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14 Contract API jobs in Portsmouth + 20 miles
364 exact matches jobs are outside your preferred location
Hybrid - 3 days a week - Due to the nature the Company and work must be eligible for UK Security Clearance (SC) We are working with a leading UK technology and engineering organisation at the forefront of national security, defence, and advanced innovation. They deliver mission-critical solutions that give customers a decisive information advantage in complex, high-stakes environments. They are now seeking a DevSecOps Engineer to join a specialist team tackling some of the most challenging problems in modern technology spanning across cloud, security, automation, and AI/ML operations. * Securely updating deployed systems in sensitive environments * Scaling and maintaining resilient platforms under operational pressure * Applying DevSecOps and SRE principles to mission-critical systems - Required responsibilities * Drive end-to-end DevSecOps best practice across the SDLC
Hybrid - 3 days a week - Due to the nature the Company and work must be eligible for UK Security Clearance (SC) We are working with a leading UK technology and engineering organisation at the forefront of national security, defence, and advanced innovation. They deliver mission-critical solutions that give customers a decisive information advantage in complex, high-stakes environments. They are now seeking a DevSecOps Engineer to join a specialist team tackling some of the most challenging problems in modern technology spanning across cloud, security, automation, and AI/ML operations. * Securely updating deployed systems in sensitive environments * Scaling and maintaining resilient platforms under operational pressure * Applying DevSecOps and SRE principles to mission-critical systems - Required responsibilities * Drive end-to-end DevSecOps best practice across the SDLC
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Location: Farnborough (3 days per week onsite) Contract Length: Initial 3-month contract - IR35 Status: Outside IR35 - Security Clearance: All candidates must be eligible for security clearance prior to appointment. We are seeking an experienced Senior Software Engineer with strong geospatial data experience to join a high-performing engineering team delivering advanced data-driven and navigation-focused solutions within a complex operational environment. This role is suited to a hands-on software engineer with experience designing and developing scalable applications and services that work with geospatial datasets, spatial databases, and mapping technologies. Experience within the maritime domain and optimisation-based problem solving would be highly beneficial. Key Responsibilities * Design, develop, and maintain scalable software applications and services
Location: Farnborough (3 days per week onsite) Contract Length: Initial 3-month contract - IR35 Status: Outside IR35 - Security Clearance: All candidates must be eligible for security clearance prior to appointment. We are seeking an experienced Senior Software Engineer with strong geospatial data experience to join a high-performing engineering team delivering advanced data-driven and navigation-focused solutions within a complex operational environment. This role is suited to a hands-on software engineer with experience designing and developing scalable applications and services that work with geospatial datasets, spatial databases, and mapping technologies. Experience within the maritime domain and optimisation-based problem solving would be highly beneficial. Key Responsibilities * Design, develop, and maintain scalable software applications and services
FEATURED
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Strong C# / .NET Core / Web API experience
Strong C# / .NET Core / Web API experience
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Senior Software Engineer, AI/ML Integration
Senior Software Engineer, AI/ML Integration
ECM Selection Ltd.
Guildford, Surrey
Up to £80,000 per annum plus benefits
API development, for internal boundaries and potentially external usage
API development, for internal boundaries and potentially external usage
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IT & Systems Developer Administrator
IT & Systems Developer Administrator
Recruitment Helpline Ltd
Leatherhead (KT22)
From £29,000 to £32,000 per annum
Maintaining existing API integrations and investigating new ones
Maintaining existing API integrations and investigating new ones
Knowledge of API testing tools
Knowledge of API testing tools
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Experience testing web, Windows, or API-based systems in engineering or technical environments.
Experience testing web, Windows, or API-based systems in engineering or technical environments.
PREMIUM
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Test usability, stability, and performance across the stack, including Angular-based front ends, API-based back ends, and databases. API testing using tools such as Postman or Insomnia. You are confident in manual and API testing, comfortable with basic SQL, and have a solid understanding of QA processes within modern software delivery environments.
Test usability, stability, and performance across the stack, including Angular-based front ends, API-based back ends, and databases. API testing using tools such as Postman or Insomnia. You are confident in manual and API testing, comfortable with basic SQL, and have a solid understanding of QA processes within modern software delivery environments.
