1,901 to 1,925 of 2,321 Java Jobs in London

experienced Java developer looking to work on meaningful projects that solve complex, real-world problems? Were looking for a Senior Full Stack Software Engineer to join a friendly and collaborative Agile team delivering bespoke software solutions for Central Government customers. Youll work across the full software development lifecycle, from shaping ...

pipelines, to frameworks, tools and applications that make that data available to other teams and systems. Your primary toolset in your work will be Java microservices, Spark/Scala data processing (also some Flink), Kubernetes and AWS native tooling.**What You'll Do:*** Write highly fault-tolerant Java code within … product(s) or features with (one of) Apache Spark, Flink or Iceberg, or with comparable tools in GCP* 5+ years of experience programming with Java, Scala or Kotlin.* Proven experience owning robust feature/product design end to end, yourself, especially with vaguely defined problem statements or only 'loose' specs ...

Tech Stack: Selenium, Core Java, JDBC, Kafka, HDFS, Docker, SQL, Multithreading Challenge: Testing a Greenfield Big Data Analysis Platform Development in FS Firm: Well-known Financial Data fintech50 business, City of London, 10 man flat Dev Team Pay: 70k, Options, training budget, Pension, Life/Health, Some Work from Home … Engineers Must Have: NO FINANCE EXPERIENCE NEEDED 2 years commercial experience Experience of creating test frameworks from scratch Experience using Selenium. Ideally with the Java interface. Ability to translate requirements into a high quality test suite and implement this test suite using Serenity Screenplay or similar Good communication skillsThe first ...

framework and libraries that enable our product engineering teams to build and run financial services at scale. This hands-on role combines deep technicalexpertisein Java and the Spring ecosystem, with strong problem-solving abilities. You will work closely with SDLC and Infrastructure teams and play a pivotal role in driving … standardization and promoting best practices across Investments' technology landscape. Job responsibilities Design, develop, and maintain backend frameworks and libraries using Java and Spring Boot. Build components that provide out of the box implementations of functional and non-functional requirements. Collaborate closely with product engineering teams to understand their needs ...

framework and libraries that enable our product engineering teams to build and run financial services at scale. This hands-on role combines deep technicalexpertisein Java and the Spring ecosystem, with strong problem-solving abilities. You will work closely with SDLC and Infrastructure teams and play a pivotal role in driving … standardization and promoting best practices across Investments' technology landscape. Job responsibilities Design, develop, and maintain backend frameworks and libraries using Java and Spring Boot. Build components that provide out of the box implementations of functional and non-functional requirements. Collaborate closely with product engineering teams to understand their needs ...

Application Support Specialist | Java & AWS | Application Support | Leadership £80,000 + Bonus + Excellent Benefits Hybrid - 3 Days Per Week (London) I'm working with a fast-growing technology business that's looking for a Platform Operations Manager to lead its platform engineering function and drive the reliability, performance … solving and incident management skills. Excellent communication and stakeholder management abilities. Desirable Experience with any of the following would be advantageous: MongoDB Docker Terraform Java SQL Server APIs & Microservices Why Join? Lead a highly skilled Platform Engineering team. Play a key role in shaping the operational strategy of a growing ...

enterprise scale. Responsibilities for the Automation Test Engineer: Design, develop and maintain scalable UI and API automation frameworks Build automated test suites using Java, Selenium, REST Assured and Cucumber BDD Develop and execute functional, regression, integration and end to end automated tests Perform UI automation using Selenium WebDriver and Playwright … testing using K6 Support testing across AWS cloud environments and event driven architectures Essential Skills for the Automation Test Engineer: Strong commercial experience with Java based test automation Hands on experience with Selenium WebDriver, REST Assured, Playwright and Cucumber BDD Experience building and maintaining automation frameworks from scratch Strong knowledge ...

modernisation strategy of the fixed income tech stack Act as a technical leader, raising the bar across engineering standards and design decisions Tech Environment Java | React (Vite, NX) | Kafka/Solace/RabbitMQ | WebSockets/SSE | Rx | Kubernetes | SQL About You You are a strong technologist and technical leader with … passion for building high-performance systems in complex environments. You will bring: Deep expertise in modern Java, including concurrency, memory management, and reactive programming Strong experience building real-time, event-driven systems Advanced front-end experience with modern tooling (React, Vite, NX, Playwright) Strong understanding of distributed systems and microservices ...

