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Senior Software Engineer, Front-End or Full Stack United Kingdom Jobs

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Full-Stack Engineer
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Join our UK team as a Full-Stack Engineer. Develop and maintain front-end and back-end components using TypeScript/React. Collaborate cross-functionally to build intuitive user interfaces and solve user problems. Enjoy an innovative culture with growth paths, learning stipends, and flexible co-wo...
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United Kingdom
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ElevenLabs
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Full-Stack Growth Engineer
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Join as a Full-Stack Growth Engineer in the UK, focusing on product-led growth for self-serve customers. You'll ideate and implement full-stack experiments to drive user acquisition, activation, and pricing optimization. This role blends engineering, product, and marketing, requiring strong full-...
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United Kingdom
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ElevenLabs
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Associate Full-Stack Engineer (Front-End Leaning)
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Join Encord in London as an Associate Full-Stack Engineer, with a front-end focus. You will have end-to-end ownership of projects, working across the stack to build reliable, performant software. We offer a competitive package with equity, in a role perfect for a proactive problem-solver ready to...
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United Kingdom , London
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Encord
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Full-Stack Engineer
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Join Encord, a fast-growing AI infrastructure startup in London, as a Full-Stack Engineer. Take end-to-end ownership of projects, working across the entire stack with Python and TypeScript. Enjoy a competitive package, equity, and the chance to solve complex problems at the cutting edge of comput...
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United Kingdom , London
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Encord
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Senior Full-Stack Engineer
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Join a London-based team at the forefront of AI infrastructure. As a Senior Full-Stack Engineer, you will build a complex platform for ML training data, handling multi-modal data (image, video, 3D) with high performance. Take end-to-end ownership using Python, TypeScript, and React in a cutting-e...
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United Kingdom , London
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Encord
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Senior Full-Stack Engineer
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Join a pioneering team in London building the future of AI infrastructure. As a Senior Full-Stack Engineer, you'll tackle immense scale in computer vision, owning projects end-to-end. We seek an experienced engineer who builds reliable, performant systems from scratch. Enjoy a competitive package...
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United Kingdom , London
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Encord
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Senior Full Stack Engineer
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Join a leading consultancy as a Senior Full Stack Engineer in London. You will design and build impactful features using Java, Spring Boot, TypeScript, and React.js. Leverage your Azure and DevSecOps expertise to enhance architecture and performance for real-time pensions and trading systems. Thi...
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United Kingdom , London
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Formula Recruitment
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Full Stack Angular Developer
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Join a leading AI & Machine Learning consultancy as a Full Stack Angular Developer in Cheshire. Utilize your expertise in Angular, C#, .NET Core, and SQL Server to build end-to-end, high-impact software solutions. Enjoy a collaborative culture, 28 days leave, and work on cutting-edge real-world a...
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United Kingdom , Cheshire
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60000.00 - 75000.00 GBP / Year
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James Adams
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Full Stack Software Engineer
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Join Matillion in Manchester as a Full Stack Software Engineer. You will build and enhance our cloud platform using Java 11+/17 and React/TypeScript. This role offers a collaborative, agile environment with a focus on innovation and quality. Benefits include equity, health insurance, and 30 days ...
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United Kingdom , Manchester
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44000.00 - 66000.00 GBP / Year
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Matillion
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Full Stack Engineer
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Join a leading nature tech company as a Full Stack Engineer in London. Build a transformative biodiversity platform using React, TypeScript, and Go/Python. Work with microservices, Neo4j, and cloud tech to deliver impactful, end-to-end features. Enjoy competitive benefits, professional growth, an...
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United Kingdom , London
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NatureMetrics
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Full-Stack Engineer (Data)
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Seeking a Full-Stack Engineer with AI expertise to architect and build the foundation of our AI Roadmap in the mental health sector. You will lead the design of LLM-driven products using TypeScript, Node.js, and AWS serverless services. This UK-based role offers a competitive salary, flexible rem...
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United Kingdom
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Spectrum Life
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Frontend-leaning full-stack engineer
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Join a leading European AI startup in London, redefining legal tech. As a frontend-leaning full-stack engineer, you'll craft novel, human-centric UIs with React/TypeScript and work across Python/Postgres. We seek deep frontend expertise, a strong UX sense, and comfort in a fast-paced, high-owners...
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United Kingdom , London
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150000.00 GBP / Year
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Arrows Groupe
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Backend-leaning Full-stack Engineer
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Join a high-growth AI startup in London as a Backend-leaning Full-stack Engineer. Build scalable backend infrastructure and data pipelines from scratch using Python and PostgreSQL. Enjoy greenfield product work, equity, and full visa sponsorship with relocation support.
