26 to 50 of 342 Front End Development Jobs in London

Front End Developer Inside IR35 - £500p/d SC Clearance Required Remote Role Overview: The ideal candidates will have the ability to work independently on advanced front-end development tasks, particularly in the realm of Agentic AI development. This role requires a deep … Agentic AI applications using one of the specified frameworks. Document design intent and ensure the quality of design documentation. Collaborate with Database and Back-End Developers to manage dependencies effectively. Engage in Angular development projects, maintaining high coding standards. Write and execute unit tests for delivered ...

surfaces at the edge, whether that edge is a person watching a browser or another system calling our API. You will handle that complexity end to end: designing services that stay correct under concurrency, and deciding what a caller sees in the meantime - how the interface behaves when … decision that gets made. Testing is a primary engineering activity here, not a step at the end. You will design unit, integration, and end-to-end coverage that gives the team genuine confidence to release, and build the CI/CD pipelines and scripting that run it continuously. ...

Senior Front-End Developer (React, TypeScript) - VP, FX Options Pricing Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating … opportunity to build the future of finance with Citi Tech. The Opportunity We are seeking a highly skilled and motivated Senior Front-End Developer to join a critical greenfield program focused on transforming our electronic FX Options Trading business. This is a multi-year, high-profile project ...

There will be multiple projects running at one time, so will be required to achieve tight deadlines and work with the Senior Front-End Developers to ensure budgets. Requirements: There will be multiple projects running at one time, so will be required to achieve tight deadlines and work … with the Senior Front-End Developers to ensure budgets. Work conditions: There will be multiple projects running at one time, so will be required to achieve tight deadlines and work with the Senior Front-End Developers to ensure budgets. Responsibilities: There will be multiple projects running ...

looking for aJunior UX/UI Engineer- a hybrid creative technologist who combines strong design skills with a solid technical foundation in front-end development.In this role you will be working closely with the team to create intuitive experiences for our web-based trading and enterprise platforms. … Figma and React. Your coding expertise will enable you to collaborate seamlessly with engineers, design with technical constraints in mind, and contribute to front-end development when needed.This is a fantastic opportunity to develop into a well-rounded UX/UI Engineer - deepening your ...

atmosphere is calm and relaxed with an open dress code. This is a role for techies, those who are motivated by the sharp end of technology and the possibility of making serious money doing something you are passionate about.Development is agile and fast paced. As requirements evolve you will … solution, becoming an expert in those areasServe as a technical resource with whom people on the project team consultBe responsible for back-end and front-end development with emphasis on back-end; front-end development includes both Windows ...

join our incredible team of creative, forward thinking Developers. We are looking for someone with a strong and detailed understanding of both back-end concepts and front-end development. This is an exciting time to be joining TEAM LEWIS as we seek to rapidly expand our development … best practices, W3C and accessibility standards across both desktop and mobile web.Additional requirements· 2+ years development experience· Experience with modern front end frameworks like React and NextJs.· Understanding of back-end programming concepts· Previous Experience of Wordpress· Strong vanilla JS skills and front ...

100339415280Posted: 2026-09-08Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Front-End Developer (React, TypeScript) - VP, FX Options PricingEngineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every … touch millions and get the opportunity to build the future of finance with Citi Tech.The OpportunityWe are seeking a highly skilled and motivated Senior Front-End Developer to join a critical greenfield program focused on transforming our electronic FX Options Trading business. This is a multi-year, high ...

work closely with Product and Engineering teams to diagnose issues, identify solutions and communicate customer requirements. You will translate technical requirements between client development teams and internal commercial, product and engineering stakeholders. You will support testing, debugging and validation throughout the implementation lifecycle. You will help … HTML. Hands-on experience working with APIs and software integrations . Comfortable reading technical documentation, investigating integration issues and troubleshooting problems with client development teams. Experience with technologies such as JavaScript, HTML, SQL, Python or Shell scripting would be beneficial. Strong understanding of how web-based ...

platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Palantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organizations securely integrate their data, so they can then build reliable … full‐fledged programs, such as common operating pictures, alert‐triaging inboxes, and resource allocation planning tools driven by rich‐ML models. As a Senior Front End Software Engineer focused on application development in Foundry, you will be responsible for crafting the tools used by thousands ...

need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The RolePalantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organizations securely integrate their data, so they can then build … sophisticated, full-fledged programs, such as common operating pictures, alert-triaging inboxes, and resource allocation planning tools driven by rich-ML models.As a Senior Front End Software Engineer focused on application development in Foundry, you will be responsible for crafting the tools used by thousands ...

platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The RolePalantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organizations securely integrate their data, so they can then build reliable, critical … full-fledged programs, such as common operating pictures, alert-triaging inboxes, and resource allocation planning tools driven by rich-ML models. As a Senior Front End Software Engineer focused on application development in Foundry, you will be responsible for crafting the tools used by thousands ...

with Babel, Vite, and esbuild (HMR, tree-shaking, code-splitting, bundle size optimization) Develop and publish npm packages (semantic versioning, changelogs, automated releases) Build Front-End CI/CD pipelines with GitHub Actions (lint/test/build/storybook/e2e, caching, multi-environment deployments) Design … with npm package development and publishing (monorepo/workspace experience is a plus) Proven experience with GitHub Actions (or similar) for front-end CI/CD Hands-on BFF development experience (Node.js, preferably NestJS/Express) Advanced TypeScript knowledge (generics, utility types ...

