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        17 API jobs in Portsmouth + 20 miles

        Digital Platform Architect

        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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        Senior Software Engineer - C++

        MaxAd
        Causeway, Petersfield (GU31), GU31
        £58000.00 - £63000.00 per annum + Excellent Benefits
        Circa £60,000 + Excellent Benefits Are you an experienced Software Engineer who takes pride in writing clean, efficient, well-structured code? Do you enjoy owning projects end-to-end, solving complex technical challenges and contributing to high-performance, mission-critical software products? This is a fantastic opportunity to join a successful, growing, employee-owned technology business that designs and delivers advanced broadcast technology used by professional media organisations around the world. Working as part of a close-knit engineering team, you'll play a key role in enhancing existing products, developing new products and features, supporting released software and contributing to long-term technical innovation.
        Circa £60,000 + Excellent Benefits Are you an experienced Software Engineer who takes pride in writing clean, efficient, well-structured code? Do you enjoy owning projects end-to-end, solving complex technical challenges and contributing to high-performance, mission-critical software products? This is a fantastic opportunity to join a successful, growing, employee-owned technology business that designs and delivers advanced broadcast technology used by professional media organisations around the world. Working as part of a close-knit engineering team, you'll play a key role in enhancing existing products, developing new products and features, supporting released software and contributing to long-term technical innovation.
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        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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        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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        Software Engineer

        Yoh Solutions Ltd
        Southampton (SO16)
        From £70,000 to £100,000 per annum Bonus, equity, PMI, pension
        Permanent | £75k£100k + Bonus + Equity | Hybrid (Southampton) If your idea of good engineering is squeezing every last cycle out of a CPU, building software that talks to hardware at speed, and solving real wireless signal-processing problems youll probably get on well here. This team designs and builds high-performance software for wireless communication systems 5G, satellite comms, and advanced baseband processing. The real, high-throughput, low-latency kind. Theyre hiring Senior Software Engineers and Principal Software Engineers, depending on depth of experience and appetite for technical leadership. What youll be working on Youll be turning clever DSP and comms algorithms into real-time production software running on x86 or ARM, and building high-performance APIs that interface with hardware acceleration. * Real-time C/C++ for wireless signal processing
        Permanent | £75k£100k + Bonus + Equity | Hybrid (Southampton) If your idea of good engineering is squeezing every last cycle out of a CPU, building software that talks to hardware at speed, and solving real wireless signal-processing problems youll probably get on well here. This team designs and builds high-performance software for wireless communication systems 5G, satellite comms, and advanced baseband processing. The real, high-throughput, low-latency kind. Theyre hiring Senior Software Engineers and Principal Software Engineers, depending on depth of experience and appetite for technical leadership. What youll be working on Youll be turning clever DSP and comms algorithms into real-time production software running on x86 or ARM, and building high-performance APIs that interface with hardware acceleration. * Real-time C/C++ for wireless signal processing
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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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        PHP Backend Developer

        Trafalgar Talent Ltd
        Fareham (PO15)
        Up to £60,000 per annum Plus 10% Bonus
        Trafalgar Talent is supporting a fast-growing, multi-award-winning cybersecurity business as they continue to scale their development team. This organisation builds cutting-edge security products used by millions worldwide, helping protect users from evolving digital threats across all their devices. Theyve developed a suite of powerful tools, including antivirus, VPN, ad-blocking, password management and more, all designed to simplify and strengthen online safety for everyday users. With continuous growth and new product innovation underway, the team is now looking for an experienced PHP Developer to join their high-performing engineering function. The Role As a Senior PHP Developer, youll play a key part in shaping and improving the companys core web systems. * User onboarding journeys * Customer account portals * APIs powering multiple applications
        Trafalgar Talent is supporting a fast-growing, multi-award-winning cybersecurity business as they continue to scale their development team. This organisation builds cutting-edge security products used by millions worldwide, helping protect users from evolving digital threats across all their devices. Theyve developed a suite of powerful tools, including antivirus, VPN, ad-blocking, password management and more, all designed to simplify and strengthen online safety for everyday users. With continuous growth and new product innovation underway, the team is now looking for an experienced PHP Developer to join their high-performing engineering function. The Role As a Senior PHP Developer, youll play a key part in shaping and improving the companys core web systems. * User onboarding journeys * Customer account portals * APIs powering multiple applications
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        Branch Logistics Coordinator

