16 of 16 Permanent Front-End Engineer (Client-Side Engineer) Jobs in the City of London

We’re partnering exclusively with one of the most prestigious trading firms in London to find a highly skilled Front-End Software Engineer to join their world-class engineering team. This is an opportunity to work at the very heart of high-performance trading technology — building ultra-responsive, visually intuitive web interfaces … Doing: Building high-performance, data-intensive UIs using React and TypeScript Collaborating closely with back-end engineers, traders, and product teams Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and code quality are non-negotiable 🛠️ Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React … WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) ✅ What They’re Looking For: Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship More ❯

We’re partnering exclusively with one of the most prestigious trading firms in London to find a highly skilled Front-End Software Engineer to join their world-class engineering team. This is an opportunity to work at the very heart of high-performance trading technology — building ultra-responsive, visually intuitive web interfaces … Doing: Building high-performance, data-intensive UIs using React and TypeScript Collaborating closely with back-end engineers, traders, and product teams Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and code quality are non-negotiable 🛠️ Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React … WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) ✅ What They’re Looking For: Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship More ❯

however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible … with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work More ❯

however, you are not required or expected to have background in Machine Learning. This is a senior-level role, and we are looking to hire a software engineer with background in product design, UI/UX design, and with a strong sense of aesthetics. Portfolio We would love to see your recent frontend works! If possible … with a startup work environment and wider ecosystem. Why join us? Work in an environment conducting cutting-edge research in AI. An official role title of “Founding Engineer” – make an impact on day one. Competitive salary, equity and benefits package. 28 days + public holidays allowance. Opportunities for professional growth and progression with your career. Work More ❯

About Foxy Foxy gives creators AI superpowers to make incredible social media content — so they can create more, grow faster, and earn more. We believe creators are the most undervalued entrepreneurs on the planet, and we’re here to change More ❯

About Foxy Foxy gives creators AI superpowers to make incredible social media content — so they can create more, grow faster, and earn more. We believe creators are the most undervalued entrepreneurs on the planet, and we’re here to change More ❯

vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for an experienced Frontend Engineer to work closely with product, design, mobile, and machine learning team members to design & build experiences that re-define retail shopping. You'll help help build engaging & intuitive More ❯

vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for an experienced Frontend Engineer to work closely with product, design, mobile, and machine learning team members to design & build experiences that re-define retail shopping. You'll help help build engaging & intuitive More ❯

(Front End) with strong software experience and ambition to grow and develop their career. Responsibilities: Architect and implement scalable front-end solutions, contributing to overall system design and collaborating with cross-functional teams to ensure seamless integration within a complex, enterprise-grade platform. Develop clean, efficient, and maintainable … code using JavaScript and modern front-end frameworks (e.g., React), while leveraging broader language experience (Java, Python) to support full-stack collaboration. Collaborate with cloud infrastructure teams (AWS, Azure, or GCP) to support performance optimization, environment configuration, and scalable feature delivery in cloud-native applications. Establish and maintain CI/CD practices (e.g., GitHub Actions, Jenkins … contributing to the automation of testing, builds, and deployments across development environments. Lead and mentor front-end engineers, providing architectural guidance, driving framework adoption, and promoting front-end best practices across the engineering organization. Experience: Minimum 5 years’ experience working as a software developer in a commercial environment. Strong python programming experience. More ❯

(Front End) with strong software experience and ambition to grow and develop their career. Responsibilities: Architect and implement scalable front-end solutions, contributing to overall system design and collaborating with cross-functional teams to ensure seamless integration within a complex, enterprise-grade platform. Develop clean, efficient, and maintainable … code using JavaScript and modern front-end frameworks (e.g., React), while leveraging broader language experience (Java, Python) to support full-stack collaboration. Collaborate with cloud infrastructure teams (AWS, Azure, or GCP) to support performance optimization, environment configuration, and scalable feature delivery in cloud-native applications. Establish and maintain CI/CD practices (e.g., GitHub Actions, Jenkins … contributing to the automation of testing, builds, and deployments across development environments. Lead and mentor front-end engineers, providing architectural guidance, driving framework adoption, and promoting front-end best practices across the engineering organization. Experience: Minimum 5 years’ experience working as a software developer in a commercial environment. Strong python programming experience. More ❯

Frontend Software Engineer | Hybrid | London | Up to 80k + 10% bonus About the Company Albert Bow has partnered with a fast moving startup backed by a major European financial services group. They're building a cutting edge data intelligence platform for the private capital markets, offering modern, scalable tools to some of the leading investors in … Europe. About the Role We’re looking for a skilled Frontend Software Engineer to help deliver new features and improvements across our platform. You’ll work closely with a collaborative engineering team, contributing to both frontend and full-stack development, with the opportunity to influence architecture, design, and best practices as the platform scales. Your Responsibilities More ❯

Frontend Software Engineer | Hybrid | London | Up to 80k + 10% bonus About the Company Albert Bow has partnered with a fast moving startup backed by a major European financial services group. They're building a cutting edge data intelligence platform for the private capital markets, offering modern, scalable tools to some of the leading investors in … Europe. About the Role We’re looking for a skilled Frontend Software Engineer to help deliver new features and improvements across our platform. You’ll work closely with a collaborative engineering team, contributing to both frontend and full-stack development, with the opportunity to influence architecture, design, and best practices as the platform scales. Your Responsibilities More ❯

New Role: Lead Product Engineer (Frontend Leaning) – Up to £180,000 🚨 We’re excited to partner with a profitable SaaS startup experiencing rapid growth and strong ARR in a short timeframe. Due to increasing customer demand, they’re expanding their engineering team and looking for product-minded engineers to join them on their journey. 💼 Role Details … Title: Lead Product Engineer Location: Hybrid – 3 days/week in Central London office Salary: Up to £180k + Equity Tech Stack: TypeScript, React, Next.js, little bit of GO - no prior experience needed This is a hands on role ✅ What They’re Looking For Engineers who think like product owners Prior startup success or fast-paced … a high-growth , product-led team Build features that directly impact customer success Work with a smart, driven team and cutting-edge tech 🚨 New Role: Lead Product Engineer (Frontend Leaning) – Up to 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 ❯

products that transform how businesses use technology. They are looking for highly talented engineers who are ambitious, driven, and eager to make an impact. Roles Available: 🔹 Frontend Engineer – Strong expertise in TypeScript and React 🔹 Full-Stack Engineer – Solid experience with Python and modern web frameworks What We’re Looking For: ✔️ A degree More ❯