26 to 39 of 39 Front-End Engineer (Client-Side Engineer) Jobs in the South East

fixed income system evolution, and ensure strategic tech integration. Enjoy flexible work, ongoing training, and a supportive, inclusive environment. Key Responsibilities: Design and develop modern, high-performance front-end applications using React and TypeScript, ensuring they meet the demanding needs of real-time trading environments. Plan and deliver solutions that align with business goals and support … intricate trading workflows Build resilient and maintainable user interfaces by implementing comprehensive testing strategies and code reviews Ensure that all front-end components are well-architected, scalable, and integrate seamlessly Collaborate effectively with cross-functional teams-including traders, backend engineers, and product managers Contribute actively to the decommissioning of legacy systems by facilitating the adoption of … gather requirements, provide technical guidance, and ensure that delivered solutions address real-world challenges faced by end users. Key Requirements: Demonstrated expertise in developing sophisticated front-end applications using React.js, JavaScript/TypeScript Proven experience building real-time trading or financial applications where high performance and low latency are essential for business success. Comprehensive More ❯

UCL, Innovate UK, Microsoft, and Google, we're becoming the go-to AI education platform for all major exams worldwide. The Role We're seeking a talented Front-End Developer who will help us craft beautiful, engaging user experiences that rival the best consumer apps, while helping us pioneer the future of AI-powered education interfaces. More ❯

UCL, Innovate UK, Microsoft, and Google, we're becoming the go-to AI education platform for all major exams worldwide. The Role We're seeking a talented Front-End Developer who will help us craft beautiful, engaging user experiences that rival the best consumer apps, while helping us pioneer the future of AI-powered education interfaces. More ❯

UCL, Innovate UK, Microsoft, and Google, we're becoming the go-to AI education platform for all major exams worldwide. The Role We're seeking a talented Front-End Developer who will help us craft beautiful, engaging user experiences that rival the best consumer apps, while helping us pioneer the future of AI-powered education interfaces. More ❯

Taking ownership of smaller projects when required. Lead and contribute to writing specification documentation as applicable. Skills & Experience Expertise with JavaScript and TypeScript. Experience developing Mobile and front-end website applications. Expertise with Ionic 7/Angular 17 and above. Expertise with CSS and CSS pre-processors (SCSS, etc.). Knowledge of Web Standards, including Web More ❯

Taking ownership of smaller projects when required. Lead and contribute to writing specification documentation as applicable. Skills & Experience Expertise with JavaScript and TypeScript. Experience developing Mobile and front-end website applications. Expertise with Ionic 7/Angular 17 and above. Expertise with CSS and CSS pre-processors (SCSS, etc.). Knowledge of Web Standards, including Web More ❯

Founding Frontend Engineer (React/TypeScript) We’re building the operating system for experience-led businesses — helping teams manage bookings, resources, customers, and payments in one place. Our mission: make it effortless for operators to run what they love. We’re product-led, customer-obsessed , and move fast — small, high-trust, and ambitious. London-based | Hybrid More ❯

Founding Frontend Engineer (React/TypeScript) We’re building the operating system for experience-led businesses — helping teams manage bookings, resources, customers, and payments in one place. Our mission: make it effortless for operators to run what they love. We’re product-led, customer-obsessed , and move fast — small, high-trust, and ambitious. London-based | Hybrid More ❯

Founding Frontend Engineer (React/TypeScript) We’re building the operating system for experience-led businesses — helping teams manage bookings, resources, customers, and payments in one place. Our mission: make it effortless for operators to run what they love. We’re product-led, customer-obsessed , and move fast — small, high-trust, and ambitious. London-based | Hybrid More ❯

This is a job that Jill is helping to recruit for on behalf of one of our customers. To apply, speak to Jack. Title: Frontend Engineer (£75k-£100k + Equity) at Well-funded activity platform SaaS Salary: £75k-£100k + Equity Company Description: Well-funded activity platform SaaS Job Description: As a Founding Frontend Engineer More ❯

Role: Staff Front End Engineer Location: Hybrid - 2-3 days in London Office Compensation: Up to £170,000 + equity We’re working with a frontier AI-driven biology lab on a mission to redefine how science is done. Their research and engineering teams are building next-generation tools that help scientists … visualise, understand, and design biology at an unprecedented scale. As a Front End Engineer , you’ll craft the visual layer of this transformation, designing interfaces that turn vast, complex biological data into intuitive, beautiful experiences. Your work will sit at the intersection of AI, design, and discovery , directly accelerating breakthroughs in life More ❯

Role: Staff Front End Engineer Location: Hybrid - 2-3 days in London Office Compensation: Up to £170,000 + equity We’re working with a frontier AI-driven biology lab on a mission to redefine how science is done. Their research and engineering teams are building next-generation tools that help scientists … visualise, understand, and design biology at an unprecedented scale. As a Front End Engineer , you’ll craft the visual layer of this transformation, designing interfaces that turn vast, complex biological data into intuitive, beautiful experiences. Your work will sit at the intersection of AI, design, and discovery , directly accelerating breakthroughs in life More ❯

Role: Staff Front End Engineer Location: Hybrid - 2-3 days in London Office Compensation: Up to £170,000 + equity We’re working with a frontier AI-driven biology lab on a mission to redefine how science is done. Their research and engineering teams are building next-generation tools that help scientists … visualise, understand, and design biology at an unprecedented scale. As a Front End Engineer , you’ll craft the visual layer of this transformation, designing interfaces that turn vast, complex biological data into intuitive, beautiful experiences. Your work will sit at the intersection of AI, design, and discovery , directly accelerating breakthroughs in life More ❯

The role We're looking for a Senior Engineer to join our Research and Trade DX team in London. Sitting within the Basecamp Technology group and providing specialised engineering capabilities and scalable components to our Research and Trade Technology groups, this is an impactful role that will require you to design, build and operate scalable solutions More ❯