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6 front end developer jobs found in London

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London Duration not stated front end developer
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Contract Spy
Jun 11, 2026
Duration not stated
QA Engineer/Test Lead - MVP Trading Platform at Wagglyn, London Area, £Contractor Rate
Contract Spy London Area, United Kingdom
Role Summary Wagglyn is looking for an experienced QA Engineer / Test Lead to work with the existing engineering team on the testing and release readiness of its MVP trading platform. This is a hands-on contract role for someone who has tested complex financial or real-time systems before. It is not a generic web QA role and not a manual-testing-only role.   Scope The contractor will help define and execute the QA process across the front end, backend services, market data, execution flows, deployment environments and operational readiness. The role involves working with engineering, product and stakeholders to make sure releases are testable, repeatable and safe to promote through UAT and production-like environments. QA here is about proving the system behaves safely when data is live, services reconnect, orders are sent, risk state changes and deployments happen.   Profile ·      Hands-on QA...
Contract Spy
Jun 08, 2026
Duration not stated
Junior Full Stack Java Web Developer at ReachX, London, £Freelance Rate
Contract Spy London, UK
Job Title: Junior Full Stack Java Web Developer (Hybrid Contractor) About ReachX ReachX is at the forefront of the digitalization of financial services and is a leader in the future of work. ReachX services are specifically designed for Institutional Investors, Corporates, and Professional Services Firms. Our tech platform will enable you to access more than 4000 vetted Advisors and connect with more than 500 Institutional Investors active in private markets. Our mission is to make financial services more efficient and generate unique growth opportunities for our Clients, Partners, and Advisors. Examples of our Institutional Investors include Private Equity, VC, and Family offices predominantly based across the UK and Europe, and projects are typically paid on a day rate or through a success or transaction fee. Interim M&A Advisors might also have a background as: Corporate Finance Advisors CFOs and Finance Directors Investment...
Contract Spy
Jun 12, 2026
Duration not stated
Senior Java Developer at Adaptive, London, £Contractor Rate (Outside IR35)
Contract Spy London, UK
London Senior Java Developer London - (Contractors Outside IR35) In London WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the world’s leading investment banks, investment managers, fintech and capital market service providers. With a global reach with offices in London, New York, Barcelona, Manila and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Java Developer services on an exciting project!   THE SERVICES REQUIRED: A JVM lover who really enjoys working with the latest technologies and design patterns Eager to solve complex technical...
Contract Spy
Jun 05, 2026
Duration not stated
Senior Java Developer at Adaptive, London, £Contractor Rate (Outside IR35)
Contract Spy London, UK
Senior Java Developer London – (Contractors Outside IR35) In London WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the world’s leading investment banks, investment managers, fintech and capital market service providers. With a global reach with offices in London, New York, Barcelona, Manila and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Java Developer services on an exciting project!   THE SERVICES REQUIRED: A JVM lover who really enjoys working with the latest technologies and design patterns Eager to solve complex technical...
Contract Spy
May 29, 2026
Duration not stated
Senior Java Developer at Adaptive, London, £Contractor Rate (Outside IR35)
Contract Spy London, UK
Senior Java Developer London – (Contractors Outside IR35) In London WE ARE: At Adaptive, we are a financial consulting firm that partners with capital, commodity, and digital market participants. We value differentiation through technology. Our experienced teams design and deliver complex front-office technology solutions using our proven accelerators to create long-term competitive advantage. Our clients include the world’s leading investment banks, investment managers, fintech and capital market service providers. With a global reach with offices in London, New York, Barcelona, Manila and Montreal, we have a proven track record of delivering powerful, elegant and intuitive trading technology solutions. We are now looking for Java Developer services on an exciting project!   THE SERVICES REQUIRED: A JVM lover who really enjoys working with the latest technologies and design patterns Eager to solve complex technical...
Contract Spy
May 26, 2026
Duration not stated
Service Designer at Scrumconnect, London, £400-£500 per day (Outside IR35)
£400 - £500 per day
Contract Spy London, UK
About Scrumconnect At Scrumconnect, we are a people-first digital consultancy partnering with government and private sector clients to design and deliver user-centred digital services that make a real difference. Our multidisciplinary teams collaborate to solve complex challenges, create inclusive digital experiences, and improve public services for everyone. We value curiosity, creativity, and collaboration, and we are passionate about building solutions that matter. About the Role We are seeking an experienced Service Designer to create user-centred services that deliver meaningful, efficient, and accessible experiences across both digital and physical touchpoints. This role involves working closely with multidisciplinary teams to design and refine services that meet user needs and organisational goals. Key Responsibilities Design holistic, user-centred experiences across products, systems, services, applications, devices, and employee journeys...
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