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27 Permanent API jobs in South East + 20 miles
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Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
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Senior Software Engineer for Southampton based organisation
Senior Software Engineer for Southampton based organisation
Claremont Consulting
SO14, Southampton
£55000.00 - £66000.00 per annum + Many benefits, superb pension
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Senior Software Engineer for Southampton based organisation
Senior Software Engineer for Southampton based organisation
Claremont Consulting
SO14, Southampton
£55000.00 - £66000.00 per annum + Many benefits, superb pension
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
Technical knowledge and experience in producing resilient services to provide API services to front end systems.
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Python, Flask ,Azure, MySQL, API, Django, FastAPI
Python, Flask ,Azure, MySQL, API, Django, FastAPI
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Junior / Mid Level Full Stack Developer - Location: Fareham, Hampshire (on-site) Salary: Up to £55,000 (some flexibility for strong candidates) Start Date: ASAP - Type: Permanent, Full-Time - About The Company - We're working with an exciting, mission-driven startup that's building cutting-edge tech for pet owners across North America, Europe, and Australia. Backed by strong investment and led by a seasoned team, they're scaling fast and looking for talented developers to join their journey. Their culture is collaborative, transparent, and growth-focused-perfect for someone early in their career who's looking to make a real impact and learn in a supportive environment. The Role - This is a fantastic opportunity for a Junior Full Stack Developer (or early mid-level) to join a growing team and play a hands-on role in shaping a Django-powered web and desktop application.
Junior / Mid Level Full Stack Developer - Location: Fareham, Hampshire (on-site) Salary: Up to £55,000 (some flexibility for strong candidates) Start Date: ASAP - Type: Permanent, Full-Time - About The Company - We're working with an exciting, mission-driven startup that's building cutting-edge tech for pet owners across North America, Europe, and Australia. Backed by strong investment and led by a seasoned team, they're scaling fast and looking for talented developers to join their journey. Their culture is collaborative, transparent, and growth-focused-perfect for someone early in their career who's looking to make a real impact and learn in a supportive environment. The Role - This is a fantastic opportunity for a Junior Full Stack Developer (or early mid-level) to join a growing team and play a hands-on role in shaping a Django-powered web and desktop application.
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About the Company - You'll be joining a global leader in real estate services and technology solutions. Known for combining deep market expertise with cutting-edge innovation, this business is committed to modernising how property and investment decisions are made. You'll be part of a collaborative, forward-thinking environment that values creativity, accountability, and growth-where your contributions will directly shape the future of real estate technology. Role Responsibilities * Architect, build, and optimise scalable ETL pipelines for diverse datasets. * Onboard, document, and curate external datasets for internal use. * Perform data validation, forensic analysis, and troubleshooting. * Deliver high-quality, maintainable Python code and participate in peer reviews. * Collaborate with stakeholders and researchers to support analytics and product development.
About the Company - You'll be joining a global leader in real estate services and technology solutions. Known for combining deep market expertise with cutting-edge innovation, this business is committed to modernising how property and investment decisions are made. You'll be part of a collaborative, forward-thinking environment that values creativity, accountability, and growth-where your contributions will directly shape the future of real estate technology. Role Responsibilities * Architect, build, and optimise scalable ETL pipelines for diverse datasets. * Onboard, document, and curate external datasets for internal use. * Perform data validation, forensic analysis, and troubleshooting. * Deliver high-quality, maintainable Python code and participate in peer reviews. * Collaborate with stakeholders and researchers to support analytics and product development.
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Mobile Developer (Kotlin) - Essex - Do you dream in code and get a little too excited about clean architecture? If Kotlin is your happy place, we'd love to hear from you. * Building slick, intuitive apps that make users think 'wow, that just works.' * Designing and implementing new features with Kotlin and Android best practices. * Collaborating with designers, PMs, and fellow developers to turn ideas into apps people actually love to use. * Squashing bugs before they bug anyone else. * Keeping up to date with the latest Android & Kotlin Multiplatform (KMP) trends and bringing those fresh ideas to the table. * Solid Kotlin skills and experience building Android apps. * Familiarity with Android frameworks, Jetpack Compose, and RESTful APIs. * Bonus points if you've dipped into Kotlin Multiplatform (KMP). * A good handle on Git (because version control saves lives).