        Chubb Fire & Security Limited
        Portsmouth (PO1)
        £25,000 per annum Company Van + Commission + Overtime
        Chubb Fire & Security is currently recruiting a Logistics Coordinator to be based around the Portsmouth and surrounding area. You will be supporting our team of Portable Fire Extinguisher (PFX) Engineers. The main goal of this role is to coordinate all aspects of the supply chain operations and warehousing within branch, whilst supporting Engineers with the installation of Fire Extinguishers in the field (full training provided) About Us, Our Culture & What We Can Offer You Chubb Fire & Security have been protecting people and assets worldwide for more than 200 years. Providing essential and innovative security systems, equipment and services, from digital CCTV surveillance and intruder alarms to fire detection and suppression systems.
        Chubb Fire & Security is currently recruiting a Logistics Coordinator to be based around the Portsmouth and surrounding area. You will be supporting our team of Portable Fire Extinguisher (PFX) Engineers. The main goal of this role is to coordinate all aspects of the supply chain operations and warehousing within branch, whilst supporting Engineers with the installation of Fire Extinguishers in the field (full training provided) About Us, Our Culture & What We Can Offer You Chubb Fire & Security have been protecting people and assets worldwide for more than 200 years. Providing essential and innovative security systems, equipment and services, from digital CCTV surveillance and intruder alarms to fire detection and suppression systems.
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        FEATURED

        Senior Systems Developer

        Brockenhurst College
        Balmerlawn, Brockenhurst (SO42), SO42 7ZE
        £46790.00 to £49339.00 per year
        We have an exciting opportunity for a Senior Systems Developer to join the team on a full time, permanent basis. In return,you will receive a competitive salary of £46,790 £49,339 per annum (including £5000 market supplement), opportunities for professional growth and innovation, and be part of a forward-thinking team shaping the future of digital education. We are a high-achieving college who attract around 2,800 sixth form students across the region each year. We are based within the stunning New Forest National Park and offer our students a huge range of courses and superb facilities. Are you passionate about driving digital innovation and building robust, scalable systems? Brockenhurst College is seeking a Senior Systems Developer to lead the design, development, and strategic implementation of software solutions that power our digital infrastructure.
        We have an exciting opportunity for a Senior Systems Developer to join the team on a full time, permanent basis. In return,you will receive a competitive salary of £46,790 £49,339 per annum (including £5000 market supplement), opportunities for professional growth and innovation, and be part of a forward-thinking team shaping the future of digital education. We are a high-achieving college who attract around 2,800 sixth form students across the region each year. We are based within the stunning New Forest National Park and offer our students a huge range of courses and superb facilities. Are you passionate about driving digital innovation and building robust, scalable systems? Brockenhurst College is seeking a Senior Systems Developer to lead the design, development, and strategic implementation of software solutions that power our digital infrastructure.
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        PREMIUM

