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Top Java Developer Jobs in London

61+ Job Results
20 Days Ago
London, UK
166 Employees
5-7 Years of Experience
166 Employees
5-7 Years of Experience
Marketing Tech • Software • Automation
Lead Java Developer at Storyteq responsible for hands-on software delivery in a Unix-Based environment, providing technical leadership, estimating development effort, conducting code reviews, and working closely with clients. Requires at least 5 years of Java development experience and expertise in Spring MVC/Boot framework. Desirable skills include team leadership, mentoring, and responsive design.
18 Days Ago
London, UK
Hybrid
289,097 Employees
3-5 Years of Experience
289,097 Employees
3-5 Years of Experience
Financial Services
As a Software Engineer III at JPMorgan Chase, design and deliver market-leading technology products in a secure and scalable way. Responsibilities include executing software solutions, creating high-quality production code, identifying hidden problems in data, and contributing to team culture. Required qualifications include 4+ years of experience, strong Java coding skills, knowledge of microservices-oriented architecture, proficiency in Elasticsearch, and experience with React and TypeScript.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+19 More
6 Days Ago
London, UK
4,632 Employees
7+ Years of Experience
4,632 Employees
7+ Years of Experience
Fintech
The Agile Software Developer will execute end-to-end development and testing of software products in an agile lifecycle. Responsibilities include leading the evaluation of ideas, supporting innovation, tracking and reducing technical debt, collaborating with the team, and coaching technical staff. This role offers a hybrid work schedule with a combination of in-office and remote work.
24 Days Ago
London, UK
Hybrid
55,000 Employees
7+ Years of Experience
55,000 Employees
7+ Years of Experience
Fintech • Machine Learning • Payments • Software • Financial Services
Seeking a Senior Software Development Engineer to join a backend Java team in London, responsible for designing and developing software features for credit card consumers. The role involves working with APIs, SOLID principles, and collaborating within a self-organised team. Opportunity to work with cloud/AWS and solve real-world problems in a regulated environment.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+52 More
22 Days Ago
London, UK
Hybrid
6,000 Employees
7+ Years of Experience
6,000 Employees
7+ Years of Experience
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
Capco is seeking a Senior Backend Engineer experienced in Java to support the evolution of the Financial Services industry through modern, cloud-based platforms and Agile methodologies.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+31 More
20 Days Ago
London, UK
Hybrid
18,000 Employees
3-5 Years of Experience
18,000 Employees
3-5 Years of Experience
Cloud • Fintech • Machine Learning • Analytics • Financial Services
As a Senior Associate Application Engineer at Discover, you will build and release reliable software systems at scale. You will develop and maintain full stack solutions, contribute to agile ceremonies, and support production systems. Preferred qualifications include experience with Java, REST APIs, Agile methodologies, and CI/CD pipelines.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+59 More
9 Days Ago
London, UK
Remote
2,135 Employees
3-5 Years of Experience
2,135 Employees
3-5 Years of Experience
Information Technology • Consulting
Senior Scala Engineer role responsible for developing and maintaining Scala-based applications, collaborating with stakeholders, and ensuring quality through testing. Must have strong Scala and Java experience, knowledge of design patterns, and proficiency in REST-based services.
22 Days Ago
London, UK
Hybrid
6,000 Employees
7+ Years of Experience
6,000 Employees
7+ Years of Experience
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
Capco is seeking a Principal Backend Engineer experienced in Java to work on engaging projects in the financial services sector. The role involves demonstrating engineering best practices, expertise in various domains, architectural design, security contributions, team management, and communication with customers and non-experts. The ideal candidate will have a passion for working with cutting-edge technologies in finance.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+31 More
22 Days Ago
London, UK
289,097 Employees
3-5 Years of Experience
289,097 Employees
3-5 Years of Experience
Financial Services
As a Java Software Engineer II at JPMorgan Chase within the Asset and Wealth Management, Data and Analytics Instrument Team, you will execute software solutions, design, develop code, troubleshoot technical problems, and contribute to decision-making in a secure, stable, and scalable way. You will work on enhancing and delivering software components of the firm's technology products.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+19 More
3 Days Ago
London, UK
1,168 Employees
7+ Years of Experience
1,168 Employees
7+ Years of Experience
Big Data • Cloud • Software • Database
Senior Software Engineer responsible for implementing functionality, improving software architecture, and maintaining reliable operation of services at Fivetran. Required skills include Java programming, experience in distributed systems, cloud platforms, and problem-solving abilities.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+54 More
20 Days Ago
London, UK
Remote
Hybrid
1,200 Employees
7+ Years of Experience
1,200 Employees
7+ Years of Experience
Information Technology • Productivity • Software • Infrastructure as a Service (IaaS)
Senior Backend Software Engineer working on Java and Kotlin backend applications, contributing to developing new features, maintaining codebase, and exploring new technologies in an agile environment.
Top Benefits:
401-K
Company Outings
Customized Development Tracks
+41 More
2 Days Ago
London, UK
184 Employees
7+ Years of Experience
184 Employees
7+ Years of Experience
AdTech • Marketing Tech
As a Senior Software Engineer at VIOOH, you will work on extending the Java codebase, developing back-end services and microservices, and contributing to architectural and design decisions. You will collaborate with a dynamic team in a hybrid workplace environment, focusing on continuous improvement and innovation.
