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        408

        46 API jobs in Hampshire + 20 miles

        Software Engineer

        Halian Technology Limited
        New Town, Reading (RG1), RG1 3BE
        From £55,000 to £90,000 per annum Bonus, Pension, Private Healthcare,
        JOB Software Engineer - LOCATION Reading (Hybrid) TERM Permanent - SALARY £55,000 to £90,000 per annum - BENEFITS Bonus, Pension, Private Healthcare, Hybrid Working, Flexi-time, Learning & Development Budget, AI Training & Certifications etc. We are a forward-thinking technology organisation driving innovation through artificial intelligence and modern software engineering. As part of our continued growth, we are expanding our engineering team with the addition of an experienced AI Software Developer. We are looking to hire an AI Software Developer to design, build, and deploy intelligent applications and systems, leveraging modern AI frameworks and technologies from our Reading office on a hybrid basis. Strong experience in software development with a focus on AI/ML applications - A degree qualification (BSc, MSc, PhD etc.) in Computer Science, Artificial Intelligence, Software ...
        JOB Software Engineer - LOCATION Reading (Hybrid) TERM Permanent - SALARY £55,000 to £90,000 per annum - BENEFITS Bonus, Pension, Private Healthcare, Hybrid Working, Flexi-time, Learning & Development Budget, AI Training & Certifications etc. We are a forward-thinking technology organisation driving innovation through artificial intelligence and modern software engineering. As part of our continued growth, we are expanding our engineering team with the addition of an experienced AI Software Developer. We are looking to hire an AI Software Developer to design, build, and deploy intelligent applications and systems, leveraging modern AI frameworks and technologies from our Reading office on a hybrid basis. Strong experience in software development with a focus on AI/ML applications - A degree qualification (BSc, MSc, PhD etc.) in Computer Science, Artificial Intelligence, Software ...
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        Senior Software Engineer - Location: Near Winchester - Salary: Up to £65,000 - Clearance: Must hold SC Clearance and be eligible for DV - To Apply: Email - Overview - A leading technology organisation within the defence and national security sector is seeking a Senior Software Engineer to join a growing engineering team near Winchester. This is an opportunity to work on secure, mission-critical systems using modern cloud-native technologies within a collaborative and highly technical environment. The team delivers innovative software solutions across complex programmes supporting national security and defence operations. Key Responsibilities * Design, develop, and maintain scalable software solutions * Collaborate within Agile engineering teams to deliver high-quality products * Build and support cloud-native applications and infrastructure
        Senior Software Engineer - Location: Near Winchester - Salary: Up to £65,000 - Clearance: Must hold SC Clearance and be eligible for DV - To Apply: Email - Overview - A leading technology organisation within the defence and national security sector is seeking a Senior Software Engineer to join a growing engineering team near Winchester. This is an opportunity to work on secure, mission-critical systems using modern cloud-native technologies within a collaborative and highly technical environment. The team delivers innovative software solutions across complex programmes supporting national security and defence operations. Key Responsibilities * Design, develop, and maintain scalable software solutions * Collaborate within Agile engineering teams to deliver high-quality products * Build and support cloud-native applications and infrastructure
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        QA Engineer (Junior-Mid Level) Location: Fareham, Hampshire (Full-Time, On-Site) Salary: £30,000 - £40,000 - I'm partnering with a fast-growing pet-tech business building smart, connected products used by hundreds of thousands of pet owners globally. As they scale, they're looking to hire a QA Engineer to play a key role in ensuring the quality and reliability of their products. The Opportunity - This role is well-suited to a junior to mid-level QA Engineer looking to develop in a product-focused environment. You'll work across mobile (Flutter), web applications, and internal tools, with a strong emphasis on manual testing and a clear pathway into automation or development. You'll collaborate closely with engineering and design teams, contributing directly to the quality of features before they reach end users. Key Responsibilities
        QA Engineer (Junior-Mid Level) Location: Fareham, Hampshire (Full-Time, On-Site) Salary: £30,000 - £40,000 - I'm partnering with a fast-growing pet-tech business building smart, connected products used by hundreds of thousands of pet owners globally. As they scale, they're looking to hire a QA Engineer to play a key role in ensuring the quality and reliability of their products. The Opportunity - This role is well-suited to a junior to mid-level QA Engineer looking to develop in a product-focused environment. You'll work across mobile (Flutter), web applications, and internal tools, with a strong emphasis on manual testing and a clear pathway into automation or development. You'll collaborate closely with engineering and design teams, contributing directly to the quality of features before they reach end users. Key Responsibilities
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        AI Engineer

