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L2 Support Engineer: Java/DB, Weekend TOIL – London

N Consulting Ltd is seeking an L2 Support Engineer based in London, United Kingdom. This contract position requires strong Java and database skills, along with good communication abilities. Candidates will be responsible for providing L2 support and will participate in weekend shifts, compensated with time off i ...

Senior Java Engineer (Equinox) – Equity Derivatives Tech – VP

**Senior Java Engineer (Equinox) – Equity Derivatives Tech – VP** Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can ...

Full Stack Engineer React/Java for Enterprise Platforms

Same platform, different brand. Your saved jobs and alerts as well as your log in details have moved with you. Maintain and enhance enterprise Java applications, including change requests,bug fixes, performance optimisation, and system stability improvements. Provide production support, i ...

Senior Java Engineer (Hybrid) Real Time Football Backend

Hawk-Eye Innovations is looking for a Senior Java Engineer to join our Football Squad. You'll develop and maintain backend services for live football events, using technologies such as Java, Spring Boot, and AWS. The role offers a hybrid work model requiring two days in the office each week and comes with compet ...

Senior Java Trader Tech Engineer – Front Office (Hybrid)

Harrington Starr is hiring a Java Electronic Trading Engineer to join their London team. You will develop low-latency crypto trading systems and collaborate with front office traders and product teams. The role requires over 10 years of experience in Java development, particularly in a front office environment. ...

Senior Java Rates Engineer Low Latency Trading (London)

A leading financial technology firm based in London is seeking an experienced Senior Rates Developer for a 12-month contract. The role involves developing low-latency pricing components and enhancing trading workflows. Ideal candidates will have strong Java server-side development skills and experience in Rates ...

Hybrid London: Senior Java Engineer, Low Latency Trading

A leading financial technology firm in London is seeking Senior and Principal Java Developers to work on high-performance trading systems. Ideal candidates will possess strong Java skills and experience in low-latency applications. This hybrid role allows for both remote work and on-site collaboration in Canary ...

Senior Full Stack Engineer (React/Go/Java) – FinTech

Java Script Works is looking for a Senior Fullstack Engineer in London, United Kingdom. The role involves building user-facing features and core system components using a tech stack that includes React, Go, Node.js, and Java. Candidates are expected to work autonomously while maintaining quality through effectiv ...

Senior Java Algo Engineer, Fixed Income Trading (Hybrid)

Citibank (Switzerland) AG is hiring a Software Engineer for its Fixed Income Algo team in London. In this role, you will design and develop components for a high-performance algo trading platform, collaborating closely with traders and product managers. Successful candidates will possess extensive Java experienc ...

Senior OMS Java Engineer Low Latency Trading (Hybrid)

EC1 Partners is seeking an experienced Java Developer (OMS Specialist) for a permanent position to join its London-based financial technology team. The candidate will design and develop a high-performance Order Management System in a hybrid working environment. Key qualifications include hands-on experience with ...

Senior Backend Engineer, Core Java | Remote UK – Impact

Yelp, Inc is looking for a remote backend engineer to join their cooperative team. The role involves building and maintaining tools and libraries for Java services, working closely with application developers to enhance the Java developer experience. Candidates should be proficient in Java, Scala, and/or Kotlin, ...

Senior Backend Engineer Java 21 Spring Boot Microservices

A leading fintech company is seeking a Senior Back-end Engineer in London to build the core infrastructure for their platform. You will design scalable microservices using Java 21 and Spring Boot, ensuring high performance and reliability. The ideal candidate has over 7 years of back-end development experience, ...

Senior Java Runtime Engineer Secure, High Performance VM

A leading technology company in Greater London is seeking a skilled individual to join their Java runtime team, focusing on enhancing both security and stability. In this role, you will engage in system programming, utilizing your expertise in languages and compilers. The ideal candidate has extensive experience ...

Senior Java Full Stack Engineer React, AWS & DevSecOps

Tata Consultancy Services is looking for a Senior Full Stack Developer to join their team in London. In this hybrid role, you will be responsible for delivering high-quality, secure full-stack services using Java and React. Your work will involve designing and building APIs, collaborating with engineering teams, ...

Senior Full Stack Engineer: TS Frontend & Java Microservices

A leading financial services group is seeking a Senior Software Engineer with strong full‑stack development experience, focusing on TypeScript and Java/Spring Boot. The role involves delivering scalable, secure solutions alongside engineers and product teams. Ideal candidates will have expertise in RESTful micro ...

DV Cleared Java Full Stack Engineer Cloud & Microservices

A global technology and transformation partner in London is seeking a DV Cleared Java Full Stack Engineer. In this mid-senior level role, you will drive business outcomes by creating digital solutions and working with diverse technology stacks. You must have substantial experience with Java (Spring Boot) and be ...

Senior Java Payments Engineer — Build Secure, Scalable Systems

A global financial services firm in London is seeking a Software Engineer III to join an agile team in delivering secure and innovative technology solutions. The role involves executing software solutions, developing high-quality production code, and contributing to projects across multiple technical areas. Idea ...

