876 to 900 of 1,046 Front End Development Jobs

Key Responsibilities • Develop modern web applications using React 18 and TypeScript • Build responsive UIs with Vite as the build tool and development server • Create interactive data grids and dashboards using AG Grid Enterprise or similar 3rd party UI (DevExpress, Progress/Telerik) • Implement authentication flows using Azure MSAL (Microsoft Authentication Library) • Build real-time features using SignalR … Axios and generated API clients via Orval • Work with SCSS/Sass for styling and Design System components Required Technical Skills • 8+ years of experience with modern frontend development • Strong proficiency in React, TypeScript, and JavaScript (ES6+) • Experience with Vite or similar modern build tools (Webpack, Parcel) • Knowledge of Azure AD authentication and MSAL implementation • Experience with … REST API integration and state management • Strong CSS/SCSS skills and responsive design principles • Experience with testing frameworks (Jest, React Testing Library) • Knowledge of Git and modern development workflows • Experience with Blazor (WebAssembly/Server) - highly preferred Preferred Qualifications • Knowledge of SignalR for real-time web applications • Experience with Azure cloud services and deployment pipelines • Familiarity More ❯

a key role in delivering high-quality, maintainable code and bringing digital experiences to life. You’ll work on custom-built WordPress themes and contribute to modern frontend development using frameworks such as React and Next.js. The ideal candidate enjoys collaborating with cross-functional teams, managing code reviews, and taking ownership of delivering clean, efficient, and scalable … code. Key Responsibilities Develop and maintain high-quality websites and web applications using HTML, CSS, JavaScript, and PHP Build and enhance custom WordPress themes and plugins Lead development on key features, including Gutenberg blocks for high-profile clients Manage and review pull requests to maintain code quality Work closely with project managers to estimate time and assign More ❯

a key role in delivering high-quality, maintainable code and bringing digital experiences to life. You’ll work on custom-built WordPress themes and contribute to modern frontend development using frameworks such as React and Next.js. The ideal candidate enjoys collaborating with cross-functional teams, managing code reviews, and taking ownership of delivering clean, efficient, and scalable … code. Key Responsibilities Develop and maintain high-quality websites and web applications using HTML, CSS, JavaScript, and PHP Build and enhance custom WordPress themes and plugins Lead development on key features, including Gutenberg blocks for high-profile clients Manage and review pull requests to maintain code quality Work closely with project managers to estimate time and assign More ❯

a key role in delivering high-quality, maintainable code and bringing digital experiences to life. You’ll work on custom-built WordPress themes and contribute to modern frontend development using frameworks such as React and Next.js. The ideal candidate enjoys collaborating with cross-functional teams, managing code reviews, and taking ownership of delivering clean, efficient, and scalable … code. Key Responsibilities Develop and maintain high-quality websites and web applications using HTML, CSS, JavaScript, and PHP Build and enhance custom WordPress themes and plugins Lead development on key features, including Gutenberg blocks for high-profile clients Manage and review pull requests to maintain code quality Work closely with project managers to estimate time and assign More ❯

a key role in delivering high-quality, maintainable code and bringing digital experiences to life. You’ll work on custom-built WordPress themes and contribute to modern frontend development using frameworks such as React and Next.js. The ideal candidate enjoys collaborating with cross-functional teams, managing code reviews, and taking ownership of delivering clean, efficient, and scalable … code. Key Responsibilities Develop and maintain high-quality websites and web applications using HTML, CSS, JavaScript, and PHP Build and enhance custom WordPress themes and plugins Lead development on key features, including Gutenberg blocks for high-profile clients Manage and review pull requests to maintain code quality Work closely with project managers to estimate time and assign More ❯

a key role in delivering high-quality, maintainable code and bringing digital experiences to life. You’ll work on custom-built WordPress themes and contribute to modern frontend development using frameworks such as React and Next.js. The ideal candidate enjoys collaborating with cross-functional teams, managing code reviews, and taking ownership of delivering clean, efficient, and scalable … code. Key Responsibilities Develop and maintain high-quality websites and web applications using HTML, CSS, JavaScript, and PHP Build and enhance custom WordPress themes and plugins Lead development on key features, including Gutenberg blocks for high-profile clients Manage and review pull requests to maintain code quality Work closely with project managers to estimate time and assign More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? Senior Frontend Developer AI Data Security Location : Hybrid working 1-3 days a week in central London (Kings More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King More ❯

