Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations

Filters

Permanent
Sort byRelevance
Commute time
Locations
Salaries
Date posted
    Type of Company
      Job types
      2 selected

        Related Jobs

        • IT
        • Software Development
        • Management
        • Architecture
        • Design
        • Communication
        • Technology
        • Practicality
        • Python
        • Software Engineer
        • Senior Software Engineer
        • AI Engineer
        • Data Engineer
        • Solution Architect
        • Full Stack Developer

        show more
        Permanent
        Remove all filters

        Commute time

        Locations

        Popular searches nearby


        London
        429











        See all jobs in Hertfordshire

        Salaries

        Date posted





        Job types

        Permanent
        535





        133 Temporary API jobs in Hertfordshire + 20 miles

        React Developer TypeScript - Hedge Fund

        Client Server
        Victoria, South West London (SW1), SW1H
        £80000 - £95000 per annum + bonus + benefits
        React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript * You are experienced with other web technologies such as HTML, CSS, Web APIs
        React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript * You are experienced with other web technologies such as HTML, CSS, Web APIs
        more
        PREMIUM
        £120,000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent We are partnering with a well-established organisation delivering complex, enterprise-scale technology and integration solutions for large clients across multiple industries. The business works closely with senior executives to design, govern, and deliver integration architectures that enable transformation and long-term commercial value. The Role Our client is seeking an Integration Architect to provide strategic leadership across enterprise integration initiatives. This role operates at executive level, shaping integration strategy, directing large-scale programs, and influencing technology decisions that drive measurable business outcomes. You will act as a trusted advisor to C-suite stakeholders while contributing to commercial growth and capability development.
        £120,000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent We are partnering with a well-established organisation delivering complex, enterprise-scale technology and integration solutions for large clients across multiple industries. The business works closely with senior executives to design, govern, and deliver integration architectures that enable transformation and long-term commercial value. The Role Our client is seeking an Integration Architect to provide strategic leadership across enterprise integration initiatives. This role operates at executive level, shaping integration strategy, directing large-scale programs, and influencing technology decisions that drive measurable business outcomes. You will act as a trusted advisor to C-suite stakeholders while contributing to commercial growth and capability development.
        more
        NEWPREMIUM

        Palantir Consultant

        Staffworx Limited
        Central London (W1)
        excellent package to attract the best
        Palantir Foundry Consultant You'll work as a hands-on Palantir Foundry consultant, helping to design, build and support data and application workflows on the platform. You'll work closely with senior Foundry engineers and architects, contribute to technical decisions, and collaborate directly with business stakeholders as you grow into owning areas end-to-end. Core Responsibilities Foundry Solution Delivery o Data integration (Pipeline Builder/code-based pipelines, connectors, incremental loads). o Ontology modelling (objects, relationships, basic semantics, versioning). o Application layer (Workshop, Code Repositories, OSDK/APIs, Actions, AIP/agentic workflows). * Implement data modelling and transformation patterns under guidance from senior team members.
        Palantir Foundry Consultant You'll work as a hands-on Palantir Foundry consultant, helping to design, build and support data and application workflows on the platform. You'll work closely with senior Foundry engineers and architects, contribute to technical decisions, and collaborate directly with business stakeholders as you grow into owning areas end-to-end. Core Responsibilities Foundry Solution Delivery o Data integration (Pipeline Builder/code-based pipelines, connectors, incremental loads). o Ontology modelling (objects, relationships, basic semantics, versioning). o Application layer (Workshop, Code Repositories, OSDK/APIs, Actions, AIP/agentic workflows). * Implement data modelling and transformation patterns under guidance from senior team members.
        more

        Senior Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Unspecified
        DeFi Remote Up to $250k Plexus has another great opportunity with one of our clients that are a non-custodial crypto trading and data platform built for speed, accuracy, and full user control. They provide a unified base of operations where traders keep custody of their funds, access live market data, execute instantly, and trade even the newest markets with powerful, intuitive tools. they keep there team intentionally small, bringing together only the most exceptional talent in crypto. They are looking for a backend engineer experienced in building high-performance, low-latency microservices in TypeScript. Responsibilities * Backend Development: Build and maintain scalable TypeScript services for trading, analytics, and integrations. * Cross-Team Collaboration: Work with designers, product, and users to align backend solutions with platform needs.
        DeFi Remote Up to $250k Plexus has another great opportunity with one of our clients that are a non-custodial crypto trading and data platform built for speed, accuracy, and full user control. They provide a unified base of operations where traders keep custody of their funds, access live market data, execute instantly, and trade even the newest markets with powerful, intuitive tools. they keep there team intentionally small, bringing together only the most exceptional talent in crypto. They are looking for a backend engineer experienced in building high-performance, low-latency microservices in TypeScript. Responsibilities * Backend Development: Build and maintain scalable TypeScript services for trading, analytics, and integrations. * Cross-Team Collaboration: Work with designers, product, and users to align backend solutions with platform needs.
        more

