily
        5 Days in office Cambridge Our client is seeking a contract software engineer to support and enhance the software and systems used in their data collection lab located in Cambridge, UK. The role involves building software that interfaces with cutting-edge prototype devices and integrating them into a robust data collection platform. Youll collaborate with a multidisciplinary team of audio/video engineers, recording technicians, software engineers, and researchers across locations. The role requires strong communication and teamwork skills to scope, prioritize, and deliver high-quality, maintainable software. * Improve efficiency, reliability, and accuracy of data collection processes. * Work with audio, video, inertial measurement, and other sensor equipment. * Deploy, test, and evaluate updates to distributed data collection systems.
        5 Days in office Cambridge Our client is seeking a contract software engineer to support and enhance the software and systems used in their data collection lab located in Cambridge, UK. The role involves building software that interfaces with cutting-edge prototype devices and integrating them into a robust data collection platform. Youll collaborate with a multidisciplinary team of audio/video engineers, recording technicians, software engineers, and researchers across locations. The role requires strong communication and teamwork skills to scope, prioritize, and deliver high-quality, maintainable software. * Improve efficiency, reliability, and accuracy of data collection processes. * Work with audio, video, inertial measurement, and other sensor equipment. * Deploy, test, and evaluate updates to distributed data collection systems.
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        Software Developer - Active SC, Python, AWS

        Hays
        London
        £400.0 - £425.0 per day + up to £425 per day (InsideIR35)
        Up to £425 per day (Inside IR35) London / Primarily Remote 8 Months My client is an international consultancy, who require a Software Developer that holds active SC clearance, with Python, Terraform and AWS to work closely with a key end client. * Proven experience as a software developer with data integration experience (API) * Extensive experience programming in Python * Active Security Clearance (SC) * Expertise in AWS, Kubernetes and CI/CD (Continuous Integration / Continuous Deployment) * Strong working knowledge of Elastic, Kibana and React * Excellent communication skills * Working knowledge of Docker / Single Sign On * Familiarity with Agile practices If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
        Up to £425 per day (Inside IR35) London / Primarily Remote 8 Months My client is an international consultancy, who require a Software Developer that holds active SC clearance, with Python, Terraform and AWS to work closely with a key end client. * Proven experience as a software developer with data integration experience (API) * Extensive experience programming in Python * Active Security Clearance (SC) * Expertise in AWS, Kubernetes and CI/CD (Continuous Integration / Continuous Deployment) * Strong working knowledge of Elastic, Kibana and React * Excellent communication skills * Working knowledge of Docker / Single Sign On * Familiarity with Agile practices If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
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        How many contract API jobs are there in Welwyn Garden City?
        There are 11 contract API jobs within 20 miles of Welwyn Garden City available on Jobsite right now.

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