1,851 to 1,875 of 2,322 Java Jobs in London

Onyx-Conseil in London is seeking a Software Engineer with C# or Java and Azure to design, develop, and integrate cloud-based solutions. A bachelor’s degree in computer science or a related field is required, with 4–6 years of progressively complex experience across design and development. The role ...

shaping the future of digital UK Government solutions, building secure, high-impact platforms that improve services for millions across the UK. As a Java Developer , you’ll play a pivotal role in designing and developing scalable, resilient back-end systems using the latest Java and microservices technologies. You’ll collaborate ...

working with a global electronic market maker hiring a low-latency Java developer in London, joining the team that builds and owns their client-facing trading infrastructure. What the role covers: Designing and maintaining proprietary low-latency trading systems, front-to-back Order management, exchange connectivity, smart order routing, internalisation … stack A mix of projects - Front End-facing through to Back End infrastructure, in different languages What they're looking for: Strong experience in Java, Go or C++ building distributed, scalable systems Roughly 2 - 7 years shipping and maintaining highly optimised code Python, high-concurrency systems, low-latency or high ...

JPMorgan Chase & Co. in the United Kingdom is seeking a back-end software engineer to build cloud-native microservices in Java/Kotlin, delivering robust banking features and scalable APIs for customers. You will own the code across the lifecycle, collaborate in an agile, distributed team, and work with enterprise ...

including market data, order management, exchange connectivity, and execution infrastructure; Troubleshoot and resolve production issues across a globally distributed trading infrastructure; Develop and maintain Java and C++ trading systems. Требования: 2+ Years of experience in a front-office trading environment building low-latency systems using Core Java; Bachelor ...

platform. You will engineer resilient integrations and workflows, automate test tooling, and drive real-time performance insights across trading operations. You will work with Java (JVM), cloud environments, Kafka, and containerized deployments to streamline governance and reliability. Strong collaboration with IT and business stakeholders is essential. #J-18808-Ljbffr ...

Remotestar, a leading fintech company in London, is seeking an experienced backend developer with expertise in Java and Spring/Spring Boot. The ideal candidate will have over 8 years of backend development experience, strong knowledge of MongoDB, RESTful services, and effective team leadership capabilities. This hybrid position requires candidates ...

contract based in Suffolk. You will build, maintain, and optimize SIP-based voice services, bridging traditional telephony and cloud-based AI. Focus areas include Java development, SIP/VoIP, and integration of Speech AI across multi-cloud environments. Responsibilities include developing, testing, and scaling SIP services, managing FreeSWITCH/Asterisk ...

digital services supporting access to justice across the UK. You’ll own reusable tech built to onboard faster, integrate consistently and operate reliably, using Java and Angular to tackle complex challenges. This hybrid role works with a UK Government Department client, and requires UK Security Clearance or eligibility. CGI offers ...

Citi is seeking an experienced Software Engineer for Prime Brokerage Technology in London. You will own development of core components (Java/Kotlin), contribute to CI/CD and testing practices, and collaborate with analysts to refine requirements in an agile setting. The role offers a hybrid work arrangement ...

Engineer to join our UK-based development team in London, Cardiff, or the Midlands. You will work across the stack, delivering mobile features with Java on the backend and Flutter on the frontend, while leveraging AWS and Sitecore where appropriate. You will collaborate with product owners, designers and testers ...

Greater London, is seeking an Automation Tester to own end-to-end quality in a cross-functional Agile team. You will design and maintain Java-driven test frameworks, leveraging Playwright, and drive automated testing across APIs and services. Responsibilities include integrating tests into CI/CD pipelines (GitLab/Jenkins ...

distributed team on fraud prevention, identity services, money transfers, card payments, lending and onboarding to build secure, scalable software. The role emphasizes strong Java coding, testing, and cloud skills with opportunities to influence production support and ongoing improvements across services. #J-18808-Ljbffr ...

looking for an experienced Software Engineer to develop innovative solutions in the real-time payment processing sector. The ideal candidate will have expertise in Java, experience with reactive programming using the Spring framework, and be familiar with Agile methodologies. Responsibilities include hands-on development, contributing to architectural decisions, and optimizing ...

