Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
14 API jobs in Portsmouth + 20 miles
)
Senior Software Developer
Senior Software Developer
Spectrum It Recruitment Limited
Southampton (SO14)
£65000 - £70000 per annum + Bonus & Benefits
Experience creating RESTful APIs and ensuring API extensibility
Experience creating RESTful APIs and ensuring API extensibility
)
Gauging and sampling shore tanks in accordance with API, IP, company or other procedures.
Gauging and sampling shore tanks in accordance with API, IP, company or other procedures.
PREMIUM
Backend API development, ideally with Express, Nest.js or similar
Backend API development, ideally with Express, Nest.js or similar
NEW
)
Customer facing API's using web technologies
Customer facing API's using web technologies
Principal Software Engineer - Python
Principal Software Engineer - Python
Parent TEST TJ Company 1
Chandler's Ford, Eastleigh (SO53), SO53 3QB
65000
Title:Principal Software Engineer Python - Department:Procode IT - Location:Hybrid Commutable distance of either Chandlers Ford or Oxford - Salary:Circa £65k +DiscretionaryBonus Scheme - Sponsorship:Unfortunately, we are unable to offer sponsorship for this role - Ifyou'rea Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers, then this might be the role for you! Step into a role where your technical vision truly shapes the future! About us - We are a leading UK technology company delivering transformative, data driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience.
Title:Principal Software Engineer Python - Department:Procode IT - Location:Hybrid Commutable distance of either Chandlers Ford or Oxford - Salary:Circa £65k +DiscretionaryBonus Scheme - Sponsorship:Unfortunately, we are unable to offer sponsorship for this role - Ifyou'rea Principal Software Engineer, who enjoys architecting complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers, then this might be the role for you! Step into a role where your technical vision truly shapes the future! About us - We are a leading UK technology company delivering transformative, data driven solutions for the energy sector and beyond. With two decades of experience, we help organisations unlock the power of smart data to improve efficiency, reduce cost to serve, and enhance customer experience.
NEW
Application Support Engineer
Application Support Engineer
Spectrum It Recruitment Limited
Fareham (PO14)
£30000 - £35000 per annum + Benefits
Hybrid Working - Fareham, Hampshire £30,000 - £35,000 - We're looking for a driven Application Support Engineer to join my client and help deliver exceptional support for business-critical applications. If you enjoy problem-solving, working with clients, and collaborating with developers to deliver real solutions-this could be the role for you. What You'll Be Doing * Providing technical support and resolving application issues within agreed SLAs * Troubleshooting and managing client tickets from start to resolution * Working closely with stakeholders, analysts, and developers * Communicating clearly with clients and delivering excellent customer service * Gathering requirements for system changes (RFCs) and supporting their delivery * Testing, documenting, and supporting application updates * Assisting with debugging and implementing improvements (training provided)
Hybrid Working - Fareham, Hampshire £30,000 - £35,000 - We're looking for a driven Application Support Engineer to join my client and help deliver exceptional support for business-critical applications. If you enjoy problem-solving, working with clients, and collaborating with developers to deliver real solutions-this could be the role for you. What You'll Be Doing * Providing technical support and resolving application issues within agreed SLAs * Troubleshooting and managing client tickets from start to resolution * Working closely with stakeholders, analysts, and developers * Communicating clearly with clients and delivering excellent customer service * Gathering requirements for system changes (RFCs) and supporting their delivery * Testing, documenting, and supporting application updates * Assisting with debugging and implementing improvements (training provided)
)
QA Engineer (Junior-Mid Level) Location: Fareham, Hampshire (Full-Time, On-Site) Salary: £30,000 - £40,000 - I'm partnering with a fast-growing pet-tech business building smart, connected products used by hundreds of thousands of pet owners globally. As they scale, they're looking to hire a QA Engineer to play a key role in ensuring the quality and reliability of their products. The Opportunity - This role is well-suited to a junior to mid-level QA Engineer looking to develop in a product-focused environment. You'll work across mobile (Flutter), web applications, and internal tools, with a strong emphasis on manual testing and a clear pathway into automation or development. You'll collaborate closely with engineering and design teams, contributing directly to the quality of features before they reach end users. Key Responsibilities
QA Engineer (Junior-Mid Level) Location: Fareham, Hampshire (Full-Time, On-Site) Salary: £30,000 - £40,000 - I'm partnering with a fast-growing pet-tech business building smart, connected products used by hundreds of thousands of pet owners globally. As they scale, they're looking to hire a QA Engineer to play a key role in ensuring the quality and reliability of their products. The Opportunity - This role is well-suited to a junior to mid-level QA Engineer looking to develop in a product-focused environment. You'll work across mobile (Flutter), web applications, and internal tools, with a strong emphasis on manual testing and a clear pathway into automation or development. You'll collaborate closely with engineering and design teams, contributing directly to the quality of features before they reach end users. Key Responsibilities
Our client, a leading technology company in the Defence & Security sector, is currently seeking a talented Research & Development Software Engineer to join their innovative team on a permanent basis. This role is based at Portsdown Technology Park in Portsmouth and offers the exciting opportunity to work on cutting-edge immersive training solutions and simulations. * Build and maintain prototypes, proof-of-concept systems, and technical demonstrators * Take early-stage feasibility prototypes forward into working implementations, validating technical assumptions and documenting findings * Implement integrations between AI services, APIs, backend systems, XR applications, simulation environments, and third-party platforms * Develop microservices, wrappers, connectors, and service interfaces to support solution components
