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Developer United Kingdom, London Jobs

235 Job Offers

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Senior Analyst Developer
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Senior Analyst Developer role in London with Citi’s Risk & Capital Technology team. You will build Counterparty Credit Risk solutions using Java, Spring, and cloud technologies (Docker, Kubernetes). Requires deep capital markets knowledge, derivatives expertise, and strong engineering leadership....
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United Kingdom , London
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Citi
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New
Senior Unica Developer
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Senior Unica Developer sought for a London-based role to lead complex campaign delivery, technical configuration, and platform optimisation. You will drive audience selection, cross-channel consistency, and mentor developers using Pega and Unica. Requires strong campaign management, agile experti...
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United Kingdom , London
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Not provided
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Vodafone
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C# Developer - Equity Derivatives Technology Risk (AVP)
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Join a top-tier financial team as a C# Developer in London, focusing on Equity Derivatives Technology Risk. You'll leverage strong .NET skills, performance optimization, and unit testing expertise to build high-volume, low-latency trading systems. Experience with Python, Kafka, and CI/CD tools is...
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United Kingdom , London
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Citi
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C# Developer - Equity Derivatives Technology Risk (AVP)
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Join Citi as a C# Developer in London, driving Equity Derivatives Technology Risk. Leverage strong .NET skills, low-latency financial systems expertise, and CI/CD tools to engineer next-gen trading platforms. Enjoy 27 days leave, bonus, private medical care, and hybrid work. Shape global finance ...
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United Kingdom , London
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Citi
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Java Software Developer
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Join Barclays in London as a Java Software Developer to design scalable pricing systems and automate financial workflows. Leverage your Core Java expertise and financial services experience in a Linux environment. Collaborate with a skilled engineering team to build client automation solutions an...
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United Kingdom , London
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Barclays
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Senior Developer
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Senior Developer sought to redefine a market in London, UK. You will code in a cloud-native environment, building distributed services, APIs, and data-driven applications at scale. Key requirements include strong Java fundamentals, microservices architecture, and experience with relational/NoSQL ...
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United Kingdom , London
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100000.00 - 120000.00 GBP / Year
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Linux Recruit
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Senior Software Developer
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Senior Software Developer sought for a strategic, business-critical platform at a global financial services firm. This hands-on role requires strong Java backend expertise and experience building scalable applications within complex environments. Based in London with a hybrid model, you'll shape ...
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United Kingdom , London
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130000.00 GBP / Year
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Hunter Bond
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Python Developer
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Join a top London tech house as a **Python Developer**, building the world’s most scalable financial data platforms. You’ll leverage **Python**, **REST microservices**, and **big data tools** (Spark, Kafka) to solve complex challenges. Collaborate with elite engineers in a role offering a **£140,...
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United Kingdom , London
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140000.00 GBP / Year
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Hunter Bond
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Java Developer
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Seeking a skilled **Java Developer** for a hybrid role in **London**. You will build scalable enterprise applications using **Java 11+**, **Spring Boot**, and **microservices**. The role offers a competitive salary, private healthcare, and a flexible hybrid model (2-3 days in-office). Ideal for a...
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United Kingdom , London
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Myn
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Lead Java Developer (VP)
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Lead Java Developer (VP) sought by Citi in London to engineer the future of global finance. You will lead a team building high-volume, low-latency microservices using Java/Spring, with expertise in Fixed Income and Security Financing. This VP role demands deep Java internals knowledge and cloud-b...
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United Kingdom , London
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Citi
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React Developer
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Join a top quant trading firm as a React Developer, building greenfield, data-intensive web applications for real-time analytics. You’ll design high-performance UIs using TypeScript and React, collaborating with traders and quants in London. Ideal for engineers skilled in frontend architecture an...
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United Kingdom , London
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180000.00 GBP / Year
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Hunter Bond
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Full Stack Developer (React/Python)
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Join a top-tier FinTech firm in London as a Full Stack Developer (React/Python). Build real-time, enterprise-level applications for global trading operations. You’ll develop responsive UIs and scalable back-end systems, requiring strong React and Python skills plus a Computer Science degree. Enjo...
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United Kingdom , London
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180000.00 GBP / Year
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Hunter Bond
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Graduate Software/Quantitative Developer
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Join a top London firm as a Graduate Software/Quantitative Developer. You’ll design high-performance trading systems and implement quantitative models using Python, C++, or Java. Ideal for STEM graduates with strong analytical skills and a passion for data-driven challenges. Benefit from exceptio...
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United Kingdom , London
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Not provided
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Hunter Bond
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Graduate Quant Developer / Quant Researcher
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Graduate Quant Developer / Quant Researcher role at a top London quant trading firm. Join a world-class front-office team with an unlimited tech budget. Requires a top STEM degree, strong Python/C++ skills, and expertise in data structures, algorithms, and probability. Enjoy up to £150k base + bo...
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United Kingdom , London
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150000.00 GBP / Year
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Hunter Bond
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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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United Kingdom , London
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95000.00 GBP / Year
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Hunter Bond
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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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United Kingdom , London
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180000.00 GBP / Year
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Hunter Bond
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It Integrations Developer
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We are seeking an IT Integrations Developer to build and support modern applications and integrations across internal systems and external SaaS platforms in London. You will leverage PHP (v8+), Azure PaaS, and frameworks like Laravel to design scalable, secure API solutions. Key requirements incl...
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United Kingdom , London
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80000.00 GBP / Year
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Transact
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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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United Kingdom , London
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Citi
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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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United Kingdom , London
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Citi
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Quantitative Model Developer
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Join Barclays in London as a Quantitative Model Developer. Leverage your Master’s degree and Python expertise to build and maintain risk models for liquidity, collateral, and hedge accounting. Ideal for candidates with a strong background in financial mathematics and fixed income. Drive data anal...
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United Kingdom , London
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Not provided
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Barclays
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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.