        Solutions Consultant – Integrations

        ARC IT Recruitment Ltd
        West End, Central London (W1), W1G
        £competitive + Bonus + Excellent Benefits
        Remote £competitive + benefits Talented Solutions Consultant with HR Tech integrations experience is sought by thriving software house. Theyre looking for someone who can take the lead on how their platform connects with other HR systems. This is a standalone role, so youll have real ownership over integrations with ATS platforms, CRMs and other third-party tools. Youll work closely with product, engineering, professional services and customer success teams, acting as the link between what clients need and how the technology delivers it. Key Responsibilities * Taking charge of the integration part of client implementations. Often this will sit within a wider project that might include assessments, video interviewing, reporting tools or virtual assessment centres.
        Remote £competitive + benefits Talented Solutions Consultant with HR Tech integrations experience is sought by thriving software house. Theyre looking for someone who can take the lead on how their platform connects with other HR systems. This is a standalone role, so youll have real ownership over integrations with ATS platforms, CRMs and other third-party tools. Youll work closely with product, engineering, professional services and customer success teams, acting as the link between what clients need and how the technology delivers it. Key Responsibilities * Taking charge of the integration part of client implementations. Often this will sit within a wider project that might include assessments, video interviewing, reporting tools or virtual assessment centres.
        more

        Full Stack Developer

        Loopla
        Euston, North West London (NW1), NW1 2RT
        Competitive
        About Loopla Loopla is a London-based family events marketplace helping parents discover and book activities for their children. Were a small engineering team, moving quickly and building the tools that power both family discovery and organiser growth. Every engineer has real ownership and impact. The Role Were looking for a Senior Full Stack Engineer who enjoys solving hard problems, takes initiative, and cares about building things properly. Youll work across the stack, own major features end to end, and help shape the direction of a growing product. This is a hybrid role: 3 days in our Euston office, 2 days remote. We may be relocating to Stratford in the coming months, and the hybrid pattern would remain the same. Responsibilities * Lead feature planning and turn ideas into well-scoped, buildable work * Build reliable, maintainable frontend and backend systems
        About Loopla Loopla is a London-based family events marketplace helping parents discover and book activities for their children. Were a small engineering team, moving quickly and building the tools that power both family discovery and organiser growth. Every engineer has real ownership and impact. The Role Were looking for a Senior Full Stack Engineer who enjoys solving hard problems, takes initiative, and cares about building things properly. Youll work across the stack, own major features end to end, and help shape the direction of a growing product. This is a hybrid role: 3 days in our Euston office, 2 days remote. We may be relocating to Stratford in the coming months, and the hybrid pattern would remain the same. Responsibilities * Lead feature planning and turn ideas into well-scoped, buildable work * Build reliable, maintainable frontend and backend systems
        more

        Solution Architect

        MFA Talent Services
        City of London, London
        £60,000 – £95,000 + Bonus
        Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £60,000 £95,000 + Bonus This role requires the ability to gain SC Clearance About the Role This role offers the opportunity to operate as an end-to-end Solution Architect on major digital transformation initiatives, working directly with senior business and technology leaders. Youll design and deliver modern, cloud-native, scalable architectures across AWS, Azure and GCP, applying engineering-led thinking and hands-on technical depth to shape high-impact solutions for FTSE 100 clients. Youll act as a trusted technical advisor, defining solution options, guiding engineering teams, ensuring architectural integrity, and supporting clients from early discovery and conceptualisation through to delivery.
        Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £60,000 £95,000 + Bonus This role requires the ability to gain SC Clearance About the Role This role offers the opportunity to operate as an end-to-end Solution Architect on major digital transformation initiatives, working directly with senior business and technology leaders. Youll design and deliver modern, cloud-native, scalable architectures across AWS, Azure and GCP, applying engineering-led thinking and hands-on technical depth to shape high-impact solutions for FTSE 100 clients. Youll act as a trusted technical advisor, defining solution options, guiding engineering teams, ensuring architectural integrity, and supporting clients from early discovery and conceptualisation through to delivery.
        more
        The Football Association (The FA) is making significant investments in our foundational digital capabilities to support the development of new propositions, address business challenges, and provide a platform for future growth. This investment is expanding our digital and technology capabilities as we pursue our ambition to reach more people, grow participation, and better serve existing participants, fans, and attendees. As we transform our digital products and platforms, we are seeking talented and experienced professionals to accelerate the delivery of world-class, direct-to-consumer experiences. We are seeking an experienced QA Lead to drive the testing strategy and delivery for our Commercial Marketing Enablers (CME) programme, supporting The FA's wider digital transformation.
        The Football Association (The FA) is making significant investments in our foundational digital capabilities to support the development of new propositions, address business challenges, and provide a platform for future growth. This investment is expanding our digital and technology capabilities as we pursue our ambition to reach more people, grow participation, and better serve existing participants, fans, and attendees. As we transform our digital products and platforms, we are seeking talented and experienced professionals to accelerate the delivery of world-class, direct-to-consumer experiences. We are seeking an experienced QA Lead to drive the testing strategy and delivery for our Commercial Marketing Enablers (CME) programme, supporting The FA's wider digital transformation.
        more
        NEW