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Microservices and API design knowledge
Microservices and API design knowledge
FEATURED
Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud - Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. You will be equally comfortable discussing API design with frontend and mobile engineers as you are discussing business value and roadmap priorities with Senior Executives (C-suite/CxO level) to help them achieve their business ambitions.
Core Tech: Node.js, API Integration, Microservices, Microsoft Azure Cloud - Drive a culture of technical pride, ensuring robust API design, secure cloud deployment practices, and insightful code reviews. You will be equally comfortable discussing API design with frontend and mobile engineers as you are discussing business value and roadmap priorities with Senior Executives (C-suite/CxO level) to help them achieve their business ambitions.
We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
Proficient in Go and/or Python and experienced with modern observability tooling; bonus points for containers/IoT OS, ACL-as-code patterns, and carrier/router API integrations.
Proficient in Go and/or Python and experienced with modern observability tooling; bonus points for containers/IoT OS, ACL-as-code patterns, and carrier/router API integrations.
Identify new integrations and automation opportunities to increase collaboration between enterprise applications using Flow Designer, Integration Hub, and API standards.
Identify new integrations and automation opportunities to increase collaboration between enterprise applications using Flow Designer, Integration Hub, and API standards.
InfoSum is the worlds leading data collaboration platform, providing solutions to the worlds largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritize consumer privacy. Our vision is to unlock datas limitless potential, by enabling the worlds data to be connected but never shared. As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo. If you want to work with a business that encourages collaboration, and champions the idea that the sum is greater than its parts, then we want to hear from you. The Engineering department at InfoSum is dedicated to delivering high-quality, innovative software solutions that meet the needs of our customers and drive the success of our organization.
InfoSum is the worlds leading data collaboration platform, providing solutions to the worlds largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritize consumer privacy. Our vision is to unlock datas limitless potential, by enabling the worlds data to be connected but never shared. As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo. If you want to work with a business that encourages collaboration, and champions the idea that the sum is greater than its parts, then we want to hear from you. The Engineering department at InfoSum is dedicated to delivering high-quality, innovative software solutions that meet the needs of our customers and drive the success of our organization.
InfoSum is the worlds leading data collaboration platform, providing solutions to the worlds largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritize consumer privacy. Our vision is to unlock datas limitless potential, by enabling the worlds data to be connected but never shared. As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo. If you want to work with a business that encourages collaboration, and champions the idea that the sum is greater than its parts, then we want to hear from you. The Engineering department at InfoSum is dedicated to delivering high-quality, innovative software solutions that meet the needs of our customers and drive the success of our organization.
InfoSum is the worlds leading data collaboration platform, providing solutions to the worlds largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritize consumer privacy. Our vision is to unlock datas limitless potential, by enabling the worlds data to be connected but never shared. As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo. If you want to work with a business that encourages collaboration, and champions the idea that the sum is greater than its parts, then we want to hear from you. The Engineering department at InfoSum is dedicated to delivering high-quality, innovative software solutions that meet the needs of our customers and drive the success of our organization.
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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 ...
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.
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.
What if you could shape a career as unique as you? At WSP, you can always find opportunities to grow and do what matters to you. Make the most of our global reach to discover new challenges and chances to work with diverse, talented individuals who will help you expand your horizons. A little more about your role - As Lead GIS Consultant at WSP, you will play a pivotal role in leading and shaping multi-disciplinary projects across Water, Energy, Earth, and Environment. You will join a growing team of geospatial professionals committed to driving digital transformation and advancing our geospatial capabilities. In this role, you will lead the geospatial delivery of complex projects, taking ownership of solutions and delivery to ensure successful outcomes, while providing clear direction and oversight to the GIS team supporting this work.
What if you could shape a career as unique as you? At WSP, you can always find opportunities to grow and do what matters to you. Make the most of our global reach to discover new challenges and chances to work with diverse, talented individuals who will help you expand your horizons. A little more about your role - As Lead GIS Consultant at WSP, you will play a pivotal role in leading and shaping multi-disciplinary projects across Water, Energy, Earth, and Environment. You will join a growing team of geospatial professionals committed to driving digital transformation and advancing our geospatial capabilities. In this role, you will lead the geospatial delivery of complex projects, taking ownership of solutions and delivery to ensure successful outcomes, while providing clear direction and oversight to the GIS team supporting this work.