        Security Service Engineer

        Chubb Fire & Security Limited
        Southampton (SO14)
        Up to £40,000 per annum
        Think you know Chubb? We might just surprise you! Chubb is so much more than a fire and security business; we are an organisation that delivers innovative solutions and leverages new technologies to provide best in class service to our expanding client base. You wont see locks and safes here, but we are proud of our 200-year heritage. Our commitment to our people is to continually develop and innovate so that we grow together as your career unfolds. As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people. SALARY: Opportunity to earn in excess of £40,000 (This includes basic and additional supplements - base is determined on experience) LOCATION:Southampton and surrounding area
        Think you know Chubb? We might just surprise you! Chubb is so much more than a fire and security business; we are an organisation that delivers innovative solutions and leverages new technologies to provide best in class service to our expanding client base. You wont see locks and safes here, but we are proud of our 200-year heritage. Our commitment to our people is to continually develop and innovate so that we grow together as your career unfolds. As part of the global API Group, we join a family of organisations where leadership, and leadership development is our most powerful strategic advantage and the best way to invest in our people. SALARY: Opportunity to earn in excess of £40,000 (This includes basic and additional supplements - base is determined on experience) LOCATION:Southampton and surrounding area
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        FEATURED
        About the Role DP World in the UK is at the heart of Britains trading future, providing the right trading infrastructure, smart logistical solutions and the benefits of freeport status to our customers. An excellent opportunity has opened within CNS IT Operations for a Lead Developer . The Lead Developer plays a pivotal role in a fast-paced environment, combining strong technical expertise with effective team leadership. This position drives the companys technical strategy and ensures the delivery of high quality software solutions aligned with business objectives. Location: Southampton * Lead the CNS development team in designing, developing, testing, and deploying high-quality software solutions. * Provide technical guidance and mentorship, promoting collaboration and continuous learning.
        About the Role DP World in the UK is at the heart of Britains trading future, providing the right trading infrastructure, smart logistical solutions and the benefits of freeport status to our customers. An excellent opportunity has opened within CNS IT Operations for a Lead Developer . The Lead Developer plays a pivotal role in a fast-paced environment, combining strong technical expertise with effective team leadership. This position drives the companys technical strategy and ensures the delivery of high quality software solutions aligned with business objectives. Location: Southampton * Lead the CNS development team in designing, developing, testing, and deploying high-quality software solutions. * Provide technical guidance and mentorship, promoting collaboration and continuous learning.
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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.
        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.
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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
        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
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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.
        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.
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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.
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        UK - Fareham Full time 2025-10-31 Posted Yesterday REQ29783 Be visionary Teledyne Technologies Incorporated provides enabling technologies for industrial growth markets that require advanced technology and high reliability. These markets include aerospace and defense, factory automation, air and water quality environmental monitoring, electronics design and development, oceanographic research, deepwater oil and gas exploration and production, medical imaging and pharmaceutical research. We are looking for individuals who thrive on making an impact and want the excitement of being on a team that wins. Job Description Job Summary
        UK - Fareham Full time 2025-10-31 Posted Yesterday REQ29783 Be visionary Teledyne Technologies Incorporated provides enabling technologies for industrial growth markets that require advanced technology and high reliability. These markets include aerospace and defense, factory automation, air and water quality environmental monitoring, electronics design and development, oceanographic research, deepwater oil and gas exploration and production, medical imaging and pharmaceutical research. We are looking for individuals who thrive on making an impact and want the excitement of being on a team that wins. Job Description Job Summary
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        265 exact matches jobs are outside your preferred location

        At Yunex Traffic, we launch cities into the future with forward-looking infrastructure and transport solutions, making mobility safer, more efficient and more sustainable for all. Do you want to make a difference with the work you do? Join us as a SCM Digitalisation Lead Optimize purchase-to-pay processes for indirect and direct materials, focusing on digitalization, standardization, and efficiency Implement and scale Guided Buying solutions globally through cross-functional collaboration Drive AI adoption to streamline procurement workflows and enhance decision-making Integrate eCatalogs via API with external suppliers (e.g. Amazon, Mercateo) Maintain the global P2P control framework in SAP S/4HANA for compliance and efficiency Lead electronic supplier integration to automate procurement data exchange
        At Yunex Traffic, we launch cities into the future with forward-looking infrastructure and transport solutions, making mobility safer, more efficient and more sustainable for all. Do you want to make a difference with the work you do? Join us as a SCM Digitalisation Lead Optimize purchase-to-pay processes for indirect and direct materials, focusing on digitalization, standardization, and efficiency Implement and scale Guided Buying solutions globally through cross-functional collaboration Drive AI adoption to streamline procurement workflows and enhance decision-making Integrate eCatalogs via API with external suppliers (e.g. Amazon, Mercateo) Maintain the global P2P control framework in SAP S/4HANA for compliance and efficiency Lead electronic supplier integration to automate procurement data exchange
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        Full Stack Developer