equally technical Hands-on Palantir Foundry work: pipelines, ontology, Compute Modules, Code Repositories and Workbooks, application development Fluency in at least one of Python, Java, SQL, TypeScript or JavaScript, Bash, Go Three years or more of professional software or forward-deployed/solutions engineering experience, shipping systems into production Ability … Foundry Application Development Python Programming Docker Containerization Kubernetes Orchestration Security Clearance Hard Skills Data Pipeline Development Ontology Modeling Compute Modules Code Repositories SQL Programming Java Programming TypeScript Programming JavaScript Programming Bash Scripting Go Programming Soft Skills Stakeholder Communication Adaptability Certifications & Qualifications Right to Work in the EU UK-Based Eligibility ...

field Hands-on Palantir Foundry experience with pipelines, ontology, Compute Modules, Code Repositories, Workbooks, and application development Fluency in at least one of Python, Java, SQL, TypeScript, JavaScript, Bash, or Go Three or more years of professional software or forward-deployed/solutions engineering experience shipping systems into production Ability … Foundry Experience Python Programming Kubernetes Orchestration Security Clearance Solutions Engineering ATS Optimization Keywords Hard Skills Data Pipeline Development Ontology Modeling Application Development SQL Programming Java Programming TypeScript Programming JavaScript Programming Bash Scripting Go Programming Linux Fundamentals Soft Skills Stakeholder Communication Customer Feedback Integration Problem Solving Certifications & Qualifications Security Clearance Industry ...

Systems, Inc. is seeking a Senior/Intermediate Java Engineer to join its R&D team in a hybrid London/Newry/Belfast role. Focus on backend and middleware development with Java 17 and Spring, integrating with kdb+ in a distributed, high-availability system. The incumbent will implement authentication ...

leading global financial services firm based in Greater London is seeking a Senior Java Developer to deliver low-latency trading system components. The ideal candidate will have expertise in Java and experience with distributed systems, cloud environments like AWS, and trading flows. This role emphasizes collaboration across global teams ...

business area. You will lead a team of 15 engineers, shaping the architecture and development of core platform components using modern technologies including Python, Java, React, MongoDB, OpenShift, and Camunda. The role offers the opportunity to work on complex, business-critical systems with high visibility across trading, structuring, and operations. … ensuring scalability and resilienceDeliver high-quality, business-critical functionality aligned to front office and operational requirementsAct as a hands-on technical leader across Python, Java, React, MongoDB, OpenShift, and CamundaDefine and enforce engineering standards, best practices, and development processesPartner with global stakeholders to translate complex business needs into scalable solutionsCollaborate ...

This is a full stack role with a leaning towards frontend. Our frontend stack includes VueJS, TypeScript, and OpenAPI; our backend stack is primarily Java (Spring Boot) and Python, with some legacy Go. We're constantly evolving how we build and deliver software, and we're increasingly looking for engineers … that solve real user problems. Extend the Measure experience end-to-end: Create robust, scalable systems using VueJS and TypeScript on the frontend, and Java (Spring Boot) or Python services on the backend, that handle streaming responses, dynamic visualisations, and complex state management. Integrate seamlessly: Use OpenAPI contracts to build ...

great tools and development processes Push Palantir to the cutting edge of software supply chain security Technologies We Use A variety of languages, including Java, Go, and TypeScript Open-source databases like Cassandra, Lucene, Elasticsearch Open-source libraries/frameworks like GraphQL, Undertow, Jackson, and Log4j Industry-standard build tooling … engineering experience, preferably in fields such as Computer Science, Mathematics, Software Engineering, Physics Strong coding skills with demonstrated proficiency in programming languages, such as Java, C++, Python, JavaScript/TypeScript, or similar languages Great problem solving skills with ability to dive into and navigate existing complex systems Familiarity with data ...

real impact.**Job Overview**An **Digital Assets Platform Web3 Engineer** must be a highly motivated and proactive hands-on software engineer (**Back End, Java Focus**), have a proven ability and experience working with web applications in production. The successful candidate will be part of the core team continuing to build … with blockchain networks and digital asset infrastructure* **Implement blockchain integrations** — including node connectivity, transaction submission, on-chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries* **Write, test, and deploy smart contracts** in Solidity or equivalent languages, following established security and quality standards* **Build and maintain APIs ...

real impact. Job Overview An Digital Assets Platform Web3 Engineer must be a highly motivated and proactive hands‐on software engineer ( Back End, Java Focus ), have a proven ability and experience working with web applications in production. The successful candidate will be part of the core team continuing to build … with blockchain networks and digital asset infrastructure Implement blockchain integrations — including node connectivity, transaction submission, on‐chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries Write, test, and deploy smart contracts in Solidity or equivalent languages, following established security and quality standards Build and maintain APIs ...