Our client, a leading technology company in the Defence & Security sector, is currently seeking a talented Research & Development Software Engineer to join their innovative team on a permanent basis. This role is based at Portsdown Technology Park in Portsmouth and offers the exciting opportunity to work on cutting-edge immersive training solutions and simulations. * Build and maintain prototypes, proof-of-concept systems, and technical demonstrators * Take early-stage feasibility prototypes forward into working implementations, validating technical assumptions and documenting findings * Implement integrations between AI services, APIs, backend systems, XR applications, simulation environments, and third-party platforms * Develop microservices, wrappers, connectors, and service interfaces to support solution components
)
Professional Services Consultant - SQL / Software Implementation
Professional Services Consultant - SQL / Software Implementation
Deerfoot Recruitment Solutions
Southampton (SO14)
£34000 - £39000 per annum
We're working with a leading software provider specialising, who is seeking a Professional Services Consultant with strong SQL and software implementation experience to join its growing team. This role combines software configuration, SQL scripting, application support, testing, and customer-facing delivery. Key Responsibilities * Configure and implement software solutions and workflow systems * Write and execute SQL queries and data scripts * Support software testing, UAT and issue resolution * Deliver customer training and software support * Work with XML/XSLT and system configuration tools * Provide go-live and post-implementation support * Liaise with customers and internal technical teams - Essential Skills * Experience in software implementation, application support, or professional services * Strong SQL skills (SQL Server preferred) * Customer-facing technical experience
We're working with a leading software provider specialising, who is seeking a Professional Services Consultant with strong SQL and software implementation experience to join its growing team. This role combines software configuration, SQL scripting, application support, testing, and customer-facing delivery. Key Responsibilities * Configure and implement software solutions and workflow systems * Write and execute SQL queries and data scripts * Support software testing, UAT and issue resolution * Deliver customer training and software support * Work with XML/XSLT and system configuration tools * Provide go-live and post-implementation support * Liaise with customers and internal technical teams - Essential Skills * Experience in software implementation, application support, or professional services * Strong SQL skills (SQL Server preferred) * Customer-facing technical experience
FEATURED
Introduction - Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can offer a wide range of opportunities for personal fulfilment and career growth. We currently employ over 600 people across eight sites in the UK, and our specialisations include software engineering, underwater robotics, radars, AI, and armed forces training. This is an initial 6 month contract role within our UK IT Business Unit. The IT Solution Architect will be responsible for designing and implementing technology solutions that align with business objectives and technical requirements.
Introduction - Saab UK is part of Scandinavia's largest defence company, bringing together the best of Swedish and British innovation. Saab offers world-leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can offer a wide range of opportunities for personal fulfilment and career growth. We currently employ over 600 people across eight sites in the UK, and our specialisations include software engineering, underwater robotics, radars, AI, and armed forces training. This is an initial 6 month contract role within our UK IT Business Unit. The IT Solution Architect will be responsible for designing and implementing technology solutions that align with business objectives and technical requirements.
)
You will have extensive experience across user acceptance testing, regression, end-to-end and API testing, as well as working with data at a SQL level where required.
You will have extensive experience across user acceptance testing, regression, end-to-end and API testing, as well as working with data at a SQL level where required.
Supporting the JAVA platform and having a full understanding of all the integrations that interact with the platform will be key to this role, so having good experience with integrated platforms (Headless/API) is essential. * Developing Integrated solutions (API, Web Services)
Supporting the JAVA platform and having a full understanding of all the integrations that interact with the platform will be key to this role, so having good experience with integrated platforms (Headless/API) is essential. * Developing Integrated solutions (API, Web Services)
Senior Developer – Enterprise Reporting & Applications
Senior Developer – Enterprise Reporting & Applications
Subsea Craft Limited
Portsmouth, Hampshire
£55,000 - £60,000 a year
Express.js for API and service development
Express.js for API and service development
AI is changing how software is built - join a team leveraging its capabilities. Full Stack Developer - AI-first approach Location - Onsite in Southampton, Hampshire. Tech - JavaScript, TypeScript, AI (Claude. This is your opportunity to join a growing digital technology specialist as a Full Stack Developer using AI daily to improve speed, quality and customer outcomes. This role is ideal for someone who is comfortable moving between frontend, backend, data, and web, and who is already using AI tools as part of their day-to-day development workflow. You'll be working in a pragmatic, collaborative environment where developers take ownership of features from concept through to deployment, and where modern tooling and AI-assisted development are actively encouraged. What You'll Be Doing Building and maintaining features end-to-end, from UI through to APIs, databases, and ...
