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1 Contract API job in Southampton + 20 miles
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 ...
46 exact matches jobs are outside your preferred location
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Test & AI Evaluation Lead
Test & AI Evaluation Lead
MarkIT Placements
Chilton, Didcot (OX11), OX11
From £550 to £750 per day depending on experience
Oversee automated testing across API and service layers, UI (E2E and accessibility), and infrastructure and deployment workflows.
Oversee automated testing across API and service layers, UI (E2E and accessibility), and infrastructure and deployment workflows.
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NSX-T Engineer / Architect SC Cleared
NSX-T Engineer / Architect SC Cleared
Sanderson Government and Defence
Farnborough (GU14), GU14
£550 - £750 per day
Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
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Role Details - Role / Job Title:Python Developer - Work Location:Wokingham, UK - Mode of Working:Office - The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Python's core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Your Responsibilities - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code.
Role Details - Role / Job Title:Python Developer - Work Location:Wokingham, UK - Mode of Working:Office - The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Python's core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Your Responsibilities - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code.
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The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Pythons core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Work from Office - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code. Develop and maintain RESTful APIs using OpenAPI/Swagger, Connexion, or FastAPI.
The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Pythons core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Work from Office - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code. Develop and maintain RESTful APIs using OpenAPI/Swagger, Connexion, or FastAPI.
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Infrastructure Engineer - SC Cleared - Outside IR35
Infrastructure Engineer - SC Cleared - Outside IR35
JLA Resourcing Ltd
Melksham (SN12)
£400 to £435 per day
Role – Infrastructure Engineer - Location – Hybrid, one day a week onsite in Corsham - Contract – Initial 7 month contract - Rate - £400 to £435 per day - Start – ASAP - You must hold Active SC Clearance to be eligible for this role. This role has been deemed Outside IR35. A leading technology consultancy supporting highly secure UK government environments is looking for an SC Cleared Infrastructure Engineer with strong service monitoring and observability experience to join their growing infrastructure team. This role focuses on enhancing monitoring capabilities across complex private cloud, multi-tenant hosting environments, improving operational visibility, service reliability and alerting across infrastructure and applications. This is an excellent opportunity for an engineer with strong VMware, Splunk and infrastructure monitoring experience to work within mission-critical, ...
Role – Infrastructure Engineer - Location – Hybrid, one day a week onsite in Corsham - Contract – Initial 7 month contract - Rate - £400 to £435 per day - Start – ASAP - You must hold Active SC Clearance to be eligible for this role. This role has been deemed Outside IR35. A leading technology consultancy supporting highly secure UK government environments is looking for an SC Cleared Infrastructure Engineer with strong service monitoring and observability experience to join their growing infrastructure team. This role focuses on enhancing monitoring capabilities across complex private cloud, multi-tenant hosting environments, improving operational visibility, service reliability and alerting across infrastructure and applications. This is an excellent opportunity for an engineer with strong VMware, Splunk and infrastructure monitoring experience to work within mission-critical, ...
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Job title: Event Management Engineer - Location: Corsham - Duration: 6 months - Rate: £430 per day inside ir35 - SC security clearance is required for this role - The Role - Supporting a key programme within the UK defence environment, we're looking for a Monitoring / Event Management Engineer with strong Splunk and enterprise tooling experience to join the Hosting & Tooling team onsite at MOD Corsham. You'll play a key role in monitoring platform management, event correlation, and operational tooling, working closely with engineers, analysts, and client teams to maintain and improve monitoring capabilities across critical services. * Managing and optimising Splunk and enterprise monitoring tools * Creating and maintaining event management policies and monitoring rules * Developing Splunk queries (SPL), dashboards, and alerting logic
Job title: Event Management Engineer - Location: Corsham - Duration: 6 months - Rate: £430 per day inside ir35 - SC security clearance is required for this role - The Role - Supporting a key programme within the UK defence environment, we're looking for a Monitoring / Event Management Engineer with strong Splunk and enterprise tooling experience to join the Hosting & Tooling team onsite at MOD Corsham. You'll play a key role in monitoring platform management, event correlation, and operational tooling, working closely with engineers, analysts, and client teams to maintain and improve monitoring capabilities across critical services. * Managing and optimising Splunk and enterprise monitoring tools * Creating and maintaining event management policies and monitoring rules * Developing Splunk queries (SPL), dashboards, and alerting logic
Integration & APIs: REST, event-driven architectures, message brokers, API gateways.
