1 to 25 of 31 Permanent Java Developer Jobs in London

Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Junior 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 … 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. ...

Senior Java Developer Hybrid - 2 days onsite Our client, a leading enterprise organisation undergoing significant digital transformation, is seeking an experienced Senior Java Developer to join their high-performing engineering team. This is an excellent opportunity for a seasoned professional who thrives in complex environments … enjoys working with modern Java technologies at scale. What you’ll bring: Proven experience in software design and development with Java-based technologies Experience in a senior developer or technical leadership role Strong, hands-on expertise with Java , Spring Boot , and microservices architecture Solid experience building ...

Java Developer/Software Engineer (Java AWS Kafka) London/WFH to £90k Are you a bright, ambitious Java technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital … designed for today's complex global markets. The company is experiencing great success in the US and is expanding into the UK. As a Java Developer you will join a small team responsible for building a brand new Futures Trading platform for the UK, primarily using Java ...

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 … 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. ...

Java Developer | Backend | Microservices | FinTech | London | Hybrid | £90k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users from … with partners such as Mastercard, Stripe, OpenAI to make sure they leverage latest technology in all their products.They are looking for an experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices ...

Senior Java Developer | Backend | Microservices | FinTech | London | Hybrid | £120k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users … with partners such as Mastercard, Stripe, OpenAI to make sure they leverage latest technology in all their products.They are looking for an experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices ...

Lead Java Developer | Backend | Microservices | FinTech | London | Hybrid | £140k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users … with partners such as Mastercard, Stripe, OpenAI to make sure they leverage latest technology in all their products.They are looking for an experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices ...

Java Developer Permanent Location: Home Based Salary: £70,000 - £75,000 Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer to join a leading technology consultancy … practices to evolve established platforms. Due to the nature of the work, active SC Clearance is essential . Key Responsibilities Design, develop, and enhance Java-based applications supporting legacy systems Contribute to iterative development within an Agile/Scrum environment Build and consume web services using REST/JSON ...

Java Developer Permanent Location: Home Based Salary: £70,000 - £75,000 Skills: Java 8, Spring, Maven, Git, JUnit, Web APIs (REST/JSON and XML/SOAP), SC Clearance We are looking to recruit an SC Cleared Java Developer to join a leading technology consultancy ...

months contract/Hyrbid/2 days in office London/750 per day Inside Ir 35 Senior Java Developer (VP) Role Overview We are seeking a Senior Java Developer with deep Electronic Trading expertise to join our E-Fixed Income (eFI) Development Team in London. … TransFICC connectivity within the eFI ecosystem Identify and eliminate performance bottlenecks through profiling, tuning, and architectural improvements Develop lock-free, allocation-free, performance-critical Java components Deliver high-quality software using Test-Driven Development and Domain-Driven Design Partner with Traders, Financial Engineers, and Business Analysts to translate trading ...

IMMEDIATE JOINERS !! Job Title: Java Developer Location: UK Experience: 2–5 years Education: Bachelors in Science (IT/Computer Science/Engineer) Employment Type: Full-Time UK based candidates only. Job Summary: We are seeking an experienced Java Developer with 2 to 3 years of hands … experience in building applications using Java, Spring Boot, and Microservices architecture. The ideal candidate should also have a basic understanding of JUnit for testing and cloud platforms. Key Responsibilities: Design, develop, and maintain backend services using Java and Spring Boot Build and maintain microservices and REST APIs ...

Lead Java Developer - £140k, Equity, Sign-on Bonus Java25, Springboot, Microservices, AWS, TDD, React I am working with a high-growth FinTech that’s about to enter a huge new chapter.They are a fast-scaling FinTech that’s in the middle of a major rebrand, new name … decision, nothing is top-down. It’s collaborative, thoughtful, and engineers shape the how, why, and when behind the product.They’ve just upgraded to Java 25, which the team is genuinely excited about. With eight product teams spanning credit, payments, business tools, growth, and customer experience, engineers are placed ...

Java Developer | London/Hybrid | £100,000 - £140,000 | Java 21 | Microservices | TDD | AWS | PostgreSQL | Kubernetes | Fintech | Digital Banking Looking to join a company who are making waves within the fintech space? Want to work with the latest Java technology? I am supporting a rapidly growing … backed by the same investors who backed the likes of Coinbase and Airbnb. They’re currently in growth mode and are looking for multiple Java Engineers from mid – Lead to come on board and build scalable, secure backend systems. A lot of what you will be working on will ...

