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26 front end developer jobs found in London

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London United Kingdom front end developer
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Contract Spy
Apr 09, 2026
Duration not stated
Full Stack Developer (React, Java, Spring) at Deloitte, London, £Contract Rate
Contract Spy London, UK
Job Title: Full Stack Developer (Java, Spring, React) - contract Location: London Hybrid. Travel to the London office on 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35)   Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte.   The Role We are looking for an experienced Full Stack Developers to work in the Technology and Transformation Team at Deloitte. You will work with one of our global financial services clients. This position requires an...
Contract Spy
Apr 08, 2026
Duration not stated
Full Stack Developer at School Prom Car Hire, London, £Contract Rate
Contract Spy London, UK
About School Prom Car Hire School Prom Car Hire is a premium luxury transport and travel platform operating across the UK and internationally. We specialise in limousine hire, yacht charters, private aviation, chauffeur services, airport transfers, and high-end event transport. Our growth strategy is built on technical excellence, search dominance, automation, and scalable digital infrastructure. We are hiring a Senior Full-Stack Web Developer who understands how engineering decisions directly impact SEO performance, scalability, and long-term growth. The Role This position requires a true full-stack engineer — not just a WordPress developer. You will take ownership of our entire digital ecosystem, ensuring it is technically sound, search-optimised, secure, automated, and built for algorithm resilience. What You’ll Be Responsible For Full-Stack Development Front-end and back-end development Building scalable web applications...
Contract Spy
Apr 02, 2026
Duration not stated
.Net Developer at P92 Group UK Limited, London EC2A, £450-£750 per day
£450 - £750 per day
Contract Spy London EC2A, UK
Job Overview We are currently seeking a .NET Developer for a contractor role based in our UK office. The .NET Developer will be designing, developing, and testing software applications. Additionally, they will maintain existing codebases, troubleshoot issues, and collaborate with cross-functional teams. P92 has been appointed as an External Software Development Partner. The ideal candidate will have a strong technical background, with expertise in modern .Net stack, and possess a systems-thinking approach to understand the entire process comprehensively. The ideal candidate will be an experienced .Net contractor that is able to switch context quickly and hit the ground running. We expect a positive attitude, along with a high level of commitment and responsibility, to be agile and dedicated to high quality work. Education BSc / MSc degree in Computer Science, Information Engineering or a related subject or equivalent experience Experiences Minimum 3-5...
Contract Spy
Apr 01, 2026
6 Months or more
Full Stack Developer (React & .Net) at Platinum Group, London, 9 Months, to £650 per day
£550 - £650 per day
Contract Spy London, UK
Full Stack (React & .NET) Developer - 9 months Contract Upto £650 Per Day Inside Location: London/Hybrid About the Role: Our capital markets practice is seeking a skilled and motivated Full Stack Developer with strong experience in React and .NET technologies and a passion for building scalable, cloud-native applications to work with a leading investment bank. You will be responsible for designing, developing, and maintaining both Front End and Back End components of our clients enterprise-grade solutions, with a strong emphasis on Azure cloud services. Split is 75% Front End - 25% Back End - Mainly UI Focused. 2-3 Days a week on site in London. Key Responsibilitie Develop and extend Front End UI (React/Node.js) to improve operational visibility Refactor and enhance the data ingestion engine to improve flexibility, configurability, and auditability Build and maintain independent data pipelines to pull data from multiple systems...
Contract Spy
Mar 31, 2026
Duration not stated
Senior Software/Data Engineer at Softwire, Remote/London, £500-£585 per day (Outside IR35)
£500 - £585 per day
Contract Spy Remote (London, UK)
Senior Software Developer / Data Engineer - (Contract Outside IR35)   In brief   We’re looking for well-rounded software developers with experience in data engineering, with a proven ability to tackle complex data challenges, make an excellent impression on clients, and have a high impact on the output of your entire team. We provide a supportive environment with a strong focus on individual career progression, where you will have both the mentorship and project opportunities you need to develop your technical skills. You’ll work in a team alongside other talented developers and data engineers, supported by a Technical Lead. Projects span a range of sizes and multiple sectors and technologies.   The role   Experience and qualifications   You have 4+ years’ experience and a breadth & depth of technical knowledge & expertise, particularly in data engineering, and can solve technical...
Contract Spy
Mar 30, 2026
Duration not stated
Full Stack Developer at School Prom Car Hire, London, £Contract Rate
Contract Spy London, UK
About School Prom Car Hire School Prom Car Hire is a premium luxury transport and travel platform operating across the UK and internationally. We specialise in limousine hire, yacht charters, private aviation, chauffeur services, airport transfers, and high-end event transport. Our growth strategy is built on technical excellence, search dominance, automation, and scalable digital infrastructure. We are hiring a Senior Full-Stack Web Developer who understands how engineering decisions directly impact SEO performance, scalability, and long-term growth. The Role This position requires a true full-stack engineer — not just a WordPress developer. You will take ownership of our entire digital ecosystem, ensuring it is technically sound, search-optimised, secure, automated, and built for algorithm resilience. What You’ll Be Responsible For Full-Stack Development Front-end and back-end development Building scalable web applications...