Integration & APIs: REST, event-driven architectures, message brokers, API gateways.
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)
Knowledge of creation of API documentation using YAML specifications.
Knowledge of creation of API documentation using YAML specifications.
Location: Reading, UK - Publish Date: 11/12 /2025 - If you apply, please include your CV. Overview - CHAMP Cargosystems provides the most comprehensive range of integrated IT solutions and distribution services for the air cargo transport chain. Our portfolio spans core management systems, messaging services, and eCargo solutions. These include applications designed to meet customs and security requirements, quality optimization, as well as e-freight and mobility needs. Our products and services are recognized globally under the Cargospot and Traxon brands. We serve over 200 airlines and GSAs, connecting them with approximately 3,000 forwarders and GHAs worldwide. Our solutions help customers, and their clients, adapt to the critical and ongoing changes in air transport logistics and meet the demands of global trade.
Location: Reading, UK - Publish Date: 11/12 /2025 - If you apply, please include your CV. Overview - CHAMP Cargosystems provides the most comprehensive range of integrated IT solutions and distribution services for the air cargo transport chain. Our portfolio spans core management systems, messaging services, and eCargo solutions. These include applications designed to meet customs and security requirements, quality optimization, as well as e-freight and mobility needs. Our products and services are recognized globally under the Cargospot and Traxon brands. We serve over 200 airlines and GSAs, connecting them with approximately 3,000 forwarders and GHAs worldwide. Our solutions help customers, and their clients, adapt to the critical and ongoing changes in air transport logistics and meet the demands of global trade.
This role is focused on the development, optimisation, and ongoing enhancement of our Priority ERP system. As a key member of the Business Systems team, you will take ownership of ERP-related projects and deliver solutions that improve business processes, data integrity, and operational efficiency. Working closely with Business Systems, Finance, Operations, Supply Chain, and other departments, you will be responsible for designing, developing, testing, and maintaining customisations, reports, workflows, and integrations within Priority ERP to support business growth and continuous improvement. * Design, develop, and implement enhancements within the Priority ERP system - o Form Triggers - o Procedures - o Reports - o Documents (HTML and Word formats) o Form Interfaces - o Additional fields within tables and forms
This role is focused on the development, optimisation, and ongoing enhancement of our Priority ERP system. As a key member of the Business Systems team, you will take ownership of ERP-related projects and deliver solutions that improve business processes, data integrity, and operational efficiency. Working closely with Business Systems, Finance, Operations, Supply Chain, and other departments, you will be responsible for designing, developing, testing, and maintaining customisations, reports, workflows, and integrations within Priority ERP to support business growth and continuous improvement. * Design, develop, and implement enhancements within the Priority ERP system - o Form Triggers - o Procedures - o Reports - o Documents (HTML and Word formats) o Form Interfaces - o Additional fields within tables and forms
Senior Platform Engineer / Go / React / TypeScript / Real Time Data / Location: Wallingford - Oxfordshire (Hybrid) onsite circa once every 4 weeks - Permanent - At Dexory, we are transforming the warehousing and logistics industry through data intelligence. As a Senior Platform Engineer, you will join our Platform Engineering team a versatile group responsible for the internal tooling, infrastructure, and special projects that power our robot fleet and data pipelines. This role is unique; you won't just be building standard web apps, but developing software that interacts with hardware devices and handles complex, real-time data streams across a global fleet of autonomous robots - Any experience within robotics, start up / scale up environments and real time data such as WebRTC, WebSockets, gRPC, and Zenoh desirable - Please apply for more information. Responsibilities / Skills
Senior Platform Engineer / Go / React / TypeScript / Real Time Data / Location: Wallingford - Oxfordshire (Hybrid) onsite circa once every 4 weeks - Permanent - At Dexory, we are transforming the warehousing and logistics industry through data intelligence. As a Senior Platform Engineer, you will join our Platform Engineering team a versatile group responsible for the internal tooling, infrastructure, and special projects that power our robot fleet and data pipelines. This role is unique; you won't just be building standard web apps, but developing software that interacts with hardware devices and handles complex, real-time data streams across a global fleet of autonomous robots - Any experience within robotics, start up / scale up environments and real time data such as WebRTC, WebSockets, gRPC, and Zenoh desirable - Please apply for more information. Responsibilities / Skills
Integration with SFTP, API-based connections, and secure channels
Integration with SFTP, API-based connections, and secure channels
Hands-on Experience working with Business Rules, Client Scripts, UI Policies, UI Scripts, UI Actions, UI Pages, Script Includes, Access Control Lists, API's, Service Portal etc...