        Halian Technology Limited
        Reading (RG1)
        £95,000 per annum Bonus and benefits
        Reading (Hybrid) What if you could own and build the AI capability from the ground up in a scaling, purpose-driven tech company? Were hiring the first dedicated AI Engineer to join a fast-growing (~280 people) Healthtech organisation making a real-world impact. This is a rare opportunity to shape the AI strategy, design production-grade systems, and bring cutting-edge LLM-powered solutions into a live product environment. The Role - Youll sit at the intersection of AI, backend engineering, and cloud systems, designing and deploying intelligent features that directly impact users. * Design and implement LLM-based applications (RAG pipelines, agents, copilots) * Build scalable backend services using Python and Java * Integrate AI into existing cloud-native SaaS platforms * Own the full lifecycle: experimentation ? prototyping ? production
        Reading (Hybrid) What if you could own and build the AI capability from the ground up in a scaling, purpose-driven tech company? Were hiring the first dedicated AI Engineer to join a fast-growing (~280 people) Healthtech organisation making a real-world impact. This is a rare opportunity to shape the AI strategy, design production-grade systems, and bring cutting-edge LLM-powered solutions into a live product environment. The Role - Youll sit at the intersection of AI, backend engineering, and cloud systems, designing and deploying intelligent features that directly impact users. * Design and implement LLM-based applications (RAG pipelines, agents, copilots) * Build scalable backend services using Python and Java * Integrate AI into existing cloud-native SaaS platforms * Own the full lifecycle: experimentation ? prototyping ? production
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        Principal Software Engineer - Python

        Parent TEST TJ Company 1
        Chandler's Ford, Eastleigh (SO53), SO53 3QB
        65000
        Title:Principal Software Engineer Python - Department:Procode IT - Location:Hybrid Commutable distance of either Chandlers Ford or Oxford - Salary:Circa £65k +DiscretionaryBonus Scheme - Sponsorship:Unfortunately, we are unable to offer sponsorship for this role - Ifyou'rea Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers, then this might be the role for you! Step into a role where your technical vision truly shapes the future! About us - We are a leading UK technology company delivering transformative, data driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience.
        Title:Principal Software Engineer Python - Department:Procode IT - Location:Hybrid Commutable distance of either Chandlers Ford or Oxford - Salary:Circa £65k +DiscretionaryBonus Scheme - Sponsorship:Unfortunately, we are unable to offer sponsorship for this role - Ifyou'rea Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers, then this might be the role for you! Step into a role where your technical vision truly shapes the future! About us - We are a leading UK technology company delivering transformative, data driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience.
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        Business Analyst

        Nextech Group Limited
        Horsham (RH12)
        £39000 - £40000 per annum
        Location: Horsham (Hybrid) Salary: Up to £40,000 DOE *MUST HAVE VALID RIGHT TO WORK IN UK WITHOUT EVER NEEDING SPONSORSHIP* Our client is a well-established technology business with a strong reputation for delivering innovative software and digital solutions across a diverse customer base. Due to continued growth and investment in internal systems, they are looking to appoint a Software Business Analyst to support a range of business-critical projects. This is an excellent opportunity to join a collaborative and fast-paced SME environment where you'll play a key role in bridging the gap between business operations and technical delivery teams. The Role - As a Software Business Analyst, you'll work closely with stakeholders across the business to understand requirements, improve processes, and support the successful delivery of software and systems projects.
        Location: Horsham (Hybrid) Salary: Up to £40,000 DOE *MUST HAVE VALID RIGHT TO WORK IN UK WITHOUT EVER NEEDING SPONSORSHIP* Our client is a well-established technology business with a strong reputation for delivering innovative software and digital solutions across a diverse customer base. Due to continued growth and investment in internal systems, they are looking to appoint a Software Business Analyst to support a range of business-critical projects. This is an excellent opportunity to join a collaborative and fast-paced SME environment where you'll play a key role in bridging the gap between business operations and technical delivery teams. The Role - As a Software Business Analyst, you'll work closely with stakeholders across the business to understand requirements, improve processes, and support the successful delivery of software and systems projects.
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        R&D Software Engineer