AI is changing how software is built - join a team leveraging its capabilities. Full Stack Developer - AI-first approach Location - Onsite in Southampton, Hampshire. Tech - JavaScript, TypeScript, AI (Claude. This is your opportunity to join a growing digital technology specialist as a Full Stack Developer using AI daily to improve speed, quality and customer outcomes. This role is ideal for someone who is comfortable moving between frontend, backend, data, and web, and who is already using AI tools as part of their day-to-day development workflow. You'll be working in a pragmatic, collaborative environment where developers take ownership of features from concept through to deployment, and where modern tooling and AI-assisted development are actively encouraged. What You'll Be Doing Building and maintaining features end-to-end, from UI through to APIs, databases, and ...
371 exact matches jobs are outside your preferred location
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
Senior Full Stack Developer (TypeScript / Vue.js / C# / .NET) Fully Remote (UK-based) Contract Outside IR35 - Long-Term Contract - Competitive Day Rate - Were working with a well-established organisation undergoing a major platform transformation programme, and theyre looking to add an experienced Full Stack Developer to the team. This role will suit someone who enjoys owning features end-to-end, with strong frontend expertise while remaining comfortable working across APIs, databases, and backend services in a modern environment. What Youll Be Doing * Developing and enhancing customer-facing platforms and transactional systems * Building modern applications using Vue.js and TypeScript * Working closely with product, QA, and engineering teams to deliver new features * Investigating and resolving production issues across frontend, APIs, and databases
)
Familiarity with the Azure ecosystem: Service Bus, API Management, Event Hub
Familiarity with the Azure ecosystem: Service Bus, API Management, Event Hub
FEATURED
Champion the use of strategic platforms such as ENSEK Ignition and shared integration/API frameworks.
Champion the use of strategic platforms such as ENSEK Ignition and shared integration/API frameworks.
PREMIUM
)
Solutions Architect (Business Systems)
Solutions Architect (Business Systems)
Dignity Funerals Limited
Boyn Hill, Maidenhead (SL6), SL6 5AA
Up to £75,000 per annum
Drive modern integration approaches (API-first, event-driven, cloud-native)
Drive modern integration approaches (API-first, event-driven, cloud-native)
)
QA Engineer Automation
QA Engineer Automation
Halian Technology Limited
Maidenhead Thicket, Maidenhead (SL6)
Up to £400 per day
API testing and backend validation
API testing and backend validation
)
API Creation and Integration
API Creation and Integration
FEATURED
)
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
Connectivity: Design PL/SQL interfaces to handle RESTful API operations.
FEATURED
)
Software Programme Manager
Software Programme Manager
System Recruitment
Lymington (SO41), SO41 9AZ
£350 - £550 per day + open to negotiation
Key Skills: Software, Technical Programme Manager, Software Developer, Software Engineer, C, Linux, API, VM/Docker, OnPrem/Cloud, * API definition, consistency, suitability and validation
Key Skills: Software, Technical Programme Manager, Software Developer, Software Engineer, C, Linux, API, VM/Docker, OnPrem/Cloud, * API definition, consistency, suitability and validation
FEATURED
)
Oracle Technical Change Consultant - Financial Systems
Oracle Technical Change Consultant - Financial Systems
Cadence Resourcing Limited
Reading (RG1)
£550 - £600 per day + Outside IR35
The contract requires a solid understanding of database schema and API structures for core financial modules: General Ledger (GL), Accounts Payable (AP), Accounts Receivable (AR), Fixed Assets (FA), and Cash Management (CE).
The contract requires a solid understanding of database schema and API structures for core financial modules: General Ledger (GL), Accounts Payable (AP), Accounts Receivable (AR), Fixed Assets (FA), and Cash Management (CE).
FEATURED
Senior Software Developer C and Linux
Senior Software Developer C and Linux
System Recruitment
Waterford, Lymington (SO41), SO41 9AZ
£250 - £350 per day
Key Skills: Software Developer, Software Engineer, C, Linux, Autotools, LDAP, Active Directory, Terraform, OpenTofu, API
Key Skills: Software Developer, Software Engineer, C, Linux, Autotools, LDAP, Active Directory, Terraform, OpenTofu, API
FEATURED
Experience with REST API design and MCP integration patterns
Experience with REST API design and MCP integration patterns