Contract Spy
Mar 27, 2026
6 Months or more
Full Stack Developer (React & C#) at Platinum Group, London/Remote, 9 Months, £Contract Rate
Contract Spy Hybrid (London, UK)
Full Stack (React & .NET) Developer - 9 months Contract Location: London/Hybrid About the Role: Our capital markets practice is seeking a skilled and motivated Full Stack Developer with strong experience in React and .NET technologies and a passion for building scalable, cloud-native applications to work with a leading investment bank. You will be responsible for designing, developing, and maintaining both Front End and Back End components of our clients enterprise-grade solutions, with a strong emphasis on Azure cloud services. Split is 80% Front End - 20% Back End - Mainly UI Focused. 2-3 Days a week on site in London. Key Responsibilities Refactor and enhance the data ingestion engine to improve flexibility, configurability, and auditability Build and maintain independent data pipelines for multiple HR systems (Workday, FieldGlass, VNDLY) Develop and extend Front End UI (React/Node.js) to improve operational visibility Support and...
Contract Spy
Mar 26, 2026
Duration not stated
Java Full-Stack Lead Developer at Synechron, London, £Contract Rate
Contract Spy London, UK
About Synechron: Synechron is a leading digital transformation consulting firm dedicated to delivering innovative technology solutions within banking, financial services, and insurance. We thrive on engineering excellence, collaboration, and a passion for cutting-edge technologies. Job Location: London (Hybrid - 3 days in the office) About the role: We are seeking a highly experienced (10+ years ) Java Full-Stack Lead Developer with strong system architecture expertise to lead the design and delivery of scalable, distributed systems. This is a hands-on leadership role where you will define architecture, guide a globally distributed engineering team, and ensure high standards in both Back End and Front End development. Key Responsibilities Lead the architecture design of complex, scalable and high-availability systems Make critical decisions on system design, tech stack, and trade-offs Drive end-to-end development across Back End and Front End...
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 24, 2026
Duration not stated
Junior Full Stack Java Web Developer at ReachX, London, £Contractor 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 Banking...
Contract Spy
Mar 23, 2026
Duration not stated
Full Stack Developer at School Prom Car Hire, London, £Contract Rate
Contract Spy London, UK
About School Prom Car Hire School Prom Car Hire is a premium luxury transport and travel platform operating across the UK and internationally. We specialise in limousine hire, yacht charters, private aviation, chauffeur services, airport transfers, and high-end event transport. Our growth strategy is built on technical excellence, search dominance, automation, and scalable digital infrastructure. We are hiring a Senior Full-Stack Web Developer who understands how engineering decisions directly impact SEO performance, scalability, and long-term growth. The Role This position requires a true full-stack engineer — not just a WordPress developer. You will take ownership of our entire digital ecosystem, ensuring it is technically sound, search-optimised, secure, automated, and built for algorithm resilience. What You’ll Be Responsible For Full-Stack Development Front-end and back-end development Building scalable web applications...
Contract Spy
Apr 13, 2026
Duration not stated
API/Integration Architect at DADA Enterprises Ltd., London, £425-£475 per day
£425 - £475 per day
Contract Spy London, UK
Job Overview We are seeking a highly skilled API / Integration Architect to lead the design, development, and implementation of complex integration solutions across diverse platforms and systems. The successful candidate will play a pivotal role in shaping our cloud architecture and ensuring seamless connectivity between various enterprise applications. This role offers an exciting opportunity to work on cutting-edge technologies, including microservices, cloud computing, and DevOps practices, within a dynamic and innovative environment. What you’ll be doing: Assessing existing systems and defining API-led integration strategy Data formats, interoperability, authentication and security Designing target integration architecture Supporting data and technical feasibility assessments Identifying opportunities for Automation Contributing to discovery outputs and recommendations Lead the architecture and design of scalable, secure,...
Contract Spy
Apr 10, 2026
Duration not stated
Technical Business Analyst at Emagine Consulting, London, £700-£750 per day
£700 - £750 per day
Contract Spy London, UK
As a Technical Business Analyst, you will work with various business partners (Front Office Traders, Market Risk Managers, Business Supervision Officers, Finance and Trade Control) on business analysis, project management, and front to back support, from Trade Capture to Product Risk valuation support. Technical Business Analyst- (Market Risk/FICC) London (Hybrid) x3 Days on-site £700- £750 emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster...
Contract Spy
Apr 09, 2026
6 Months or more
Product Manager at Honey Mountain IT Solutions, London, 6 Months, £Market Rate
Contract Spy London Area, United Kingdom
Product Manager – Golden Phoenix Data & AI Foundations Number of Vacancies: 1 Inside IR35 – 6 Months Contract (With likely extension) Day Rate: As Per Market Rate Location: Central London Hybrid: 2 Days On‑Site per Week Note: Must have a valid Right to Work in the UK — no visa sponsorship available.   Overview We are seeking an experienced Product Manager to lead strategy, delivery, and scaling of three core Data & AI foundation products within bp’s Supply, Trading & Shipping (ST&S) organisation: ·        Unstructured Data Service ·       Variable Latency Streaming ·       Core AI Components These capabilities underpin next‑generation AI, analytics, and business intelligence across ST&S. The role requires a blend of product strategy,...
