22 of 22 Senior Front-End Engineer (Client-Side Engineer) Jobs in London

Senior Frontend Engineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £120,000 plus excellent stock options Remote First – London Office for those who want it Next.js | React | Typescript | Node Are you a product-focused Senior Frontend Engineer … enjoys autonomy and wants to build products from end-to-end? If so, read on… Senior Frontend Engineer – We have been exclusively engaged by one of the most exciting tech start-ups in the … UK, who are looking for Senior Frontend Engineers as they will grow significantly in 2025. They are well-funded, revenue-generating and have found product market fit for their industry disrupting, AI-powered SaaS platform. The Senior Frontend Engineers will have a high degree of autonomy more »

Senior Frontend Engineer - THE AI Scale-Up of 2025 Future Unicorn Up to £120,000 plus excellent stock options Remote First - London Office for those who want it Next.js React Typescript Node Are you a product-focused Senior Frontend Engineer … enjoys autonomy and wants to build products from end-to-end? If so, read on Senior Frontend Engineer - We have been exclusively engaged by one of the most exciting tech start-ups in the … UK, who are looking for Senior Frontend Engineers as they will grow significantly in 2025. They are well-funded, revenue-generating and have found product market fit for their industry disrupting, AI-powered SaaS platform. The Senior Frontend Engineers will have a high degree of autonomy more »

Senior Frontend Engineer – Up to 80k – Remote First* – Automotive SaaS ECOM have teamed up with a tech company that build products for the automotive industry in a truly unique way, and they are looking for a Senior Frontend Engineer … its ground breaking software delivery engine and commitment to high engineering standards. Their product simplifies vehicle purchasing and revolutionises automotive financing. As a Senior Frontend Engineer, you'll collaborate closely with other frontend developers and be a mentor to more junior developers more »

Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London We’re now looking for a Senior Frontend Founding Engineer who’s passionate about creating tech … countless hours and generate impactful AI-driven reports and applications to secure more funding. In this role, you will write front-end and back-end code using JavaScript and TypeScript, shaping the architecture for both new and existing … a strong focus on user needs. Experience working with React, Next.JS, TypeScript. Passion towards building tech that makes an impact and changes lives. Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London more »

Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London We’re now looking for a Senior Frontend Founding Engineer who’s passionate about creating tech … countless hours and generate impactful AI-driven reports and applications to secure more funding. In this role, you will write front-end and back-end code using JavaScript and TypeScript, shaping the architecture for both new and existing … a strong focus on user needs. Experience working with React, Next.JS, TypeScript. Passion towards building tech that makes an impact and changes lives. Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London more »

Senior Frontend Engineer Innovative HealthTech Up to £95,000 p/a Senior Frontend Engineer Up to £95,000 per annum + benefits (see below) Innovative Mental Health Tech - transforming mental health support in … providing both those seeking and offering mental health support with the complete picture facilitating effective treatment. The Role We are looking for a Senior Frontend Engineer, with strong experience in a Typescript, React and AWS based stack and exposure to team and … processes, helping drive the company forward from an engineering perspective and uphold best engineering practices. What's in it for you? As a Senior Frontend Engineer, you can expect the following: Working at the forefront of the important challenge to improve the more »

Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London We’re now looking for a Senior Frontend Founding Engineer who’s passionate about creating tech … countless hours and generate impactful AI-driven reports and applications to secure more funding. In this role, you will write front-end and back-end code using JavaScript and TypeScript, shaping the architecture for both new and existing … find out more about the role, hit APPLY and I will (Sam Barcia) will give you a call to give you more info! Senior Frontend Founding Engineer | £80,000–£100,000 + Equity | AI for Charity Tech | TypeScript | React | North London more »

Role : Senior Front End Engineer Salary range : 90-100k (+ equity) Location : Central London | x4 (subject to change) days per week onsite Tech stack includes : React/Next.js, Typescript, GraphQL, WebSockets. Current team … size: x6 BE, x2 FE & x1 Quant researcher. Senior Front End Engineer required on a Permanent basis for a Fintech startup in London that operate in digital asset trading space providing liquidity and execution more »

Role : Senior Front End Engineer Salary range : 90-100k (+ equity) Location : Central London | x4 (subject to change) days per week onsite Tech stack includes : React/Next.js, Typescript, GraphQL, WebSockets. Current team … size: x6 BE, x2 FE & x1 Quant researcher. Senior Front End Engineer required on a Permanent basis for a Fintech startup in London that operate in digital asset trading space providing liquidity and execution more »