Lead Java Developer - £85k & LondonJava, Springboot, Microservices, AWSI’m partnering with an established tech firm that’s been building digital platforms and mobile products for over 2 decades.They work with well-known businesses in highly regulated industries, where systems need to be secure, reliable and built properly. They … things are designed and improved, and there’s a real emphasis on clean code, testing and maintainability.Their current tech stack is a mixture of Java, Springboot, Microservices, Kakfa, AWS, CI/CD, SQL, Kubernetes to name a few areas. We need strong engineers who are great communicators ...

Mercator Digital is seeking a skilled Java Developer to join its growing consultancy team, supporting digital transformation projects across the public and private sectors. Youll work in collaborative agile teams, delivering high-quality, sustainable software solutions. Key Responsibilities & Requirements Strong Java development experience with a proven track ...

Senior Java Swing Developer – About the Role We’re looking for a Java Swing Developer to join a team working on a high-performance desktop trading platform. Working on a mission-critical system that supports FX Cash, deposits, futures, swaps, and more. The platform is rich … functionality, handles heavy loads with low latency, and underpins key trading and sales workflows. You’ll help maintain and evolve the current Java Swing UI, while preparing for a future transition to a modern microservices-based architecture. This role offers exposure to complex, real-time systems and the chance ...

Mercator Digital is seeking a skilled Java Developer to join its growing consultancy team, supporting digital transformation projects across the public and private sectors. Youll work in collaborative agile teams, delivering high-quality, sustainable software solutions. Key Responsibilities & Requirements Strong Java development experience with a proven track ...

client, a Tier 1 Investment Banking institution, is seeking a Lead Java Developer to be a key individual contributor in the rebuild of a business critical ecommerce platform. You will be working with the front office at all levels to ensure that the requirements, design and build … high quality development environment. FX or rates business knowledge is an essential for this role (flow and derivatives). Key tech experience requirements: Java programming, real time systems with an emphasis on low latency techniques Microservice architectures and grid computing React front end development or interactions with front ...

Back End Developer/SRE (Java JVM) London/WFH to £110k Are you a Back End Developer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global Fintech that has been … organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Back End Developer/SRE you will collaborate with development teams, as a trusted technical advisor to influence system design, ensuring reliability standards and driving improvements across ...

Lead Software Engineer (Java) – London/Hybrid Are you a Lead Backend Engineer with a strong background in Java and modern backend architecture? In this senior technical leadership role, you will set the technical vision, influence system design, and guide teams in delivering secure, scalable, and high-performing … discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice-based systems. ...

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 … 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 ...

JavaDeveloper-RemoteWorking LynxarecurrentlyworkingwithalargeITconsultancytohelpthemsourceaJuniorJavaDeveloper.OurclientislargeglobalConsultancywhoworkwithenterpriseclients,solvingtheirbusinessandtechnologyproblemsusingcuttingedgeSolutions. Responsibilities: Engagingintheentiresoftwaredevelopmentlifecycle,fromgatheringrequirementsanddesigningsolutionstocoding,testing,deploymentandongoingmaintenance Collaboratingwithstakeholdersandleadershiptounderstandandrefineprojectrequirements Workingondiverseprojectsandchallengesinaconsultancycapacity Advocatingforandcontributingtobestpracticesinsoftwareengineeringacrossteamsandprojects Keyskillsandexperience: MustbeeitherSCclearedoreligible ExperienceworkingasaJavaDeveloper Javadevelopmentexperience Experienceworkingwithincloudenvironments Ifthisrolesoundsofinterest,thenpleaseapplywithyourupdatedCV. ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your skills … work on meaningful, production-grade systems. What You'll Work On You'll be developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands ...

Java Full Stack Engineer Location: UK (Hybrid, with flexibility for client site travel) Type: Permanent Clearance: Eligible for UK security clearance Join a leading global consultancy driving digital transformation across industries. As a Java Full Stack Engineer , you'll work on high-profile projects that combine cutting-edge … collaborative, client-facing environment while growing your skills in a fast-paced consultancy setting. What You'll Do Build and maintain microservices using Java (Spring Boot) . Develop front-end applications with React, TypeScript , HTML, and CSS. Work with cloud platforms ( AWS, Azure ) and containerization tools ( Docker, Kubernetes ). ...

Senior Backend Engineer (Java)London (Hybrid – 1 day a week in the office)Salary up to £85,000I’m partnering with a well-established product-led technology company that builds high-traffic backend platforms used by large organisations operating in highly regulated markets across the UK, North America … seen significant growth over the last 5–6 years, with further scaling planned.This is business-critical software, reliability, accuracy and performance genuinely matter.The technology: Java, Springboot, Microservices, AWS, Kafka, CI/CD.The role goes beyond writing code, you’ll contribute to system design, architectural decisions, and long-term platform ...