251 to 275 of 346 Java Jobs in London

Engineer (Java JVM) London/WFH to £110k Are you a Site Reliability Engineer with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global CFD trading company that has been consistently voted … advisor to influence system design, ensuring reliability standards and driving improvements across the platform. You'll have a broad scope including hands-on coding (Java) to build tools and automation, incident response, observability, performance optimisation and operational excellence, working with large scale Java JVM distribution systems and message brokers such ...

international client is looking for a Java Developer with experience working with Pega in the Banking industry to join their team for a freelance B2B contract that is 6 months with a high chance of extension. This position is hybrid, with 2 days a week on-site in London. Project … details Position: Java Pega Developer Contract type: Inside IR35 Contract Length: 6 Months+ Ext Location: Hybrid in London (2 days on-site) Languages: English Skills and responsibilities Strong proficiency in Core Java Spring Boot and Microservices architecture Hands-on experience with PEGA BPM and certifications such as CSA Certified System ...

Permanent Location: London/Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading … bring Essential skills include strong experience in test automation with an ETRM platform with as many of the following as possible: Programming & Scripting: Python, Java, JavaScript, C++, Scriban Web Technologies: RESTful APIs, JSON, HTML, CSS, Node.js Databases: SQL Server, MySQL, PostgreSQL, MongoDB Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum ...

Senior Full Stack Developer - Active SC, Java, React Up to £550 per day (Inside IR35) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Full Stack Developer with Active SC, to join a business-critical programme. Key Requirements: Proven experience working … Full Stack Developer within the public sector Active Security Clearance (SC) Strong proficiency in Java and Spring Boot for Backend development Solid experience with React and Next.js for Frontend development Hands-on experience working with Cloud environments (AWS) Experience implementing CI/CD pipelines and familiarity with Docker/Kubernetes ...

Permanent Location: London/Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading … bring Essential skills include strong experience in test automation with an ETRM platform with as many of the following as possible: Programming & Scripting: Python, Java, JavaScript, C++, Scriban Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js Databases: SQL Server, MySQL, PostgreSQL, MongoDB Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile ...

Lambda, EKS, Elastic Beanstalk, IAM, Neptune - Azure: Data Factory, Databricks, Synapse, Data Lake, Event Hub, AKS, Power BI - Microservices and APIs using Java/Spring Boot - CI/CD using GitLab, Azure DevOps, Kubernetes, Helm, Terraform - Ensure cloud security, compliance, and resilience Data, Analytics & Governance: - Define enterprise data strategy … architecture and security teams Required Skills & Qualifications: - Strong experience as Technical BA and Architect - Expertise in AWS and Azure - Enterprise data modeling and integration - Java, Microservices, APIs - Agile/Scrum delivery - Banking, Financial Services, Media domain experience preferred Education: - Bachelors or Masters degree in Engineering or Technology ...

adoption throughout HL Digital. Contributing to technical decisions and shaping how we build our services. About You Experience building and deploying services with Java and Spring Boot. Comfort working in a cloud-native environment - Kubernetes (EKS), containers, scaling etc. An understanding of observability, using tools like Prometheus and Grafana … engineers within the team. Adaptable, thriving in a fast-moving environment where we ship things quickly and always look to evolve. Your Technical Toolkit Java (21) and Spring Boot AWS and cloud-native architecture RDBMS/NoSQL databases Event-driven and microservices architectures Containers (e.g., Docker, Kubernetes) CI/ ...

looking for a senior Java developer with genuine legacy Java EE experience to help reverse-engineer and maintain a production JBoss 4.0.5/EJB 2.1/XDoclet system. This is not a Spring Boot role. It’s for someone comfortable working in pre-annotation Java EE environments. ✅ Must-have experience … Java EE 1.4/5.0 era systems JBoss 4.x (or WebLogic 8/9, WebSphere 5/6) EJB 2.1 (CMP/BMP, Session Beans, EJB-QL) XDoclet 1.2.x (understanding + debugging code generation) Ant builds , legacy deployment descriptors MySQL 5.x, JDBC, JNDI 🔧 What you’ll do Reverse-engineer ...

Software Engineer in Test (Java backend & APIs) | Fintech Trading £70,000 - £90,000 + Bonus + Benefits Hybrid - 3 days/week in Central London Join a collaborative, engineering-led team ensuring the stability and performance of a high-volume, global electronic trading platform. You'll write clean, quality Java … based automation code to contribute to an internal Java-based test automation framework, catching issues before they hit production and helping deliver flawless, high-performance user experiences. What You'll Do Build and maintain robust Java test automation Work on an internal Java-based test automation framework used across ...

Software Engineer | Java Microservices | London (1 day per week on-site) | £63,000 – £74,000 We're partnering with a leading UK financial services organisation to recruit a Software Engineer with strong Java and microservices experience. This is an excellent opportunity for someone looking to take on a meaningful technical … services Designing, building, testing and implementing microservices-based solutions Collaborating to improve engineering practices, tooling, automation and processes Skills & Experience Required Solid experience developing Java software solutions Proven track record delivering well-tested, production-grade applications Strong understanding of microservices architectures and associated engineering requirements Experience working in an agile ...

Algos'. You will need to be strategic in approach, be hands on, and have the ability to lead projects in a Java-led environment. You will be responsible for directing, motivating, developing and managing the performance of the management team and key staff. In addition to directing and managing ...

