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32 api developer jobs found

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United Kingdom api developer £300 - £400
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Contract Spy
Mar 27, 2026
Duration not stated
Senior Android Developer at Scrumconnect Consulting, Staines-upon-Thames TW18, £400-£425 per day
£400 - £425 per day
Contract Spy Staines TW18, UK
400-425 inside ir 35 City Staines Province Surrey Country United Kingdom Postal Code TW18 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior Android Developer to design, build, and maintain high-quality native Android applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within...
Contract Spy
Mar 27, 2026
Duration not stated
Senior IOS Developer at Scrumconnect Consulting, Staines-upon-Thames TW18, £400-£425 per day
£400 - £425 per day
Contract Spy Staines TW18, UK
  400-425 inside ir 35 City Staines Province Surrey Country United Kingdom Postal Code TW18 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior iOS Developer to design, build, and maintain high-quality native iOS applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within...
Contract Spy
Mar 20, 2026
Duration not stated
Senior Android Developer at Scrumconnect Consulting, Staines-upon-Thames TW18, £400-£425 per day
£400 - £425 per day
Contract Spy Staines TW18, UK
City Staines Province Surrey Country United Kingdom Postal Code TW18 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior Android Developer to design, build, and maintain high-quality native Android applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within structured and governed...
Contract Spy
Mar 20, 2026
Duration not stated
Senior IOS Developer at Scrumconnect Consulting, Staines-upon-Thames TW18, £400-£425 per day
£400 - £425 per day
Contract Spy Staines TW18, UK
  400-425 inside ir 35 City Staines Province Surrey Country United Kingdom Postal Code TW18 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to deliver innovative digital services that matter. Role Overview We are looking for a Senior iOS Developer to design, build, and maintain high-quality native iOS applications for a UK government client. You will work as part of a multidisciplinary agile team, delivering user-centred mobile experiences that meet Government Digital Service (GDS) standards and accessibility requirements. This is a hands-on technical role operating within...
Contract Spy
Mar 27, 2026
Duration not stated
System Administration Tooling at Omnis Intelligence Limited, United Kingdom, £250-£300 per day
£250 - £300 per day
Contract Spy United Kingdom
Introduction The organisation develops and operates a suite of digital platforms that support the management and analysis of operational data within the automotive sector. These platforms integrate information from multiple sources and provide tools that enable manufacturers, dealer groups, and operational teams to work with data effectively. As the platform continues to evolve, we are developing a set of internal system administration tools that allow authorised users to manage configuration, reference data, assets, and platform access in a structured and secure way. These tools form an important part of the platform infrastructure, enabling operational teams to maintain system configuration, manage users and permissions, and administer key platform data without requiring direct database access. Role Overview This role focuses on designing and developing internal system administration tooling that supports the operation and management of the organisation’s...
Contract Spy
Mar 25, 2026
Duration not stated
AI Developer/Lead – Azure at IIT Software, Leeds, £400 per day
£400 per day
Contract Spy Leeds, UK
We are urgently looking for AI Developer / Lead – Azure Role: AI Developer / Lead – Azure Location: Leeds UK, 2 days per week in office Job Type: Contract Inside IR35, Rate based on profile. Experience Level: 7+ years Understanding of core AI concepts including LLMs, prompt engineering, automation, decision support and responsible AI. Experience assessing data quality, readiness, lineage and feasibility for AI‑enabled solutions. Ability to design end‑to‑end AI workflows including prompts, orchestration, guardrails and human‑in‑the‑loop models. Skilled in user research, facilitation, co‑design and requirements‑gathering workshops. Working knowledge of Copilot and Power Platform as well as Service Design/UX. Working knowledge of Microsoft Azure AI Fundamentals Excellent stakeholder management and communication skills, including senior‑level engagement. Commercial awareness and a...
