76 to 100 of 444 Java Engineer Jobs in London

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across … Java and Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate … pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy More ❯

Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across … Java and Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing as a Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate … pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy More ❯

Java Engineer 📍 Location: London (Hybrid) 💷 Salary: Up to £160,000 + Bonus + Outstanding Benefits 🔍 The Role A top-tier FinTech innovator is seeking a skilled Java Engineer to help drive the evolution of their next-generation, low-latency trading platform. This is your opportunity to … technology, building performance-critical systems in a collaborative, agile environment. You'll work alongside exceptional engineers and industry veterans, tackling complex challenges with Core Java in a business where every millisecond matters. What You’ll Bring 🧩 Deep expertise in Core Java, with a focus on high-performance development More ❯

Java Engineer Location: London (Hybrid) Salary: Up to £160,000 + Bonus + Outstanding Benefits The Role A top-tier FinTech innovator is seeking a skilled Java Engineer to help drive the evolution of their next-generation, low-latency trading platform. This is your opportunity to … technology, building performance-critical systems in a collaborative, agile environment. You'll work alongside exceptional engineers and industry veterans, tackling complex challenges with Core Java in a business where every millisecond matters. What You’ll Bring Deep expertise in Core Java, with a focus on high-performance development More ❯

Java Engineer 📍 Location: London (Hybrid) 💷 Salary: Up to £160,000 + Bonus + Outstanding Benefits 🔍 The Role A top-tier FinTech innovator is seeking a skilled Java Engineer to help drive the evolution of their next-generation, low-latency trading platform. This is your opportunity to … technology, building performance-critical systems in a collaborative, agile environment. You'll work alongside exceptional engineers and industry veterans, tackling complex challenges with Core Java in a business where every millisecond matters. What You’ll Bring 🧩 Deep expertise in Core Java, with a focus on high-performance development More ❯

team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity Trading strategies. Key Responsibilities: Design, develop … and maintain Java 17 applications with a focus on multithreading and concurrency. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Help maintain code quality, organization, and automation. Participate in code … reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL Database More ❯

poster from Understanding Recruitment Our client is a highly trusted player in asset management and FX trading, looking to recruit a proficient Mid-Level Java Developer to join their apps team. This opportunity will allow you to join a company that is committed to economic growth in a sustainable … key role in the trading team. Work primarily within GCP, ensuring that the architecture is optimized for multi-cloud compatibility.️ Key Requirements: An experienced engineer with 3-5 years of experience Strong knowledge of Core Java. Previous experience working in TDD and CI/CD environment and pair-programming.️ … A generous annual bonus , historically reaching up to 30%. Hybrid working pattern, with two days remote a week. If you’re a Core Java Developer looking to take your career to the next level, apply today to be considered for this excellent opportunity! Seniority level Seniority level Mid More ❯

Social network you want to login/join with: Senior Software Engineer (Java) – Bonus, Equity and More, london col-narrow-left Client: TechHeads Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide … Job Description: Senior Software Engineer (Java) – Bonus, Equity and More TechHeads is partnering with a global leader in the cyber security space , currently growing their team, to bring you an exciting opportunity for an experienced Senior Software Engineer. This permanent, full-time role is based onsite in London … and existing backend features , while providing technical leadership through activities such as code reviews and maintaining best practices. Working with a modern stack including Java and Spring Boot , you’ll have the opportunity to develop your expertise with the latest tools and technologies . This is a great chance More ❯

Social network you want to login/join with: Software Engineer (Java), south west london col-narrow-left Client: Brookwood Recruitment Ltd Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 col … wide Job Description: Java Engineer (6-Month Contract) | Global Tech Company | London (Hybrid) Start Date: ASAP Duration: 6 months Location: London (Hybrid Working) Rate: £675 per day INSIDE IR35 A leading global tech company is looking for a talented and motivated Software Engineer to join its RegTech … through code reviews, mentoring, and hiring efforts What We’re Looking For: 3+ years of software engineering experience, with strong backend focus Proficiency in Java (required) and at least one other server-side language Solid hands-on experience with microservices and distributed systems Familiarity with data technologies like MySQL More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer … open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What … They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group university 💻 Tech Stack: Java | AWS | Multithreading | Kafka | ActiveMQ | MongoDB | DevOps Tooling More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer … open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What … They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group university 💻 Tech Stack: Java | AWS | Multithreading | Kafka | ActiveMQ | MongoDB | DevOps Tooling More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer … open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What … They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group university 💻 Tech Stack: Java | AWS | Multithreading | Kafka | ActiveMQ | MongoDB | DevOps Tooling More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer … open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What … They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group university 💻 Tech Stack: Java | AWS | Multithreading | Kafka | ActiveMQ | MongoDB | DevOps Tooling More ❯

