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        13 Contract API jobs in Havant + 20 miles

        Digital Platform Architect

        Quilter
        Southampton, Hampshire
        Competitive
        Drive adoption of cloud-native, API-first, and DevOps practices to accelerate delivery and improve resilience.
        Drive adoption of cloud-native, API-first, and DevOps practices to accelerate delivery and improve resilience.
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        NEW

        Dynamics 365 Architect

        Bright Purple Resourcing
        Southampton, Hampshire, SO1
        Up to £90,000
        UK Remote (Occasional travel to Glasgow or Reading) * Up to £100,000 per annum (Including car allowance + bonus) * Permanent * Eligibility for SC Clearance Required - Are you an accomplished Dynamics 365 Architect with a passion for designing impactful, enterprise-grade solutions? We are seeking a forward-thinking professional to join a high-performing Microsoft practice, where you will play a pivotal role in the technical design and delivery of secure, scalable Dynamics 365 and Power Platform solutions. This is a remote role based in the UK, with occasional travel required to client sites or team hubs in Glasgow or Reading. Please note that eligibility for SC Clearance is essential. * Salary up to £100,000 with Car allowance and performance-based bonus included * Flexible remote working with occasional hybrid travel
        UK Remote (Occasional travel to Glasgow or Reading) * Up to £100,000 per annum (Including car allowance + bonus) * Permanent * Eligibility for SC Clearance Required - Are you an accomplished Dynamics 365 Architect with a passion for designing impactful, enterprise-grade solutions? We are seeking a forward-thinking professional to join a high-performing Microsoft practice, where you will play a pivotal role in the technical design and delivery of secure, scalable Dynamics 365 and Power Platform solutions. This is a remote role based in the UK, with occasional travel required to client sites or team hubs in Glasgow or Reading. Please note that eligibility for SC Clearance is essential. * Salary up to £100,000 with Car allowance and performance-based bonus included * Flexible remote working with occasional hybrid travel
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        Senior Software Engineer

        Bright Purple Resourcing
        Southampton, Hampshire, SO1
        Up to £80,000
        Are you ready to put your technical expertise to work in transforming services that directly improve lives across the UK? Our client provides emergency accommodation and vital support for some of the countrys most vulnerable people including survivors of domestic abuse, refugees, and individuals seeking asylum. Their mission is to create safe environments and deliver innovative solutions that protect and empower those most in need. They are now looking for a Senior Software Engineerto take a key role in rebuilding and modernising their software landscape. This is a unique opportunity to shape critical systems that underpin essential frontline services. Whats on Offer * Fully remote within the UK * Salary up to £80,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace
        Are you ready to put your technical expertise to work in transforming services that directly improve lives across the UK? Our client provides emergency accommodation and vital support for some of the countrys most vulnerable people including survivors of domestic abuse, refugees, and individuals seeking asylum. Their mission is to create safe environments and deliver innovative solutions that protect and empower those most in need. They are now looking for a Senior Software Engineerto take a key role in rebuilding and modernising their software landscape. This is a unique opportunity to shape critical systems that underpin essential frontline services. Whats on Offer * Fully remote within the UK * Salary up to £80,000 * 33 days annual leave * Pension & healthcare * A role with genuine social impact * A supportive, mission-driven workplace
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        Fixed Term - Logistics - Havant - About the Role - Salary: £52,000 £60,000 + Excellent Benefits - Working Pattern: 37.5 hours per week | 4 day working week Monday to Thursday | Remote working but required to come to the office when needed. Location: Havant, Portsmouth. Here at Lockheed Martin we are seeking a Logistics Software Engineer to enhance its software development capability and provide ongoing support for a suite of applications used by both internal stakeholders and Ministry of Defence (MoD) customers. This role requires an experienced and innovative professional who can assume ownership of both new and existing development projects. The successful candidate will be capable of defining technical requirements, managing development tasks, and delivering high-quality software solutions that meet or exceed customer expectations. Key Responsibilities
        Fixed Term - Logistics - Havant - About the Role - Salary: £52,000 £60,000 + Excellent Benefits - Working Pattern: 37.5 hours per week | 4 day working week Monday to Thursday | Remote working but required to come to the office when needed. Location: Havant, Portsmouth. Here at Lockheed Martin we are seeking a Logistics Software Engineer to enhance its software development capability and provide ongoing support for a suite of applications used by both internal stakeholders and Ministry of Defence (MoD) customers. This role requires an experienced and innovative professional who can assume ownership of both new and existing development projects. The successful candidate will be capable of defining technical requirements, managing development tasks, and delivering high-quality software solutions that meet or exceed customer expectations. Key Responsibilities
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        Are you a seasoned IT professional ready to take the lead on shaping robust, scalable, and secure technical solutions? We're looking for an IT Infrastructure Lead to drive architectural consistency, technical excellence, and delivery best practices across our IT function. About the Role - As our IT Technical Lead, you'll be at the heart of our technology ecosystem-bridging infrastructure, application development, service delivery, and cybersecurity. You'll play a pivotal role in guiding the design and implementation of end-to-end solutions, acting as a senior technical authority and trusted advisor to both IT and business teams. This role is hands-on when it needs to be, offering a unique blend of strategic influence and technical depth. From resolving complex incidents to shaping future-ready architectures, your contribution will be key to our IT evolution.
        Are you a seasoned IT professional ready to take the lead on shaping robust, scalable, and secure technical solutions? We're looking for an IT Infrastructure Lead to drive architectural consistency, technical excellence, and delivery best practices across our IT function. About the Role - As our IT Technical Lead, you'll be at the heart of our technology ecosystem-bridging infrastructure, application development, service delivery, and cybersecurity. You'll play a pivotal role in guiding the design and implementation of end-to-end solutions, acting as a senior technical authority and trusted advisor to both IT and business teams. This role is hands-on when it needs to be, offering a unique blend of strategic influence and technical depth. From resolving complex incidents to shaping future-ready architectures, your contribution will be key to our IT evolution.
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        Embedded Software Engineer

