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19 freelance software developer jobs found in London

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London United Kingdom freelance software developer
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Contract Spy
Mar 19, 2026
Hourly/Freelance
AI-Enabled Fullstack Developer at Future Works, Remote, £Freelance Rate
Contract Spy Remote (London, UK)
Description Future Works is searching for a results-driven, AI-Enabled Fullstack Engineer with strong end-to-end experience building custom software solutions. In this role, you will own the development and delivery of scalable, production-grade applications, from architecture through deployment, ensuring solutions are aligned with client requirements and business objectives.   Working within an agentic engineering environment, you will collaborate closely with product managers, designers, and stakeholders to translate business goals into robust technical implementations. By leveraging modern AI-assisted development tools, you will increase the speed and quality of delivery while maintaining strong engineering standards and architectural discipline.   What You’ll Do Design and build production-grade applications with React and Next.js Translate product and client requirements into structured implementation plans...
Contract Spy
Mar 16, 2026
Duration not stated
Delphi Developer at Test Yantra Software Solutions Private Limited, London, £500 per day
£500 per day
Contract Spy London, UK
Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...
Contract Spy
Mar 10, 2026
Duration not stated
Power Platform Developer at Test Yantra, London, £300-£330 per day
£300 - £330 per day
Contract Spy London, UK
Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day
Contract Spy
Mar 10, 2026
Hourly/Freelance
Web Developer- AI Trainer at DataAnnotation, Remote, From £29.61 an hour
£200 - £240 per day
Contract Spy Remote (London, UK)
Full job description Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient  Web Developer  to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some...
Contract Spy
Mar 05, 2026
Duration not stated
D365 Developer at Test Yantra Software Solutions Private Limited, London, £380-£400 per day
£380 - £400 per day
Contract Spy London, UK
About the Role The Dynamics 365 Developer reports into the Complex Case Management Team DevOps Lead. The role will have a close working connection with IT teams, Partners/3rd parties, Operational Teams and Service Management. Responsibilities · Agile Practices: Integrate and support with agile based product development ceremonies such as sprint planning, standups, retrospectives and backlog grooming. · Solution Design and Development: Lead the design and development of custom solutions within Dynamics 365 and Power Platform, ensuring they meet business needs and align with best practices. · System Integration: Integrate Dynamics 365 with other systems and applications, ensuring seamless data flow and process automation. · Customization and Configuration: Customise and configure Dynamics 365 and Power Platform applications to meet specific business requirements. · Technical Leadership: Provide technical guidance and mentorship to junior developers and other team...
Contract Spy
Mar 05, 2026
Duration not stated
UI/UX Developer with GDS at Test Yantra Software Solutions Private Limited, London, £360-£400 per day
£360 - £400 per day
Contract Spy London, UK
Essential Skills & Experience: · Proven experience in UI/UX design for self-service platforms or similar digital products. · Proficiency in design tools such as Figma, Adobe XD, or Sketch. Strong knowledge of responsive design principles and web/mobile best practices. · Experience conducting user research and usability testing to drive design improvements. · Familiarity with accessibility standards (e.g., WCAG 2.1) and inclusive design principles. · Ability to work in an Agile environment, delivering iterative design solutions in collaboration with cross-functional teams. · Excellent communication skills to articulate design decisions and gather stakeholder feedback effectively Familiarity with GDS Service Standards and the Digital Service Assessment process Work with clients to design and develop digital services that are user-friendly, accessible, and compliant with GDS standards. Lead the development of service blueprints, user journeys, and wireframes. Advise...
Contract Spy
Mar 03, 2026
Duration not stated
Power Platform Developer at Test Yantra Software Solutions Private Limited, London, £300-£330 per day
£300 - £330 per day
Contract Spy London, UK
Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day
Contract Spy
Mar 02, 2026
Duration not stated
Delphi Developer at Test Yantra Software Solutions Private Limited, London, £500 per day
£500 per day
Contract Spy London, UK
Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...
Contract Spy
Feb 26, 2026
Duration not stated
UI/UX Developer with GDS at Test Yantra Software Solutions Private Limited, London, £360-£400 per day
£360 - £400 per day
Contract Spy London, UK
Essential Skills & Experience: · Proven experience in UI/UX design for self-service platforms or similar digital products. · Proficiency in design tools such as Figma, Adobe XD, or Sketch. Strong knowledge of responsive design principles and web/mobile best practices. · Experience conducting user research and usability testing to drive design improvements. · Familiarity with accessibility standards (e.g., WCAG 2.1) and inclusive design principles. · Ability to work in an Agile environment, delivering iterative design solutions in collaboration with cross-functional teams. · Excellent communication skills to articulate design decisions and gather stakeholder feedback effectively Familiarity with GDS Service Standards and the Digital Service Assessment process Work with clients to design and develop digital services that are user-friendly, accessible, and compliant with GDS standards. Lead the development of service blueprints, user journeys, and wireframes. Advise...
