1 to 25 of 63 JavaScript Developer Jobs in London

Full Stack Developer/Engineer (JavaScript Vue.js Python) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route … established 10 years, with recent funding of £125 million.You'll be working on complex and interesting systems and can enjoy a range of benefits and perks.As a Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route … with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment. There's More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route … with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment. There's More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route … with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Front End Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You … ll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment. There's More ❯

Full Stack Engineer (Web Developer or DevOps) - Python & JavaScript Application Deadline: 11 May 2025 Department: Tech Hub Employment Type: Full Time Location: London Description Contract type: Permanent Hours: 37.5 hours Salary: circa £65,000 depending on experience Location: Canary Wharf WFH policy: Employees are required to attend the office 2 days/week Flexible working: Variety of flexible … getting stuck in. Design highly scalable software solutions to improve functionality and system longevity. Work with technical business analysts and solution architects to fine tune requirements and ensure that developer tasks and Jira tickets are feasible to deliver. Translate designs and wireframes into high quality code. Develop new user-facing features using frameworks such as React.js (other frameworks will … be considered). Write front-end components using JavaScript, CSS and integrate with back-end Python components (possibly other languages). Develop modules that satisfy the functional and non-functional requirements. Prepare, review and build reusable components and front-end libraries. Participate in the maintenance and improvement of existing applications. Stay up-to-date with emerging technologies and industry More ❯

Hedge Fund Trading - Contract Python Developer - Futures, FX, Credit, PnL, Data eng, AWS, Javascript Job Description We are looking for a motivated Software Engineer to work directly in one of our Trading teams. This is an exciting opportunity to develop high-performance software in a dynamic trading environment, collaborate with experienced developers and traders, and deepen your knowledge … development, including: - Scientific libraries (eg, Pandas, Polars, NumPy, SciPy). - Web technologies (eg, Flask, FastAPI). - Data engineering experience. - Familiarity with cloud infrastructure (eg, AWS). Nice-to-Have - JavaScript UI frameworks (eg, React, Vue, Angular). - Docker and Kubernetes. - Previous experience in investment banking or hedge funds. - Understanding of basic financial mathematics (eg, portfolio optimization, risk metrics). More ❯

Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: e1c098b847dc Job Views: 5 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Full Stack Developer/Engineer (JavaScript Vue.js Python) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands … on Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can … enjoy a range of benefits and perks. As a Full Stack Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's More ❯

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state … first approach, emphasizing straightforward architecture and the highest standards of code quality in alignment with company-wide conventions. Required skills: · Minimum of 4 years of hands-on experience with Javascript working mainly on Frontend solutions · Solid grasp of JavaScript(Vanilla Javascript) fundamentals , including understanding of the Document Object Model (DOM) and browser Application Programming Interfaces (APIs). … behavior and techniques to optimize performance. · Capable of developing and implementing unit tests for code components and complete applications. · Proficient in English, both spoken and written. Must Have Skills · Javascript · Angular · Node.js · HTML & CSS · Git · Webpack More ❯

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state … first approach, emphasizing straightforward architecture and the highest standards of code quality in alignment with company-wide conventions. Required skills: · Minimum of 4 years of hands-on experience with Javascript working mainly on Frontend solutions · Solid grasp of JavaScript(Vanilla Javascript) fundamentals , including understanding of the Document Object Model (DOM) and browser Application Programming Interfaces (APIs). … behavior and techniques to optimize performance. · Capable of developing and implementing unit tests for code components and complete applications. · Proficient in English, both spoken and written. Must Have Skills · Javascript · Angular · Node.js · HTML & CSS · Git · Webpack More ❯

Full-Stack Javascript Developer – Central London Our Client is urgently looking to recruit a Full-Stack Java Developer with very strong Javascript development expertise. You must have at least 3 to 5 years experience as a Full-Stack Developer with Javascript fundamentals, design patterns, and OOP – Object Oriented Programming. So you must have at More ❯