        Morson Edge
        The Airport, Portsmouth (PO3), PO3
        £48.59 - 65.00 per hour + Inside IR35
        Portsmouth (hybrid working 3 days onsite per week, 2 days from home) – 6 month duration – Pay rate £48.59 p/h PAYE (£55.65 p/h including holiday pay) or £65 p/h Umbrella - We are looking for an Embedded Software Engineer to join our defence clients Software Defined Radio team within the UK System Delivery group. The team is undertaking the design and implementation of a satellite communications Software Defined Radio (SDR) modem. You will be part of a small multi-disciplinary team containing software, system, firmware and infrastructure engineers. There will be scope in the future to work on further developments as project needs arise. You will research and develop aspects of modem products and associated communications systems, using your experience in software within complex systems. Responsibilities
        Portsmouth (hybrid working 3 days onsite per week, 2 days from home) – 6 month duration – Pay rate £48.59 p/h PAYE (£55.65 p/h including holiday pay) or £65 p/h Umbrella - We are looking for an Embedded Software Engineer to join our defence clients Software Defined Radio team within the UK System Delivery group. The team is undertaking the design and implementation of a satellite communications Software Defined Radio (SDR) modem. You will be part of a small multi-disciplinary team containing software, system, firmware and infrastructure engineers. There will be scope in the future to work on further developments as project needs arise. You will research and develop aspects of modem products and associated communications systems, using your experience in software within complex systems. Responsibilities
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        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. Explore a wealth of possibilities. Take on challenges, create smart inventions, and grow beyond. This is a place for curious minds, brave pioneers, and everyone in between. Together, we achieve the extraordinary, each bringing our unique perspectives. Your part matters.
        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. Explore a wealth of possibilities. Take on challenges, create smart inventions, and grow beyond. This is a place for curious minds, brave pioneers, and everyone in between. Together, we achieve the extraordinary, each bringing our unique perspectives. Your part matters.
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        Neos Networks offers alternative working arrangements that give employees some flexibility, including office, home and hybrid working. Base location: Havant with hybrid working 2 days per week in the office - Salary: £ to £69,600 dep on experience + performance related bonus + a range of other benefits to support your family, finances, and wellbeing. Working Pattern: Permanent Full time 37 hours per week - Role Purpose - The Application Support Engineer delivers operational and administrative support for Neos Networks monitoring and service management platforms, primarily Splunk and ServiceNow. Key responsibilities include maintaining dashboards that visualise network health, managing data ingestion from infrastructure devices (e.g. switches, routers, firewalls, Power & Environmental services, etc), scripting automation to enhance alerting and response, and supporting
        Neos Networks offers alternative working arrangements that give employees some flexibility, including office, home and hybrid working. Base location: Havant with hybrid working 2 days per week in the office - Salary: £ to £69,600 dep on experience + performance related bonus + a range of other benefits to support your family, finances, and wellbeing. Working Pattern: Permanent Full time 37 hours per week - Role Purpose - The Application Support Engineer delivers operational and administrative support for Neos Networks monitoring and service management platforms, primarily Splunk and ServiceNow. Key responsibilities include maintaining dashboards that visualise network health, managing data ingestion from infrastructure devices (e.g. switches, routers, firewalls, Power & Environmental services, etc), scripting automation to enhance alerting and response, and supporting
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        Job Description * Wireless (Aruba/Cisco wireless, RF design, site surveys, WPA2/3 Enterprise, integration with NAC) * EVPN/VXLAN (data center fabrics, MP-BGP, route types, spine-leaf design, segmentation) * Network Access Control (NAC) (Cisco ISE or Aruba ClearPass, 802.1X/MAB, posture assessment, guest/BYOD workflows) * Network Automation / NetDevOps (Python, Ansible/Nornir, CI/CD pipelines, Source of Truth [Nautobot/NetBox], vendor APIs) If you have experience in any of these specialist tracks, even just one, we encourage you to apply. * Provide SME input to core networking technologies for operational and project delivery purposes * Act as a technical lead in all Network & Communication activities, working closely with connectivity partners and third-party suppliers * Proactively review the Network & Communications infrastructure to identify opportunities for conti