Senior Frontend Developer React/Typescript 2 days a week in the office £This company are one of the biggest and most successful businesses within their niche FinTech market space and have massive plans to build brand new Tech More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King More ❯

Role: Full Stack Developer Salary: £60,000 - £70,000 + Company Bonus Location: Hybrid - Nottinghamshire (Once a week) Type: Permanent About the job: If you are a Senior Full Stack Engineer who has a strong C#, .Net background, has strong More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King More ❯

Are you an experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King More ❯

Senior Frontend Developer React/Typescript Central London 2 days a week in the office £60,000 - £70,000 This company are one of the biggest and most successful businesses within their niche FinTech market space and have massive plans More ❯

Senior Frontend Developer React/Typescript Central London 2 days a week in the office £60,000 - £70,000 This company are one of the biggest and most successful businesses within their niche FinTech market space and have massive plans More ❯

Senior Frontend Developer React/Typescript Central London 2 days a week in the office £60,000 - £70,000 This company are one of the biggest and most successful businesses within their niche FinTech market space and have massive plans More ❯

be joining a multidisciplinary AI/ML team responsible for developing the infrastructure and software that powers cutting-edge research and intelligent applications. The role focuses on backend development in Python , integrating AI components with data, compute, and frontend systems to create scalable, high-performance solutions. Day-to-day responsibilities include: Designing and implementing backend services for … and well-documented code following best practices. Developing and monitoring metrics to improve system reliability and performance. Collaborating closely with frontend engineers, data engineers, and ML specialists to build end-to-end pipelines. Participating in agile ceremonies and code reviews to uphold quality and delivery standards. Tech Stack & Skills Core skills: Strong Python backend development experience (FastAPI or similar frameworks) Cloud-native deployment experience (preferably Google Cloud and Cloud Run) Unit testing experience (pytest or similar frameworks) Familiarity with agile development and CI/CD processes Strong understanding of Git/GitHub workflows and DevOps tooling Nice to have: Experience with Docker or multi-container application architecture Familiarity with More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior … UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework … including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior … UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework … including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior … UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework … including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior … UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework … including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior … UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework … including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low levy programming with JavaScript and React Development More ❯

products, including partner integrations. Implement efficient RAG AI backend systems for introducing advanced LLM based features Collaborate with product managers, data engineers, and frontend developers to deliver new features end to end. Write clean, maintainable, and well-tested code, following modern CI/CD practices (GitHub Actions). Contribute to architecture discussions around performance, scalability, and data integrity. Help … and distributed systems. Strong grasp of database design and query optimisation (SQL and/or NoSQL). Comfortable working in a small, fast-paced team where you’ll have end-to-end ownership. Passion for clean architecture, performance, and testable code. Interest in the EV, sustainability, or data analytics space is a plus. Nice to Have Experience with More ❯

products, including partner integrations. Implement efficient RAG AI backend systems for introducing advanced LLM based features Collaborate with product managers, data engineers, and frontend developers to deliver new features end to end. Write clean, maintainable, and well-tested code, following modern CI/CD practices (GitHub Actions). Contribute to architecture discussions around performance, scalability, and data integrity. Help … and distributed systems. Strong grasp of database design and query optimisation (SQL and/or NoSQL). Comfortable working in a small, fast-paced team where you’ll have end-to-end ownership. Passion for clean architecture, performance, and testable code. Interest in the EV, sustainability, or data analytics space is a plus. Nice to Have Experience with More ❯