        Tech Lead

        MFA Talent Services
        City of London, London
        £80,000 – £100,000 + Bonus
        Technical Lead Cloud-Native Engineering | Modern Application Development Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £80,000 £100,000 + Bonus This role requires the ability to gain SC Clearance About the Role This is an excellent opportunity for a Technical Lead to guide high-performing Agile engineering teams and deliver modern, cloud-native applications for major clients. You will bring deep hands-on engineering expertise, make pragmatic architectural decisions, and champion best practices that ensure scalable, resilient and secure production systems. You will play a central role in shaping technical direction, embedding DevOps culture, ensuring strong engineering fundamentals, and working closely with stakeholders to translate requirements into high-quality digital products.
        Technical Lead Cloud-Native Engineering | Modern Application Development Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £80,000 £100,000 + Bonus This role requires the ability to gain SC Clearance About the Role This is an excellent opportunity for a Technical Lead to guide high-performing Agile engineering teams and deliver modern, cloud-native applications for major clients. You will bring deep hands-on engineering expertise, make pragmatic architectural decisions, and champion best practices that ensure scalable, resilient and secure production systems. You will play a central role in shaping technical direction, embedding DevOps culture, ensuring strong engineering fundamentals, and working closely with stakeholders to translate requirements into high-quality digital products.
        more

        Senior DeFi Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Up to £175,000 per annum
        DeFi Remote Upto€200k+ Tokens Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience
        DeFi Remote Upto€200k+ Tokens Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience
        more

        Lead .Net Software Developer

        Hireful
        Milton Keynes, Buckinghamshire, MK9
        £65k - £75k base salary + bonus and great benefits
        Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer Salary: £65k - £75k base + Bonus Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more Location: Milton Keynes – Hybrid (2 days a week in office)
        Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer Salary: £65k - £75k base + Bonus Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more Location: Milton Keynes – Hybrid (2 days a week in office)
        more
        FEATURED
        We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
        We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
        more
        We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
        We're seeking an experienced Senior Full Stack Developer to join our clients expanding technology team. In this role, you'll be instrumental in designing, developing, and maintaining high-quality, scalable web applications. You'll work across the full stack, collaborating closely with colleagues to deliver impactful, user-focused solutions. Key Responsibilities * Develop and maintain modern web applications using C# .NET (Core/Framework) and React. * Work with cross-functional teams to define requirements and deliver new features. * Write clean, scalable, and well-tested code. * Diagnose and resolve application issues to ensure optimal performance. You will have - * 3+ years' experience as a Full Stack Developer. * Strong hands-on expertise with C# .NET (Core) and React. * Good understanding of REST APIs, SQL/NoSQL databases, and Git version control.
        more

        Senior Azure Data Engineer

        Young's Employment Services Ltd
        West London (W5)
        circ £70,000 - £80,000 DOE
        Hybrid - Work From Home and West London Circ £70,000 - £80,000 + Range of benefits A well-known and prestigious business is looking to add a Senior Azure Data Engineer to their data team. This is an exciting opportunity for a Data Engineer that's not just technical, but also enjoys directly engaging and collaborating with stakeholders from across business functions such as finance, operations, planning, manufacturing, retail, e-commerce etc. Having nearly completed the process of migrating data from their existing on-prem databases to an Azure Cloud based platform, the Senior Data Engineer will play a key role in helping make best use of the data by gathering and agreeing requirements with the business to build data solutions that align accordingly.
        Hybrid - Work From Home and West London Circ £70,000 - £80,000 + Range of benefits A well-known and prestigious business is looking to add a Senior Azure Data Engineer to their data team. This is an exciting opportunity for a Data Engineer that's not just technical, but also enjoys directly engaging and collaborating with stakeholders from across business functions such as finance, operations, planning, manufacturing, retail, e-commerce etc. Having nearly completed the process of migrating data from their existing on-prem databases to an Azure Cloud based platform, the Senior Data Engineer will play a key role in helping make best use of the data by gathering and agreeing requirements with the business to build data solutions that align accordingly.
        more

