976 to 1,000 of 1,417 Java Jobs in London

Role: Software Engineer (Java, TypeScript, JavaScript, NodeJS, ReactJS, Python) Location: Remote working with some meetings at offices either in Manchester or London. IR35 status: Outside Length of contract: 5 months initial contract (with a view to possible extension) Overview We are seeking a Software Engineer to support the delivery and maintenance of shared engineering components and templates across our client More ❯

Duration of assignment: 1 year (potential prolongation) Onsite requirements: 3 days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with More ❯

Duration of assignment: 1 year (potential prolongation) Onsite requirements: 3 days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with More ❯

Duration of assignment: 1 year (potential prolongation) Onsite requirements: 3 days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with More ❯

Duration of assignment: 1 year (potential prolongation) Onsite requirements: 3 days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with More ❯

Java Developers - (SaaS) We are working with a leading SaaS company, who specialise in building AI Products. They are looking for a Java Developers, ideally with some React.JS to join their team Year's of experience - 1-5 years Stack; Java 17/21 AWS TDD CI/CD React.js/TypeScript This role is 3 days a week in More ❯

Java Developers - (SaaS) We are working with a leading SaaS company, who specialise in building AI Products. They are looking for a Java Developers, ideally with some React.JS to join their team Year's of experience - 1-5 years Stack; Java 17/21 AWS TDD CI/CD React.js/TypeScript This role is 3 days a week in More ❯

of senior and intermediate engineers Promote a culture of strong collaboration, share best practice, propose improvement Point of contact with stakeholders and the NY team 8+ years of professional java experience Strong knowledge of data structures and algorithms SQL experience Knowledge of at least one scripting language (shell, python, perl etc.) Knowledge of network programming fundamentals Bachelors degree in Computer More ❯

of senior and intermediate engineers Promote a culture of strong collaboration, share best practice, propose improvement Point of contact with stakeholders and the NY team 8+ years of professional java experience Strong knowledge of data structures and algorithms SQL experience Knowledge of at least one scripting language (shell, python, perl etc.) Knowledge of network programming fundamentals Bachelors degree in Computer More ❯

minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally More ❯

minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally More ❯

minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally More ❯

minimum of five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally More ❯

URGENT OPPORTUNITY KDB+ Java Developer UK Hybrid 6+ Months Contract (Extendable) One of our international banking clients in the United Kingdom is urgently looking for an experienced KDB+ Java Developer . This is a high-priority role offering competitive daily rates , with interviews scheduled within 2448 hours! Role: KDB+ Java Developer Start Date: ASAP Contract Duration: 6 months (with possible … Location: United Kingdom (Hybrid flexibility for remote work) Language: English Industry: Banking/Financial Services Key Requirements: Strong hands-on experience with KDB+ and Q programming. Proven background in Java development (preferably within financial systems). Experience working in banking, trading, or financial markets environments. Excellent problem-solving and communication skills. Ability to work effectively in a hybrid setup with More ❯

Senior Java Engineer Product Engineering B2B SaaS Insurtech Up to 120,000 per annum plus bonus and excellent pension London 2 days a week Java Spring Boot AWS Kubernetes Event-Driven Architecture Senior Java Engineer We have been exclusively engaged by a leading B2B SaaS technology business to find a Senior Java Engineer with a product engineering mindset to join … parent organisation but operating with the freedom of a scale-up, the company offers the best of both worlds: long-term security and the agility to innovate. The Senior Java Engineer will play a central role in designing, building, and scaling products that deliver tangible business value. Working closely with Product and the business, you will be leading technical initiatives … to write code. The role requires someone who enjoys solving complex challenges, influencing architectural decisions and building scalable, resilient systems. Designing and developing production-ready features and services in Java (Spring Boot) and cloud-native environments. Working collaboratively with Product Managers and teammates to balance the delivery of new features with long-term technical improvements. Owning code from idea through More ❯

architecture with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and More ❯

architecture with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and More ❯

React Native Developer - London - Hybrid Working - £90,000-£100,000 p/a - React Native, TypeScript, Some knowledge of Objective-C/Swift/Java/Kotlin Christopher Ali are recruiting on behalf of a prestigious data company who are on the lookout for a Senior React Native Developer to join their team. The role will require 1 day per More ❯

React Native Developer - London - Hybrid Working - £90,000-£100,000 p/a - React Native, TypeScript, Some knowledge of Objective-C/Swift/Java/Kotlin Christopher Ali are recruiting on behalf of a prestigious data company who are on the lookout for a Senior React Native Developer to join their team. The role will require 1 day per More ❯

architecture with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and More ❯

architecture with direct ownership of RFx processes and multiple successful £5m+ bids Broad architecture experience across cloud platforms, application integration, and modernisation strategies Strong technical foundation in backend engineering (Java, C#) and modern application development practices Consultative selling expertise with ability to shape client requirements and drive solution differentiation Exceptional presentation and stakeholder management skills - comfortable influencing procurement committees and More ❯

React Native Developer - London - Hybrid Working - £90,000-£100,000 p/a - React Native, TypeScript, Some knowledge of Objective-C/Swift/Java/Kotlin Christopher Ali are recruiting on behalf of a prestigious data company who are on the lookout for a Senior React Native Developer to join their team. The role will require 1 day per More ❯

React Native Developer - London - Hybrid Working - £90,000-£100,000 p/a - React Native, TypeScript, Some knowledge of Objective-C/Swift/Java/Kotlin Christopher Ali are recruiting on behalf of a prestigious data company who are on the lookout for a Senior React Native Developer to join their team. The role will require 1 day per More ❯

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market making strategies. The Role … As a Senior Java Developer in an FX market making team, you will play a key role in designing, implementing, and optimising cutting-edge trading systems. You will work closely with quantitative researchers, traders, and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design … time trading environments. Provide mentorship and technical leadership to junior developers. Work in a fast-paced, agile environment where time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). More ❯

Java Developer – FX Low Latency Market Making A leading hedge fund with a global presence, specialising in quantitative trading and market making across multiple asset classes is seeking a highly skilled Senior Java Developer to join their rapidly expanding FX business to help design and build ultra-low-latency trading systems that power their electronic market making strategies. The Role … As a Senior Java Developer in an FX market making team, you will play a key role in designing, implementing, and optimising cutting-edge trading systems. You will work closely with quantitative researchers, traders, and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities Design … time trading environments. Provide mentorship and technical leadership to junior developers. Work in a fast-paced, agile environment where time-to-market is critical. Skills & Experience Required Expert-level Java development skills with deep knowledge of concurrency, memory management, and the JVM internals. 5+ years of experience building low-latency trading systems (preferably FX, but other asset classes welcome). More ❯