Contract Spy
Mar 18, 2026
Duration not stated
AI Developer/Lead – Azure at IIT Software, Leeds, £400 per day
£400 per day
Contract Spy Leeds, UK
We are urgently looking for AI Developer / Lead – Azure Role: AI Developer / Lead – Azure Location: Leeds UK, 2 days per week in office Job Type: Contract Inside IR35, Rate based on profile. Experience Level: 7+ years Understanding of core AI concepts including LLMs, prompt engineering, automation, decision support and responsible AI. Experience assessing data quality, readiness, lineage and feasibility for AI‑enabled solutions. Ability to design end‑to‑end AI workflows including prompts, orchestration, guardrails and human‑in‑the‑loop models. Skilled in user research, facilitation, co‑design and requirements‑gathering workshops. Working knowledge of Copilot and Power Platform as well as Service Design/UX. Working knowledge of Microsoft Azure AI Fundamentals Excellent stakeholder management and communication skills, including senior‑level engagement. Commercial awareness and a value‑driven...
Contract Spy
Mar 11, 2026
Duration not stated
AI Developer / Lead – Azure - In Leeds UK at IIT Software, Leeds, £400 per day
£400 per day
Contract Spy Leeds, UK
We are urgently looking for AI Developer / Lead – Azure Role: AI Developer / Lead – Azure Location: Leeds UK, 2 days per week in office Job Type: Contract Inside IR35, Rate based on profile. Experience Level: 7+ years Understanding of core AI concepts including LLMs, prompt engineering, automation, decision support and responsible AI. Experience assessing data quality, readiness, lineage and feasibility for AI‑enabled solutions. Ability to design end‑to‑end AI workflows including prompts, orchestration, guardrails and human‑in‑the‑loop models. Skilled in user research, facilitation, co‑design and requirements‑gathering workshops. Working knowledge of Copilot and Power Platform as well as Service Design/UX. Working knowledge of Microsoft Azure AI Fundamentals Excellent stakeholder management and communication skills, including senior‑level engagement. Commercial awareness and a value‑driven mindset. Familiarity with responsible AI and risk‑aware...
Contract Spy
Apr 02, 2026
up to 6 Months
Software Engineer - Java at Pulselive, London Kennington, 3 Months+, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy Kennington, London, UK
Senior Software Engineer – Java (Contractor) Outside IR35 Rate: £400 - £500 per day Duration: 3 Months Plus Start Date: ASAP   As a Senior Software Engineer (Java) – Contractor at Pulselive, you’ll be focused on delivering robust, high-performance backend services and APIs that power digital experiences for millions of sports fans globally. This role is ideal for an experienced, hands-on engineer with strong Java and Spring expertise who thrives in a collaborative and fast-paced delivery environment. You’ll work closely with cross-functional teams to build, integrate, and optimize systems that handle real-time sports data, video, and live commentary. This position is project- and delivery-focused, with no line management or people-leadership responsibilities required.   Key Responsibilities: Design and develop scalable backend systems using Java and Spring Boot...
Contract Spy
Apr 02, 2026
up to 6 Months
Software Engineer - Java at Pulselive, Basingstoke, 3 Months+, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy Basingstoke, UK
Senior Software Engineer – Java (Contractor) Outside IR35 Rate: £400 - £500 per day Duration: 3 Months Plus Start Date: ASAP   As a Senior Software Engineer (Java) – Contractor at Pulselive, you’ll be focused on delivering robust, high-performance backend services and APIs that power digital experiences for millions of sports fans globally. This role is ideal for an experienced, hands-on engineer with strong Java and Spring expertise who thrives in a collaborative and fast-paced delivery environment. You’ll work closely with cross-functional teams to build, integrate, and optimize systems that handle real-time sports data, video, and live commentary. This position is project- and delivery-focused, with no line management or people-leadership responsibilities required.   Key Responsibilities: Design and develop scalable backend systems using Java and Spring Boot...