        Job Description * Wireless (Aruba/Cisco wireless, RF design, site surveys, WPA2/3 Enterprise, integration with NAC) * EVPN/VXLAN (data center fabrics, MP-BGP, route types, spine-leaf design, segmentation) * Network Access Control (NAC) (Cisco ISE or Aruba ClearPass, 802.1X/MAB, posture assessment, guest/BYOD workflows) * Network Automation / NetDevOps (Python, Ansible/Nornir, CI/CD pipelines, Source of Truth [Nautobot/NetBox], vendor APIs) If you have experience in any of these specialist tracks, even just one, we encourage you to apply. * Provide SME input to core networking technologies for operational and project delivery purposes * Act as a technical lead in all Network & Communication activities, working closely with connectivity partners and third-party suppliers * Proactively review the Network & Communications infrastructure to identify opportunities for conti
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        2025-11-26T08:25:42+00:00 - AccelerComm Ltd - FULL_TIME - Department: Software - Employment Type: Permanent - Full Time - Location: Southampton, UK - Reporting To: Chris Rawlings - Description - This is a unique opportunity to join a fast-growing company on the South coast, with international reach. We are looking for a capable, enthusiastic and personable Principal Software Engineer to join our Software & Systems Development Team. This is a hands-on role, which will play an important part in the growth of AccelerComm and its product portfolio. Key Responsibilities * Create designs, write code and corresponding tests in the development and optimisation of real-time software implementations of wireless communication signal processing, using x86 or ARM targets. * Create designs, write code and corresponding tests for high-performance software and APIs for hardware imple
        2025-11-26T08:25:42+00:00 - AccelerComm Ltd - FULL_TIME - Department: Software - Employment Type: Permanent - Full Time - Location: Southampton, UK - Reporting To: Chris Rawlings - Description - This is a unique opportunity to join a fast-growing company on the South coast, with international reach. We are looking for a capable, enthusiastic and personable Principal Software Engineer to join our Software & Systems Development Team. This is a hands-on role, which will play an important part in the growth of AccelerComm and its product portfolio. Key Responsibilities * Create designs, write code and corresponding tests in the development and optimisation of real-time software implementations of wireless communication signal processing, using x86 or ARM targets. * Create designs, write code and corresponding tests for high-performance software and APIs for hardware imple
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        2025-11-26T08:41:19+00:00 - AccelerComm Ltd - FULL_TIME - Department: Software - Employment Type: Permanent - Full Time - Location: Southampton, UK - Description - This is a unique opportunity to join a fast-growing company on the South coast, with international reach. We are looking for a capable, enthusiastic and personable Senior Software Engineer to join our Software & Systems Development Team. It's essential that you have some exposure to writing code in C or C++; experience of Matlab and Python is also highly desirable, as is any contributing knowledge of Wireless Communication. This is a hands-on role, which will play an important part in the growth of AccelerComm and its product portfolio. Key Responsibilities * Lead in the development and optimisation of real-time software implementations of wireless communication signal processing, using x86 or ARM targets.
        2025-11-26T08:41:19+00:00 - AccelerComm Ltd - FULL_TIME - Department: Software - Employment Type: Permanent - Full Time - Location: Southampton, UK - Description - This is a unique opportunity to join a fast-growing company on the South coast, with international reach. We are looking for a capable, enthusiastic and personable Senior Software Engineer to join our Software & Systems Development Team. It's essential that you have some exposure to writing code in C or C++; experience of Matlab and Python is also highly desirable, as is any contributing knowledge of Wireless Communication. This is a hands-on role, which will play an important part in the growth of AccelerComm and its product portfolio. Key Responsibilities * Lead in the development and optimisation of real-time software implementations of wireless communication signal processing, using x86 or ARM targets.
        more