Software Engineer II - Java - Payments - Chase UK Join to apply for the Software Engineer II - Java - Payments - Chase UK role at JPMorganChase Software Engineer II - Java - Payments - Chase UK 2 weeks ago Be among the first 25 applicants Join to apply for the Software … Engineer II - Java - Payments - Chase UK role at JPMorganChase Job Description We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionise mobile banking with seamless journeys that our customers love. … channelling our start-up mentality every step of the way – meaning you'll have the opportunity to make a real impact. As a Software Engineer at JPMorgan Chase within the International Consumer Bank, you will be a part of a flat-structure organization. Your responsibilities are to deliver end More ❯

Social network you want to login/join with: Senior Java Software Engineer Job in Europe, London Client: Salt Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: b20ee257688e Job Views: 5 Posted: 02.06.2025 Expiry Date: 17.07.2025 Job Description: We’ve partnered with … an exciting business that works in the fields of aviation, civil infrastructure, transportation, and operations. They are looking for a product-focused Senior Java Engineer to join their dynamic team and work on business-critical projects, creating and bringing simulations to life. You will join a small team … you will be working closely with those who use it, providing fixes and pre-empting requirements by actively improving and developing solutions. Tech stack: Java | Swing | Bash Scripting | Linux Location: Brussels – 2 days a week in the office Salary: €80k + Bonus Experience working with real-time data is More ❯

recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software Engineering at Client-Server Backend Software Engineer/Developer (Spring Boot SQL API) London to £80k Well established trading brokerage is seeking a Backend Software Engineer with strong Java experience, as they expand into UK markets. As a Backend Software Engineer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and … will quickly see the impact of your work, developing high quality, scalable and secure trading applications with a focus on backend Java development and API implementation within an AWS environment. Location/WFH: You'll join a team of finance entrepreneurs and technologists in City based offices with smart More ❯

Social network you want to login/join with: Java Engineer - Up to £140,000 + Bonus + Package, London Client: Hunter Bond Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 Job Description: Location: London (Hybrid … Salary: Up to £140,000 + Bonus + Outstanding Benefits The Role A top-tier FinTech innovator is seeking a skilled Java Engineer to help drive the evolution of their next-generation, low-latency trading platform. This is your opportunity to work at the forefront of real-time … technology, building performance-critical systems in a collaborative, agile environment. You'll work alongside exceptional engineers and industry veterans, tackling complex challenges with Core Java in a business where every millisecond matters. What You’ll Bring Deep expertise in Core Java, with a focus on high-performance development More ❯

Social network you want to login/join with: Lead Software Engineer (Java/Angular), london col-narrow-left Client: MarkJames Search Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 23.05.2025 Expiry Date: 07.07.2025 col-wide Job … Description: Job Title: Lead Software Engineer (Java/Angular) Location: Stratford, London or Leeds. Employment Type: Contract (6 months) Work Schedule: Hybrid (2 days per week in the office) We are seeking a highly skilled and proactive Lead Software Engineer to join our dynamic team. This is … products meet quality standards and align with best practices. Key Responsibilities: Hands-On Development: Actively develop and implement new features and requirements within our Java and Angular codebase, collaborating closely with Product Owners and Architects. Technical Leadership: Lead and guide the development team, providing direction and oversight of technical More ❯

your recruiter to learn more. Base pay range Direct message the job poster from Switch Tech Talent Principal Consultant at Switch Tech Talent Role: Java Software Engineer/Java Developer Location: Central London (EC2M) - hybrid 2 days a week onsite A leading global B2B SaaS technology company … is seeking Java Developers at all levels (junior, mid-senior) to join its London-based team. The company operates a large-scale SaaS platform that supports hundreds of millions of daily transactions, supplying content to major travel agencies, meta search engines, and ecommerce platforms. You will join a dynamic … volume XML integrations, time-sensitive bug fixes, and contributing to innovative new features and products. Key Responsibilities: Develop and maintain robust backend systems in Java (Java 17). Work on complex system integrations with third-party suppliers and distributors. Handle XML feeds, web scraping, and high-frequency search More ❯

