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Senior Full Stack Software Engineer United Kingdom Jobs

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Full-Stack Senior Software Engineer, GenAI Data Products and Platform (VP)
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Join Citi as a VP Full-Stack Senior Software Engineer to build 'Citi Assist', a GenAI assistant for global employees. You’ll own end-to-end features using Python, TypeScript, and React, working with data pipelines and cloud infrastructure (OpenShift/Kubernetes). Based in London, this role offers ...
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United Kingdom , London
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Citi
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Senior Full Stack Software Engineer
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Join Retail Insight as a Senior Full Stack Engineer in Surrey/London. Design and build scalable analytics platforms using .NET Core, React, and modern databases. Enjoy a hybrid model, 25+ days leave, and strong career development in a collaborative team.
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United Kingdom , Surrey, Greater London
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Retail Insight
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Senior Full-Stack Software Engineer, (Forward Deployed), GPS
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Join Scale's Global Public Sector team in London as a Senior Full-Stack Engineer. Build impactful AI applications using React, TypeScript, Python, and cloud platforms. Partner directly with clients to deploy and architect scalable, production-grade solutions.
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United Kingdom , London
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Scale
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Senior Software Engineer, Full Stack - Fintech Airlines
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United Kingdom , London
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Hopper
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Full-stack Senior Software Engineer, GenAI Data Products and Platform
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United Kingdom , London
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Citi
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Senior Full Stack Software Engineer
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United Kingdom
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Octopus Energy
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Senior Full-Stack Software Engineer
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United Kingdom , London
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Heidi
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Senior Full Stack Software Engineer - ClickPipes Platform
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Join ClickHouse as a Senior Full Stack Engineer for the critical ClickPipes Platform. Build scalable React/TypeScript applications and backend systems at petabyte scale. Enjoy a remote role with autonomy, equity, and a flexible, distributed team environment in the UK.
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United Kingdom
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ClickHouse
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Senior Full-Stack Software Engineer
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Join our London team as a Senior Full-Stack Engineer. Drive innovation using Go, Python, and React within a product-focused, agile environment. Enjoy a hybrid model, 27 days leave, bonus, and comprehensive benefits while revolutionizing controls management.
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United Kingdom , London
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Citi
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About the Senior Full Stack Software Engineer role

Explore senior full stack software engineer jobs and discover a pivotal career at the intersection of technology and product innovation. A Senior Full Stack Software Engineer is a highly experienced professional responsible for the end-to-end development of software applications, mastering both client-side (front-end) and server-side (back-end) technologies. This role is central to transforming product visions into robust, scalable, and user-centric digital solutions. Professionals in these jobs act as technical leaders within product teams, often setting architectural standards and driving the entire software development lifecycle from conception to deployment and iterative improvement.

Typical responsibilities for senior full stack engineers are comprehensive. They design, develop, test, and maintain complex software systems. A key aspect is building and refining APIs, including integration with third-party services, and creating asynchronous, event-driven architectures capable of handling high traffic. These engineers take ownership of entire features or applications, ensuring delivery aligns with business goals, timelines, and budget. They champion code quality through rigorous testing, code reviews, and adherence to best practices. Collaboration is fundamental; they work closely with cross-functional partners, including product managers, designers, and other engineers, to understand user needs and translate them into functional, elegant features. Furthermore, they are expected to stay abreast of emerging technologies, advocate for technical excellence, and often mentor less experienced team members while fostering a culture of continuous improvement and agile methodologies.

The skill set required for senior full stack software engineer jobs is both broad and deep. Core technical proficiency typically includes advanced knowledge in several programming languages and frameworks, such as JavaScript (with libraries like React, Angular, or Vue.js) for the front-end, and languages like Python, Java, Go, Ruby (e.g., Rails), or Node.js for the back-end. Expertise in database design using both SQL and NoSQL systems is essential. Equally important is hands-on experience with cloud platforms, containerization (Docker, Kubernetes), microservices architecture, distributed systems, and DevSecOps practices encompassing CI/CD pipelines. Beyond technical acumen, successful candidates demonstrate strong problem-solving abilities, a keen product sense, and an experimentation mindset to validate ideas with data. Excellent communication and collaboration skills are paramount, as is a growth mindset to adapt in a fast-paced technological landscape. These roles generally require several years of proven experience in full stack development within product-driven environments, where the impact on the user and the business is the ultimate measure of success. If you are seeking senior full stack software engineer jobs, you are looking for a career that blends deep technical leadership with strategic product influence.

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