        318 exact matches jobs are outside your preferred location

        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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        Product management, within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from discovery through delivery and iteration for Clients API providers. * Define the long-term vision and strategy for API products, focusing on the needs of developers, clinicians, and patients. * Proven experience in product management, ideally within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from
        Product management, within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from discovery through delivery and iteration for Clients API providers. * Define the long-term vision and strategy for API products, focusing on the needs of developers, clinicians, and patients. * Proven experience in product management, ideally within digital services or public sector environments experienced with Apigee (preferred) or similar API management platforms, including API publishing, monitoring, and access control. * Lead the end-to-end product lifecycle for the onboarding service, from
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        Extensive knowledge and experience with modern ITSM tools, ITIL and API technologies, solutions, and architectures. * Service Integrations using API based policies
        Extensive knowledge and experience with modern ITSM tools, ITIL and API technologies, solutions, and architectures. * Service Integrations using API based policies
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        PREMIUM
        The successful candidate will demonstrate significant expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable technology solutions using Web API, Azure App Service, and .NET Core to satisfy business requirements and enhance operational efficiency. * Define architectural patterns for microservices and API management. Azure API Development * Develop and maintain APIs using Azure API Management, Web API, and .NET Core to enable secure and efficient integrations. * Ensure API performance, security, and compliance with best practices. * Monitor and optimize application and API performance using Azure Monitor, Application Insights, and Log Analytics. * Expertise in Mic
        The successful candidate will demonstrate significant expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable technology solutions using Web API, Azure App Service, and .NET Core to satisfy business requirements and enhance operational efficiency. * Define architectural patterns for microservices and API management. Azure API Development * Develop and maintain APIs using Azure API Management, Web API, and .NET Core to enable secure and efficient integrations. * Ensure API performance, security, and compliance with best practices. * Monitor and optimize application and API performance using Azure Monitor, Application Insights, and Log Analytics. * Expertise in Mic
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        Senior .Net Integration Developer

        Rise Technical
        Maidenhead, Berkshire
        £50000.00 - £70000.00 per annum + + Training + Holiday
        You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
        You will use your expertise in C#/.NET and modern APIs (REST, WebAPI, JSON, OAuth2) to build fault-tolerant, event-driven integrations, support customers and partners with API usage, and deliver clear, high-quality documentation while maintaining security, GDPR compliance, and operational reliability. Taking integration leadership, you will design and maintain well-documented financial and third-party integrations built on modern API standards. * Support customers and partners with integration setup and API usage
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        Frequently Asked Questions

        How many contract API jobs are there in Havant?
        There are 13 contract API jobs within 20 miles of Havant available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Havant?
        As well as contract API jobs in Havant, you can find contract Quality Assurance, QA Analyst, Software Developer, amongst many others.