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United Kingdom , London
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150000.00 GBP / Year
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Arrows Groupe
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Senior Full Stack Engineer
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Join Team Web as a Senior Full Stack Engineer in London. Shape the future of Intercom's core website using React, Next.js, and AWS. Build robust, full-stack solutions while collaborating with marketing and design teams. Enjoy competitive salary, equity, comprehensive benefits, and a stocked kitchen.
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United Kingdom , London
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Intercom
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Web Developer - Full Stack
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Join a fast-growing Ecommerce brand as a Full Stack Web Developer. This mainly remote role requires Shopify app development expertise with HTML, CSS, JavaScript, and API integration. Leverage your skills in a dynamic team, with a salary up to £50k + benefits and occasional London visits.
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United Kingdom , London
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50000.00 GBP / Year
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Blu Digital
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Senior Web Developer - Full Stack
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Join a leading entertainment group in London as a Senior Full Stack Web Developer. You will build web applications using Ruby, React, HTML, JSS, and JavaScript within an Agile environment. This is a key role for an experienced developer seeking a new challenge with a competitive benefits package.
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United Kingdom , London
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60000.00 GBP / Year
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Blu Digital
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Web Developer - Full-Stack
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Join a leading entertainment group in London as a Full-Stack Web Developer. You will build web applications using Ruby, React, HTML, JSS, and JavaScript. The role requires experience with Agile methodologies and offers a comprehensive benefits package.
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United Kingdom , London
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50000.00 GBP / Year
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Blu Digital
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Senior Full Stack Engineer - Fixed Income Tech
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Join Citi's Fixed Income Technology team in Manchester as a Senior Full Stack Engineer. Design and develop robust, low-latency applications using Java 8+, Spring Boot, and distributed systems. Enjoy benefits like a performance bonus, private medical care, and 27 days annual leave in this key elec...
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United Kingdom , Manchester
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Citi
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Full Stack Engineer
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Lead the architectural evolution of a cutting-edge Data & AI education platform as a Full Stack Engineer. You'll design scalable PostgreSQL schemas, build GCP APIs, and develop sophisticated UIs with Vue.js. This remote UK role offers a chance to mentor junior engineers and own complex features e...
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United Kingdom , Home based, UK (with occasional travel to our London office)
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Cambridge Spark
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Full Stack Developer
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Join a digital transformation journey as a Full Stack Developer in Hampshire. This backend-focused role involves building greenfield systems with C#, .NET, Azure, and React. You'll apply best practices, mentor juniors, and enjoy benefits like a bonus and private medical insurance.
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United Kingdom , Hampshire
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55000.00 - 65000.00 GBP / Year
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Hunter Selection | B Corp™
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Explore senior-level opportunities in cutting-edge technology with our curated list of Senior Software Engineer, Front-End or Full Stack jobs. These roles represent the pinnacle of web and application development, where seasoned professionals architect, build, and maintain the sophisticated digital products that power modern businesses and user experiences. Senior engineers in these domains are technical leaders, responsible for the entire software development lifecycle, from conceptualization and design to deployment, optimization, and ongoing iteration. They bridge the gap between complex business requirements and elegant technical solutions, ensuring systems are scalable, maintainable, and deliver exceptional user value. A Senior Front-End Engineer specializes in crafting the client-side layer that users directly interact with. Their core mission is to build intuitive, responsive, and high-performance user interfaces. Typical responsibilities include translating design mockups into functional, accessible code using frameworks like React, Angular, or Vue.js; optimizing applications for maximum speed and scalability; ensuring cross-browser compatibility; and implementing robust state management. They are deeply proficient in JavaScript/TypeScript, HTML, CSS, and modern build tools, with a keen eye for UX/UI principles and front-end performance metrics. A Senior Full Stack Engineer possesses mastery across both the front-end and back-end spectrum. They design and develop complete applications, handling everything from user-facing components to server-side logic, databases, and APIs. Common duties involve architecting overall system design, developing RESTful or GraphQL APIs, designing data models, writing server-side code in languages like Node.js, Python, or Java, and integrating with various data storage solutions. They ensure the seamless flow of data and functionality between the client and server, making critical decisions on technology stacks and infrastructure considerations. Typical skills and requirements for these senior roles extend beyond pure coding. Employers seek professionals with 5+ years of experience demonstrating a proven track record of shipping complex products. Expertise in modern frameworks and languages is a given, but equal emphasis is placed on software architecture, system design, and the ability to make long-term technical decisions. Strong collaboration skills are essential, as these engineers frequently work with product managers, designers, and other stakeholders to define requirements and translate them into technical specs. Leadership qualities such as mentoring junior developers, conducting code reviews, advocating for best practices, and driving technical excellence within a team are hallmarks of the position. A proactive problem-solving mindset, the ability to work in ambiguous environments, and a product-focused obsession with quality, performance, and user experience are the defining traits of successful candidates. Discover your next career-defining challenge by browsing our comprehensive selection of Senior Software Engineer, Front-End or Full Stack jobs today.

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