        FBI &TMT
        Portsmouth (PO1)
        £40000 - £60000 per annum + Depending on experience
        Our client, a leading technology company in the Defence & Security sector, is currently seeking a talented Research & Development Software Engineer to join their innovative team on a permanent basis. This role is based at Portsdown Technology Park in Portsmouth and offers the exciting opportunity to work on cutting-edge immersive training solutions and simulations. * Build and maintain prototypes, proof-of-concept systems, and technical demonstrators * Take early-stage feasibility prototypes forward into working implementations, validating technical assumptions and documenting findings * Implement integrations between AI services, APIs, backend systems, XR applications, simulation environments, and third-party platforms * Develop microservices, wrappers, connectors, and service interfaces to support solution components
        Our client, a leading technology company in the Defence & Security sector, is currently seeking a talented Research & Development Software Engineer to join their innovative team on a permanent basis. This role is based at Portsdown Technology Park in Portsmouth and offers the exciting opportunity to work on cutting-edge immersive training solutions and simulations. * Build and maintain prototypes, proof-of-concept systems, and technical demonstrators * Take early-stage feasibility prototypes forward into working implementations, validating technical assumptions and documenting findings * Implement integrations between AI services, APIs, backend systems, XR applications, simulation environments, and third-party platforms * Develop microservices, wrappers, connectors, and service interfaces to support solution components
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        Server Infrastructure Engineer

        CBSbutler Holdings Limited
        Blandford Forum (DT11)
        £550 - £600 per day + Outside IR35
        +9 months + +On site in Blandford +SC cleared role +Outside IR35 +£550 - £600 a day - We are seeking a skilled and motivated Server Infrastructure Engineer to support the management, maintenance, and assurance of secure testbed environments that enable critical digital development, integration, and innovation activities within the Defence sector. Working as part of a specialist engineering team, you will be responsible for maintaining both on-premise and cloud-hosted infrastructure environments, ensuring secure, reliable, and continuous support for development activities, testing, exercises, and emerging AI capabilities. This is an exciting opportunity for an infrastructure professional with Defence CIS experience who enjoys working across server technologies, cloud platforms, virtualisation, networking, and cyber security. Key Responsibilities
        +9 months + +On site in Blandford +SC cleared role +Outside IR35 +£550 - £600 a day - We are seeking a skilled and motivated Server Infrastructure Engineer to support the management, maintenance, and assurance of secure testbed environments that enable critical digital development, integration, and innovation activities within the Defence sector. Working as part of a specialist engineering team, you will be responsible for maintaining both on-premise and cloud-hosted infrastructure environments, ensuring secure, reliable, and continuous support for development activities, testing, exercises, and emerging AI capabilities. This is an exciting opportunity for an infrastructure professional with Defence CIS experience who enjoys working across server technologies, cloud platforms, virtualisation, networking, and cyber security. Key Responsibilities
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        We're working with a leading software provider specialising, who is seeking a Professional Services Consultant with strong SQL and software implementation experience to join its growing team. This role combines software configuration, SQL scripting, application support, testing, and customer-facing delivery. Key Responsibilities * Configure and implement software solutions and workflow systems * Write and execute SQL queries and data scripts * Support software testing, UAT and issue resolution * Deliver customer training and software support * Work with XML/XSLT and system configuration tools * Provide go-live and post-implementation support * Liaise with customers and internal technical teams - Essential Skills * Experience in software implementation, application support, or professional services * Strong SQL skills (SQL Server preferred) * Customer-facing technical experience
        We're working with a leading software provider specialising, who is seeking a Professional Services Consultant with strong SQL and software implementation experience to join its growing team. This role combines software configuration, SQL scripting, application support, testing, and customer-facing delivery. Key Responsibilities * Configure and implement software solutions and workflow systems * Write and execute SQL queries and data scripts * Support software testing, UAT and issue resolution * Deliver customer training and software support * Work with XML/XSLT and system configuration tools * Provide go-live and post-implementation support * Liaise with customers and internal technical teams - Essential Skills * Experience in software implementation, application support, or professional services * Strong SQL skills (SQL Server preferred) * Customer-facing technical experience
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        FEATURED
        Introduction - Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can offer a wide range of opportunities for personal fulfilment and career growth. We currently employ over 600 people across eight sites in the UK, and our specialisations include software engineering, underwater robotics, radars, AI, and armed forces training. This is an initial 6 month contract role within our UK IT Business Unit. The IT Solution Architect will be responsible for designing and implementing technology solutions that align with business objectives and technical requirements.
        Introduction - Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can offer a wide range of opportunities for personal fulfilment and career growth. We currently employ over 600 people across eight sites in the UK, and our specialisations include software engineering, underwater robotics, radars, AI, and armed forces training. This is an initial 6 month contract role within our UK IT Business Unit. The IT Solution Architect will be responsible for designing and implementing technology solutions that align with business objectives and technical requirements.
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        QA Analyst