Mobile Developer (Kotlin) - Essex - Do you dream in code and get a little too excited about clean architecture? If Kotlin is your happy place, we'd love to hear from you. * Building slick, intuitive apps that make users think 'wow, that just works.' * Designing and implementing new features with Kotlin and Android best practices. * Collaborating with designers, PMs, and fellow developers to turn ideas into apps people actually love to use. * Squashing bugs before they bug anyone else. * Keeping up to date with the latest Android & Kotlin Multiplatform (KMP) trends and bringing those fresh ideas to the table. * Solid Kotlin skills and experience building Android apps. * Familiarity with Android frameworks, Jetpack Compose, and RESTful APIs. * Bonus points if you've dipped into Kotlin Multiplatform (KMP). * A good handle on Git (because version control saves lives).
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Head of Engineering (Hands on)- London Hybrid
Head of Engineering (Hands on)- London Hybrid
Develop
London
£90000 - £120000 per annum + + benefits & stocks
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
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Solid understanding of backend architecture, distributed systems and API design.
Solid understanding of backend architecture, distributed systems and API design.
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Familiarity with JSON and API usage.
Familiarity with JSON and API usage.
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
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Good understanding of API/SQL/databases
Good understanding of API/SQL/databases
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Bibby Financial Services have an exciting opportunity available for a reliable Senior Databricks Engineer to join our team. You will join us on a full time, permanent basisand in return, you will receive a competitive salary of £60,000 - £70,000 per annum. As our Senior Databricks Engineer, you will operate within an Agile delivery environment, working closely with the Data Product Manager and Data Architect to ensure your team maintains a pipeline of delivery against the Backlog; providing vital insight from our wide-ranging dataset to support executive and operational decision making that will underpin sustained growth of BFS business units domestically and internationally. You will have an active leadership role in determining and developing the shape of your teams solution delivery against business requirements, as well as helping to inform and input into the wide
Bibby Financial Services have an exciting opportunity available for a reliable Senior Databricks Engineer to join our team. You will join us on a full time, permanent basisand in return, you will receive a competitive salary of £60,000 - £70,000 per annum. As our Senior Databricks Engineer, you will operate within an Agile delivery environment, working closely with the Data Product Manager and Data Architect to ensure your team maintains a pipeline of delivery against the Backlog; providing vital insight from our wide-ranging dataset to support executive and operational decision making that will underpin sustained growth of BFS business units domestically and internationally. You will have an active leadership role in determining and developing the shape of your teams solution delivery against business requirements, as well as helping to inform and input into the wide
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You will be the responsible for electrical systems compliance across all of Vattenfall Heat UKs electrical infrastructure. As the subject matter expect on electrical systems, you shall be the Lead Authorising Engineer for the UK business as well as advising and supporting projects on electrical equipment, design, and commissioning. You will be responsible for ensuring that permitted activities on all of Vattenfalls electrical apparatus is following suitable Safe systems of Work that comply with legislation and ensure safety from the system, and its application. You will be the custodian and co-author to the companies electrical procedures and Safe Systems of Work and that the operators are sufficiently trained and competent to undertake the work. General Job Duties * Working closely with the Director Asset Management, Heads of Operations & Delivery, and Operations ...
You will be the responsible for electrical systems compliance across all of Vattenfall Heat UKs electrical infrastructure. As the subject matter expect on electrical systems, you shall be the Lead Authorising Engineer for the UK business as well as advising and supporting projects on electrical equipment, design, and commissioning. You will be responsible for ensuring that permitted activities on all of Vattenfalls electrical apparatus is following suitable Safe systems of Work that comply with legislation and ensure safety from the system, and its application. You will be the custodian and co-author to the companies electrical procedures and Safe Systems of Work and that the operators are sufficiently trained and competent to undertake the work. General Job Duties * Working closely with the Director Asset Management, Heads of Operations & Delivery, and Operations ...
