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Developer United Kingdom, London Jobs (Hybrid work)

75 Job Offers

React Native Lead Developer
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We are seeking a React Native Lead Developer in London to drive mobile innovation. You will provide technical leadership, delivering high-quality iOS and Android applications using GraphQL and RESTful APIs. This role demands a strong grasp of the full mobile development lifecycle and a passion fo...
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95000.00 GBP / Year
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Until further notice
Quantitative Developer
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Join a leading global hedge fund as a Python Quantitative Developer in London. You will build high-performance trading models and infrastructure, collaborating directly with Portfolio Managers and Quants to drive P&L. This role demands strong Python skills, financial market knowledge, and a quant...
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180000.00 GBP / Year
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Lead Developer – VP – XVA Technology
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Lead VP-level Quant Developer role in Citi’s London Equities Tech team. You will engineer production-grade trading analytics and real-time risk tools for Derivatives Flow and Exotics, working directly with traders. Requires deep Python data engineering (Pandas, FastAPI, Airflow) plus financial co...
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FX E-Trading Technology Java Developer - VP
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Join Citi as an FX E-Trading Technology Java Developer (VP) in London. Drive ultra low-latency trading solutions, replacing legacy systems and collaborating with trading and quant teams. Requires deep FX knowledge, hands-on Java expertise, and strong communication skills. Enjoy 27 days leave, bon...
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Java Developer
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Join Citi’s London Tech team as a Java Developer and engineer the future of global finance. You’ll design microservices, build RESTful APIs, and leverage AI tools like GitHub Copilot, requiring 3-8 years of Java, Spring Boot, and Kafka experience. Enjoy 27 days leave, a bonus, private medical car...
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C#.Net Developer
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Join a top-tier investment management firm in Central London as a C# .NET Developer. You’ll build real-time asset tracking platforms and high-availability distributed systems, integrating data from Bloomberg and Refinitiv. Strong C#, Azure, and advanced SQL skills are essential, along with excell...
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55000.00 - 75000.00 GBP / Year
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Senior React Developer
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Senior React Developer sought by elite FinTech firm in London to build greenfield, enterprise-grade trading applications. You will design dynamic UIs and data-intensive tools for global teams, leveraging deep React expertise. Requires a STEM degree and strong communication skills. Benefits includ...
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180000.00 GBP / Year
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Backend Software Developer (Python)
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Backend Software Developer (Python) sought for a London AI startup. You will design high-performance systems using Python and FastAPI, handling real-time data. We need expertise in RESTful APIs, scalability, and a proactive mindset. Enjoy a £100k salary, hybrid work, and genuine ownership of cutt...
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100000.00 GBP / Year
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Software Developer (Python)
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Join an elite London tech firm that sets world records and treats software engineers as its #1 asset. We seek a Python Developer with deep software engineering principles and a passion for pushing technology to its limits. You will build scalable, high-performance platforms alongside top-tier tal...
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140000.00 GBP / Year
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Senior Full Stack Developer
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Senior Full Stack Developer sought by an innovation-led London organisation using AI and digital products to solve complex societal challenges. This hands-on role involves owning a core platform, building new features with React, TypeScript, and C#, and integrating AI capabilities. You will enhan...
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65000.00 - 75000.00 GBP / Year
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Python Risk Developer - Vice President
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Join Citi as a Python Risk Developer – Vice President in London, driving the re-engineering of a front-office commodities trading platform. You’ll design high-performance Python micro-services, collaborate with traders and risk managers, and tackle challenges in data modeling and distributed comp...
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Efx Senior Java Developer
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Join UBS Global Markets as an eFX Senior Java Developer in London. You will design low-latency, high-throughput algorithmic trading platforms, collaborating with quantitative analysts on pricing and execution strategies. This role involves full ownership of initiatives, from market connectivity t...
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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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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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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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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.