        Hays
        Southampton (SO14)
        £55000.0 - £60000.0 per annum + £60,000
        You will have extensive experience across user acceptance testing, regression, end-to-end and API testing, as well as working with data at a SQL level where required.
        You will have extensive experience across user acceptance testing, regression, end-to-end and API testing, as well as working with data at a SQL level where required.
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        Java Developer

        Brunswick Group Services Limited
        Southampton, Hampshire
        Competitive
        Supporting the JAVA platform and having a full understanding of all the integrations that interact with the platform will be key to this role, so having good experience with integrated platforms (Headless/API) is essential. * Developing Integrated solutions (API, Web Services)
        Supporting the JAVA platform and having a full understanding of all the integrations that interact with the platform will be key to this role, so having good experience with integrated platforms (Headless/API) is essential. * Developing Integrated solutions (API, Web Services)
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        Job Title - Job Category - Engineering - Job Description - Are you looking to work in Automation and develop industry-leading technologies on a collaborative development team? A proven track record in technology is required tell us what interests you and how you can help our emerging technology programs. This is an opportunity to impact materials handling by bringing Hyster and Yale products to the forefront of the marketplace. Our teams work on great projects within our 'hands-on' engineering development centre in the South East of England. This role is within the Frimley-based global robotics development team contributing to the development of robotic options for all lift truck models. Role Summary - The Robotics Cloud Software Engineer III is a senior individual contributor responsible for architecting, developing, and scaling cloud services, dashboards, and data processing systems ...
        Job Title - Job Category - Engineering - Job Description - Are you looking to work in Automation and develop industry-leading technologies on a collaborative development team? A proven track record in technology is required tell us what interests you and how you can help our emerging technology programs. This is an opportunity to impact materials handling by bringing Hyster and Yale products to the forefront of the marketplace. Our teams work on great projects within our 'hands-on' engineering development centre in the South East of England. This role is within the Frimley-based global robotics development team contributing to the development of robotic options for all lift truck models. Role Summary - The Robotics Cloud Software Engineer III is a senior individual contributor responsible for architecting, developing, and scaling cloud services, dashboards, and data processing systems ...
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        2026-04-24 - United Kingdom - Winnersh, Wokingham - Hybrid - Collins Aerospace, an RTX company, is recruiting an experienced Unmanned Systems Modelling & Control Engineer to lead and mentor a growing team working on autonomy and unmanned systems across air, land and maritime domains. Based at our Winnersh site near Reading with flexible/hybrid working, youll take systems from first principles through to detailed requirements, test and validation, using Model-Based Systems Engineering and Agile methods. Youll collaborate with Collins and Raytheon teams in the UK and internationally, with regular overseas travel for trials and demonstrations, and see your work turn into real-world capability that enhances safety and security. * Lead the modelling & control discipline for unmanned systems, acting as technical leader and mentor for a growing team.
        2026-04-24 - United Kingdom - Winnersh, Wokingham - Hybrid - Collins Aerospace, an RTX company, is recruiting an experienced Unmanned Systems Modelling & Control Engineer to lead and mentor a growing team working on autonomy and unmanned systems across air, land and maritime domains. Based at our Winnersh site near Reading with flexible/hybrid working, youll take systems from first principles through to detailed requirements, test and validation, using Model-Based Systems Engineering and Agile methods. Youll collaborate with Collins and Raytheon teams in the UK and internationally, with regular overseas travel for trials and demonstrations, and see your work turn into real-world capability that enhances safety and security. * Lead the modelling & control discipline for unmanned systems, acting as technical leader and mentor for a growing team.
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        2026-05-05 - United Kingdom - Winnersh, Wokingham - Hybrid - Collins Aerospace, an RTX company, is recruiting an experienced Unmanned Systems Modelling & Control Engineer to lead and mentor a growing team working on autonomy and unmanned systems across air, land and maritime domains. Based at our Winnersh site near Reading with flexible/hybrid working, youll take systems from first principles through to detailed requirements, test and validation, using Model-Based Systems Engineering and Agile methods. Youll collaborate with Collins and Raytheon teams in the UK and internationally, with regular overseas travel for trials and demonstrations, and see your work turn into real-world capability that enhances safety and security. * Lead the modelling & control discipline for unmanned systems, acting as technical leader and mentor for a growing team.
        2026-05-05 - United Kingdom - Winnersh, Wokingham - Hybrid - Collins Aerospace, an RTX company, is recruiting an experienced Unmanned Systems Modelling & Control Engineer to lead and mentor a growing team working on autonomy and unmanned systems across air, land and maritime domains. Based at our Winnersh site near Reading with flexible/hybrid working, youll take systems from first principles through to detailed requirements, test and validation, using Model-Based Systems Engineering and Agile methods. Youll collaborate with Collins and Raytheon teams in the UK and internationally, with regular overseas travel for trials and demonstrations, and see your work turn into real-world capability that enhances safety and security. * Lead the modelling & control discipline for unmanned systems, acting as technical leader and mentor for a growing team.
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        362 exact matches jobs are outside your preferred location

        Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
        Full-Stack Developer (React Native / Java) | London Hybrid | FinTech | Outside IR35 | React, React Native, Java, AWS | £450-500/day - A growing financial technology company is scaling its engineering team as it builds the next generation of modern web and mobile products for global users. With continued investment into digital platforms and infrastructure, they are looking for experienced Full-Stack Developers to support a major product and technology transformation programme. This role will focus on building scalable applications using React or React Native alongside backend services and APIs using Java. You'll work across frontend architecture, integrations, CI/CD pipelines, microservices, and cloud-native systems, helping deliver secure, high-performance products in a collaborative engineering environment. * 6+ years of full-stack engineering experience
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        FDE / Customer Engineer | London (5 Days Onsite) | Conversational AI / Enterprise SaaS | Hypergrowth AI Startup | Python, APIs, Integrations, LLMs | £150k-£180k + Equity + Benefits - A hypergrowth AI company is building enterprise-grade conversational AI agents used by some of the world's largest brands to automate and transform customer experience across voice, chat, email, and SMS. Backed by top-tier investors and scaling aggressively, they are now building a dedicated technical delivery function responsible for deploying AI agents into complex enterprise environments. This role sits at the intersection of engineering, AI workflows, and customer delivery, helping enterprise customers launch production-grade AI systems that drive measurable business impact. They are looking for technical, customer-facing engineers with experience delivering complex B2B SaaS solutions ...
        FDE / Customer Engineer | London (5 Days Onsite) | Conversational AI / Enterprise SaaS | Hypergrowth AI Startup | Python, APIs, Integrations, LLMs | £150k-£180k + Equity + Benefits - A hypergrowth AI company is building enterprise-grade conversational AI agents used by some of the world's largest brands to automate and transform customer experience across voice, chat, email, and SMS. Backed by top-tier investors and scaling aggressively, they are now building a dedicated technical delivery function responsible for deploying AI agents into complex enterprise environments. This role sits at the intersection of engineering, AI workflows, and customer delivery, helping enterprise customers launch production-grade AI systems that drive measurable business impact. They are looking for technical, customer-facing engineers with experience delivering complex B2B SaaS solutions ...
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        What is the average salary for API in Hampshire?

        Average salary per year
        £52,499

        The average salary for a API in Hampshire is £52,499. API in Hampshire salaries range from £42,499 to £62,499.

        Frequently Asked Questions

        How many API jobs are there in Hampshire?
        There are 46 API jobs within 20 miles of Hampshire available on CWJobs right now.

        Where in Hampshire are these jobs?
        You can find jobs in Southampton, Fareham, Farnborough.

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