        Full Stack Engineer Python TypeScript

        Client Server
        St James, South West London (SW1), SW1A
        £100000 - £120000 per annum + bonus + benefits
        Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.
        Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.
        more
        PREMIUM

        QA Lead

        Certain Advantage
        Lambeth, South East London (SE1), SE1 7NA
        Competitive
        Certain Advantage are hiring for a QA Lead (End-to-End Automation) based in London. This role is on an initial 12-month contract and will be required to be onsite 3 days a week and 2 days remote. We are seeking a highly experienced QA Lead to take ownership of end-to-end testing across a dynamic portfolio of programs. This is a leadership role requiring strong technical expertise, strategic thinking, and the ability to guide a high-performing team toward delivering top-quality testing outcomes. Key Responsibilities * Own end-to-end testing deliverables across the portfolio, ensuring high-quality outcomes and effective demand management. * Build and maintain a strong QA team by identifying and onboarding capable talent. * Ensure business continuity and consistently deliver top-tier testing coverage for all programs.
        Certain Advantage are hiring for a QA Lead (End-to-End Automation) based in London. This role is on an initial 12-month contract and will be required to be onsite 3 days a week and 2 days remote. We are seeking a highly experienced QA Lead to take ownership of end-to-end testing across a dynamic portfolio of programs. This is a leadership role requiring strong technical expertise, strategic thinking, and the ability to guide a high-performing team toward delivering top-quality testing outcomes. Key Responsibilities * Own end-to-end testing deliverables across the portfolio, ensuring high-quality outcomes and effective demand management. * Build and maintain a strong QA team by identifying and onboarding capable talent. * Ensure business continuity and consistently deliver top-tier testing coverage for all programs.
        more

        Applications Support Analyst / Engineer

        Kudos Partners
        Datchet Common, Slough (SL3), SL3
        £75,000 per annum plus 12% bonus - generous benefits package
        Location:West of London | Hybrid (1 day in office) Salary:Competitive + Benefits + Flexible Working Why Join? * Hybrid working only 1 day per week in the office * Established FinTech company with a collaborative, supportive culture * Key role in supporting high-profile web and mobileapplications(including BigCommerce) * Exposure to Azure, APIs, D365, and cutting-edge digital solutions Were seeking anexperiencedApplicationsSupport Analyst/Developerto join our growing FinTech team. Thisbusiness-criticalrole will lead the support for a new digital platform, ensuring smooth operation and exceptional service for internal stakeholders. * Deliver 2nd and 3rd line support for digitalapplications, resolving issues within SLAs * Minimise downtime and drive continuous improvement across web/mobile platforms
        Location:West of London | Hybrid (1 day in office) Salary:Competitive + Benefits + Flexible Working Why Join? * Hybrid working only 1 day per week in the office * Established FinTech company with a collaborative, supportive culture * Key role in supporting high-profile web and mobileapplications(including BigCommerce) * Exposure to Azure, APIs, D365, and cutting-edge digital solutions Were seeking anexperiencedApplicationsSupport Analyst/Developerto join our growing FinTech team. Thisbusiness-criticalrole will lead the support for a new digital platform, ensuring smooth operation and exceptional service for internal stakeholders. * Deliver 2nd and 3rd line support for digitalapplications, resolving issues within SLAs * Minimise downtime and drive continuous improvement across web/mobile platforms
        more

        Software Architect

        Bilge Adam Technologies UK Ltd
        Central London (WC1)
        From £75,000 to £90,000 per annum
        Job description Job Role: Software/Solution Architect We are looking to hire an experienced Software Architect. What Youll Be Doing Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For
        Job description Job Role: Software/Solution Architect We are looking to hire an experienced Software Architect. What Youll Be Doing Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For
        more
        Senior/Lead Hands on Full Stack Developer - React / Python London | Hybrid (4days in the office and 1 day from home) £110,000+ 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.
        Senior/Lead Hands on Full Stack Developer - React / Python London | Hybrid (4days in the office and 1 day from home) £110,000+ 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.
        more