Contract Spy
Mar 19, 2026
Hourly/Freelance
CompTIA Tutor at LONDON VESTA COLLEGE, London, £20-£25 per hour
Contract Spy London, UK
Freelance / Hybrid / Flexible We are seeking an experienced and knowledgeable Freelance CompTIA Tutor to deliver high-quality, engaging training for CompTIA qualifications. Join our forward-thinking training organisation and support learners in developing the technical knowledge and professional skills required for entry-level and intermediate IT support and infrastructure roles. Role Overview You will deliver a blend of practical and theoretical training aligned to CompTIA certifications (such as ITF+, A+, Network+, Security+, or equivalent, depending on programme requirements). Teaching areas will include IT hardware and software fundamentals, operating systems (Windows/Linux), networking concepts, cybersecurity principles, troubleshooting methodologies, incident and problem management, customer support, and professional behaviours. You will work with small learner cohorts (up to 10 learners), supporting learners to build job-ready technical skills, industry-recognised...
Contract Spy
Mar 18, 2026
Duration not stated
Software engineer (JAVA , Python , Golang) at Test Yantra Software Solutions Private Limited, London, £350-£370 per day
£350 - £370 per day
Contract Spy London, UK
We are urgently looking for experienced candidates with strong hands-on Java development skills and design experience. While an architect title is not mandatory, we are particularly interested in profiles of senior developers with solid technical expertise. Required Core Skills: - Java - Python - GoLang -Design, develop, and maintain high-quality Java applications. -Write clean, efficient, and well-documented code. -Perform code reviews and optimize existing codebases. -Ensure application performance and reliability. -Develop and maintain automated tests to ensure code quality. -Work with CI/CD pipelines to streamline the development and deployment process. Job Types: Full-time, Freelance Pay: £350.00-£370.00 per day Schedule: Monday to Friday Experience: Java: 7 years (required) Python: 3 years (required) Go: 2 years (required)
Contract Spy
Mar 12, 2026
Duration not stated
CompTIA Tutor (Freelance) at LONDON VESTA COLLEGE, London, £20-£25 per hour
Contract Spy London, UK
Freelance / Hybrid / Flexible We are seeking an experienced and knowledgeable Freelance CompTIA Tutor to deliver high-quality, engaging training for CompTIA qualifications. Join our forward-thinking training organisation and support learners in developing the technical knowledge and professional skills required for entry-level and intermediate IT support and infrastructure roles. Role Overview You will deliver a blend of practical and theoretical training aligned to CompTIA certifications (such as ITF+, A+, Network+, Security+, or equivalent, depending on programme requirements). Teaching areas will include IT hardware and software fundamentals, operating systems (Windows/Linux), networking concepts, cybersecurity principles, troubleshooting methodologies, incident and problem management, customer support, and professional behaviours. You will work with small learner cohorts (up to 10 learners), supporting learners to build job-ready technical skills, industry-recognised...
Contract Spy
Mar 11, 2026
Duration not stated
Software engineer (JAVA , Python , Golang) at Test Yantra Software Solutions Private Limited, London, £350-£370 per day
£350 - £370 per day
Contract Spy London, UK
We are urgently looking for experienced candidates with strong hands-on Java development skills and design experience. While an architect title is not mandatory, we are particularly interested in profiles of senior developers with solid technical expertise. Required Core Skills: - Java - Python - GoLang -Design, develop, and maintain high-quality Java applications. -Write clean, efficient, and well-documented code. -Perform code reviews and optimize existing codebases. -Ensure application performance and reliability. -Develop and maintain automated tests to ensure code quality. -Work with CI/CD pipelines to streamline the development and deployment process. Job Types: Full-time, Freelance Pay: £350.00-£370.00 per day Schedule: Monday to Friday Experience: Java: 7 years (required) Python: 3 years (required) Go: 2 years (required)
Contract Spy
Mar 10, 2026
Duration not stated
Sales Director (IT Consultant) — Commission Only Uncapped Earnings (£100k–£300k per annum) at Geecon Global Limited, London E14, £Commission Only
Contract Spy London E14, UK
Sales Director – AI, CRM & System Integrations (Commission Only)£100,000 – £300,000+ OTE Uncapped Earnings Self-Employed Company: Geecon Global Limited Industry: IT Consultancy AI Automation CRM Integration System Integration Location: London (Preferred) UK-Wide Remote Optional Canary Wharf Meet-Ups Job Type: Self-Employed Commission Only Flexible / Remote Expected Earnings: £100,000 – £300,000+ per year (Uncapped Commission) About Geecon Global: Geecon Global Limited is a UK-based IT consultancy specialising in: AI Automation CRM Implementation & Integration System Integration Bespoke Software Development Data Platforms & Digital Transformation We help businesses automate operations, integrate systems, and unlock growth using AI-driven technologies . Our clients range from SMEs to large enterprises across the UK and internationally . We are now expanding our...