market connectivity, price distribution or RFQ engines. Must understand and have experience building out D2D, D2C and bilateral eTrading connectivity. Highly proficient in Java/Spring with expertise in developing FIX trading solutions. Experience working with trading desks, strategists & quants for L3 support on production trading systems as well … growing eTrading engineering talent In-depth knowledge of Credit or Rates eTrading workflows and market structure Proficiency in debugging/profiling JDK based languages (Java/Scala/Kotlin/Clojure) Advanced work with JDK CI/CD and build toolchains including Maven, Gradle, SBT, Jenkins Experience with modern ...

hands‐on technical delivery and oversight of production systems. This position would be ideal for any strong software engineer with strong proficiency in Java or similar languages, an interest in sports betting, and the ambition to work on high‐impact projects amongst a friendly and intelligent team! Key Responsibilities Develop … minimum of 5 years of commercial experience in a SWE role focussed on implementing complex requirements within a low latency microservice architecture Excellent Java skills (or similar languages, e.g. C#), with the ability to write high-quality, performant, and well‐documented code independently Demonstrable experience working with different architectures ...

data pipelines and services* Develop batch and ELT/ETL data workflows for ingesting and processing large datasets* Work with technologies such as Python, Java, Spark, SQL, and Airflow* Apply good software engineering practices, including testing, documentation, and CI/CD* Contribute to cloud‐based systems (AWS), focusing on reliability … working as a data or software engineer on production systems* Strong skills in Python and experience with at least one backend language (such as Java)* Understanding of data engineering concepts such as data lakes, batch processing, and distributed systems* Experience building or operating data pipelines using tools like Spark ...

writing and launching the final, high-speed code. Key Skills: Core Engineering: 10+ years of professional software engineering experience, primarily focused on low-latency Java . Domain Expertise: Deep understanding of the Rates asset class and Electronic Trading. (Note: Exceptional candidates with an Equities or Credit background will be considered … Environment: Proven track record working within a Tier 1 investment bank or top-tier buy-side firm. Tech Stack: Strong hands-on experience with Java , Spring , and modern deployment ecosystems ( Containers/Kubernetes ). Communication: Exceptional communication skills with a proven ability to speak the language of traders, understand their ...

merchants, or supporting the integration of our private and public cloud platforms. Job Responsibilities Participates in, design and develop scalable and resilient systems using Java or Python to contribute to continual, iterative improvements for product teamsExecutes software solutions, design, development, and technical troubleshootingCreates secure and high-quality production code … diversity, opportunity, inclusion, and respectRequired qualifications, capabilities, and skillsHands-on practical experience in system design, application development, testing and operational stabilityProficient in coding in Java or Python languagesExperience in developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languagesOverall ...

merchants, or supporting the integration of our private and public cloud platforms. Job Responsibilities Participates in, design and develop scalable and resilient systems using Java or Python to contribute to continual, iterative improvements for product teams Executes software solutions, design, development, and technical troubleshooting Creates secure and high-quality production … respect Required qualifications, capabilities, and skills Hands-on practical experience in system design, application development, testing and operational stability Proficient in coding in Java or Python languages Experience in developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languages ...

intersection of quantitative research and production engineering. You’ll help design and implement sophisticated pricing, hedging and optimisation models within high-performance, distributed Java systems. What you’ll be doing Building production‐grade pricing, hedging and optimisation models in Java Developing client pricing, spread optimisation and liquidity models Designing automated … logic across resilient, multi‐region trading systems Working closely with quantitative researchers, traders and engineers What we’re looking for 5+ years of advanced Java development experience Strong commercial experience with Java 17 or later , ideally Java 21 Excellent knowledge of concurrency, object-oriented design and performance engineering Experience building ...

real impact.**Job Overview**An **Digital Assets Platform Senior Blockchain Engineer** must be a highly motivated and proactive hands-on software engineer (**Back End, Java Focus**), have a proven ability and experience working with web applications in production. The successful candidate will be part of the core team continuing … full software development and testing lifecycle. Experience from financial services industry is a plus.* Proven experience and expertise with Backend web development with Java spring* Proven experience in web3 application development is a plus* Solid experience and expertise developing web applications using asynchronous programming and communication* Experience and expertise developing ...