19 of 19 Java Engineer Jobs in East London

Senior Software Engineer (Java) – Greenfield Cyber Security SaaS Solutions Permanent ¦¦ Onsite ¦¦ London £85,000 - £100,000 DOE TechHeads is proud to partner with a global cybersecurity leader on a high-impact opportunity for a Senior Software Engineer. This permanent role based onsite in central London (5 days a week), offers the chance to work shoulder-to-shoulder with … a world-class team on complex, secure SaaS systems powering global enterprises. As a Senior Backend Engineer, you’ll play a key role in designing and building greenfield backend services using Java and Spring Boot , with a strong emphasis on DevOps, automation, and performance at scale. You'll help shape technical direction , lead by example in code quality … elevate your career, build secure and scalable systems, and play a key role in a global product roadmap , we want to hear from you. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ. Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes, CI/CD pipelines More ❯

of robust systems that generate and manage automated documentation workflows for banks. While the broader tech stack includes Node.js, JavaScript, and various database technologies, this role focuses primarily on Java and backend architecture, especially for candidates without deep JavaScript experience. Key Responsibilities Develop, maintain, and scale backend services in Java Support and eventually contribute to Node.js components (with … and contribute to a high-quality engineering culture Engage with banking-focused client requirements in a structured, agile environment Key Skills and Experience 4–7 years' professional experience in Java development Solid understanding of Java frameworks (Spring Boot, Hibernate) Practical knowledge of database systems (e.g., PostgreSQL, MySQL, MongoDB) Strong grasp of software engineering fundamentals and clean coding practices More ❯

Our client is seeking an experienced Java developer to join their team as they open a new office in London. This is a rare chance to work closely with an existing core engineering team while creating a new engineering culture from the ground up. This position is ideal for you if you love working in a hands-on, agile … Solve complex technical challenges, ensuring scalable, reliable products through brainstorming and problem-solving. Foster collaboration by sharing expertise, mentoring, and promoting continuous learning and improvement. Requirements 5+ years of Java development with a strong track record of delivering high-quality software. Skilled in OOP, Java, Spring Boot, Hibernate, and build tools like Maven or Gradle. Experience building secure More ❯

Lead Backend Software Engineer/Developer (Java Kafka SpringBoot) London/WFH to £120k Are you a skilled Backend Software Engineer with strong Java and real-time messaging experience combined with SC Clearance? You could be progressing your career in a senior, hands-on Lead Backend Software Engineer position at a scale-up technology company … with a successful workforce management solution used within the government, defence and other public sector clients. As a Lead Backend Software Engineer you will take a lead role in designing and developing secure, event driven, distributed backend systems for real-time operations, resilience and extensibility. You'll collaborate with engineers across the full stack to integrate backend services with … can work from home most of the time, meeting up with colleagues in the London office once a week. About you: You have significant experience as a backend focussed Java software engineering with leadership responsibilities You have strong Spring Boot, Kafka and event driven microservices experience with high throughput You have leadership, mentoring and coaching skills You have a More ❯

This is a fantastic opportunity to work as a Sofware Engineer, on a long term contract, working for a major finance company, inside IR35 and fully remote. The key skills required for this Software Engineer role are below. Low latency FX Matching Java C++ (desirable) trading (desirable) SQL Gradle If you do have the relevant experience for … this remote Software Engineer position, please do apply. More ❯

Senior Java Engineer (Java 17, Kafka, Spring Boot) | Market-Leading Systematic Trading Firm | Up to £130,000 | 12 Month FTC | Hybrid, London Evoke is partnered with one of the UK’s top systematic trading firms on an exciting opportunity for a Senior Java Engineer to join their high-calibre technology team on a 12-month … is a hands-on engineering role with real autonomy, working in a fast-paced environment where clean, scalable code is valued. The ideal candidate will have strong experience with Java (Java 17), Kafka, and building modern microservices using Spring Boot. Financial services experience is not required but would certainly be a plus. This role is offering up to More ❯

Software Engineer - Java - Contract - £400 per day outside IR35 - Java/Microservices, Basic Test framework knowledge, Unit testing skills, Java design skills, Deployment in Pipeline knowledge ( Git lab, Jenkins, Aws tools sets) About the Company My client is seeking a Java Software Engineer on a contract basis in order to deliver Premium AIS in … testing, building in quality as an integral part of all activities Evolve more predictive and intelligent testing approaches based on automation and innovative testing products and solutions Required Skills Java Microservices Basic Test framework knowledge Unit testing skills Java design skills Deployment in Pipeline knowledge (Git lab, Jenkins, AWS tools sets) Pay range and compensation package £400 per More ❯

Insight Global are seeking a Mid-Level Java Developer to join one of our leading financial services clients. This is a contract-to-hire opportunity based in St Paul’s, London, operating on a hybrid work schedule. In this role, you’ll be working on the development and enhancement of a mission-critical FX trading platform used by major … focused on improving swap trading performance, write clean and testable code, and participate in architectural discussions to drive system improvements. The applicant must have the following: • Advanced proficiency in Java • Strong experience in low-latency, high-throughput systems, particularly within FX trading platforms (e.g. LSE, 360T) • Deep understanding of efficient garbage collection, memory management, and object modeling • Unit testing More ❯