Hands-on Experience working with Business Rules, Client Scripts, UI Policies, UI Scripts, UI Actions, UI Pages, Script Includes, Access Control Lists, API's, Service Portal etc...
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Contract Opportunity – Technical Architect - 12 Month Contract
Contract Opportunity – Technical Architect - 12 Month Contract
Stealth IT Consulting Limited
UK
Up to £500 per day Up to £500 (Outside) per day
API Migration | Enterprise Platform Transition - Im supporting a major public-sector digital transformation programme and looking for an experienced Technical Architectto lead a large-scale API migration project. * Lead the architecture for a significant API migration programme - If youre an experienced Technical Architect with proven API migration experience and available for a long-term Outside IR35 engagement, Id be keen to speak with you.
API Migration | Enterprise Platform Transition - Im supporting a major public-sector digital transformation programme and looking for an experienced Technical Architectto lead a large-scale API migration project. * Lead the architecture for a significant API migration programme - If youre an experienced Technical Architect with proven API migration experience and available for a long-term Outside IR35 engagement, Id be keen to speak with you.
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Experience with Gurobi Python API (gurobipy)
Experience with Gurobi Python API (gurobipy)
Mobile Architect (iOS & Android) - £500 Outside
Mobile Architect (iOS & Android) - £500 Outside
Stealth IT Consulting Limited
UK
Up to £500 per day Up to £500 Outside per day
Contract: 12 Months - Day Rate:£500 per day (Outside IR35) Clearance: SC Eligible - Sector:UK Public Sector - Location: Fully Remote (UK-based) Start Date: ASAP - Overview - We are seeking an experienced Mobile Architect to support a large-scale public sector digital transformation programme. The successful candidate will lead mobile solution architecture across iOS and Android, ensuring scalable, secure, and high-performing mobile services. This is a key role within a modern engineering environment, working closely with product teams, developers, and senior stakeholders. Key Responsibilities * Lead the end-to-end mobile architecture across iOS and Android platforms. * Define architectural standards, best practices, and technical direction. * Work closely with development teams to ensure architectural alignment and technical quality.
Contract: 12 Months - Day Rate:£500 per day (Outside IR35) Clearance: SC Eligible - Sector:UK Public Sector - Location: Fully Remote (UK-based) Start Date: ASAP - Overview - We are seeking an experienced Mobile Architect to support a large-scale public sector digital transformation programme. The successful candidate will lead mobile solution architecture across iOS and Android, ensuring scalable, secure, and high-performing mobile services. This is a key role within a modern engineering environment, working closely with product teams, developers, and senior stakeholders. Key Responsibilities * Lead the end-to-end mobile architecture across iOS and Android platforms. * Define architectural standards, best practices, and technical direction. * Work closely with development teams to ensure architectural alignment and technical quality.