23 Days Ago
London, UK
Remote
147 Employees
7+ Years of Experience
147 Employees
7+ Years of Experience
Blockchain
Independently investigate and design complex systems, optimize system performance, translate business requirements into functional applications, review and verify code adherence to quality standards, identify and solve bugs, and maintain code quality. Required experience in Java applications, middleware principles, Java technologies, Spring frameworks, software design, architecture, event processing models, REST, and more.
15 Days Ago
London, UK
378 Employees
3-5 Years of Experience
378 Employees
3-5 Years of Experience
Marketing Tech • Software
As a Senior Java Developer at Konrad, you will be responsible for developing web applications using Java and Spring Boot, conducting code reviews, and researching new technologies. You will collaborate with a high-skilled team to deliver high-quality software solutions.
7 Days Ago
London, UK
2,000 Employees
3-5 Years of Experience
2,000 Employees
3-5 Years of Experience
Fintech • Financial Services
Starling, a leading digital bank in the UK, is seeking Software Engineers proficient in Java. The role involves building tooling used by engineers on a daily basis and contributing to the continuous evolution of their fintech platform. The company values clean coding, simple solutions, and innovative problem-solving approaches.
12 Days Ago
London, UK
110 Employees
5-7 Years of Experience
110 Employees
5-7 Years of Experience
Software • Analytics
Landytech is seeking a Java/Kotlin Backend Lead Developer to design and build solutions based on business requirements, coach and help the team, deploy pipelines with Azure DevOps, work on REST APIs, database access, and more. The ideal candidate should have a Bachelor's degree in Computer Science, 4-6 years of experience in Java Backend development, familiarity with micro-services/cloud architecture, and experience with various technologies including Java, Kotlin, Spring Boot, and Docker.
6 Days Ago
London, UK
490 Employees
5-7 Years of Experience
490 Employees
5-7 Years of Experience
Mobile • Software
Looking for experienced Java/Kotlin Backend Developers to design and implement robust and scalable backend solutions. Collaborate in an Agile environment, mentor junior developers, and contribute to team growth and success.
13 Days Ago
London, UK
Remote
4,900 Employees
7+ Years of Experience
4,900 Employees
7+ Years of Experience
Fintech • Payments
Seeking a highly motivated Senior Software Engineer with experience in Java and C# to work on cloud-based microservice solutions for payments. Must be able to switch between tech stacks easily and have a strong background in software architecture and design. Experience with Nest.JS, AWS, and CI/CD practices is preferred.
Top Benefits:
401-K
Adoption Assistance
Company Equity
+18 More
16 Days Ago
London, UK
2,000 Employees
3-5 Years of Experience
2,000 Employees
3-5 Years of Experience
Fintech • Financial Services
Starling, the leading digital bank in the UK, is looking for Software Engineers with a passion for building tooling in Java. Join a fast-paced, collaborative environment focused on innovation and disruptive technology to transform banking for the better.
78 Employees
5-7 Years of Experience
eCommerce • Consulting
Freelance Senior Software Engineer for a fintech company working on a full stack greenfield platform build primarily in Kotlin and Spring framework. Hybrid working model in London office. Responsible for providing engineering expertise, employing modern development practices, and adapting to new technologies.
8 Days Ago
London, UK
223,850 Employees
7+ Years of Experience
223,850 Employees
7+ Years of Experience
Fintech
Senior Low Latency Software Engineer (Java) role at Citi, working on low-latency systems and application framework engineering in London. Responsibilities include partnering with management teams, resolving high-impact problems, providing expertise in applications programming, and more.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+20 More
9 Days Ago
London, UK
379 Employees
5-7 Years of Experience
379 Employees
5-7 Years of Experience
Fintech • Information Technology • Payments • Financial Services
Join Mangopay as a Senior Java Software Engineer to power payment infrastructure and operations for marketplaces. Collaborate on integrating new payment methods, maintain existing features, and contribute to core payment services. Take hands-on roles in guiding development activities, proposing technical improvements, and leading projects.
13 Days Ago
London, UK
Remote
900 Employees
7+ Years of Experience
900 Employees
7+ Years of Experience
Blockchain • Software • Web3
Seeking an experienced Senior Java/Kotlin Backend Engineer to join the team, responsible for building and maintaining server-side systems using Java/Kotlin, blockchain, and zk-rollups. Must have experience in consensus algorithms and working in an Open Source environment. Remote-friendly start-up environment with a focus on diversity and transferable skills.
Top Benefits:
401-K
Company Equity
Company Outings
+26 More
8 Days Ago
London, UK
Remote
326 Employees
3-5 Years of Experience
326 Employees
3-5 Years of Experience
Sports
Develop highly-scalable mobile internet backends for millions of users using Java, Spring Boot, Spring Cloud, Docker, Kubernetes, MySQL, MongoDB, Redis, and RabbitMQ. Participate in code reviews, respond to support calls, mentor team members, and adhere to standard architecture patterns.
13 Days Ago
London, UK
379 Employees
7+ Years of Experience
379 Employees
7+ Years of Experience
Fintech • Information Technology • Payments • Financial Services
Principal Java Software Engineer at Mangopay responsible for developing software in a modern cloud architecture using Java and other technologies. Key responsibilities include learning APIs, working with different APM, creating queries using GraphQL, and leading architecture decisions.
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