Java Full Stack Engineer Senior Consultant Digital Excellence

ROLE DETAILSSBU - InventCU - Business Technology Global Grade - CAt Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating ...

Software Engineering Manager Lead Scalable Web Apps

Apple in Greater London seeks an exceptional Software Engineering Manager to lead a talented team responsible for delivering high-quality customer-facing features on the Online Store. You will oversee software engineers, manage project execution, and drive innovation within the team.The ideal candidate ...

Senior Backend Engineer – Time & Money (Hybrid, Equity)

Personio seeks a Senior Software Engineer in London to build backend systems for time tracking and payroll functionalities. The role includes designing services to ensure accurate data integration into Payroll and Money systems. Ideal candidates have backend engineering experience, strong programming skills in J ...

Software Engineer Analytics & Data Pipelines

Apple is looking for a Software Engineer in London to join the Analytics and Data Engineering team. You will develop large-scale systems to power Apple’s services like the App Store and Apple Music. The ideal candidate should have experience with distributed systems and proficiency in Java or Scala, or equivalen ...

Cloud Native Full Stack Engineer: AWS & Kubernetes

ESPIRE INFOLABS (SINGAPORE) PTE. LTD. is seeking a skilled Full Stack Engineer to join their Cloud Center of Excellence team in the United Kingdom. The role involves building and maintaining applications on AWS with strong proficiency in Java, Spring Boot, and modern DevOps practices. Candidates should have exte ...

Senior Cloud Native Full Stack Engineer (Azure, React/Java)

Charles River Development, based in Greater London, is seeking a full-stack, cloud-native engineer to enhance their Enhanced OTC Module. You will work with Java, C#, SQL, and modern JavaScript frameworks while mentoring junior engineers. A degree in a related field is required, along with 8-10 years of software ...

Software Engineer — Embedded Fintech Platform + RSU

A leading fintech company in Greater London is seeking a Software Engineer to build multi-tenant infrastructures and solutions for enterprise clients like Rippling and SHEIN. The role requires over 3 years of experience in Java/Spring Boot and involves collaboration across Product, Design, Compliance, and Sales ...

Backend Java SDE II — Scale APIs, Hybrid Work

Tesco Technology in Greater London is seeking a Software Development Engineer II to enhance our backend API systems. You'll design and develop high-performance APIs to improve customer experience. With a knowledge of Java, you'll work closely with senior engineers, participate in team planning, and learn modern ...

Software Engineer, AI Driven Finance & Asset Analytics

Clearwater Analytics is seeking an experienced Software Engineer in Greater London to develop solutions for fund analytics within an AI-based team. The role emphasizes programming in Java and collaboration with investment professionals. Candidates should have strong problem-solving skills and experience in Agile ...

Senior Software Engineer Big Data Metrics (Scala/Spark)

A leading information and analytics firm seeks a Senior Software Engineer in Greater London to design scalable systems for metric computation. This position involves building pipelines with Scala and Spark, developing Java APIs, and mentoring junior engineers. Candidates should demonstrate strong expertise in bi ...

Senior Software Engineer Public APIs & Expense Platform

A global technology firm in Greater London is seeking a Senior Software Engineer to enhance their Business Expense Management team. You'll design and maintain scalable services while producing public-facing APIs. Ideal candidates will be proficient in Java, familiar with microservices, and possess strong communi ...

Senior Algo Trading Engineer Low Latency & SOR (AVP)

Citibank (Switzerland) AG is seeking a Senior Software Engineer for Algo Trading in London. The role involves designing and delivering algorithmic trading and Smart Order Routing (SOR) platforms, requiring strong technical expertise in Low Latency Java, C++, or Rust. Collaboration with traders and quantitative r ...

Senior Java SRE: Scale Low Latency Trading Systems

IG India is seeking a Senior Java Engineer specializing in Site Reliability Engineering (SRE) to enhance system reliability across its trading platform. The successful candidate will blend software development and reliability engineering, collaborating with cross-functional teams and leading initiatives such as ...

IAM Full Stack Engineer: Secure Platform & Access Leader

A leading financial technology firm is seeking a Software Engineer to join their IAM team. In this role, you will design and implement secure, scalable solutions for user access management, employing cutting-edge technology in a supportive environment. Ideal candidates will have experience in full stack engineer ...

Senior JVM Live Debugger Engineer | AI Driven Production

A leading developer tools company is seeking a Senior Software Engineer in Greater London. This role focuses on enterprise JVM experience and exciting engineering challenges involving AI integration. Responsibilities include designing product features and developing tooling for AI-first workflows. The ideal cand ...

Back End Engineer, Fraud in London Blockchain.com

Fault Tolerant, Production Ready Distributed Backend Systems You have experience in any JVM based languages (such as Java, Kotlin, Scala) and are confident in your ability to build, debug, and ship microservices. You are customer-focused and continuously suggest how the... <h ...

Senior Solution Engineer Demos, PoCs & Strategy

A technology solutions provider in Greater London seeks a passionate Solution Engineer to support regional targets by presenting innovative solutions to potential customers. The ideal candidate has a degree in Computer Sciences or Business Informatics and at least two years of experience in software technologies ...