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At Burberry, we believe creativity opens spaces. Our purpose is to unlock the power of imagination to push boundaries and open new possibilities for our people, our customers and our communities. This is the core belief that has guided Burberry since it was founded in 1856 and is central to how we operate as a company today. We aim to provide an environment for creative minds from different backgrounds to thrive, bringing a wide range of skills and experiences to everything we do. As a purposeful, values-driven brand, we are committed to being a force for good in the world as well, creating the next generation of sustainable luxury for customers, driving industry change and championing our communities. The Principal Engineer will act as a technical thought partner and knowledge anchor for platform engineering across our Digital ecosystem.
At Burberry, we believe creativity opens spaces. Our purpose is to unlock the power of imagination to push boundaries and open new possibilities for our people, our customers and our communities. This is the core belief that has guided Burberry since it was founded in 1856 and is central to how we operate as a company today. We aim to provide an environment for creative minds from different backgrounds to thrive, bringing a wide range of skills and experiences to everything we do. As a purposeful, values-driven brand, we are committed to being a force for good in the world as well, creating the next generation of sustainable luxury for customers, driving industry change and championing our communities. The Principal Engineer will act as a technical thought partner and knowledge anchor for platform engineering across our Digital ecosystem.
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Job Description - Job Type: Perm - Location: London. Flexible working: All our roles are open to part-time, job-share and other types of flexibility. We will discuss what is important to you and balancing this with business requirements during the recruitment process. You can read more about Phoenix Flex here. Salary and benefits: Up tp £100,000 plus bonus 16% - 32%, private medical cover, 38 days annual leave, excellent pension, 12x salary life assurance, career breaks, income protection, 3x volunteering days and much more - Closing Date: 15th September - Were Phoenix Group, were a long-term savings and retirement business. We offer a range of products across our market-leading brands, Standard Life, SunLife, Phoenix Life and ReAssure. Around 1 in 5 people in the UK has a pension with us. Were a FTSE 100 organisation that is tackling key issues such as transitioning
Job Description - Job Type: Perm - Location: London. Flexible working: All our roles are open to part-time, job-share and other types of flexibility. We will discuss what is important to you and balancing this with business requirements during the recruitment process. You can read more about Phoenix Flex here. Salary and benefits: Up tp £100,000 plus bonus 16% - 32%, private medical cover, 38 days annual leave, excellent pension, 12x salary life assurance, career breaks, income protection, 3x volunteering days and much more - Closing Date: 15th September - Were Phoenix Group, were a long-term savings and retirement business. We offer a range of products across our market-leading brands, Standard Life, SunLife, Phoenix Life and ReAssure. Around 1 in 5 people in the UK has a pension with us. Were a FTSE 100 organisation that is tackling key issues such as transitioning
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£45,000 - £60,000 DOE - Hybrid - 3 days a week in St Albans - Looking for your next step in ERP, automation, and process improvement? This growing business is on a digital transformation journey and needs a hands-on Business Systems Developer to help make it happen. This role is all about owning and optimising Microsoft Dynamics 365 Business Central, cutting down manual work, driving automation, and making life easier across finance, operations, and reporting. There's plenty of room to grow here too, whether that's developing into a senior specialist role or stepping into leadership as the systems function expands. What you'll be doing * Owning and supporting Dynamics 365 Business Central (config, AL extensions, security, troubleshooting). * Spotting opportunities for automation and process improvement (think Power Automate, APIs, integrations).
£45,000 - £60,000 DOE - Hybrid - 3 days a week in St Albans - Looking for your next step in ERP, automation, and process improvement? This growing business is on a digital transformation journey and needs a hands-on Business Systems Developer to help make it happen. This role is all about owning and optimising Microsoft Dynamics 365 Business Central, cutting down manual work, driving automation, and making life easier across finance, operations, and reporting. There's plenty of room to grow here too, whether that's developing into a senior specialist role or stepping into leadership as the systems function expands. What you'll be doing * Owning and supporting Dynamics 365 Business Central (config, AL extensions, security, troubleshooting). * Spotting opportunities for automation and process improvement (think Power Automate, APIs, integrations).