Contract Spy
Apr 09, 2026
Duration not stated
Lead WPF/C# Developer at Solytics Partners, London Area, £Contract Rate
Contract Spy London Area, United Kingdom
About us: Solytics Partners provides Consulting and Solutions to Banking, Capital Markets, Asset Management, and Insurance firms. We leverage a combination of deep domain knowledge, advanced analytics and technology to provide accelerated and efficient services and next generation solutions. Our team of senior consultants comes with significant global experience in key markets and advanced degrees in STEM. Our regulatory compliant solutions and services enable leading financial institutions and corporations to create and sustain competitive advantage.   Job Summary: We are seeking a skilled WPF Expert with a deep understanding of UI performance optimization and troubleshooting in high-performance environments. The ideal candidate will have hands-on experience in analyzing, profiling, and resolving performance bottlenecks in complex WPF applications.   Responsibilities: Analyze and resolve performance issues in WPF-based user interfaces....
Contract Spy
Apr 07, 2026
6 Months or more
QA Test Coordinator (Unit, CIT, Systems and SIT) - Aladdin or Charles River at Resillion, London, 9 Months, £Contract Rate
Contract Spy London, UK
Company Description Help us to achieve our goal to be the global leader in total quality services. With your help we will achieve this by delivering Total Quality 360, a comprehensive suite of cutting-edge services which combine quality engineering, cyber security, conformance & interoperability and content quality to deliver end-to-end total quality solutions. Here at Resillion, our culture is based on an ‘if you see something, say something’ attitude where we take responsibility. It’s one where we expect to adapt and embrace change as the company grows. It’s based on recognising the individual worth of every one of our employees and developing their skills to keep us all at the forefront of our industry. Above all, it’s a culture where we’re passionate about what we do, and we’re committed to the greater good of the company. If you would like to be part of our journey, then this role may be the one...
Contract Spy
Apr 01, 2026
Duration not stated
Python Platform Engineer at G-Reserach, London, £Contract Rate
Contract Spy London, UK
Python Platform Engineer (Contract) We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity.   From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve.  Together we’re building a world-class platform to amplify our teams’ most powerful ideas.   As part of our engineering team, you’ll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm.   Take the next step in your career.   The role The Storage Engineering team manages hundreds of petabytes across VAST, PowerScale, ECS, Rubrik, Alletra, Pure and a custom Tier Zero platform. The current operational tooling is a patchwork of GitOps workflows and Jenkins pipelines. We're...
Contract Spy
Apr 01, 2026
Duration not stated
Business Analyst - Trading Operations at Emagine, London, £500-£550 per day
£500 - £550 per day
Contract Spy London, UK
Experienced Business Analyst to support and on-going programme with the setup of a new European capital markets entity. This role will be focused on end-to-end operational analysis, process design, and supporting the development of a scalable target operating model across multiple jurisdictions. Business Analyst - Trading Operations & Regulatory Change London- (Hybrid) X3 days on-site per week £500- £550 emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients...
Contract Spy
Mar 27, 2026
6 Months or more
Test Analyst (UAT and Functional) - Aladdin or Charles River at Resillion, London, 9 Months+, £Contract Rate
Contract Spy London, UK
Company Description Help us to achieve our goal to be the global leader in total quality services. With your help we will achieve this by delivering Total Quality 360, a comprehensive suite of cutting-edge services which combine quality engineering, cyber security, conformance & interoperability and content quality to deliver end-to-end total quality solutions. Here at Resillion, our culture is based on an ‘if you see something, say something’ attitude where we take responsibility. It’s one where we expect to adapt and embrace change as the company grows. It’s based on recognising the individual worth of every one of our employees and developing their skills to keep us all at the forefront of our industry. Above all, it’s a culture where we’re passionate about what we do, and we’re committed to the greater good of the company. If you would like to be part of our journey, then this role may be the one...
Contract Spy
Mar 27, 2026
6 Months or more
QA Test Coordinator (Unit, CIT, Systems and SIT) - Aladdin or Charles River at Resillion, London, 9 Months, £Contract Rate
Contract Spy London, UK
Company Description Help us to achieve our goal to be the global leader in total quality services. With your help we will achieve this by delivering Total Quality 360, a comprehensive suite of cutting-edge services which combine quality engineering, cyber security, conformance & interoperability and content quality to deliver end-to-end total quality solutions. Here at Resillion, our culture is based on an ‘if you see something, say something’ attitude where we take responsibility. It’s one where we expect to adapt and embrace change as the company grows. It’s based on recognising the individual worth of every one of our employees and developing their skills to keep us all at the forefront of our industry. Above all, it’s a culture where we’re passionate about what we do, and we’re committed to the greater good of the company. If you would like to be part of our journey, then this role may be the one...
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