Location: London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure software is built and delivered across the enterprise. You … the world. All this from London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career momentum. What You’ll Do … Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency Work closely with platform engineers, security experts, and software developers across multiple regions Help standardize and improve development workflows used by thousands of engineers globally Support the integration of modern More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers to join them. … k (depending on experience) 🌳Fully remote 🌳Benefits package 🌳Key requirements:🌳 · Over 4 years of experience working with Java, React, Javascript · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots already pre-booked so suitable More ❯

Java Software Engineer - Brand new and exclusive to Miller Maxwell - Front-office engineering team - Low-Latency trading. Miller Maxwell is assisting a electronic trading company seeking to hire a Java Software Engineer expanding their team in 2025. The Java Software Engineer will be a key contributor to the development and enhancement of proprietary trading … systems and surrounding ecosystem's. The Java Software Engineer will be required to have worked on the development of electronic trading systems. The Java Software Engineer will: Enhance and develop core features trading platform software. Build trading engines, micro-services, low-latency tools. Work to develop solutions around new products requested by trading and front-office … teams. Work within their TDD and BDD environment. Research and look to continuously improve the systems and introduce new technology. The Java Software Engineer qualifications: A degree in a STEM-related subject. At least eight years of commercial Java experience. Experience working on the development of electronic trading software is required for this position. Java concurrency More ❯

Java Software Engineer/Developer WFH to £100k Are you a skilled Java Software Engineer with low latency trading systems experience? You could be progressing your career at a global market data and trading platform provider for cryptocurrency markets. As a Java Software Engineer you will develop, test and maintain high-quality, low-latency … Java applications handling millions of requests per day, collaborating with cross-functional teams to design systems that meet business and regulatory requirements. You'll seek to continuously improve system performance and scalability, implement automated testing, CI/CD pipelines and document system workflows, architecture and design decisions. Location/WFH: You can work from home from most of the … time but must be commutable to the London office. About you: You have strong Java development experience including concurrency, garbage collection, low level performance optimisation, data structures and memory efficient design patterns You have experience with low latency systems, particularly OMS (Order Management Systems), EMS (Execution Management Systems) You have strong design skills and can explain full system workflows More ❯

employees in the UK. Europe/Britain citizenship required. Onsite expectation: 5 days/week Full-time role Skills: SDE II equivalent, 5-10 years of experience. Full stack Java/React with good front end experience - and React will be important to focus on AWS related skillset, Lambda, Dynamo More ❯

Mid Core Java Developer – London - 70k - Hybrid (London) 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 way, striving to become the … business operations by playing a 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.️ Have good knowledge of Data … base salary of £70,000. 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 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 £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with … and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both Java and Python in production 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 £550-650pd | Outside IR35 : Designing and building robust backend services across Java, Python, and Rust-based systems Collaborating with … and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core Skills for the Senior Backend Engineer Contractor (Java/Ruby focused) | Fully Remote/EU-Based | Rate £550-650pd | Outside IR35 : Senior-level backend experience with both Java and Python in production More ❯

HFT Junior Java Software Engineer Do you thrive in fast-paced environments and enjoy tackling complex technical challenges? Join a growing team of experts in algorithmic trading! This company is a small team of expert traders and software engineers building the future of algorithmic trading. They seek bright, kind, and passionate people who share their interest in pushing … strategies. Improve and expand the company's newly built applications. This role requires critical thinking about user and market interactions. What you bring: 3-5 years of experience with Java is required. Experience with aeron clusters. Experience with databases (e.g. SQL Server, Postgres) is a plus. The company seeks experience with cloud server providers (e.g. AWS, GCP, Azure). … in a fast paced environment. Someone who is comfortable working in a smaller sized/start-up style company. If you are a highly motivated and results-oriented software engineer, this company wants to hear from you! This role is ideally suited for someone who understands a start-up environment, you will wear many hats and tackle many challenges. More ❯

QA Engineer (Hybrid, 2 days working from the London office) We are looking for a highly skilled and experienced QA Engineer with a strong focus on both automation and manual testing to join our in-house development team. We build cutting-edge and innovative web applications for the gambling industry; we have a fully Responsive Web product developed … with Angular JS. This role offers an excellent opportunity for an experienced QA Engineer eager to drive automation testing for our DotCMS-based project while supporting manual testing efforts. We’re looking for a passionate and proactive individual who can ensure our online betting/casino web application and its CMS meets high standards of quality and functionality. This … automation and manual testing, ensuring both efficiency through automation and comprehensive coverage through manual testing. Experience/Technical Skills: At least 5+ years of experience with UI automation using Java + Selenium and as Manual QA Experience with Cucumber or a similar BDD framework Experience with CI/CD, preferably with Jenkins Strong analytical, diagnostic, and problem-solving skills More ❯

Senior Java/Kotlin Engineers Our client is looking for multiple Senior Java/Kotlin Engineers to work on a new project 3 days a week in London Candidates must be UK based, they will not provide sponsorship. Tech Stack - Java, Kotlin, TDD, Docker/Kubernetes. Salary - £120k - 140k + Pension More ❯