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Full Stack Engineer - Outisde IR35 up to £525 - Intial 4 month contract, high chance of extension - I am recruiting for multiple Full Stack Engineers to help our client build scalable, high-performance applications and contribute across both backend and frontend systems. This role involves working on modern production systems, building APIs and services, and collaborating with cross-functional teams to deliver reliable and user-focused products. Key Responsibilities * Build prototypes and evolve them into scalable, production-ready applications * Develop and maintain backend services and APIs in Node/Python * Contribute to frontend development, building responsive and intuitive user interfaces in React * Design and implement data workflows and system integrations * Work with cloud infrastructure and distributed systems
Full Stack Engineer - Outisde IR35 up to £525 - Intial 4 month contract, high chance of extension - I am recruiting for multiple Full Stack Engineers to help our client build scalable, high-performance applications and contribute across both backend and frontend systems. This role involves working on modern production systems, building APIs and services, and collaborating with cross-functional teams to deliver reliable and user-focused products. Key Responsibilities * Build prototypes and evolve them into scalable, production-ready applications * Develop and maintain backend services and APIs in Node/Python * Contribute to frontend development, building responsive and intuitive user interfaces in React * Design and implement data workflows and system integrations * Work with cloud infrastructure and distributed systems
Job Title: Java Developer - Rate: £400 (InsideIR35) Duration: 12 Months - Location: Remote - Clearance: BPSS - Stages: 1 Stage - Must Have Government Experience - Key Responsibilities * Design, develop, and maintain Java applications in line with digital and engineering standards * Build and supportmicroservicesandRESTful APIs * Collaborate with product owners, designers, testers, and DevOps engineers in agile teams * Write clean, maintainable, and well-tested code (TDD/BDD where applicable) * Participate in code reviews and contribute to continuous improvement * Ensure applications meetsecurity, accessibility, and performancestandards * Troubleshoot and resolve defects across development and production environments * Support CI/CD pipelines and automated deployment processes - Essential Skills & Experience * Strong commercial experience withJava (Java 8+)
Job Title: Java Developer - Rate: £400 (InsideIR35) Duration: 12 Months - Location: Remote - Clearance: BPSS - Stages: 1 Stage - Must Have Government Experience - Key Responsibilities * Design, develop, and maintain Java applications in line with digital and engineering standards * Build and supportmicroservicesandRESTful APIs * Collaborate with product owners, designers, testers, and DevOps engineers in agile teams * Write clean, maintainable, and well-tested code (TDD/BDD where applicable) * Participate in code reviews and contribute to continuous improvement * Ensure applications meetsecurity, accessibility, and performancestandards * Troubleshoot and resolve defects across development and production environments * Support CI/CD pipelines and automated deployment processes - Essential Skills & Experience * Strong commercial experience withJava (Java 8+)
Scala Developer – 12-Month Contract (Outside IR35)
Scala Developer – 12-Month Contract (Outside IR35)
Stealth IT Consulting Limited
UK
£450 per day £450 per day (Outside IR35)
£450 per day Fully Remote (UK-based) Occasional Out-of-Hours Work Required Im supporting a long-term programme looking for an experienced Scala Developer to join a high-performing engineering team on a 12-month Outside IR35 contract. * Strong commercial experience with Scala * Experience building high-quality, scalable backend services * Exposure to microservices, REST APIs, functional programming * Strong understanding of CI/CD and modern engineering practices * Cloud experience (AWS ideally) * Able to support occasional out-of-hours work when required?? * £450/day (Outside IR35) * 12 months * Remote * Immediate interviews & quick onboarding If youre available and interested, drop me a message or send over your CV.
£450 per day Fully Remote (UK-based) Occasional Out-of-Hours Work Required Im supporting a long-term programme looking for an experienced Scala Developer to join a high-performing engineering team on a 12-month Outside IR35 contract. * Strong commercial experience with Scala * Experience building high-quality, scalable backend services * Exposure to microservices, REST APIs, functional programming * Strong understanding of CI/CD and modern engineering practices * Cloud experience (AWS ideally) * Able to support occasional out-of-hours work when required?? * £450/day (Outside IR35) * 12 months * Remote * Immediate interviews & quick onboarding If youre available and interested, drop me a message or send over your CV.
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Knowledge and experience in modern API-driven web architectures.
Knowledge and experience in modern API-driven web architectures.
Written and maintained code that interfaces with the Kubernetes API, such as operators, controllers, add-ons, etc.
Written and maintained code that interfaces with the Kubernetes API, such as operators, controllers, add-ons, etc.
API Interaction: Familiarity with APIs, particularly in Python
API Interaction: Familiarity with APIs, particularly in Python
Troubleshoot API connections, reviewing payloads, authentication, and performance to maintain stability.
Troubleshoot API connections, reviewing payloads, authentication, and performance to maintain stability.