        QA - Lead Automation Architect

        Anson Mccade
        North West London (NW1)
        £85,000 - £110,000 Annual
        ££85,000 - £110,000 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Role: QA - Lead Automation Architect Work Type & Location: Hybrid - 2 days on-site in London Role Type: Permanent Salary: Up to £110,000 DOE Our client is a global powerhouse in digital transformation, delivering high-impact projects across consulting, cloud, engineering, and infrastructure. They are seeking a QA - Lead Automation Architect to take charge of their automation strategy, leading a team of forward-thinking engineers to deliver world-class solutions for complex enterprise systems. This is more than a hands-on role - you'll be a critical driver of quality engineering culture, pushing innovation, shaping automation frameworks from the ground up, and mentoring others to do the same. * Lead and grow a team of talented QA and automation engineers
        ££85,000 - £110,000 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Role: QA - Lead Automation Architect Work Type & Location: Hybrid - 2 days on-site in London Role Type: Permanent Salary: Up to £110,000 DOE Our client is a global powerhouse in digital transformation, delivering high-impact projects across consulting, cloud, engineering, and infrastructure. They are seeking a QA - Lead Automation Architect to take charge of their automation strategy, leading a team of forward-thinking engineers to deliver world-class solutions for complex enterprise systems. This is more than a hands-on role - you'll be a critical driver of quality engineering culture, pushing innovation, shaping automation frameworks from the ground up, and mentoring others to do the same. * Lead and grow a team of talented QA and automation engineers
        more
        PREMIUM

        Software Engineering Manager - Unified Client Experience (UCX)

        Hargreaves Lansdown
        City of London (EC1)
        £90000 - £115000 per annum + Generous bonus, pension, PMI and more
        HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform.
        HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform.
        more
        FEATURED
        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
        more

        Penetration Testing Team Leader - Growing Cybersecurity Firm

        Recruitment Revolution
        Covent Garden, Central London (WC2), WC1A
        Up to £95,000 DOE Plus Benefits
        Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team Leader, you’ll play a pivotal role in shaping cutting-edge testing services, developing talented testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this is a role designed for a driven, highly skilled Team Lead who thrives on technical depth, leadership and solving complex security challenges. Penetration Testing Team Leader
        Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team Leader, you’ll play a pivotal role in shaping cutting-edge testing services, developing talented testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this is a role designed for a driven, highly skilled Team Lead who thrives on technical depth, leadership and solving complex security challenges. Penetration Testing Team Leader
        more

        Seismic Developer

        Rathbones Group Plc
        The City, City of London (EC2), EC2V 7QN
        To define
        At Rathbones, we help people invest their money well, so they can live well. That means more than financial returns its about helping people feel confident in their decisions and supported in their future. We dont just manage money, we guide people through lifes big moments, helping them stay on track and focus on what matters most. Were proud to be one of the UKs leading wealth managers, with over £109bn* in assets under management and 20+ offices across the UK and Channel Islands. Were a FTSE 250 company with national reach and a local feel and were growing. *As of June 2025 Role Title: Seismic Developer Division: Brand & Digital Services Location: London Contract: Permanent Working pattern: Hybrid About the Role
        At Rathbones, we help people invest their money well, so they can live well. That means more than financial returns its about helping people feel confident in their decisions and supported in their future. We dont just manage money, we guide people through lifes big moments, helping them stay on track and focus on what matters most. Were proud to be one of the UKs leading wealth managers, with over £109bn* in assets under management and 20+ offices across the UK and Channel Islands. Were a FTSE 250 company with national reach and a local feel and were growing. *As of June 2025 Role Title: Seismic Developer Division: Brand & Digital Services Location: London Contract: Permanent Working pattern: Hybrid About the Role
        more
        FEATURED

        Senior Automation QA - Remote

        Exposed Solutions
        Central London (W1)
        From £40,000 to £45,000 per annum
        SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI)
        SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI)
        more

        Related Jobs


        show more

        What is the average salary for API in Hertfordshire?

        Average salary per year
        £62,499

        The average salary for a API in Hertfordshire is £62,499. API in Hertfordshire salaries range from £47,499 to £67,499.

        Frequently Asked Questions

        How many temporary API jobs are there in Hertfordshire?
        There are 133 temporary API jobs within 20 miles of Hertfordshire available on Jobsite right now.

        Where in Hertfordshire are these temporary jobs?
        You can find temporary jobs in Hoddesdon, Stevenage, Borehamwood.

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