Javascript Front End Developer – Central London JavaScript Engineer required to join a fast growing company and shape the future of payments cross-platform and cross-device? Evolving in an agile and collaborative environment, you will be part of a multidisciplinary and excellence-driven team and bring your solid native JavaScript skills and perspective to all projects … brand and interface guidelines Encourage the use of best practices and workflows throughout the organization Contribute to team discussions and stand-ups Mentor Junior Team members Skills & Experience Excellent JavaScript (Vanilla) with code patterns Good knowledge of some JS frameworks (e.g. Angular, Backbone) Complete understanding of the full web stack Solid knowledge of CSS pre-processors (SASS, LESS) and … HTML5 Knowledge of some server side languages (e.g. PHP, NodeJS) Knowledge of some client/server testing framework (e.g. Mocha, Jasmine, JUnit) Bilingual English and JavaScript Salary will be in the range £40K to £60K Per Annum. Please send your CV to us in Word format. #J-18808-Ljbffr More ❯

Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all teams we cooperate with internal and external experts from different More ❯

equivalent practical experience). 1-2 years of experience in front-end development or a related field, with a focus on web technologies. Strong proficiency in HTML, CSS, and JavaScript, and experience with front-end frameworks. Experience in building responsive web applications and familiarity with CSS frameworks. Solid understanding of cross-browser compatibility, web performance, and responsive design principles. … ability to work independently and learn quickly. Preferred Requirements: Experience in a fast-paced SaaS or tech environment, focusing on building and scaling front-end systems. Familiarity with modern JavaScript features, TypeScript, and state management libraries. Understanding of UI/UX design principles and collaboration with design teams to bring visual concepts to life. Knowledge of web security best More ❯

Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid My prestigious financial services client is looking to expand their digital transformation team and require an experienced Full Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django … ownership of projects, from requirement gathering through to deployment - Mentor junior developers to support their technical growth. Skills & Experience: - Minimum of 3 years of experience as a full-stack developer across: Backend: Python, Django Frontend: JavaScript, React, Next.js Version Control: Git Beneficial Knowledge: - Azure - AI Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid More ❯

Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid My prestigious financial services client is looking to expand their digital transformation team and require an experienced Full Stack Developer with strong Python & JavaScript to join them working across a range of new initiatives Core skills across Python and JavaScript with experience in Django … ownership of projects, from requirement gathering through to deployment - Mentor junior developers to support their technical growth. Skills & Experience: - Minimum of 3 years of experience as a full-stack developer across: Backend: Python, Django Frontend: JavaScript, React, Next.js Version Control: Git Beneficial Knowledge: - Azure - AI Full Stack Python/JavaScript Developer - London - £60k Very flexible hybrid More ❯

Full Stack Developer/Engineer (JavaScript Node.js AWS API) London/WFH to £85k Are you a technologist who enjoys using a range of languages whilst continually learning? You could be progressing your career as a Full Stack Developer at a successful and growing Cyber Security Risk Management tech company, working on complex and interesting systems at … the cutting edge of technology used by insurance company to assess security risk. As a Full Stack Developer you'll join the Product Engineering team working on the development of websites, APIs and efficient database queries. As well as JavaScript and SQL you'll be working with TypeScript, Node.js and serverless AWS with a focus on backend development …/WFH: You'll join the team in the London Bridge office three days a week with flexibility to work from home the other two. About you: You have JavaScript/TypeScript backend development experience You have a good knowledge of REST APIs You have strong SQL query writing skills You have experience of working on scalable systems with More ❯

provided by Free-Work UK. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Senior Full Stack Developer/Software Engineer (Java JavaScript React) London to £80k Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As … a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across … the full tech stack from Java on the backend through to JavaScript/TypeScript, React and React Native front end work. Location/WFH: You'll join a team of finance entrepreneurs and technologists in City based offices with smart dress code on a fulltime basis. About You You are an experienced Software Developer with a strong knowledge More ❯

React Developer – Digital Health Tech – London (Hybrid) – £55k–£75k + Benefits Location: London, Hybrid (2–3 days in office) Salary: £55,000 – £75,000 (depending on experience) Job Type: Full-time, Permanent We’re a healthtech company on a mission to improve healthcare access, outcomes, and experiences through cutting-edge digital solutions. Based in central London, our platform is … providers, private clinics, and patients across the UK to deliver safer, faster, and more personalised care. As we scale up, we're looking for a skilled and passionate React Developer to help us build user-facing applications that make a real difference in people’s lives.What You’ll Be Doing: Building and maintaining modern, responsive front-end applications with … regulated environment Collaborating in an agile, cross-functional team to deliver impactful health solutions What We’re Looking For: 2+ years of professional experience with React.js Strong grasp of JavaScript (ES6+), HTML5, and CSS3 Familiarity with TypeScript, Redux, and component libraries (e.g., Material UI) Experience building accessible apps (WCAG standards knowledge is a plus) Comfortable working with RESTful APIs More ❯

