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Developer United Kingdom Jobs (Hybrid work)

285 Job Offers

C# Pricing Developer
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Join Barclays as a C# Pricing Developer in London, building and maintaining a cutting-edge options pricing engine for front office traders. You’ll leverage deep C# and .NET expertise, alongside DevOps tools, to deliver high-performance derivatives pricing solutions. Ideal candidates bring experie...
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United Kingdom , London
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Barclays
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Data Visualisation Developer
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Data Visualisation Developer role in London with a data-led tech company building insight-driven products. You will transform complex datasets into clear, engaging visual outputs, working closely with product, UX, and engineering teams. Strong experience with visualisation tools and a keen eye fo...
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United Kingdom , London
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Not provided
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Data Idols
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Senior Full Stack Developer
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Senior Full Stack Developer role in London with an innovation-led organisation using AI and digital products to solve complex societal challenges. You’ll own a core platform, build new features, integrate AI, and ensure scalability. Requires strong experience in React, TypeScript, C#, and AWS. A ...
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United Kingdom , London
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Salary
65000.00 - 75000.00 GBP / Year
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Data Idols
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Senior Python Developer
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Senior Python Developer needed in Belfast for Citi’s Wholesale Credit Risk Technology team. You will design innovative solutions using Python, FastAPI, and modern AI frameworks like LLMs and RAG. Requires 5+ years of enterprise development experience with CI/CD, Kubernetes, and strong collaborati...
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United Kingdom , Belfast
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Citi
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Lead Developer – VP – XVA Technology
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Lead Developer – VP – XVA Technology at Citi in London. Drive innovation in global finance with hands-on Java expertise and Generative AI. Lead automation, quality assurance, and product ownership in a hybrid role. Enjoy 27 days leave, bonus, private medical care, and continuous learning opportun...
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United Kingdom , London
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Citi
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Senior Java Developer - Fixed Income Algo Technology
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Senior Java Developer role in London, focusing on Fixed Income Algo Technology. You will design low-latency, high-throughput trading components using Core Java, Kafka, and Chronicle. Collaborate directly with Traders and Quants to build robust back-testing frameworks and live trading systems. Ben...
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United Kingdom , London
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Citi
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Lead Java Developer
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Lead Java Developer sought by Citi in London to engineer the future of global finance. You will lead real-time risk enhancements for Credit products, leveraging Core Java, Microservices, and AWS. This senior role demands expertise in JVM tuning, Kafka, and Front Office risk calculations. Enjoy 27...
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United Kingdom , London
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Citi
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Java Developer
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Join Barclays in London as a Java Developer. Design and enhance low-latency, high-throughput connectivity applications for global Futures and Options trading. Utilize Core Java and scripting skills within critical financial systems. Enjoy extensive benefits including private medical care, pension...
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United Kingdom , London
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Barclays
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Pricing Infrastructure Developer
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Join a leading reinsurance firm as a Pricing Infrastructure Developer in London. You will develop and enhance critical pricing tools and systems for the competitive UK life insurance market. This role requires strong programming skills (R, Python, SQL) and experience in actuarial pricing environm...
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United Kingdom , London
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Eames Consulting
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Visualfiles Developer
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Join our Liverpool team as a Visualfiles Developer. Design and enhance case management solutions using LexisNexis Visualfiles to streamline business processes. We seek a skilled developer with strong programming and problem-solving abilities for this hybrid role. Enjoy benefits including 25 days'...
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United Kingdom , Liverpool
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Not provided
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360 Resourcing Solutions
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BackEnd Technical Support Developer
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Backend Technical Support Developer role in London combining Node.js, React, TypeScript, and AWS. You’ll solve production issues, debug client problems, and collaborate with customer success teams. Requires 3+ years Node.js, strong JavaScript, REST API, SQL, and Git skills. Includes on-call bonus...
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United Kingdom , London
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50000.00 GBP / Year
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rmg digital
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Senior AI Developer
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Join WorkNest Secure in Leeds as a Senior AI Developer. Build and deploy production AI/ML models using Python, TensorFlow/PyTorch for cybersecurity threat detection. A hybrid role requiring cloud (AWS/Azure) and MLOps experience. Enjoy flexible working while pioneering proactive defence solutions.
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United Kingdom , Leeds
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WorkNest
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Senior GenAI Developer - Innovation Labs
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Lead the design and development of cutting-edge AI services at Citi Innovation Labs in London. This senior role requires deep expertise in Python, AI/ML, and cloud architectures to deliver complex, production-ready solutions. You will drive innovative projects, guiding technology vision and engag...
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United Kingdom , London
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Citi
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Java / Angular Software Developer
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Join a high-performing Agile team in Manchester as a Java/Angular Developer. You will design, develop, and maintain modern full-stack applications using Java, Spring Boot, and Angular. This role requires 5+ years of experience building RESTful APIs and scalable services. Strong skills in SQL/NoSQ...
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United Kingdom , Manchester
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RED Commerce - The Global SAP Solutions Provider
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Software Developer
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Join a leading London AI startup as a Software Developer. Utilize your expert Python and FastAPI skills to build scalable backend systems powering real-world AI innovation. You'll design high-performance APIs, handle real-time data, and shape the technical roadmap in a dynamic, collaborative envi...
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United Kingdom , London
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100000.00 GBP / Year
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Hunter Bond
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Packaging Developer
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Join our Deodorant Category Technology Centre in Leeds as a Packaging Developer. You will deliver innovative packaging for iconic brands, leading projects from concept to launch. We seek a technical expert with packaging development experience and strong project management skills. Enjoy a competi...
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United Kingdom , Leeds
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Not provided
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Unilever
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Microsoft Dynamics 365 CRM Developer
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Take technical ownership of a customised Microsoft Dynamics 365 CRM platform for a UK organisation. This hands-on developer role requires strong coding skills in D365, JavaScript/.NET, and Power Automate. You will manage wave updates, modernise the estate, and enhance Sales & Customer Insights. E...
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United Kingdom , Coventry
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60000.00 GBP / Year
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IN2 Consult
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Senior Front-End Developer
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Join Citi Tech in London to engineer the future of global finance. As a Senior Front-End Developer, you'll build a greenfield FX Options Trading Platform using React and TypeScript. Collaborate with global teams on real-time data applications and champion modern CI/CD practices. Enjoy a competiti...
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United Kingdom , London
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Citi
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Quantitative Developer
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Join Barclays in London as a Quantitative Developer. You will design and maintain high-performance analytics and trading platforms using Python and C++. This role focuses on the innovative Analytics Service, enhancing library APIs within financial risk and pricing systems. Strong communication an...
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United Kingdom , London
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Not provided
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Barclays
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Frontend Developer - React
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Join Xelix, a fast-growing AI fintech, as a Frontend Developer in London. You'll build scalable React applications using TypeScript and modern CSS, collaborating closely with designers. Enjoy a hybrid role with great benefits like private healthcare, a learning budget, and a dog-friendly office. ...
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United Kingdom , London
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Salary
60000.00 - 75000.00 GBP / Year
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Xelix
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About the Developer role

