1 to 25 of 35 Permanent Java Developer Jobs in London

Lead Java Developer/Software Engineer London/WFH to £115k Are you a hands-on Java Developer with leadership skills? You could be progressing your career in a Lead Java Developer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. As … a Lead Java Developer you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/30). You'll set the technical direction, mentor engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll … be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City More ❯

Java Developer/Backend Software Engineer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Java Developer with Kotlin skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise … in trading silver and gold. As a Java Developer you'll collaborate with the Lead Engineer on the core trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack … includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly Agile team environment. WFH Policy: You'll join the team in the West London office with flexibility to work from home twice a week. About you More ❯

Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering requirements and designing … Advocating for and contributing to best practices in software engineering across teams and projects Key skills and experience: Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯

Java Developer/Backend Software Engineer (Java AWS) London/WFH to £100k Opportunity to progress your career in a senior, hands-on Java Developer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's in it for you: Salary to … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Java Developer you will join a fairly new team working on a new crypto offering to design, develop and implement high performance cloud-native backend services including owning DevOps … processes to ensure systems are robust, secure and observable. You'll be working with a modern tech stack using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon More ❯

Java Developer/Backend Software Engineer (Java AWS) London/WFH to £100k Opportunity to progress your career in a senior, hands-on Java Developer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's in it for you: Salary to … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Java Developer you will join a fairly new team working on a new crypto offering to design, develop and implement high performance cloud-native backend services including owning DevOps … processes to ensure systems are robust, secure and observable. You'll be working with a modern tech stack using Java, Spring Boot, CI/CD, Kubernetes, AWS, EKS and Grafana/Splunk. About you: You have advanced backend software engineering experience with Java, Spring Boot, REST, Postgres, Redis You have experience of running production workloads on Kubernetes (Amazon More ❯

Lead Java Developer/Backend Software Engineer London to £135k Do you have advanced Java technical knowledge combined with team leadership skills? You could be progressing your career at the Investment Management arm of a global bank. As a Lead Java Developer you will head up a small, globally distributed team responsible for writing production … quality Java code used for pricing and hedging FX instruments and overseeing the algorithms' performance intraday. You'll spearhead a project to modernise the FX Risk and post-trade platform to a modern microservices environment, collaborating with the business and providing technical guidance, code reviews and 1-2-1s to develop the engineers in your team and ensure … Location/WFH: You'll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including multithreading You have team leadership experience, including technical project leadership, code reviews, 1-2-1s, developing others You have experience in a Capital Markets environment, FX preferred More ❯

Senior Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering requirements and … Advocating for and contributing to best practices in software engineering across teams and projects Key skills and experience: Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯

Senior Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering requirements and … projects Key skills and experience: Previous experience working within a consulting organisation or the public sector is essentail Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯

Fidessa Developer (Java Spring Boot API) London to £135k Are you an experienced Java Developer with a strong knowledge of Fidessa and an interest in Capital Markets? Join the Investment Management division of a global bank, where you'll play a key role in shaping their trading technology by enhancing and evolving the Fidessa Order Management … You'll work on high-impact projects, collaborating with regional and global stakeholders to deliver robust, scalable solutions in a fast-paced financial environment. Your Role As a Fidessa Developer, you will: Design and implement new features and enhancements on the Fidessa platform Build high-performance services using Java, Spring Boot and RESTful APIs Collaborate closely with stakeholders … Location/WFH: You'll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including Spring Boot and APIs You have strong experience of developing on Fidessa OMS You have an understanding of Capital Markets You have excellent communication and collaboration skills You More ❯

Lead Full Stack Java Developer - SC Cleared NEW PERMANENT OPPORTUNITY FOR A LEAD FULL-STACK JAVA DEVELOPER IN LONDON WITH SC CLEARANCE Location: London (Hybrid) Salary: £80,000 - £95,000 per annum Clearance: Active SC Clearance required To apply: email The Company Join a specialist technology consultancy delivering complex, mission-critical projects across UK Government and … clients to design, build, and modernise secure systems that underpin national operations - tackling some of the most demanding challenges in government technology. The Role As a Lead Full Stack Java Developer , you will guide a small team of engineers while remaining hands-on in the design and development of high-performance, secure applications. You'll play a key … drive best practices and technical excellence across projects. Key Responsibilities Lead a team of developers delivering scalable, secure full-stack solutions for critical government systems. Design, build, and maintain Java-based back-end services and modern front-end interfaces. Collaborate with architects and technical leads to define system design and integration patterns. Ensure code quality, maintainability, and performance through More ❯