        Spectrum It Recruitment Limited
        Poole (BH12)
        £45000 - £50000 per annum + Benefits
        C#, React, Azure DevOps Hybrid - Poole, Dorset (1 / 2 days per week in the office) £45,000 - £50,000 We're looking for a Full Stack Developer to join our agile software team and help build innovative, life-critical SaaS solutions for a global security company. You'll play a key role and be involved in all aspects of the Software Development Life Cycle (SDLC) including design, development, testing, deployment, release, and monitoring of applications. In addition to hands-on development, this role will take ownership of Azure DevOps pipelines, release management, and site reliability engineering (SRE) practices to ensure smooth, secure, and reliable delivery of our solutions. What You'll Do * Design, develop, and maintain full stack applications using React, .NET Core, Entity Framework, RESTful APIs, and GraphQL.
        C#, React, Azure DevOps Hybrid - Poole, Dorset (1 / 2 days per week in the office) £45,000 - £50,000 We're looking for a Full Stack Developer to join our agile software team and help build innovative, life-critical SaaS solutions for a global security company. You'll play a key role and be involved in all aspects of the Software Development Life Cycle (SDLC) including design, development, testing, deployment, release, and monitoring of applications. In addition to hands-on development, this role will take ownership of Azure DevOps pipelines, release management, and site reliability engineering (SRE) practices to ensure smooth, secure, and reliable delivery of our solutions. What You'll Do * Design, develop, and maintain full stack applications using React, .NET Core, Entity Framework, RESTful APIs, and GraphQL.
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        ClearCourse Technical Support Lead (Payments / API / Incident Management) Location: Reading Competitive salary + benefits ClearAccept is expanding, and were hiring a Technical Support Lead to take ownership of technical incidents, escalations and support processes for our cloud-native payments platform used by 5,000+ merchants. This is a high-impact role where youll work closely with Engineering, SRE, DevOps, Product and Operations to keep our platform stable and continuously improving as we scale. What Youll Be Doing * Lead and manage technical incidents and escalations * Triage and prioritise support tickets with Dev/SRE/DevOps * Investigate issues using Datadog, Postman, SQL, MongoDB * Analyse API logs, JSON payloads and system behaviour * Support merchant onboarding, transaction flows & payouts * Build and improve incident processes, SLAs and playbooks
        ClearCourse Technical Support Lead (Payments / API / Incident Management) Location: Reading Competitive salary + benefits ClearAccept is expanding, and were hiring a Technical Support Lead to take ownership of technical incidents, escalations and support processes for our cloud-native payments platform used by 5,000+ merchants. This is a high-impact role where youll work closely with Engineering, SRE, DevOps, Product and Operations to keep our platform stable and continuously improving as we scale. What Youll Be Doing * Lead and manage technical incidents and escalations * Triage and prioritise support tickets with Dev/SRE/DevOps * Investigate issues using Datadog, Postman, SQL, MongoDB * Analyse API logs, JSON payloads and system behaviour * Support merchant onboarding, transaction flows & payouts * Build and improve incident processes, SLAs and playbooks
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        PREMIUM

        Software Engineer (C# .Net & Visual Studio)

        TECHNOLOGY RESOURCING LIMITED
        Bellfields, Guildford (GU1), GU1
        From £40,000 to £51,000 per annum Annual bonus (currently £4.5–6K)
        Location:Guildford, Surrey Salary:£40-51K + bonus Flexible Hours Purpose-Driven CultureCutting-Edge Projects Join a purpose-driven tech team where innovation leads to direct business impact. If youre an experienced C# .NET Developer looking to work on cutting-edge projects in a highly collaborative, agile environment, then this is your opportunity to make a real difference. Why This Role Stands Out * Small Team, Big Impact: Work directly with the IT Director (a hands-on developer) and an infrastructure specialist your ideas wont just be heard, theyll shape the future. * Tech-Forward Culture: Embrace AI-assisted coding and testing tools to accelerate development, testing and deployment.
        Location:Guildford, Surrey Salary:£40-51K + bonus Flexible Hours Purpose-Driven CultureCutting-Edge Projects Join a purpose-driven tech team where innovation leads to direct business impact. If youre an experienced C# .NET Developer looking to work on cutting-edge projects in a highly collaborative, agile environment, then this is your opportunity to make a real difference. Why This Role Stands Out * Small Team, Big Impact: Work directly with the IT Director (a hands-on developer) and an infrastructure specialist your ideas wont just be heard, theyll shape the future. * Tech-Forward Culture: Embrace AI-assisted coding and testing tools to accelerate development, testing and deployment.
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        Data Support Analyst x2

        RNLI
        Poole (BH15)
        From £34,893 to £41,050 per annum (dependent on experience)
        Salary: £34,893 to £41,050 (dependent on experience) Contract type: Permanent Hours: Full Time Location: Poole, Dorset, England Location description: Hybrid between home and Poole - minimum 3 days per week in the office Closing date: 04-01-2026 About us Our purpose is simple: to save lives at sea. For 200 years, our lifeboat crews and lifeguards have shown selfless courage to rescue those in peril on the water. Behind them is a dedicated, talented team making it all possible. This is your chance to join that team and use your skills to help save lives every day. The role As a Data Support Analyst, youll be the first point of contact for data support at the RNLI. Youll provide Line 1 and Line 2 production support across our data platforms, triaging incidents, restoring service quickly, and preventing repeat issues.
        Salary: £34,893 to £41,050 (dependent on experience) Contract type: Permanent Hours: Full Time Location: Poole, Dorset, England Location description: Hybrid between home and Poole - minimum 3 days per week in the office Closing date: 04-01-2026 About us Our purpose is simple: to save lives at sea. For 200 years, our lifeboat crews and lifeguards have shown selfless courage to rescue those in peril on the water. Behind them is a dedicated, talented team making it all possible. This is your chance to join that team and use your skills to help save lives every day. The role As a Data Support Analyst, youll be the first point of contact for data support at the RNLI. Youll provide Line 1 and Line 2 production support across our data platforms, triaging incidents, restoring service quickly, and preventing repeat issues.
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        ServiceNow Architect