Senior Fullstack Engineer (Frontend weighted 80%) Salary: £70,000-84,000 Location: London, 2-3 days p/week Senior Fullstack Engineer (Frontend weighted) - would you like the opportunity to work for an innovative … organisation who are looking to remove the intolerability and unreliability of decision making when choosing your travel accommodation? You should be a competent Senior Fullstack Developer who enjoys working with TypeScript and React.js, as well as wanting to self-develop. As a Senior Fullstack Engineer more »

Senior Fullstack Engineer (Frontend weighted 80%) Salary: £70,000-84,000 Location: London, 2-3 days p/week Senior Fullstack Engineer (Frontend weighted) - would you like the opportunity to work for an innovative … organisation who are looking to remove the intolerability and unreliability of decision making when choosing your travel accommodation? You should be a competent Senior Fullstack Developer who enjoys working with TypeScript and React.js, as well as wanting to self-develop. As a Senior Fullstack Engineer more »

As a Senior Frontend Engineer, you will focus on building and refining user interfaces that prioritise both usability and performance, particularly when handling real-time data. This role bridges design and engineering, giving you the opportunity to shape and improve our product … experience. A full job-description is available here: https://immix.notion.site/Senior-Front-End-Engineer-15052c18ecb3801dbf90cb79185d6ce9 Please use the link at the bottom of the page to apply more »

Role : Senior Front End Engineer Salary range : 90-100k (+ equity) Location : Central London | x4 (subject to change) days per week onsite Tech stack includes : React/Next.js, Typescript, GraphQL, WebSockets. Current team … size: x6 BE, x2 FE & x1 Quant researcher. Senior Front End Engineer required on a Permanent basis for a Fintech startup in London that operate in digital asset trading space providing liquidity and execution more »

Senior Frontend Product Software Engineers - React/Typescript, Nextjs - London - Hybrid (3 days in office) £80-115K + Benefits + Equity The Role: We're (Userled) looking for strong Frontend Engineers that want to make a significant impact across product strategy, technical direction, and user experience on more »

As a Senior Frontend Engineer, you will focus on building and refining user interfaces that prioritise both usability and performance, particularly when handling real-time data. This role bridges design and engineering, giving you the opportunity to shape and improve our product more »

Senior Front End Software Engineer (Remote in Europe) A fantastic opportunity for a Senior Front End Software Engineer … Designing, testing and implementing the most resilient state machines for managing RFQs. Must have: 5+ years of experience as a software engineer A Bachelor’s degree in Computer Science, or a closely related field. Strong sense for design and UI/UX. Experience using more »

Role : Senior Front End/Full Stack Engineer Salary range : 100-120k (+ equity) Location : Central London | x2 days per week onsite Tech stack includes : React, Typescript Current team size: Senior Front End/Full Stack Engineer required on a Permanent basis for a EdTech startup in London that operate within the education sector, optimising the use of AI in learning. They have a strong more »

Role : Senior Front End/Full Stack Engineer Salary range : 100-120k (+ equity) Location : Central London | x2 days per week onsite Tech stack includes : React, Typescript Current team size: Senior Front End/Full Stack Engineer required on a Permanent basis for a EdTech startup in London that operate within the education sector, optimising the use of AI in learning. They have a strong more »

Senior UI Engineer, Front end - Up to a $200k plus equity and token grant (pre-release), Trading interfaces, London, React, CSS - Really highly regarded new Crypto Exchange - backed by Tier 1 VC's. We … re looking for a Frontend Staff Software Engineer who enjoys architecting and creating the desktop and mobile interfaces that are the face of a new DEX. - You will report directly to the CTO, architecting and implementing their desktop and mobile clients - Must be able more »

Job Description Senior Front End D3 Javascript Software Engineer - Holborn Our Client wants to recruit a Senior Front End Software Developer with … JavaScript object model Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools Experience with common front-end development tools such more »

teamed up with a fast growing Tech Consultancy (50 people in team) who are looking to expand their engineering team by hiring a Senior Frontend Engineer. You will work in a cross-functional team of Engineers and be assigned to a client project (clients consist of more »

used across products ● Spearhead the development of UIs, from concept to full interactivity Requirements ● 5-7+ years of professional front-end development experience ● A bachelor’s degree in computer science, engineering, a related IT field, or equivalent work experience ● Expert knowledge … and mobile ● Experience with Cypress, Playwright, and Vitest ● Experience with React ● Experience with AWS & AWS Lambdas ● Experience as a full-stack engineer ● Experience developing games and/or working with Unity ● A love for gaming more »