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Top Java Developer Jobs in London

Reposted 17 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Information Technology • Financial Services
The Full Stack Java Developer will design, build, and maintain applications for Securities Lending, focusing on backend APIs and data features, while collaborating with cross-functional teams and mentoring junior engineers.
Top Skills: AngularApache CassandraIgniteJavaJavaScriptJunitKafkaMicroservicesMssqlRedisSpringSybaseTypescript
2 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The role involves designing and maintaining scalable services, producing public APIs, mentoring junior engineers, and collaborating across teams. Strong Java and Spring Boot experience is essential.
Top Skills: JavaKafkaRelational DatabasesSpring BootSQL
Reposted 2 Days AgoSaved
Easy Apply
Hybrid
London, UK
Easy Apply
Mid level
Mid level
Fintech • Software • Financial Services
Build and maintain an enterprise back-office system emphasizing Java back-end development and ReactJS front-end, focusing on microservices and event-driven architectures.
Top Skills: Apache KafkaApache SolrApache ZookeeperAws DocumentdbCi/CdDockerHashicorp VaultJavaKubernetesMongoDBReact
Reposted 2 Days AgoSaved
Easy Apply
Hybrid
London, UK
Easy Apply
Senior level
Senior level
Fintech • Software • Financial Services
Lead the design, development, and delivery of back-office applications for Cleared Derivatives, focusing on Java back-end and ReactJS front-end, with responsibilities including microservices architecture and deployment on Kubernetes.
Top Skills: Apache KafkaApache SolrApache ZookeeperAws DocumentdbDockerHashicorp VaultJavaKubernetesMongoDBReact
4 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Join Wise's Contacts team to build scalable systems for managing recipients. Responsibilities include designing APIs and collaborating on product development.
Top Skills: Java 8+Non-Relational DatabasesRelational DatabasesRestful ApisSpring Boot
4 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
As a Senior Software Engineer, you will build a fraud detection engine, collaborating with multiple teams to deliver and support Acquiring products.
Top Skills: JavaKafkaRabbitMQSQL
4 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Join Wise's Consumer Onboarding team as a Senior Software Engineer to build scalable onboarding systems and enhance customer experience.
Top Skills: GoJavaPythonRestful Apis
4 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Information Technology • Financial Services
As a Senior Java Full Stack Engineer, you'll design and implement scalable microservices and client-facing applications, mentor junior developers, and collaborate across teams to innovate in financial technology, with a focus on AI integration.
Top Skills: Ai Tooling And FrameworksDockerGitGrpcHibernateJavaKafkaKubernetesMavenReactRestSpring Boot
5 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The Senior Software Engineer II will develop web applications, manage product design, and collaborate across teams to enhance customer investment experiences at Wise.
Top Skills: JavaKafkaNon-Relational DatabasesRelational DatabasesSpring Boot
5 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The role involves defining and expanding Wise's asset management product, focusing on user experience and technical foundations, while collaborating across teams.
Top Skills: JavaKafkaSpring Boot
Reposted 3 Hours AgoSaved
In-Office
London, UK
Senior level
Senior level
Information Technology • Consulting
Lead the development of scalable cloud-native solutions using AWS and Java. Provide technical leadership, mentoring, and manage high-complexity projects in agile environments.
Top Skills: AWSDockerGitlab CiJavaSpring BootTerraform
Reposted 6 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Professional Services • Consulting • Energy • Financial Services • Cybersecurity • Generative AI
As a Principal Backend Engineer, you will build scalable backend services with Java, design APIs, implement microservices, and work with AWS cloud technologies.
Top Skills: AWSCi/CdCloudFormationJavaKafkaSpring Boot
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2 Days AgoSaved
Hybrid
London, UK
Junior
Junior
Consulting
The Java Engineer will develop scalable Java applications, collaborate with teams, and apply agile practices. Key responsibilities include problem-solving and delivering complex solutions.