        Syntax Consultancy Limited
        Reading, Berkshire, RG1 1LZ
        500-525/day (Outside IR35)
        6 Month Contract Reading (Hybrid) £500-525/day (Outside IR35) Start ideally in Dec 2025 / Jan 2026. A chance to work with a global IT Consultancy on a ServiceNow design + integration project for an external client. Hybrid Working - 2 days/week working remotely (WFH) + 3 days/week working from the office in Reading. Paying up to £525/day (Outside IR35). * In-depth hands-on ServiceNow Architecture expertise including design, configuration + implementation. * Deep ServiceNow modules + workflows experience including: ITSM, ITOM, Discovery, ITAM, CSM, HRSD, SecOps, GRC). * Managing integrations between ServiceNow and other systems (via REST, SOAP APIs, IntegrationHub, MID Server, custom integrations), ensuring reliability, security, latency, error handling, monitoring. * Defining + implementing technical governance, architecture operating models, and instance strategy.
        6 Month Contract Reading (Hybrid) £500-525/day (Outside IR35) Start ideally in Dec 2025 / Jan 2026. A chance to work with a global IT Consultancy on a ServiceNow design + integration project for an external client. Hybrid Working - 2 days/week working remotely (WFH) + 3 days/week working from the office in Reading. Paying up to £525/day (Outside IR35). * In-depth hands-on ServiceNow Architecture expertise including design, configuration + implementation. * Deep ServiceNow modules + workflows experience including: ITSM, ITOM, Discovery, ITAM, CSM, HRSD, SecOps, GRC). * Managing integrations between ServiceNow and other systems (via REST, SOAP APIs, IntegrationHub, MID Server, custom integrations), ensuring reliability, security, latency, error handling, monitoring. * Defining + implementing technical governance, architecture operating models, and instance strategy.
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        Pen Tester

        Stackstudio Digital Ltd.
        Reading (RG1)
        From £400 to £410 per day
        Role/Job Title:Pen Tester Work Location: Reading (3days) The Role We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing. You shall also perform in-depth analysis of penetration testing results and create a report that describes findings, exploitation procedures, risks and recommendations. Please include a brief outline of the impact this role will have, including overview of customer industry and projects, access to cutting-edge technology etc. Do NOT include customer name. Your Responsibilities (Up to 10, avoiding repetition)
        Role/Job Title:Pen Tester Work Location: Reading (3days) The Role We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing. You shall also perform in-depth analysis of penetration testing results and create a report that describes findings, exploitation procedures, risks and recommendations. Please include a brief outline of the impact this role will have, including overview of customer industry and projects, access to cutting-edge technology etc. Do NOT include customer name. Your Responsibilities (Up to 10, avoiding repetition)
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        Senior Data Scientist

        Anson Mccade
        Bournemouth, Dorset
        £60,000 - £110,000 Annual
        ££60,000 - £110,000 GBP + Package Hybrid WORKING Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent Location: Cheltenham, London, Bournemouth - Consultative travel required Clearance: Must be a sole British National, elligable or holding SC or DV Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence problems
        ££60,000 - £110,000 GBP + Package Hybrid WORKING Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent Location: Cheltenham, London, Bournemouth - Consultative travel required Clearance: Must be a sole British National, elligable or holding SC or DV Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence problems
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        What is the average salary for API in Portsmouth?

        Average salary per year
        £55,000

        The average salary for a API in Portsmouth is £55,000. API in Portsmouth salaries range from £42,499 to £62,499.

        Frequently Asked Questions

        How many API jobs are there in Portsmouth?
        There are 17 API jobs within 20 miles of Portsmouth available on Jobsite right now.

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

        How many temporary and part-time API jobs are available in Portsmouth?
        There are 2 temporary API jobs and 5 part-time API jobs available in Portsmouth at the moment.