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        12 API jobs in Havant + 20 miles

        Senior AI/ML Engineer

        Quilter
        Southampton, Hampshire
        Competitive
        About the Business - Quilter plc is a leading wealth management business, helping to enable brighter financial futures for every generation. Quilter oversees £126.3 billion in customer investments (as of August 2025). It has an adviser and customer offering spanning financial advice, investment platforms, multi-asset investment solutions, and discretionary fund management. The business is comprised of two segments: Affluent and High Net Worth. Affluent encompasses the financial planning business, Quilter Financial Planning, the Quilter Investment Platform and Quilter Investors, the multi-asset investment solutions business. High Net Worth includes the discretionary fund management business, Quilter Cheviot, together with Quilter Cheviot Financial Planning offering a highly personalised service to private clients, charities, trustees, and professional partners.
        About the Business - Quilter plc is a leading wealth management business, helping to enable brighter financial futures for every generation. Quilter oversees £126.3 billion in customer investments (as of August 2025). It has an adviser and customer offering spanning financial advice, investment platforms, multi-asset investment solutions, and discretionary fund management. The business is comprised of two segments: Affluent and High Net Worth. Affluent encompasses the financial planning business, Quilter Financial Planning, the Quilter Investment Platform and Quilter Investors, the multi-asset investment solutions business. High Net Worth includes the discretionary fund management business, Quilter Cheviot, together with Quilter Cheviot Financial Planning offering a highly personalised service to private clients, charities, trustees, and professional partners.
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        NEW

        Mid Level Software Developer

        Spectrum It Recruitment Limited
        SO14, Southampton
        Up to £53000.00 per annum + 25 days holiday,
        Build next generation solutions for the eCommerce and logistics sector as Mid Level Developer. You'll be working on a greenfield project using modern cloud technologies, developing scalable, high-performance systems that support complex operational processes across multiple regions. Software Developer - Location: Southampton (Hybrid - 3 days per week in office) Salary: £53,000, + benefits - Type: Permanent, Full-time - The role is primarily backend-focused, though there's flexibility to gain frontend exposure for those interested in broadening their technical skillset. You'll work closely with product owners, fellow developers, and the CTO, contributing to design discussions, architecture planning, and implementation of robust, production-ready code. Key Responsibilities * Write clean, well-documented, and tested code across backend and full-stack systems.
        Build next generation solutions for the eCommerce and logistics sector as Mid Level Developer. You'll be working on a greenfield project using modern cloud technologies, developing scalable, high-performance systems that support complex operational processes across multiple regions. Software Developer - Location: Southampton (Hybrid - 3 days per week in office) Salary: £53,000, + benefits - Type: Permanent, Full-time - The role is primarily backend-focused, though there's flexibility to gain frontend exposure for those interested in broadening their technical skillset. You'll work closely with product owners, fellow developers, and the CTO, contributing to design discussions, architecture planning, and implementation of robust, production-ready code. Key Responsibilities * Write clean, well-documented, and tested code across backend and full-stack systems.
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        NEW

        Senior Software Engineer Delphi

        Spectrum It Recruitment Limited
        SO14, Southampton
        £50000 - £56000 per annum + 15% Bonus
        Are you an experienced Senior Software Engineer with strong Delphi expertise? Join a forward-thinking technology business, working on a diverse range of bespoke applications, APIs, and databases that underpin both customer-facing products and internal systems. Location: Hybrid (office in Southampton, Hampshire) Salary: Circa £55,000 - £56,000 + up to 15% discretionary bonus - Benefits: Bonus scheme, pension, healthcare, EV car scheme, volunteering day, career progression & more - The Role - As a Senior Software Engineer, you'll be part of a collaborative Agile product team, responsible for designing, developing, and maintaining innovative software solutions. * Write clean, efficient, and secure code in Delphi and C#. * Support the development and integration of legacy and modern platforms. * Contribute to CRM product development, APIs, and databases.
        Are you an experienced Senior Software Engineer with strong Delphi expertise? Join a forward-thinking technology business, working on a diverse range of bespoke applications, APIs, and databases that underpin both customer-facing products and internal systems. Location: Hybrid (office in Southampton, Hampshire) Salary: Circa £55,000 - £56,000 + up to 15% discretionary bonus - Benefits: Bonus scheme, pension, healthcare, EV car scheme, volunteering day, career progression & more - The Role - As a Senior Software Engineer, you'll be part of a collaborative Agile product team, responsible for designing, developing, and maintaining innovative software solutions. * Write clean, efficient, and secure code in Delphi and C#. * Support the development and integration of legacy and modern platforms. * Contribute to CRM product development, APIs, and databases.
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        NEW