Job Description: Lead Java Developer 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead Java Developer to join one of our government clients on a large-scale digital transformation programme. You'll lead a team delivering modern, cloud-native solutionsrebuilding internal … systems, creating efficient digital processes, and ensuring scalable, high-quality software delivery. As Lead Java Developer you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and … as Terraform. Create, maintain, and optimize CI/CD pipelines using GitLab CI. Collaborate with designers and front-end developers to deliver modern, responsive UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background More ❯

Fidessa Developer (Java Spring Boot API) London to £135k Do you have strong Java coding skills combined with experience of developing on the Fidessa order management system? You could be progressing your career at the Investment Management arm of a global bank, gaining an indepth knowledge of Capital Markets. As a Fidessa Developer you will design … Location/WFH: You'll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including Spring Boot and APIs You have strong experience of developing on Fidessa You have an understanding of Capital Markets You have excellent communication and collaboration skills You are … degree educated in Computer Science or similar technical or numerate discipline What's in it for you: As a Fidessa Developer (Java Spring Boot API) you will receive a competitive Salary to £135k Bonus Pension One day work from home per week Continuous training and career progression opportunities Apply now to find out more about this Fidessa Developer More ❯

Java Developer/Backend Software Engineer (Java AWS) London/WFH to £100k Opportunity to progress your career in a senior, hands-on Java Developer role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's in it for you: Salary to More ❯

Contract Java Developer (Inside IR35) | SC Cleared We are seeking a highly skilled Contract Java Developer with active SC Clearance to join a critical project on a long-term contract. This is a crucial role for a candidate who can hit the ground running and contribute to a significant public sector programme. Key Information IR35 Status … to problem-solving. You will be working with a modern tech stack to deliver a new solution for a high-profile client. Required Skills & Experience Extensive commercial experience with Java 8+ . Proven expertise with RDBMS , specifically designing schemas and optimising complex SQL queries. Strong background in building and consuming RESTful APIs and microservices. Hands-on experience with Apache … Kafka for streaming data and event-driven systems. Experience with Spring Boot and cloud platforms (e.g., AWS, Azure) is highly desirable. If you are a talented Java contractor with the required clearance and are comfortable working inside IR35 via an umbrella company, please get in touch with your latest CV. More ❯

recruit candidates from different backgrounds and foster a work environment that encourages employees to collaborate and learn from each other, completely free of barriers. Your role: As an Intermediate Java Developer at Global Relay, you'll be using leading edge technologies to build pioneering products that are used by tens of thousands of users globally to solve real … also get to tackle interesting and engaging problems to do with scalability and high availability in big data environments. At Global Relay we are continuously pushing the boundaries of Java technology. This is an opportunity to work alongside some of the best Java developers in London and apply your craft in an environment that encourages creative thinking and … that is clean, well-tested, well-reviewed, performant and secure then you'll fit in around here. Your responsibilities: Work as part of an agile development team to write Java code for enterprise services Write unit and integration tests for your Java code Design, in collaboration with team, the software implementations that satisfy business requirements Collaborate with QA More ❯

SC + NPPV3 Cleared Java Developer - 6 months+ - £Inside IR35 - Remote with occasional travel to London Please note: Candidates must have a current and active SC and NPPV3 Clearance- unfortunately, applications without this cannot be considered. Looking for a number of SC + NPPV3 Cleared Java Developers to work on a Law Enforcement programme. Key Responsibilities: Work … on data mapping and report writing in Java. Essential Skills: Java AWS Spring Boot Kafka Desirable Skills: React JavaScript SC + NPPV3 Cleared Java Developer - 6 months+ - £Inside IR35 - Remote with occasional travel to Londo More ❯

SC + NPPV3 Cleared Java Developer - 6 months+ - £Inside IR35 - Remote with occasional travel to London Please note: Candidates must have a current and active SC and NPPV3 Clearance- unfortunately, applications without this cannot be considered. Looking for a number of SC + NPPV3 Cleared Java Developers to work on a Law Enforcement programme. Key Responsibilities: Work … on data mapping and report writing in Java. Essential Skills: Java AWS Spring Boot Kafka Desirable Skills: React JavaScript SC + NPPV3 Cleared Java Developer - 6 months+ - £Inside IR35 - Remote with occasional travel to Londo More ❯

