6 front end developer jobs found in London

Front End Developer - SC CLEARED - OUTSIDE IR35 - HIRING ASAP Start date: ASAP Duration: 12 Months Location: 2 days every fortnight in the Portsmouth office Rate: £450 - £492 per day OUTSIDE IR35 SECURITY CLEARANCE REQUIRED Summary: Our client is looking for a Front End developer to work in the Mobile Apps team. The team are currently working on the MyNavy application which has recently been launched as a fully native app. Must Have Skills: MoD experience Communication and collaboration skills Experienced Web application developer Further Skills: Umbraco CMS & API Product Development TFS Build Agent Azure Environment Features - VM build Azure DevOps Tools Integration with SSO capabilities Knowledge of Azure Network configuration (eg Firewalls, Load Balancers) React UI Technologies MSSQL Database Management System ISS Web Server Administration

Contract Full-Stack JavaScript Developer (AI Platform) Location: 3 days per week in London Office Duration: 4 weeks with a longer term extension afterwards. IR35 Status: Outside IR35 Rate: £500p/d - £600p/d Opus is partnering with a cutting-edge FinTech start-up to secure a Contract Full-Stack JavaScript Developer . You'll be joining a small, high-calibre team building a platform to improve workflows within the FinTech space. They have a genuinely interesting problem at the intersection of Front End engineering, Back End systems, and applied LLM tooling . This is a true 0-1 build , ideal if you enjoy ownership, clean abstractions, and shipping product quickly. What You'll Be Working On Building and extending agent-driven workflows. Developing context management and LLM entry points. Only application-layer LLM integrations, not model training) Expanding slide generation functions and data structures. Full-stack feature development, with a Front...

React Developer Remote with very occasional client visits £400pd to £420pd - Outside IR35 3 month contract - potential for extension Our client, an established and successful Consultancy are looking for a number of mid-level Developers to join them on a contract basis With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy leader with a dedicated team of professionals, partnering with sector leaders After recently winning a large public sector project they are creating a whole new team and need people who are able to start no later than March 16th. This is a fully hands on role where you will work as part of an established successful team, primarily working with React and Typescript technologies We are looking for: Expert knowledge of React Strong proficiency in JavaScript (ES6+), HTML5, CSS3, and responsive UI engineering. Experience with Redux or other state management libraries. Strong...

Full Stack Developer (TypeScript / React / Node.js) – DV Cleared Contract | £600–£650/day | Outside IR35 We’re supporting a high-profile programme within the secure government space and are looking for an experienced DV Cleared Full Stack Developer to join an established delivery team. Key Details: Rate: £600–£650 per day (Outside IR35) Clearance: Active DV required Start Date: End of April Location: 1–2 days onsite per week (UK-based) Interview Process: 2 stages Responsibilities: Build and maintain scalable full stack applications using TypeScript, React, and Node.js Develop secure, high-performance APIs and front-end interfaces Deploy and manage applications within AWS cloud environments Collaborate with cross-functional teams in an Agile delivery setting Contribute to architecture decisions and best practice engineering standards Required Experience: Strong commercial experience across TypeScript, React, and Node.js...

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 challenges across front-end, back-end, and infrastructure. You have...

Location: Reading - 1 day per week onsite (rest remote) Contract: 3-6 months initially with the view to extend Rate: £550 per day (Outside IR35) We are seeking a Full Stack Developer to support a telecommunications client, working across modern Front End and Back End technologies to deliver high-quality, scalable solutions. You will take ownership of requirements from brief through to delivery, producing well-structured code while collaborating with the wider development team. Essential Skills Strong experience with React and JavaScript/TypeScript in production environments. Solid Back End development experience using Python . Experience building and working with REST APIs (FastAPI preferred). Strong understanding of software engineering principles, design, and architecture . Experience delivering AI solutions . Ability to work independently from a brief while contributing to a team environment. Strong communication and collaboration...