Junior/Mid Software Engineer to build a real-time event-driven platform for securities lending, repo and derivatives trading. You will work on Java server-side/UI components and Python ETL pipelines, with direct collaboration with traders and operations teams. The role offers mentorship and exposure to modern ...

platforms to enhance our service delivery. The successful candidate will engage in meaningful projects that impact users significantly. You should be well-versed in Java 17+, Spring Boot, and Kafka, and possess experience in leading complex projects. Rightmove offers a competitive compensation package and a hybrid work environment with opportunities ...

frameworks; Deep understanding of market microstructure, pre-trade risk checks, limit frameworks, and regulatory requirements, and their impact on execution algorithm performance; Expert-level Java skills with extensive experience building low-latency, GC-aware, high-throughput distributed systems; Strong understanding of distributed, event-driven architectures and messaging technologies such ...

deliver innovative solutions Driving best practices across software engineering, system design and platform scalability What We’re Looking For Strong software engineering experience in Java and/or Python Proven track record designing and building distributed, scalable systems Excellent understanding of software architecture, system design and modern engineering principles Experience ...

increase testing efficiency Accurately estimate effort required for assigned tasks Requirements Proven experience in automation testing, especially for backend and APIs Strong knowledge of Java and experience with test frameworks such as TestNG or JUnit Familiarity with Git version control Understanding of CI/CD tools and pipelines Ability ...

each other Experienced within the Fintech industry YOU HAVE: Significant, professional server-side software development experience Solid experience programming using Core Java. Exposure to Java 25+ is a plus General familiarity with data structures such as sets, hashes, caches etc Experience developing Front Office financial systems, E-Trading … here you will have three stage interviews: 1- A chat with one of our great recruiters. 2- A zoom chat with one of our Java colleagues where they will ask you detailed questions about your experience 3- A Face to Face interview (either in our office or via Zoom). ...

native mindset by embedding AI, automation, and data-driven decision-making into engineering practices, delivery models, and team problem-solving. Proficient in Java full stack, .NET, AWS, EKS, Claude, Cursor based engineering and deployment practices. Act as an agent of technology change by leading modernisation, simplifying legacy approaches, and accelerating … develop people managers within the organisation, strengthening leadership capability at the next level downQualificationsStrong people leadership experience - coaching and developing global engineering teamsProficient in Java full stack, .NET, AWS, EKS, Devops, Claude, Cursor based engineering and deployment practices. Expertise in building strong relationships with teams and leaders globally and influencing ...

Computer Science, Computer Engineering, or related field or experience Experience building and designing distributed and scalable software in general purpose languages such as Java, Go, C++Driven, self-starting personality. Our employees are expected to demonstrate peer leadership and initiative early onExcellent written and verbal communication skillsDESIRED BUT NOT REQUIREDExperience ...

enthusiastic about influencing how teams prioritise reliability. Strong experience working with microservices in a Kubernetes, cloud-based architecture. Hands-on Software Engineering experience (Java or other backend languages) - you will be contributing to the Wise product and applying reliability best practices (development, resiliency patterns, observability). Hands-on experience with ...

Engineer – FintechTo 60,000Quant Capital is urgently looking for a Java Developer to join our high profile client. Our client is a small fintech firm creating by one of the worlds best known personalities in fintech. They are known for solving one of the common problems in the retail financial … making serious money doing something you are passionate about. My client is based in Central London, this role is remote for the considerable future. Java Engineer, Java Developer, React. JS Growth Javascript CSS HTML Frontend Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript ...

London | Electronic Trading | Java | Low Latency We're working with a technology-driven trading business looking for a hands-on Java Developer to build and enhance high-performance electronic trading systems. You’ll work closely with traders and quantitative developers, building systems where latency, performance and reliability directly impact trading … outcomes . What you’ll be doing Designing and developing low-latency, high-throughput Java trading systems Building pricing, hedging, risk and algorithmic execution components Working directly with traders and quantitative developers Developing market-data and order gateways Integrating quantitative models into production trading systems Working with FIX, multicast ...