        Software Engineer C#

        Leidos Innovations UK Limited
        Whiteley, PO15 7AA
        From £45,000 to £65,000 per annum Excellent benefits
        Software Engineer - Join our UK Team who are committed to a Mission! At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers success. We empower our teams in the UK to address some of the most complex problems in defence, government, safety and security, and transportation. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Leidos heritage companies pioneered the development of air traffic control systems in the United States more than 50 years ago. Today our systems handle 75 per cent of the air traffic in the U.S. and approximately 60 per cent of the worlds air traffic. When it comes to air traffic safety and efficiency, our proven track record and industry-leading in
        Software Engineer - Join our UK Team who are committed to a Mission! At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers success. We empower our teams in the UK to address some of the most complex problems in defence, government, safety and security, and transportation. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Leidos heritage companies pioneered the development of air traffic control systems in the United States more than 50 years ago. Today our systems handle 75 per cent of the air traffic in the U.S. and approximately 60 per cent of the worlds air traffic. When it comes to air traffic safety and efficiency, our proven track record and industry-leading in
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        NEWFEATURED

        Fullstack Developer

        Kiota Recruitment
        SO53, Eastleigh, SO53 3ZL
        50k/year - 60k/year
        Chandlers Ford £50,000 £60,000 + Bonus + Benefits - We are working with a well-established engineering group seeking a Fullstack Developer to play a key role in designing, building, and maintaining scalable, secure software solutions that underpin operational and customer platforms across the business. This is a senior hands-on position, contributing across both frontend and backend systems, developing customer-facing portals, APIs, and IoT integrations. The role combines technical depth with collaboration, guiding junior developers and influencing the direction of software architecture and delivery standards across the group. Key Duties & Responsibilities * Lead the design, development, and deployment of scalable web applications across frontend (ReactJS, React Native) and backend (.NET, Azure Functions, APIs)
        Chandlers Ford £50,000 £60,000 + Bonus + Benefits - We are working with a well-established engineering group seeking a Fullstack Developer to play a key role in designing, building, and maintaining scalable, secure software solutions that underpin operational and customer platforms across the business. This is a senior hands-on position, contributing across both frontend and backend systems, developing customer-facing portals, APIs, and IoT integrations. The role combines technical depth with collaboration, guiding junior developers and influencing the direction of software architecture and delivery standards across the group. Key Duties & Responsibilities * Lead the design, development, and deployment of scalable web applications across frontend (ReactJS, React Native) and backend (.NET, Azure Functions, APIs)
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        NEW
        Chichester / Fernhurst (Hybrid: 1 day WFH) | Up to £60k DOE - Liberty Recruitment Group is proud to partner with our luxury manufacturing client in their search for a Group Business Central Analyst. This newly created role offers the chance to take full ownership of the Dynamics 365 Business Central system across multiple entities. Youll play a key role in consolidating three separate BC instances, improving system architecture, reducing reliance on third-party extensions, and enhancing automation, integration, and reporting. * Develop and support BC functionality using AL coding, APIs, and Power Platform tools * Lead the consolidation of multiple BC systems into one streamlined solution * Collaborate with internal teams to automate processes and reduce manual work * Manage RBAC and enhance system security * Upskill users and act as the in-house BC expert
        Chichester / Fernhurst (Hybrid: 1 day WFH) | Up to £60k DOE - Liberty Recruitment Group is proud to partner with our luxury manufacturing client in their search for a Group Business Central Analyst. This newly created role offers the chance to take full ownership of the Dynamics 365 Business Central system across multiple entities. Youll play a key role in consolidating three separate BC instances, improving system architecture, reducing reliance on third-party extensions, and enhancing automation, integration, and reporting. * Develop and support BC functionality using AL coding, APIs, and Power Platform tools * Lead the consolidation of multiple BC systems into one streamlined solution * Collaborate with internal teams to automate processes and reduce manual work * Manage RBAC and enhance system security * Upskill users and act as the in-house BC expert
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        Are you an Engineer with a background in C++? Are you a Software Engineer looking for a new challenge or to join global multi billion dollar company? If so I'd like to speak with you! An exciting opportunity has arisen for a Software Developer - C++ based in Isle of Wight to join a market leading technology organisation. Due to continued growth they are seeking a Software Developer - C++ in their Isle of Wight office to be responsible for research, design, implementation and testing of software products and solutions. The Software Developer C++ will directly report to the Software Engineer Manager. * Develop easy-to-use web applications * Control automated testing, and manage their deployments * Collaborate with front-end and back-end teams to ensure front-end design integrate with the back-end systems * Writing front-end code * Rewrite front-end web pages
        Are you an Engineer with a background in C++? Are you a Software Engineer looking for a new challenge or to join global multi billion dollar company? If so I'd like to speak with you! An exciting opportunity has arisen for a Software Developer - C++ based in Isle of Wight to join a market leading technology organisation. Due to continued growth they are seeking a Software Developer - C++ in their Isle of Wight office to be responsible for research, design, implementation and testing of software products and solutions. The Software Developer C++ will directly report to the Software Engineer Manager. * Develop easy-to-use web applications * Control automated testing, and manage their deployments * Collaborate with front-end and back-end teams to ensure front-end design integrate with the back-end systems * Writing front-end code * Rewrite front-end web pages
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        FEATURED
        Role: API Integration Engineer - We are seeking a highly skilled API Integration Engineer to join our technology team. * Design, build, and maintain API integrations for telecom OSS/BSS systems, Openreach APIs, supplier platforms, and enterprise applications. * Manage API version upgrades and partner change notifications. * Apply robust fault handling, retry logic, and back-off strategies for resilient API operations. * Design and maintain CI/CD pipelines using GitLab, Azure DevOps, and Jenkins for API and data workflow deployments. * Work closely with the Chief Enterprise & Security Officer and enterprise architects to co-develop a five-year, API-first roadmap for intelligent, context-aware systems. * Provide technical leadership and guidance on mode
        Role: API Integration Engineer - We are seeking a highly skilled API Integration Engineer to join our technology team. * Design, build, and maintain API integrations for telecom OSS/BSS systems, Openreach APIs, supplier platforms, and enterprise applications. * Manage API version upgrades and partner change notifications. * Apply robust fault handling, retry logic, and back-off strategies for resilient API operations. * Design and maintain CI/CD pipelines using GitLab, Azure DevOps, and Jenkins for API and data workflow deployments. * Work closely with the Chief Enterprise & Security Officer and enterprise architects to co-develop a five-year, API-first roadmap for intelligent, context-aware systems. * Provide technical leadership and guidance on mode
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        569 exact matches jobs are outside your preferred location

        Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
        Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
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        Development Team Lead (PHP8, API's, MySQL) Experience building RESTful API's and working with MySQL is essential, and desirable skills include GCP Cloud, RabbitMQ, NoSQL and TDD/Microservices exposure.
        Development Team Lead (PHP8, API's, MySQL) Experience building RESTful API's and working with MySQL is essential, and desirable skills include GCP Cloud, RabbitMQ, NoSQL and TDD/Microservices exposure.
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        NEW
        Youll play a key role in running and evolving the banks Internal API Gateway platform a central service enabling secure, efficient, and scalable connectivity across the enterprise. * Act as a technical ambassador for our Internal API Gateway platform. * Join a small global SRE team managing the reliability and performance of the API platform. * Experience with Tyk API Gateway or similar API management platforms. * Work on a large-scale API ecosystem thats mission-critical to digital transformation.
        Youll play a key role in running and evolving the banks Internal API Gateway platform a central service enabling secure, efficient, and scalable connectivity across the enterprise. * Act as a technical ambassador for our Internal API Gateway platform. * Join a small global SRE team managing the reliability and performance of the API platform. * Experience with Tyk API Gateway or similar API management platforms. * Work on a large-scale API ecosystem thats mission-critical to digital transformation.
        more
        We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
        We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients' recruitment team and provide professional interim and temporary resources. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model.
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        NEWFEATURED
        Strong expertise in MuleSoft Anypoint Platform (API Manager, Runtime, Exchange, CI/CD integration). o Proven experience in API-led integration design and implementation across hybrid and multi-cloud environments.
        Strong expertise in MuleSoft Anypoint Platform (API Manager, Runtime, Exchange, CI/CD integration). o Proven experience in API-led integration design and implementation across hybrid and multi-cloud environments.
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        Job Description - UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes - RELOCATION ASSISTANCE: Relocation assistance may be available - CLEARANCE TYPE: UK-Highest Level of Government Clearance - TRAVEL: Yes, 10% of the Time - Salary: £77,400 - £116,000 - Define Possible at Northrop Grumman UK - At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible. This mind-set goes beyond our customer solutions; its the foundation for your career development and the impact we have within the community. So, whats your possible? This is more than just a job; its a mission. We are seeking an experienced Elasticsearch Platforms Engineer to join our Data Platforms Infrastructure team. This role is pivotal in supporting and maintaining our Elastic Cloud Enterprise (ECE) environment, designin
        Job Description - UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes - RELOCATION ASSISTANCE: Relocation assistance may be available - CLEARANCE TYPE: UK-Highest Level of Government Clearance - TRAVEL: Yes, 10% of the Time - Salary: £77,400 - £116,000 - Define Possible at Northrop Grumman UK - At Northrop Grumman UK, our mission is to solve the most complex challenges by shaping the technology and solutions of tomorrow. We call it Defining Possible. This mind-set goes beyond our customer solutions; its the foundation for your career development and the impact we have within the community. So, whats your possible? This is more than just a job; its a mission. We are seeking an experienced Elasticsearch Platforms Engineer to join our Data Platforms Infrastructure team. This role is pivotal in supporting and maintaining our Elastic Cloud Enterprise (ECE) environment, designin
        more
        NEW
        Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
        Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
        more
        Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
        Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
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        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
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        Frequently Asked Questions

        How many API jobs are there in Havant?
        There are 12 API jobs within 20 miles of Havant available on CWJobs right now.

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