Good knowledge of performance testing (ideally Jmeter). Good knowledge of BDD and TDD tools (ideally Cucumber). Ability to read and interpret code (Java Script/Java). Experience of working in an Agile environment. Experience with ticketing and workflow systems (ideally JIRA, Confluence and TestRail). Basic ...

work on a wide variety of projects and gain exposure to technologies including Java, Kotlin, NodeJS, Spring Boot, RESTful microservices, React, NoSQL databases and cloud platforms. Java Full Stack Engineer - Consultant/Senior Consultant Salary: £45,000-£70,748 Base locations: London, Manchester or Glasgow (Hybrid working) Organisation : Global … Consultancy Are you a passionate Java Full Sta click apply for full job details ...

also acceptable for this position. You will have demonstrated the following competencies to the proficiency level appropriate to the seniority of the role; JAVA programming experience as the core language, including Spring Boot. Fluent in writing JAVA coding. Experience with Kafka or a similar platform. Experience with Scala and Spark. ...

Back-End Engineer (Java-first; Python-friendly) - banking Build reliable, secure, and observable back-end services powering customer/colleague experiences and AI features. 6 month contract uk wide hybrid Core skills Java, Spring Boot, Spring Data/JPA (Hibernate), PostgreSQL. Eventing: Kafka; RESTful APIs (GraphQL a plus). Security ...

Graduate Quant Software Engineer (C++/Java – Trading Systems) | £55,000–£77,000 | Hybrid (London/Remote) Build technology that powers real trading. Join a high-performance engineering team developing low-latency, resilient backend systems used in live trading environments. You’ll work on complex technical challenges from … Design, build, and optimise backend components of real-time trading and risk systems Develop clean, efficient, high-performance code in C++ and Java Work closely with traders, quants, and senior engineers to deliver new features Solve complex problems around performance, reliability, and scale Contribute to architecture discussions and see ideas ...

Experience Required: 8+ Years Contract Type: Inside IR35 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are looking for a Java Engineer to join a high-performing team building low-latency, mission-critical applications. This is a contract role offering the opportunity to work on real … time, high-throughput systems within a fast-paced and innovative trading environment. The ideal candidate will be an expert in reactive Java programming, multithreading, and clean software design, with the mindset to thrive in high-pressure, performance-driven teams. Roles and Responsibilities: Develop and maintain high-performance, low-latency Java ...

Full Stack Software Engineer Java React Banking London This is a new and exclusive opportunity for a Full Stack Software Engineer who is primarily front office focused with React (75%) and Java (25%) to join this thriving front office derivatives team in this investment bank Role details Title: Full Stack … Software Engineer Technical focus - React (75%) and Java (25%) Employer: front office banking derivatives Permanent role salary £70-85,000 plus bonus and pension Location: London City and home working hybrid 50/50% Technical stack: primarily React focused with a java base This is an AVP Banking front office ...

Full Stack Software Engineer Java React Banking London This is a new and exclusive opportunity for a Full Stack Software Engineer who is primarily front office focused with React (75%) and Java (25%) to join this thriving front office derivatives team in this investment bank Role details Title: Full Stack … Software Engineer Technical focus - React (75%) and Java (25%) Employer: front office banking derivatives Permanent role salary £70-85,000 plus bonus and pension Location: London City and home working hybrid 50/50% Technical stack: primarily React focused with a java base This is an AVP Banking front office ...

Fullstack Java Software Engineer | Climate-Tech £75,000 – £95,000 + equity Remote (UK) with optional weekly meet-ups in Central London Revenue-generating, early-stage climate-tech business Java, JavaScript, CI/CD, Cloud Platforms We're partnered with a venture-backed climate-tech insurer tackling … code in a small team where engineering standards really matter. Ideal Profile: You're a mid-to-senior level Software Engineer Comfortable working with Java and ideally JavaScript Experience building and maintaining production systems with a focus on reliability, testability and clean architecture Confident taking ownership in an autonomous environment ...

Latency Java Developer - AVP London - 3 days in office up to £95,000 base Join a leading Fixed Income Trading team at an Investment bank to help redesign, rebuild and modernize their core rates trading platform. This area of the business are performing extremely well, seeing very strong returns. They … supporting various trading workflows. This project has multiple years of innovation and strategic development to be done. This is all done in low latency java, with latency at around 10 milliseconds. Requirements: 4+ years experience in Java Development Core Java, async programming, multi-threading Strong System Architecture Fundamentals Financial Services ...

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage … experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position to make decisions about what should ...

Senior Java Developer - AI/LLM - sought by trading company based in London - Contract (Remote option available for outstanding candidates) What We're Looking For Backend Engineering Expertise 8+ years of software engineering experience with strong Java backend skills. Proven track record in modernising production systems and designing APIs/ ...

Staff Engineer/Backend Developer (Java AWS PostgreSQL) London/WFH to £120k Are you a backend focussed technologist with leadership skills? You could be progressing your career, in a senior, hands-on role at a technology driven market research company that is scaling rapidly, having raised Series B funding … Staff Engineer you will take a lead role in architecting, developing and scaling the core platform with a focus on backend engineering with Java (there are also some services in Python and Golang) and rearchitecting the PostgreSQL database. As the most senior engineer you'll take project ownership, providing hands ...

Full-Stack Developer - Finance Technology (Java, Spark, Cloud) - Global Investment Bank We’re hiring a Full-Stack Developer to join a high-impact Finance/Regulatory Technology team within a leading global investment bank working on business-critical regulatory reporting platforms. You’ll help modernise legacy systems and build strategic … cloud-based data solutions used across the firm. You’ll work in a collaborative Agile squad focused on Java services, Spark data pipelines, and cloud transformation, partnering closely with Finance and Regulatory teams. Key Responsibilities Build and enhance full-stack applications for regulatory and financial reporting Develop Java backend services ...