Roke, Roke Manor, Romsey, Hampshire, United Kingdom Job Description Posted Tuesday, 12 May 2026, 19:00 - Great ideas come from different minds. Thats why we bring together engineers, scientists, analysts, and creatives from every background and give them the trust, tools, and freedom to make a difference. What connects us is the mission: solving meaningful problems and building capability that protects what matters most. And as the challenges evolve, so do we working on the technologies that will shape tomorrow, not just today. About Roke - The Opportunity - Roke are now looking for a passionate DevSecOps Engineer with Software Development experience to become an aggregated part of our Defence Information Advantage team. Innovation is at the core of what we do. You will be encouraged to contribute to Rokes innovation process by devising ideas for products/ techniques, developing ...
Roke, Roke Manor, Romsey, Hampshire, United Kingdom Job Description Posted Tuesday, 12 May 2026, 19:00 - Great ideas come from different minds. Thats why we bring together engineers, scientists, analysts, and creatives from every background and give them the trust, tools, and freedom to make a difference. What connects us is the mission: solving meaningful problems and building capability that protects what matters most. And as the challenges evolve, so do we working on the technologies that will shape tomorrow, not just today. About Roke - The Opportunity - Roke are now looking for a passionate DevSecOps Engineer with Software Development experience to become an aggregated part of our Defence Information Advantage team. Innovation is at the core of what we do. You will be encouraged to contribute to Rokes innovation process by devising ideas for products/ techniques, developing ...
This is not a generic SAP support role. If you have spent time in enterprise SAP environments and you want to go deeper, debugging real production issues, working alongside product engineers, and building expertise in a product used by some of the world's most complex organisations, this is worth reading. As an L2 Support Analyst at Basis Technologies, you sit at the technical heart of the customer experience. You take the hard cases, the ones that require real root cause analysis, ABAP debugging, and transport management expertise, and you solve them. You work directly with customers' technical teams, and when a defect needs escalating, you hand it to L3 Engineering with your analysis already done. Product depth, not project breadth. If you have come from a consultancy or SI background, you will know what it feels like to move on before you fully understand what you built.
This is not a generic SAP support role. If you have spent time in enterprise SAP environments and you want to go deeper, debugging real production issues, working alongside product engineers, and building expertise in a product used by some of the world's most complex organisations, this is worth reading. As an L2 Support Analyst at Basis Technologies, you sit at the technical heart of the customer experience. You take the hard cases, the ones that require real root cause analysis, ABAP debugging, and transport management expertise, and you solve them. You work directly with customers' technical teams, and when a defect needs escalating, you hand it to L3 Engineering with your analysis already done. Product depth, not project breadth. If you have come from a consultancy or SI background, you will know what it feels like to move on before you fully understand what you built.
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives. You can experience a world of opportunity and the chance to shape a career as unique as you. A little more about your role - As a Principal GIS Consultant at WSP, you will play a pivotal role in leading and shaping multi-disciplinary projects across Water, Energy, Earth, and Environment. You will join a growing team of geospatial professionals committed to driving digital transformation and advancing our geospatial capabilities. In this role, you will lead the geospatial delivery of complex projects, taking ownership of solutions and delivery to ensure successful outcomes.
What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives. You can experience a world of opportunity and the chance to shape a career as unique as you. A little more about your role - As a Principal GIS Consultant at WSP, you will play a pivotal role in leading and shaping multi-disciplinary projects across Water, Energy, Earth, and Environment. You will join a growing team of geospatial professionals committed to driving digital transformation and advancing our geospatial capabilities. In this role, you will lead the geospatial delivery of complex projects, taking ownership of solutions and delivery to ensure successful outcomes.
Monitoring and optimising API development and managing calls and consumption cost
Monitoring and optimising API development and managing calls and consumption cost
We have a multi-skilled team, working across the full software stack from application code to the web user interface and RESTful API.
We have a multi-skilled team, working across the full software stack from application code to the web user interface and RESTful API.
Monitoring and optimising API development and managing calls and consumption cost
Monitoring and optimising API development and managing calls and consumption cost