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Junior or Mid Level Developer (Flutter)- Fareham or Hybrid- up to £55k + Benefits - Our client a tech incubator who are revolutionising technology in their space are looking to hire a Junior Flutter Developer to join their team to help them deliver some exciting new products in 2025. The team are still fairly early in their journey and currently a small team of 5 but they will look to double the size of the team next year. The business are part of a much larger technology solutions brand that have been hugely successful. I am looking for someone either at Junior/Graduate level or with a few years of experience * Some experience building mobile apps with Flutter and Dart * Know how to deploy apps to iOS and Android (projects from uni or personal work are fine) * Can build clean, responsive UIs using Flutter widgets
Junior or Mid Level Developer (Flutter)- Fareham or Hybrid- up to £55k + Benefits - Our client a tech incubator who are revolutionising technology in their space are looking to hire a Junior Flutter Developer to join their team to help them deliver some exciting new products in 2025. The team are still fairly early in their journey and currently a small team of 5 but they will look to double the size of the team next year. The business are part of a much larger technology solutions brand that have been hugely successful. I am looking for someone either at Junior/Graduate level or with a few years of experience * Some experience building mobile apps with Flutter and Dart * Know how to deploy apps to iOS and Android (projects from uni or personal work are fine) * Can build clean, responsive UIs using Flutter widgets
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About this role - Business Unit Overview - BlackRock Global Markets and Index Investments (BGM) brings together BlackRocks Index Investments, Cash Management, Global Trading, ETF Markets, Securities Lending, and Financing & Financial Resource Management businesses. * World class talent, operating at the intersection of investment insight, markets expertise, risk management and process design * Technology at the heart of our processes, with in-business tech teams that create cutting-edge IP, providing an advantage in quality, scale, and risk control * A focus on transforming markets, driving and advocating for more accessible, resilient, and transparent markets to deliver more choice and lower costs for investors - Your Role and Impact - We have a superb opportunity for a Portfolio Manager to join our London Index Equity Portfolio Management team.
About this role - Business Unit Overview - BlackRock Global Markets and Index Investments (BGM) brings together BlackRocks Index Investments, Cash Management, Global Trading, ETF Markets, Securities Lending, and Financing & Financial Resource Management businesses. * World class talent, operating at the intersection of investment insight, markets expertise, risk management and process design * Technology at the heart of our processes, with in-business tech teams that create cutting-edge IP, providing an advantage in quality, scale, and risk control * A focus on transforming markets, driving and advocating for more accessible, resilient, and transparent markets to deliver more choice and lower costs for investors - Your Role and Impact - We have a superb opportunity for a Portfolio Manager to join our London Index Equity Portfolio Management team.
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LCH Ltd is an international multi-asset class central counterparty clearing house (CCP), part of the London Stock Exchange Group. LCH Ltd serves a broad range of exchanges and over-the-counter trading platforms providing critical risk management services. It has a unique membership model and its customers span the globe and include major financial groups (including the majority of the major investment banks), broker-dealers and specialist commodity houses and a wide range of buy-side and real-money firms including major asset managers and large hedge funds. This role provides an opportunity to work on one of the most critical finance technology functions in the world. The LCH CCP is systematically important to the worlds financial markets which requires technology that has to be very resilient and with strong controls.
LCH Ltd is an international multi-asset class central counterparty clearing house (CCP), part of the London Stock Exchange Group. LCH Ltd serves a broad range of exchanges and over-the-counter trading platforms providing critical risk management services. It has a unique membership model and its customers span the globe and include major financial groups (including the majority of the major investment banks), broker-dealers and specialist commodity houses and a wide range of buy-side and real-money firms including major asset managers and large hedge funds. This role provides an opportunity to work on one of the most critical finance technology functions in the world. The LCH CCP is systematically important to the worlds financial markets which requires technology that has to be very resilient and with strong controls.
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Senior Security Engineer (PurView, Sentinel, Defender)
Senior Security Engineer (PurView, Sentinel, Defender)
Invitise Ltd
WC1A, Central London
Up to £70,000 per annum + Excellent Benefits
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Experience with API design and development for both internal and external use cases
Experience with API design and development for both internal and external use cases
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Full Stack Lead Engineer
Full Stack Lead Engineer
Hunter Selection
Soho, W1
£60000 - £85000 per annum + health insurance life insurance
Restful API development - React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code
Restful API development - React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code
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