Top Skills: AWSJavaJava 8Java Oops
Reposted 7 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Information Technology • Financial Services
Responsible for software development and testing within the Investment and Trading engineering team, focusing on delivering innovative investment solutions and enhancing software quality and performance.
Top Skills: AngularAPIsAzure CloudCassandraDockerGrpcJavaKafkaKubernetesMssqlNode.jsProto-BuffsSpring
8 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
As a Senior Software Engineer in the Recommend team, you will enhance the recommendation platform and reward systems, collaborating with cross-functional teams to ensure excellent customer experiences.
Top Skills: JavaKafkaKotlinRelational DatabasesSpring Framework
Reposted 2 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Senior level
Senior level
Blockchain • Fintech • Financial Services • Cryptocurrency • Quantitative Trading
As a Java Developer, you'll build the crypto Lending systems for our Prime services platform, collaborating with various business facets.
Top Skills: AWSDockerJavaKafkaKubernetesSpring
Reposted 3 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Analytics
Lead a Scrum team to design, develop, test and support scalable Java-based applications critical to SwapClear clearing operations. Drive high-quality code (Java 17+, Spring), contribute to frontend and cloud/container deployments, implement test automation, participate in production support (including rota), and document system designs while collaborating across business and CI teams.
Top Skills: ApacheBehavior Driven DevelopmentCi/CdCloud PlatformsContainer TechnologiesCSSFpmlHTMLJava 17Javascript FrameworksMessage BrokersMicroservicesObservability ToolsOrm ToolsRelational DatabasesRestful ServicesSpring BootSpring MvcSQLTest Driven Development
Reposted 3 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Financial Services
The role involves the technical implementation of FX trading systems, collaboration with teams, system architecture design, and enhancing deliverable quality. Candidates should have experience with FX, ultra low-latency development, and strong communication skills.
Top Skills: Fx Trading SystemsJavaUltra Low-Latency Development Practices
Reposted 3 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Information Technology • Consulting
Design and develop high-performance Java applications for real-time trading and risk systems, optimizing performance and providing production support.
Top Skills: JavaKafkaLinuxSolaceUnix
4 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Information Technology • Consulting
The role involves embedding in a cross-functional team to develop JVM applications using TDD, drive design and implementation, and mentor team members. Extensive experience in Java or Kotlin and TDD is required.
Top Skills: JavaKotlinPair ProgrammingTdd
Reposted 11 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Fintech • Mobile • Payments • Software • Financial Services
The Senior Software Engineer will design and implement tools for liquidity management, lead technical initiatives, and mentor junior engineers, directly impacting product and customer solutions.
Top Skills: AWSAzureFlinkGCPHadoopJavaKafkaSparkSpring Boot
Reposted 6 Days AgoSaved
Hybrid
London, UK
Expert/Leader
Expert/Leader
Artificial Intelligence • Sports
As a Principal Java Engineer, you'll design and develop scalable backend services for live football events, working in an agile team and mentoring others.
Top Skills: AWSDatadogDockerGithub ActionsJava 17+KafkaKubernetesRabbitMQSpring BootTerraform
Reposted 6 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Sports
The Java Engineer will develop and optimize data-intensive backend services, manage data feeds, and work on real-time insights for sports events.
Top Skills: AWSDatadogFlinkGithub ActionsJavaKafkaOpentelemetryPrometheusRabbitMQSparkSqsTerraform
Reposted 12 Days AgoSaved
Hybrid
London, UK
Mid level
Mid level
Artificial Intelligence • Cloud • Information Technology • Legal Tech • Productivity • Software
As an AI Software Engineer, you'll design, develop, and deploy scalable AI systems, collaborating across teams to enhance product features using cutting-edge technologies in cloud-native environments.
Top Skills: AICi/CdDockerGithub ActionsHelmJavaKubernetesMlScala
Reposted 13 Days AgoSaved
Hybrid
London, UK
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Legal Tech • Productivity • Software
The Principal AI Software Engineer will design retrieval systems, optimize production, and work directly with customers to implement AI solutions for legal documents.
Top Skills: AzureDevOpsJavaKubernetesLlmsScala
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