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Senior Software Engineer, Front-End or Full Stack United Kingdom Jobs (Hybrid work)

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Senior Full Stack Engineer
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Join PolyAI as a Senior Full Stack Engineer in London. Develop cutting-edge AI voice assistants using Python, React, and Next.js in a high-ownership role. Enjoy a flexible remote policy, extended holidays, and share options while mentoring a collaborative team.
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United Kingdom , London
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PolyAI
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Until further notice
Senior Full Stack Java Developer
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Join a leading OTC derivatives technology team in Belfast, driving a major tech transformation. As a Senior Full Stack Java Developer, you will build robust solutions using Java, Spring, and Angular. We seek an engineer passionate about TDD, clean code, and distributed systems like AWS or Kafka.
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United Kingdom , Belfast
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Citi
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Lead Full Stack Java Developer
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Lead Full Stack Java Developer role in Belfast. Drive tech transformation for OTC derivatives, using Java, microservices, and cloud platforms. Lead a team, architect solutions, and foster a strong engineering culture in a global investment bank.
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United Kingdom , Belfast
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Citi
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Java Full Stack Developer
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Seeking a Senior Java Full Stack Developer in Belfast. Design and develop enterprise applications using Java, Spring, and Angular/React. Enjoy extensive benefits including bonus, private healthcare, and 27 days leave. Lead high-impact projects in a collaborative tech environment.
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United Kingdom , Belfast
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Citi
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Java Full Stack Developer
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Join our Belfast team as a Senior Java Full Stack Developer. You will design and enhance a critical enterprise-wide client data system using Java, Spring, and Angular/React. This role offers a performance bonus, private medical care, and 27 days annual leave. Apply your expertise to lead innovati...
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United Kingdom , Belfast
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Citi
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Java/ Full Stack Developer
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Join our Belfast team as a Java/Full Stack Developer. You will build scalable enterprise applications using Java, Spring, and modern front-end frameworks like Angular/React. This role offers a competitive package including bonus, private healthcare, and 27 days annual leave, while contributing to...
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United Kingdom , Belfast
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Citi
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Senior UI Server Full Stack Engineer - Fixed Income Tech
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Join Citi's Fixed Income Tech team in London as a Senior Full Stack Engineer. Design and develop robust, scalable applications using Java 8+, Spring Boot, and message-driven systems. Enjoy a hybrid model, performance bonus, private medical care, and 27 days annual leave.
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United Kingdom , London
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Citi
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Full Stack Developer - C#
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Join Clue in Bristol as a Full Stack C# Developer. Use .NET 8, Azure, and modern front-end frameworks like Angular or React to build innovative, AI-enhanced software. Thrive in an agile team with benefits like share options, private healthcare, and flexible working. Leverage tools like GitHub Cop...
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United Kingdom , Bristol
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Clue Software
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Senior Full Stack Engineer
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Join Dexory as a Senior Full Stack Engineer in Wallingford. Design and build customer-facing systems and robot fleet controls using React, TypeScript, Ruby on Rails, and PostgreSQL. Enjoy impactful work with full ownership, private healthcare, pension, and 25 days holiday.
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United Kingdom , Wallingford
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Dexory Using
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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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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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Not provided
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Intercom
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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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Until further notice
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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Salary
Not provided
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Citi
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Until further notice
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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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