React Developer – Digital Health Tech – London (Hybrid) – £55k–£75k + Benefits Location: London, Hybrid (2–3 days in office) Salary: £55,000 – £75,000 (depending on experience) Job Type: Full-time, Permanent We’re a healthtech company on a mission to improve healthcare access, outcomes, and experiences through cutting-edge digital solutions. Based in central London, our platform is … providers, private clinics, and patients across the UK to deliver safer, faster, and more personalised care. As we scale up, we're looking for a skilled and passionate React Developer to help us build user-facing applications that make a real difference in people’s lives.What You’ll Be Doing: Building and maintaining modern, responsive front-end applications with … regulated environment Collaborating in an agile, cross-functional team to deliver impactful health solutions What We’re Looking For: 2+ years of professional experience with React.js Strong grasp of JavaScript (ES6+), HTML5, and CSS3 Familiarity with TypeScript, Redux, and component libraries (e.g., Material UI) Experience building accessible apps (WCAG standards knowledge is a plus) Comfortable working with RESTful APIs More ❯

As part of our team, you can explore what motivates and energizes your career goals: partnering with our customers, our communities, and each other. Job Description Senior Full Stack Developer/Engineering Lead - .NET & JavaScript US Bank are hiring a Senior Full Stack Developer who can design, develop, and lead the creation of top-notch internal tools … teams, and senior stakeholders to shape systems used daily by hundreds of users. Key Responsibilities Design and build robust full-stack applications using the Microsoft stack (.NET Core, C#, JavaScript, EF) Architect and develop dynamic, configurable web-based platforms for internal business users Implement data visualization and reporting tools (D3.js, ECharts) to replace inefficient EUC solutions Create APIs and … training, and continuous improvement cycles Ideal Candidate Will Have: 10+ years in software engineering with experience across the full stack Deep hands-on expertise with C#, .NET Core, ASP.NET, JavaScript, EF (EF6 and EF Core) Experience building internal platforms or tools used by non-technical business users Strong frontend skills: JavaScript, HTML, CSS, Bootstrap, D3.js or similar libraries More ❯

Job Description The position is for a Ruby Web Application Developer to build new and maintain existing Rails applications communicating with a Java API. The developer will be working within an Agile team to design and deliver high-quality applications. Requirements Experience designing and building Ruby-on-Rails application in a commercial environment Ruby Javascript Ideally Angular More ❯

Tech Hub Job Opening At the Tech Hub in London, there is an opening for a Full Stack Engineer (Web Developer or DevOps) proficient in Python and JavaScript. Job Responsibilities The role involves: Translating designs and wireframes into high-quality code. Developing user-facing features using frameworks like React.js. Writing front-end components in JavaScript and CSS. Integrating More ❯

Our client in the Hospitality Industry is looking for a Senior JavaScript Developer to join their team. Join the dynamic team in the hospitality industry, where we are revolutionizing customer experiences with innovative and high-performing applications. We are looking for a Senior JavaScript Developer with expertise in Node.js, React.js, and testing to work on exciting … applications to ensure smooth functionality. Stay up to date with emerging technologies and industry trends to continuously improve our applications. Required Skills & Qualifications: 5+ years of experience as a JavaScript Developer. Strong proficiency in Node.js and React.js . Hands-on experience with unit and integration testing (e.g., Jest, Mocha, Cypress). Deep understanding of JavaScript, ES6+, and modern More ❯

Country: United Kingdom Location: London Sector: Software Developer Job Type: Permanent Full Stack Developer - PHP/Angular/Node JS/Javascript Posted Wednesday, 12 July 2017 We at Endeavour Recruitment are currently recruiting for an experienced Full Stack Developer to join a dynamic team in central London. Large reputable corporation. Responsibilities : - Front End and Back More ❯

to automate complex processes, make smart decisions, and interact with the real world in ways that were previously impossible. Position Overview We are looking for a Senior Full Stack JavaScript Developer to lead the development of both client-side and server-side functionalities. In this role, you will focus on building user interfaces that interact with the blockchain … tests and documentation for both client-side and server-side code. Participate in code reviews and provide constructive feedback to team members. Minimum Requirements 5+ years of experience in JavaScript development. Proficiency in modern JS frameworks (React, Vue, Node.js). Experience in building complex web applications (full stack). Understanding of asynchronous request handling and integration with backend systems. More ❯