this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job title: Senior Full Stack Developer (Front End - Java/Angular/Solidity) Location : London (5 days per week onsite) Contract: 12 months with possible extension Rate : £700 - £750 inside IR35 … across the full technology stack, delivering scalable web applications, cloud-native services, and modern user experiences. The successful candidate will have strong Java and Front End development experience, a passion for software engineering best practices, and experience working within Agile delivery teams. Key Responsibilities Design ...

this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job title: Senior Full Stack Developer (Front End - Java/Angular/Solidity) Location : London (5 days per week onsite) Contract: 12 months with possible extension Rate : £700 - £750 inside IR35 … across the full technology stack, delivering scalable web applications, cloud-native services, and modern user experiences. The successful candidate will have strong Java and Front End development experience, a passion for software engineering best practices, and experience working within Agile delivery teams. Key Responsibilities Design ...

FullStack Developer 6 months Remote Inside IR35 - Umbrella This is a great opportunity for an Azure-focused FullStack developer who enjoys building reliable applications end to end. You'll work on healthcare-facing systems where secure, scalable solutions genuinely matter. What you'll be doing: Develop and integrate APIs … support modern application experiences Build and automate workflows using Azure Logic Apps Create clean front-end features using React, Angular or Vue.js Deliver back-end services using .NET, Node.js, or Python Work with JSON and JavaScript to build and consume data-driven interfaces Script and automate operational ...

Front End Developer - React, RxJS, Typescript, Websockets, EDA Working with a global financial services organisation who are looking for a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) t o join a small, collaborative team responsible … with a strong possibility of extension Rate - £700-£800/day Inside IR35 via Umbrella Skills and Experience Required Frontend: Proven experience as a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) Real-Time: Experience with Real-time ...

Front End Developer - React, RxJS, Typescript, Websockets, EDA Working with a global financial services organisation who are looking for a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) t o join a small, collaborative team responsible … with a strong possibility of extension Rate - £700-£800/day Inside IR35 via Umbrella Skills and Experience Required Frontend: Proven experience as a Front-End Developer with expertise in React, RxJS, Typescript, Websockets and Event Driven Development (EDA) Real-Time: Experience with Real-time ...

This global company is looking for a Senior Front End Developer to join their team in Kings Cross. They are one of the most tech-agnostic companies that I work with so this is a great place to expand your skills and share your knowledge.Some of your responsibilities … that thrives on sharing knowledge and will be managed in a "bottom-up" fashion which will allow you to express yourself as a Senior Front End Developer.The successful Senior Front End Developer will be paid up to 85,000 per year and have access to remote ...

productivity and transparency. We are seeking a skilled and passionate Full-Stack Software Engineer with strong experience in C#/.NET Core and modern front-end technologies (React, JavaScript/TypeScript, HTML, CSS) to design, develop, and maintain robust APIs and user interfaces for our enterprise applications. … software design patterns, and secure coding standards. Experience with Entity Framework, SQL Server, and version control systems (e.g., Git). Hands-on experience with front-end development using React, JavaScript/TypeScript, HTML, and CSS. Experience with modern front-end tooling and build ...

through CrowdStrike’s software development lifecycle, ensuring goals are met on time and projects move towards completionIf you are passionate about front end development, complex visuals, and are ready to make a significant impact in the cybersecurity space, we would like … hear from you.What You'll Do:Develop large graph features that impact thousands of customers and use millions of data pointsWork with design, back-end teams and product management to find the best solutions displaying complex visuals with a variety of back-end data layer conditionsPair with ...

CrowdStrike’s software development lifecycle, ensuring goals are met on time and projects move towards completion If you are passionate about front end development, complex visuals, and are ready to make a significant impact in the cybersecurity space, we would like … you. What You’ll Do: Develop large graph features that impact thousands of customers and use millions of data points Work with design, back-end teams and product management to find the best solutions displaying complex visuals with a variety of back-end data layer conditions Pair with ...

maintain backend services using Python . Design and integrate APIs and server-side applications. Work with relational and non-relational databases. Contribute to front-end development where required. 🔄 Data Engineering Build, maintain and optimise data pipelines . Develop ETL/ELT workflows and data … ability. Excellent written and spoken English. Desirable – Great Advantage But Not Essential Experience with any of the following would strengthen your application: Experience with front‐end web technologies and frameworks such as React and Next.js. Experience with nextgen datawarehouse/data analytics platforms such as Snowflake or Databricks ...

Cloud, Platform Engineering, and Managed Solutions. What you will be doing As a Senior Manager in SAIL, you will own and lead consultancy engagements end-to-end from shaping the opportunity and winning the work, through to delivery governance and team leadership. You will bring SME-level depth … deep technical knowledge when needed. The profile of our typical engagements reflects that. Key responsibilities span the following areas. Engagement Leadership: Own and lead end-to-end delivery of complex AI and technology consulting engagements, taking accountability for scope, quality, risk and client outcomes. Lead and resource ...

Role: Join the company's innovative Generative AI (GenAI) team, where we are advancing cutting‐edge AI and machine learning solutions. As a Front‐End Engineer, you will play a pivotal role in designing and delivering exceptional user experiences for our GenAI product portfolio. You will contribute … into their applications. Minimum Qualifications Demonstrated industry expertise in creating user‐focused GenAI applications with intuitive UX design. 5+ years of professional experience building front‐end applications with React, Tailwind CSS Proficiency in front‐end development best practices, including CI/CD pipelines ...