Contract Spy
Mar 30, 2026
Duration not stated
Golang - Software Engineer at Test Yantra Software Solutions Private Limited, Sheffield, £400-£500 per day
£400 - £500 per day
Contract Spy Sheffield, UK
Key Accountabilities Responsibilities will include: · Design, develop and maintain highly available, secure, and performant backend REST API services along with frontend client using Python , Golang, Docker and Cloud-Native services . · Implement and manage database schema changes using Liquibase , ensuring alignment with compliance and audit standards. · Collaborate closely with Architecture and DevOps teams to enhance, maintain and mature Product capabilities/features. · Perform root cause analysis and implement solutions for incidents and performance bottlenecks. Qualifications and experience The ideal candidate for this role will have the below experience and qualifications: · Bachelor’s or Master’s degree in Computer Science or equivalent industry experience. · Comes from Software Engineering background with infrastructure experience. · 5+ years of development experience...
Contract Spy
Mar 30, 2026
Duration not stated
Senior Performance Tester (SC Cleared/SC Eligible) at Scrumconnect Consulting, London EC1A, £275-£300 per day (Outside IR35)
£275 - £300 per day
Contract Spy London EC1A, UK
275-300 Outside IR 35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter.   Role Overview We are looking for a Senior Performance Tester with Active SC to deliver hands-on load and performance testing across large-scale digital services and backend applications, with experience of working with cloud-based distributed services. This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and...
Contract Spy
Mar 30, 2026
Duration not stated
Lead Performance Tester (SC Cleared/SC Eligible) at Scrumconnect Consulting, London, £400-£450 per day (Outside IR35)
£400 - £450 per day
Contract Spy London, UK
Salary 400-450 outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. We are driven by user-centred design, agile delivery, and a commitment to building innovative digital services that truly matter.   Role Overview We are seeking a highly skilled Lead Performance Tester (Active SC Cleared) to deliver hands-on load and performance testing across large-scale digital services and backend applications. This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and scalability...
Contract Spy
Mar 30, 2026
Duration not stated
SEO & AI Search Specialist - Digital Visibility & Content at Dukes Education, London, £150-£300 per day
£150 - £300 per day
Contract Spy London, UK
Company Overview Dukes Education Ltd is a family of schools and educators dedicated to providing children with the foundations for an extraordinary life through quality education. Our diverse community includes nurseries, prep schools, senior schools, 6th form colleges, international summer courses, summer camps, and university preparation consultancies. Job Overview We are seeking a experienced SEO and AI Search specialist with strong content experience to improve the digital visibility of a group of international schools and colleges. The role combines technical SEO, AI search optimisation, and content development across multiple school websites. A core objective of this role is to improve the quality, relevance, and discoverability of website content, ensuring it performs well in both traditional search engines and emerging AI-powered search systems. Candidates should have experience creating or directing high-performing SEO content and optimising...
Contract Spy
Mar 26, 2026
up to 6 Months
Front End Developer at UK Robotics, Loughton, 3-6 Months, £315-£425 per day
£315 - £425 per day
Contract Spy Oakwood Hill Industrial Estate, Oakwood Hill, Loughton IG10 3TZ, UK
#### 3 - 6 month contract #### Company Description UK Robotics provides cutting-edge robotics and automation solutions with expertise in turnkey and modular integrated laboratory automation systems. Our flagship product, Revolution, is a dynamic scheduler powering next-generation lab automation in the Life Science industry. Role Description We are seeking a skilled Mid-Level Frontend Engineer with strong expertise in React and modern JavaScript ecosystems to join our growing development team.This role is central to building intuitive, high-performance user interfaces for our cloud platforms and automation systems. You will focus on delivering responsive, scalable, and maintainable frontend applications that power complex scheduling systems.You will collaborate closely with backend, cloud, and robotics engineers to design seamless user experiences that bridge cloud services with real-world laboratory automation systems.This is an opportunity to work at the...
