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Developer United Kingdom Jobs (Hybrid work)

287 Job Offers

B-Risk Developer
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Join Barclays as a B-Risk Developer in London to modernise the Macro business platform. You will design scalable, high-performance software for a robust intraday risk system, collaborating with traders and quants. Strong C# skills and financial services experience are essential; Redis or Kafka kn...
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United Kingdom , London
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Not provided
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Barclays
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Java (Kotlin) Developer (Agile, Test-Driven)
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Senior Java/Kotlin Developer needed to engineer the future of global finance at Citi in London. Drive innovation on the Core Prime Brokerage platform using TDD, cloud technologies (Kubernetes), and messaging systems (Kafka). Lead an agile team, champion CI/CD, and enjoy 27 days leave, bonus, and ...
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United Kingdom , London
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Citi
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Quant Developer – Trading Analytics – Equity Derivatives Tech
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Quant Developer role in Citi’s London Equity Derivatives Tech team. Build real-time trading analytics, pricing, and risk tools for Derivatives Flow and Exotics. Requires Python data engineering (Pandas, FastAPI, Airflow), financial concepts (Equities/Options), and AI-native development experience...
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United Kingdom , London
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Citi
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Developer - Dynamics 365 CE
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Join a high-impact team in Brentford as a **Dynamics 365 CE Developer**. You will design and deliver customisations, integrations, and Power Platform solutions, leveraging **C#/.NET**, **JavaScript**, and **Azure DevOps**. This role offers technical leadership, 30 days holiday, private healthcare...
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United Kingdom , Brentford
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70000.00 - 75000.00 GBP / Year
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360 Resourcing Solutions
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Senior Java Developer (AVP)
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Senior Java Developer (AVP) at Citi in Belfast. Join a global team redefining finance, building high-scale systems that process $5 trillion daily. You will develop robust applications using Core Java, Spring Boot, and Microservices, with hands-on AI tool experience. Enjoy 27 days leave, bonus, pr...
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United Kingdom , Belfast
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Citi
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Front End Developer
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Join Charles Tyrwhitt as a Front End Developer in London. You'll enhance our Salesforce Commerce Cloud platform and lead the migration to PWA or Storefront Next. We seek strong HTML5, CSS3, JavaScript, and React skills, plus ecommerce experience. Enjoy a competitive salary, hybrid working, and st...
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United Kingdom , London
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Charles Tyrwhitt
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SharePoint Developer and Administrator
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Senior SharePoint Developer & Administrator sought in London to lead migration from SharePoint 2016 to modern platforms (SE & Online). This role combines hands-on SPFx development with platform administration, including intranet design, governance, and system upgrades. Requires expertise in TypeS...
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United Kingdom , London
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Eutopia
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Lead Full Stack Developer
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Lead Full Stack Developer sought to design and build cloud-native services for Vodafone’s next-gen Digital & IT Platform in London. You will shape APIs and microservices using Java, Node.js, and React within agile squads. Requires 7+ years’ experience with Kubernetes, Docker, and AWS/Azure. Join ...
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United Kingdom , London
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Vodafone
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Ui Developer (.Net/React)
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Senior UI Developer (.NET/React) sought for Citi’s Belfast team to transform legacy UI into modern React/HTML5 components. Requires expertise in .NET/C#, React, HTML5, CSS3, JavaScript, and test frameworks. Enjoy 27 days annual leave, private medical care, performance bonus, and pension plan. Dri...
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United Kingdom , Belfast
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Citi
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Frontend Developer - React
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Join a growing team as a Frontend Developer (React) in London. You’ll build robust UI components using React, Redux, and TypeScript, collaborating on features from Figma designs. We value clean code, testing with Jest/Playwright, and problem-solving. Enjoy a competitive £60k-£75k salary, hybrid w...
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United Kingdom , London
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60000.00 - 75000.00 GBP / Year
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Xelix
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Lead Java Developer
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Lead Java Developer sought by Citi in Belfast to define architecture and build scalable, high-performance applications. You will leverage Java, RESTful services, and AI-powered tools while mentoring junior team members. This role demands expertise in clean coding, SOLID principles, and code quali...
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United Kingdom , Belfast
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Citi
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Quantitative Developer
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Senior Quantitative Developer sought by a leading London fintech team to build advanced research frameworks. You will design robust Python systems using NumPy, Pandas, and PyTorch, productionise models, and develop scalable data pipelines. Requires 7+ years’ experience in quantitative development...
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United Kingdom , London
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Hunter Bond
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Front End Developer
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Join a high-growth construction tech company as a Front End Developer in Hitchin, UK. You’ll build modern web and mobile apps using React.js and JavaScript, integrating with hardware on live infrastructure projects. Ideal for engineers with 5+ years of experience in agile, fast-moving teams. Enjo...
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United Kingdom , Hitchin
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60000.00 - 70000.00 GBP / Year
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rmg digital
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C# Developer
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Join a global tech consultancy as a **C# .NET Developer** on a major UK enterprise transformation programme. You’ll build scalable backend applications in a modern, cloud-first environment using **Azure** (App Services, Functions, SQL, Service Bus) and **Azure DevOps**. Ideal for a hands-on devel...
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United Kingdom , London
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Xcede
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Vb6 Developer
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Whitehall Resources seeks a VB6 Developer for a 6-month contract in Shropshire (2 days onsite, rest remote, inside IR35). You will support the critical CESA system within a legacy estate, developing LDC components and resolving defects. Ideal candidates have strong core development skills, experi...
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United Kingdom , Shropshire
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Whitehall Resources Ltd
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Python Counterparty Credit Risk Senior Developer, Vice President
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Senior Python Developer, Vice President role at Citi in London, driving counterparty credit risk applications within the Analytical Calculation Engine (ACE) team. Expert-level Python, derivatives pricing, and CI/CD skills required. Collaborate with Quant and Front Office teams on distributed comp...
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United Kingdom , London
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Citi
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Senior Salesforce Developer
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Senior Salesforce Developer sought to lead Service Cloud and Experience Cloud solutions in London. This hybrid role demands proven Salesforce expertise, Agile experience, and full SDLC proficiency. You will design scalable solutions, leverage CI/CD tools, and collaborate with stakeholders to enha...
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United Kingdom , London
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73000.00 - 85000.00 GBP / Year
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360 Resourcing Solutions
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Algo Developer
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Join a leading institutional digital asset firm as an Algo Developer in London. You will design low-latency EMS and Smart Order Routers from the ground up, leveraging 8+ years of Java expertise in front-office environments. Build execution algorithms for FX, equities, or crypto markets. Enjoy top...
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United Kingdom , London
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Salary
150000.00 GBP / Year
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Harrington Starr
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Java Quantitative Developer
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Join a leading institutional digital asset firm as a Java Quantitative Developer on their London crypto trading desk. You will design and ship algorithmic trading strategies, build pricing and hedging frameworks, and optimize low-latency systems. Strong Java skills and front-office experience wit...
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United Kingdom , London
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170000.00 GBP / Year
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Harrington Starr
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Senior PHP Developer
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Senior PHP Developer (Symfony) – Leeds, Hybrid (2 days onsite). Up to £65,000. Join a collaborative tech team building scalable web platforms and APIs for a global education leader. You’ll own backend development, refactor code, and mentor juniors. Ideal for a senior engineer with strong PHP, MyS...
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United Kingdom , Leeds
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60000.00 - 65000.00 GBP / Year
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Fynity
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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.