work permit required: Yes col-narrow-right Job Reference: 9e76a74e99e8 Job Views: 5 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Software Engineer - Java OR C++ Gloucestershire/London - 4 days on-site A global leader in aerospace, defense, and advanced technologies is looking for a … permanent Software Engineer (Java/C++). This company is at the forefront of developing cutting-edge solutions for national security and space exploration. It designs and delivers innovative systems across air, land, sea, and space domains, supporting both government and commercial clients worldwide You will play a … British national with active SC or DV clearance. Candidates eligible and willing to undergo DV vetting will also be considered. Key requirements : Proficient in Java, and/or C++ Experience of developing on Linux. Knowledge of mocking up and unit testing frameworks such as JUnit 5.x (Jupiter) Experienced with More ❯

Java Software Engineer London (Hybrid – 1–2 days/week onsite) Join a FinTech Powering the Future of Payments Are you a Java Software Engineer who thrives in a fast-paced, agile environment? Passionate about high-throughput, real-time systems? This is your opportunity to help … transactions across the globe. What You’ll Be Doing You’ll join a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and … Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka More ❯

SENIOR BACKEND ENGINEER - JAVA Joining Capco means joining an organisation that is committed to an inclusive working environment where you're encouraged to Be Yourself At Work. We celebrate individuality and recognize that diversity and inclusion, in all forms, is critical to success. It's important to us … applications already adopted by millions of users. You will have the opportunity to learn and work with other Back End technologies (not restricted to Java) whenever you want to widen your expertise. We offer you the opportunity to train with the best courses and portals available online and get … certified becoming the best version of software engineer you can. The Role We are looking for engineers who want to play a key part in supporting the evolution of the Financial Services industry one project at a time. You will be expected to be a strong team player who More ❯

Job Title: AI Solutions Engineer (Java Focus) Location: Remote (UK/EU Preferred) with occasional face-to-face meetings Reporting to: Chief Technology Officer About Valsoft: Valsoft specialises in acquiring and growing vertical market software companies. Our mission is to provide a permanent home for software businesses, preserving … process and operates a decentralised model, fostering rapid growth through reinvestment in its portfolio. About the Role: We are looking for an AI Solutions Engineer specializing in the Java stack. In this role, you’ll work end-to-end—from collaborating with product managers, internal stakeholders, and cross … functional teams on defining requirements, to employing AI tools that streamline coding, testing, and deployment. You’ll develop secure, scalable solutions using Java-based frameworks and ensure continuous integration and delivery through modern DevOps practices. Key Responsibilities: Requirements Definition & Stakeholder Collaboration Engage with product managers, internal stakeholders, and cross More ❯

Principal Backend Engineer - Java at Capco Location: London (Hybrid) | Type: Permanent The Role Capco is growing our Engineering team – and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for delivering innovative solutions in financial services. If you enjoy solving complex … problems, working with cloud-native technologies, and collaborating in agile teams, we’d love to hear from you. As a Principal Backend Engineer at Capco, you’ll contribute to high-impact, client-facing projects that shape the future of financial services. You’ll work alongside talented engineers, have access … will also get the chance to work across different domains within FS & Energy. What You’ll Do - Build and deliver scalable backend services using Java (11, 17+) - Design and implement APIs and microservices for enterprise systems - Work across cloud platforms, particularly AWS, using best practice deployment techniques - Contribute to More ❯

This range is provided by Salt. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Java & AI Recruitment Specialist - Perm | UK & Europe | Connecting Top Tech Talent with Leading Companies This is an office-based role in London, Monday to Friday … Are you an experienced Java Developer looking for a truly impactful role? My client, a leading FCA-regulated trading brokerage, is building a brand-new, best-in-class trading and investment platform, and they need your expertise! This is a unique opportunity to join a growing team of technologists … and seamlessly integrate third-party services. Actively contribute to code reviews and troubleshoot production issues. What we're looking for: Minimum 8 years of Java development experience. Strong expertise in Enterprise Java, Spring/Spring Boot, Web, Security, ORM, Junit/Mockito, Maven/Gradle. Command of SQL More ❯