Contract Spy
Mar 25, 2026
Duration not stated
Java Back-End Developer with Azure/AWS at ERP Tech Solutions Ltd, London, £300 per day (Outside IR35)
£300 per day
Contract Spy London, UK
Job Summary We are seeking an experienced Java Back-end Developer specialised in cloud platforms such as Azure and AWS to join our dynamic development team. The successful candidate will be responsible for designing, developing, and maintaining scalable back-end services and APIs, ensuring seamless integration with front-end applications and third-party systems. This role offers an exciting opportunity to work on innovative projects within a collaborative environment, contributing to the realisation of cutting-edge solutions that meet business needs. Responsibilities Liaise with fellow developers Designing and implementing microservices which use the spring boot framework. Working in compliance with the full Software Development Life Cycle. Connecting microservices to interact with databases. Understanding of how streaming technologies work such as Kafka. Build Azure/AWS pipelines Identifying and finding solutions to bugs. Ensure you've...
Contract Spy
Mar 23, 2026
Duration not stated
SEO & AI Search Specialist - Digital Visibility & Content at Dukes Education, London, £150-£300 per day
£150 - £300 per day
Contract Spy London, UK
Company Overview Dukes Education Ltd is a family of schools and educators dedicated to providing children with the foundations for an extraordinary life through quality education. Our diverse community includes nurseries, prep schools, senior schools, 6th form colleges, international summer courses, summer camps, and university preparation consultancies. Job Overview We are seeking a experienced SEO and AI Search specialist with strong content experience to improve the digital visibility of a group of international schools and colleges. The role combines technical SEO, AI search optimisation, and content development across multiple school websites. A core objective of this role is to improve the quality, relevance, and discoverability of website content, ensuring it performs well in both traditional search engines and emerging AI-powered search systems. Candidates should have experience creating or directing high-performing SEO content and optimising websites...
Contract Spy
Mar 23, 2026
Duration not stated
Senior Performance Tester (SC Cleared/SC Eligible) at Scrumconnect Consulting, London EC1A, £275-£300 per day (Outside IR35)
£275 - £300 per day
Contract Spy London EC1A, UK
275-300 Outside IR 35 City London Province Greater London Country United Kingdom Postal Code EC1A Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter.   Role Overview We are looking for a Senior Performance Tester with Active SC to deliver hands-on load and performance testing across large-scale digital services and backend applications, with experience of working with cloud-based distributed services. This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and...
Contract Spy
Mar 23, 2026
Duration not stated
Golang - Software Engineer at Test Yantra Software Solutions Private Limited, Sheffield, £400-£500 per day
£400 - £500 per day
Contract Spy Sheffield, UK
Key Accountabilities Responsibilities will include: · Design, develop and maintain highly available, secure, and performant backend REST API services along with frontend client using Python , Golang, Docker and Cloud-Native services . · Implement and manage database schema changes using Liquibase , ensuring alignment with compliance and audit standards. · Collaborate closely with Architecture and DevOps teams to enhance, maintain and mature Product capabilities/features. · Perform root cause analysis and implement solutions for incidents and performance bottlenecks. Qualifications and experience The ideal candidate for this role will have the below experience and qualifications: · Bachelor’s or Master’s degree in Computer Science or equivalent industry experience. · Comes from Software Engineering background with infrastructure experience. · 5+ years of development experience...
Contract Spy
Mar 20, 2026
Duration not stated
Data Engineer at RedRock Consulting, London Area, £350 per day
£350 per day
Contract Spy London Area, United Kingdom
Contract Data Engineer – AI Applications (Databricks) £350/day | Inside IR35 | 6 Months | Primarily Remote (Occasional London Travel) We’re looking for a Data Engineer to join a multidisciplinary team building AI-powered, client-facing applications . This role will focus on developing and optimising data platforms and pipelines that enable advanced analytics and AI capabilities. You’ll work within an Agile/Scrum delivery team , collaborating with engineers, analysts, and product stakeholders to deliver scalable, high-quality data solutions in a cloud environment. Key Responsibilities Design and build scalable data pipelines to support AI and analytics workloads Develop and deploy AI pipelines in cloud environments Work closely with engineering and product teams to support AI-driven applications Ensure high standards of data quality, performance, and reliability Contribute to delivery within a Scrum-based Agile team Key Skills &...
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