Contract Java Developer (Inside IR35) SC Cleared We are seeking a highly skilled Contract Java Developer with active SC Clearance to join a critical project on a long-term contract. This is a crucial role for a candidate who can hit the ground running and contribute to a significant public sector programme click apply for full More ❯

1. Job purpose We are looking for a sharp Senior Java Developer to play a key role in a small collaborative team building trading venues and associated infrastructure. We follow rapid development and deployment cycles for projects and share ownership of the entire codebase, so you will get great experience across a variety of exchange applications and financial … product types. We care about the code that we write and we want a developer that is more interested in writing clean, maintainable, efficient code rather than a quick hack. Any former experience with specific cryptocurrencies, and/or related skills such as decentralized finance (DeFi), tokenisation, trading, matching engine, clearing and settlement as well as capital markets system … integration will be a very useful complement to the above. 2. Key technology used Primary: Java 8+ Secondary: Spring FIX Hibernate (Postgres) Sockets Linux Maven AWS/Cloud deployment SVN/GIT EPL (Esper) JMS (ActiveMQ) 3. Methodology Agile/Scrum Continuous integration Test automation TDD 4. Requirements Must have Core Java SE Desire to learn Passion for More ❯

Full Stack Developer/Software Engineer (Java AWS React) London/WFH to £110k Are you a technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology … entrepreneurs with a hugely successful track record. As a Full Stack Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form the core of the platform. You'll collaborate closely with the Lead Engineer, Architect and … time, meeting up with colleagues in London; as the company grows there will likely be some in office requirements but with lots of flexibility. About you: You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface/front end development using React or Tailwind CSS You have a strong knowledge of modern More ❯

Java Software Engineer - Central London (2 days a week onsite) - Up to £60k (DOE) - Permanent Uneek are working with a forward-thinking organisation delivering high-impact software and AI solutions across secure and regulated sectors that are looking for a Java Software Engineer. On Offer: Up to £60k (DOE). Permanent role. 2 days a week onsite in … and upkeep of the automated test suite. Identifying gaps in products and processes, recommending and implementing improvements. What They're Looking For: 3+ years of professional experience in commercial Java software development. Strong understanding of Agile methodologies. Skilled in object-oriented design, with hands-on experience in AWS and SQL databases. Please get in touch for further details and More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, 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, and delight customers by delivering … inbound 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 be created, and how it should be … They believe that problems are solved with technology and experience, not process, and that mistakes are a normal part of learning. These roles would be suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, Linux, C# or Java; which might have been acquired as More ❯

clients. Solution is scalable to cover multiple locations and meet latency requirements. Team is growing fast and now we are looking for a strong and motivated FX Risk Lead Java Developer. Key Responsibilities Design, develop, and maintain Java-based microservices for high-throughput application Integrate and optimize Apache Ignite based solution: in memory data grid for FX trades … pipelines Conduct performance tuning, code reviews, and troubleshooting production issues Document system architecture, design decisions, and development processes What we want from you Strong hands-on experience with Core Java and multithreading in high load system Practice with JVM performance optimization and memory profiling Familiarity with distributed systems architecture and in-memory computing concepts Proven experience with in-memory More ❯

Join CMC Markets' Pricing and Risk team, where youll work on our low latency, high-frequency trading platform. You will use cutting-edge Java programming techniques so experience in this area is essential. As a Senior Developer, youll not only code but also take on key design responsibilities, shaping impactful projects. You'll mentor junior members of the … is an onsite role that will require you to work within our London office (near Liverpool street) 5 days on site per week . *** What Youll Do Expert Level Java Development: You will apply your in-depth knowledge of the Java programming language (21+) to implement world class trading and pricing systems. Collaborative Development: Design and develop innovative … tailored to the ever-changing financial landscape. Career Advancement: Opportunities for career growth, including leadership roles, are encouraged and supported by our mentorship programs. What Were Looking For Strong Java development experience within financial systems, ideally in pricing or risk-related applications. Not just a coder, but someone who also focuses on applying best practices, design patterns and principles More ❯

improvement. Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents.We enable Skill Set Java (11) Junit 5 React React Testing Library (Frontend Unit testing) Cypress (Frontend E2E Testing) Spring Boot (Microservice Architecture) Sybase Mongo DB Kubernatis Understanding on Cloud infra (Snowflake) Roles & Responsibilities More ❯