Senior Backend Engineer Enterprise Payments & Banks

A global technology company is seeking a Senior Software Engineer I for the Wise for Banks team in Greater London. The role involves designing and implementing scalable services using Java and Spring Boot within a microservices architecture. Candidates should have strong experience in Kafka, PostgreSQL, and even ...

Distributed Backend Engineer (JVM Microservices)

Fault Tolerant, Production Ready Distributed Backend Systems You have experience in any JVM based languages (such as Java, Kotlin, Scala) and are confident in your ability to build, debug, and ship microservices. You are customer-focused and continuously suggest how the... <h ...

Senior Software Engineer (Associate) Full Stack React/AWS

Java Script Works is seeking a Senior Software Engineer (Associate) to work in London, United Kingdom. This full-time position offers competitive compensation and opportunities to work with modern technologies such as C#, .NET core, and React.js. Ideal candidates will possess strong technical abilities ...

Android Platform Engineer: Quality, Performance & Tooling

Deepstreamtech is seeking an experienced Software Engineer specializing in Android development in Greater London. The role involves developing tooling to measure quality issues, working across the stack, and optimizing performance through Android profiling. Ideal candidates should have expertise in Java/Kotlin a ...

Staff AI Systems Engineer — Remote GTM Context & Insights

HubSpot is hiring a Staff Software Engineer to enhance AI products within the Engage Product Group. This role requires solid experience in building AI solutions, and strong programming fundamentals, primarily in Java. Key responsibilities include writing production code, collaborating with product management and ...

Senior Backend Engineer Enterprise Payments & Banks

A global technology company is seeking a Senior Software Engineer I for the Wise for Banks team in Greater London. The role involves designing and implementing scalable services using Java and Spring Boot within a microservices architecture. Candidates should have strong experience in Kafka, PostgreSQL, and even ...

Senior Software Engineer Big Data Metrics (Scala/Spark)

A leading information and analytics firm seeks a Senior Software Engineer in Greater London to design scalable systems for metric computation. This position involves building pipelines with Scala and Spark, developing Java APIs, and mentoring junior engineers. Candidates should demonstrate strong expertise in bi ...

Senior Backend Engineer – Time & Money (Hybrid, Equity)

Personio seeks a Senior Software Engineer in London to build backend systems for time tracking and payroll functionalities. The role includes designing services to ensure accurate data integration into Payroll and Money systems. Ideal candidates have backend engineering experience, strong programming skills in J ...

Senior Software Engineer Public APIs & Expense Platform

A global technology firm in Greater London is seeking a Senior Software Engineer to enhance their Business Expense Management team. You'll design and maintain scalable services while producing public-facing APIs. Ideal candidates will be proficient in Java, familiar with microservices, and possess strong communi ...

Senior JVM Live Debugger Engineer | AI Driven Production

A leading developer tools company is seeking a Senior Software Engineer in Greater London. This role focuses on enterprise JVM experience and exciting engineering challenges involving AI integration. Responsibilities include designing product features and developing tooling for AI-first workflows. The ideal cand ...

IAM Full Stack Engineer: Secure Platform & Access Leader

A leading financial technology firm is seeking a Software Engineer to join their IAM team. In this role, you will design and implement secure, scalable solutions for user access management, employing cutting-edge technology in a supportive environment. Ideal candidates will have experience in full stack engineer ...

Remote Python Engineer for AI Model Performance (Contract)

Mercor is looking for a Software Engineer to develop and maintain production-grade Python systems in a remote capacity. The role requires expertise in modular, testable codebases and optimization techniques. The ideal candidate will have a proven track record in top US tech firms, demonstrating deep knowledge of ...

Engineering Manager | Defence & Hands On

Engineering Manager – Mission Critical Systems | Rust | Defence Tech We’re partnered with a rapidly scaling defence technology start-up building mission-critical systems at the cutting edge of modern software engineering. Having raised significant funding and already achieving strong product-market fit ...

Engineering Manager | Defence & Hands On

Engineering Manager – Mission Critical Systems | Rust | Defence Tech We’re partnered with a rapidly scaling defence technology start-up building mission-critical systems at the cutting edge of modern software engineering. Having raised significant funding and already achieving strong product-market fit ...

Engineering Manager | Defence & Hands On

Engineering Manager – Mission Critical Systems | Rust | Defence Tech We’re partnered with a rapidly scaling defence technology start-up building mission-critical systems at the cutting edge of modern software engineering. Having raised significant funding and already achieving strong product-market fit ...

Senior Quantitative Risk Manager – Margin & Risk IT Lead

LSEG is looking for a Manager in the Business Quant Risk Team to lead risk governance and implement quantitative solutions for risk models. Ideal candidates should have over 5 years of experience in Quant Risk Management within the Finance industry and proficiency in programming languages such as Java, R, and Py ...

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    Lead Software Engineer Python Java Jobs in London Job Search Guide, Trends and Insights