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Developer United Kingdom, London Jobs (Hybrid work)

75 Job Offers

Java Developer React
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C# Developer
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Java Developer (React)
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Senior Developer C# React Investment Banking
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Designer / Developer – Accessories
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Senior Credit Systematic Trading Developer
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Senior Credit Systematic Trading Developer sought by a global financial institution to build next-gen electronic trading technology in London. You will design high-performance systems using Java, Python, and distributed architectures (Kafka, KDB+). Collaborate directly with traders and quants on ...
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Oracle Ebs Developer
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Experienced Oracle EBS Developer needed for a 12-month contract with a major financial services firm in London. You will lead a large-scale General Ledger migration to EDS, starting from the planning phase. Requires 5+ years of Oracle EBS 12.2.4 expertise, strong SQL/PL/SQL, and deep knowledge of...
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750.00 GBP / Day
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Senior Oracle Developer
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Senior Oracle Developer needed for a long-term contract in London, supporting a large-scale enterprise transformation programme. You will develop and enhance Oracle EBS (12.2.x) applications, leveraging strong SQL, PL/SQL, and Oracle Financials (GL, AP, AR) expertise. Ideal for experienced develo...
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800.00 GBP / Day
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Java/Python Software Developer - Risk
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Join a leading global financial organisation as a Java/Python Software Developer in London. You will design scalable backend systems and microservices for critical risk data and analytics. Strong experience with Java (Spring Boot) or Python, plus exposure to risk technology, is required. This rol...
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750.00 GBP / Day
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Java (Kotlin) Developer (Agile, Test-Driven) Avp
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Join Citi’s Prime Brokerage Technology team in London as a Java (Kotlin) Developer AVP. Engineer high-impact financial systems using Test-Driven Development, Agile, and CI/CD. Ideal for developers with expertise in Java, Kotlin, cloud, and messaging technologies. Enjoy 27 days leave, bonus, priva...
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Shopify Developer
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We are seeking a talented Shopify Developer to join our London digital product team, owning the front-end of our multi-store platform. You will leverage expertise in Liquid, Shopify CLI, and CI/CD pipelines to standardise themes and deliver high-performance shopping experiences. This role demands...
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50000.00 - 70000.00 GBP / Year
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Full-stack Java Developer for Systematic & Credit Portfolio Trading Tools
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Join Citi as a Full-stack Java Developer in London, building systematic and credit portfolio trading tools. You'll collaborate with traders and quants to develop high-impact applications using Java, Python, and React. Leverage Kubernetes, Docker, and CI/CD pipelines in a hybrid environment. Enjoy...
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Junior C# Quantitative Developer
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Join a leading London hedge fund as a Junior C# Quantitative Developer. You will build high-performance trading systems, implement pricing models, and optimize data pipelines alongside top quants and traders. Requires strong C# / .NET skills, a quantitative degree, and analytical mindset. Benefit...
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75000.00 GBP / Year
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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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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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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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130000.00 GBP / Year
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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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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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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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180000.00 GBP / Year
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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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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.