Discover the dynamic world of developer jobs, a cornerstone of the modern digital economy. Developers are the creative and technical masterminds behind the software, applications, and systems that power our daily lives. From the websites we browse to the mobile apps we use and the complex enterprise software running global businesses, developers are the architects of our digital future. This profession involves designing, coding, testing, and maintaining the software that drives innovation across every industry.

A developer's primary responsibility is the entire software development lifecycle. This begins with analyzing user needs and then designing robust software solutions to meet those requirements. The core of the role involves writing clean, efficient, and well-documented code in various programming languages. Developers build and maintain the backbone of applications, which includes creating and managing Application Programming Interfaces (APIs), backend services, and database structures. They are responsible for implementing key architectural patterns like microservices to ensure systems are scalable, reliable, and performant. A significant part of their work involves integrating different systems, such as connecting applications to databases, message queues, and third-party services.

Beyond initial creation, developers are tasked with continuous improvement and maintenance. This includes identifying and fixing bugs, optimizing applications for speed and stability, and implementing security best practices to protect against vulnerabilities. They conduct rigorous testing, including unit and integration tests, to ensure software quality. Furthermore, developers collaborate closely with other teams, such as frontend engineers, quality assurance (QA) specialists, and DevOps teams, to enable seamless continuous integration and deployment (CI/CD) pipelines. In many modern environments, developers also work on containerizing applications using tools like Docker and orchestrating them with platforms like Kubernetes. For senior and leadership roles, responsibilities expand to include mentoring junior team members, managing project timelines, making strategic technology decisions, and overseeing a team's output and professional development.

Typical skills and requirements for developer jobs are diverse. A strong foundation in computer science principles is essential. Proficiency in one or more programming languages (such as Go, Java, Python, JavaScript, or C#) is a fundamental requirement. Developers must understand software architecture, including concepts like RESTful APIs, microservices, and event-driven systems. Experience with databases (SQL and NoSQL), version control systems like Git, and operating systems is standard. As the field evolves, knowledge of cloud platforms (AWS, Azure, GCP), containerization, and infrastructure-as-code is increasingly valuable. Crucially, soft skills are just as important; problem-solving abilities, analytical thinking, clear communication, and the capacity to work collaboratively in a team are highly sought after. Most positions require a bachelor's degree in computer science or a related field, or equivalent practical experience. Whether you are an entry-level programmer or an experienced applications development manager, developer jobs offer a challenging and rewarding career path for those passionate about building the technology of tomorrow.