Contract Spy
Mar 05, 2026
Hourly/Freelance
CompTIA Tutor at LONDON VESTA COLLEGE, London, £20-£25 per hour
Contract Spy London, UK
Freelance / Hybrid / Flexible We are seeking an experienced and knowledgeable Freelance CompTIA Tutor to deliver high-quality, engaging training for CompTIA qualifications. Join our forward-thinking training organisation and support learners in developing the technical knowledge and professional skills required for entry-level and intermediate IT support and infrastructure roles. Role Overview You will deliver a blend of practical and theoretical training aligned to CompTIA certifications (such as ITF+, A+, Network+, Security+, or equivalent, depending on programme requirements). Teaching areas will include IT hardware and software fundamentals, operating systems (Windows/Linux), networking concepts, cybersecurity principles, troubleshooting methodologies, incident and problem management, customer support, and professional behaviours. You will work with small learner cohorts (up to 10 learners), supporting learners to build job-ready technical skills, industry-recognised...
Contract Spy
Mar 03, 2026
Hourly/Freelance
IT Support Specialist at IN2, London, £Freelance Rate
Contract Spy London, UK
Freelance IT Support Specialist IT - London, London, City of   About IN2   IN2 is an award-winning specialist communications, development, and research company dedicated to creating positive change for communities in rapidly changing environments. We use innovative and engaging two-way communications to create impact across the full spectrum of geo-political and socio-economic issues, including global security, international development, business transformation, and climate change.   IN2 combines a global geopolitical outlook with a rich understanding of local grassroots sentiment to help clients develop, deliver, and measure engagement campaigns that connect our clients with their intended audiences in a language, manner, and medium that feels natural to them.   With our track record of delivering culturally sensitive campaigns in challenging and higher-risk environments around the world, IN2 has become a trusted...
Contract Spy
Mar 02, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra Software Solutions Private Limited, London, £400 per day
£400 per day
Contract Spy London, UK
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial instruments and systems. Bonus...
Contract Spy
Feb 26, 2026
Duration not stated
CompTIA Tutor at LONDON VESTA COLLEGE, London, £20-£25 per hour
Contract Spy London, UK
Freelance / Hybrid / Flexible We are seeking an experienced and knowledgeable Freelance CompTIA Tutor to deliver high-quality, engaging training for CompTIA qualifications. Join our forward-thinking training organisation and support learners in developing the technical knowledge and professional skills required for entry-level and intermediate IT support and infrastructure roles. Role Overview You will deliver a blend of practical and theoretical training aligned to CompTIA certifications (such as ITF+, A+, Network+, Security+, or equivalent, depending on programme requirements). Teaching areas will include IT hardware and software fundamentals, operating systems (Windows/Linux), networking concepts, cybersecurity principles, troubleshooting methodologies, incident and problem management, customer support, and professional behaviours. You will work with small learner cohorts (up to 10 learners), supporting learners to build job-ready technical skills, industry-recognised...
Contract Spy
Feb 25, 2026
Hourly/Freelance
IT Technician Tutor at LONDON VESTA COLLEGE, London, £20-£25 per hour
Contract Spy London, UK
Freelance / Hybrid / Flexible We’re seeking an experienced and knowledgeable Freelance IT Technician Tutor to deliver high-quality, engaging training for IT Technician qualifications , including the Digital Support Technician Level 3 Apprenticeship Standard . Join our forward-thinking training organisation and support learners in developing the technical and professional skills required for IT support and digital service roles. Role Overview You’ll deliver a mix of practical and theoretical training aligned to IT Technician frameworks and the Digital Support Technician Level 3 Apprenticeship Standard . Teaching areas will include IT hardware and software support, operating systems (Windows/Linux), networking fundamentals, cloud basics, cybersecurity principles, incident and problem management, customer support, and professional behaviours . You’ll work with small learner cohorts (up to 10 learners), supporting apprentices and learners to...
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