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Top Java Developer Jobs in London

Reposted 59 Minutes AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Payments • Financial Services
As a Backend Engineer at LemFi, you'll design and build scalable, cloud-native backend features, manage software lifecycles, ensure reliability, and collaborate with cross-functional teams to deliver compliant financial products.
Top Skills: DockerGithub ActionsJavaKafkaPostgresRedis
Reposted An Hour AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
HR Tech • Other • Professional Services
This role involves training large language models to improve code through evaluation and feedback, focusing on correctness, efficiency, and communication.
Top Skills: Java
Reposted 24 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Software • Consulting
As a Full Stack Engineer, you will handle the full development lifecycle, engage with stakeholders, and promote best practices in engineering.
Top Skills: AngularAWSAzureCSSDockerGCPGitHibernateHTMLJasmineJava 7/8JavaScriptJax-RsJax-WsJenkinsJpaKarmaReactRestSpringSQLTerraform
Reposted 24 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Mobile • Software
The Lead Java Engineer will oversee backend system design and implementation, mentor junior engineers, and ensure code quality while leading high-quality software development.
Top Skills: AzureCi/CdDynatraceGithub ActionsJava 17+KafkaKubernetesMicronautOpentelemetrySpring BootTerraform
2 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Artificial Intelligence • Healthtech • Information Technology • Other • Analytics
The Software Engineer III implements Scala/Spark pipelines for metric computation, develops Java-based backend services, and collaborates within a cross-functional team to ensure reliable workflows in Big Data environments.
Top Skills: APIsAWSElasticsearchJavaNeo4JScalaSpark
Reposted 2 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Information Technology • Consulting
The role involves delivering software solutions, advocating for high coding standards, applying automation techniques, and ensuring operational performance.
Top Skills: AWSCdCiDockerJavaKubernetesSpring
5 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Financial Services
Design and develop Java-based software solutions, optimizing performance and collaborating with cross-functional teams to meet business goals.
Top Skills: EnvoyGitlabIstioJavaJenkinsKafkaOpenshiftOracleRest ApiSpring BootStored Procedures
Reposted 5 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Payments • Financial Services
The role involves architecting and building scalable backend systems in Java, ensuring reliability and driving cross-functional impact in financial product development.
Top Skills: DockerGithub ActionsJavaKafkaPostgresRedis
Reposted 6 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Payments • Financial Services
The role focuses on modernizing legacy services using AI, improving delivery speed, and building AI-powered development infrastructure. Responsibilities include coding, implementing CI/CD pipelines, and training teams on AI workflows.
Top Skills: AIApi DesignCi/CdClaude CodeGithub CopilotJavaMicroservicesModel Context Protocol
Reposted 6 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Software
The role involves modernising automated testing strategies for Java/React apps, improving test quality, and reducing reliance on end-to-end testing, collaborating closely with developers.
Top Skills: CucumberJavaJestJunitMockitoPactPitestPlaywrightReactRest-AssuredSelenium
Reposted 6 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Analytics
The Senior Java Developer will design and build a client lifecycle management solution, focusing on Java/Spring Boot, AWS, and regulatory compliance while collaborating with various teams.
Top Skills: Active MqAngularAWSBpmnJavaJaxbJSONKafkaPostgresRest ApisSnsSpring BootSqsXML
Reposted 6 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
Blockchain • Software • Cryptocurrency
Design and optimize business systems for Oracle, participate in developing microservices architectures, and collaborate on database design and SQL optimization.
Top Skills: DubboJavaKafkaMybatisOracleRocketmqSpring BootSpring Cloud
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9 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Internship
Internship
Financial Services
The Technology Graduate Programme prepares participants to tackle software engineering projects in Python, Java, or C++. Participants work across teams, gaining mentorship and training aimed at building a long-term career.
Top Skills: C++JavaPython
9 Days AgoSaved
Easy Apply
In-Office
London, UK
Easy Apply
Senior level
Senior level
Information Technology • Software
As a Senior Software Engineer, you will develop and maintain Java APIs, collaborate with project teams, identify roadblocks in delivery, and mentor team members to enhance skills and knowledge.
Top Skills: AWSCi/CdJavaRestful Java Apis
Reposted 9 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Information Technology • Consulting
Design, develop, and maintain secure applications using Node.js and other technologies, focusing on building REST APIs, microservices, and contributing to government projects.
Top Skills: Aws CognitoAws EcsAws SqsDockerGitlabJavaJavaScriptKafkaNode.jsRest ApisTerraform
Reposted 10 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Digital Media
As a Senior Java Developer, you'll lead a team to build and enhance a programmatic advertisement platform using modern technologies, ensuring high performance and availability.
Top Skills: AWSAws SnsAws SqsGrafanaJava 21JenkinsKafkaKubernetesPrometheusRdbmsSpring BootTerraform
Reposted 11 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Payments • Financial Services
As a Senior Engineer you will develop scalable software solutions utilizing AI, focusing on API-first microservices, cloud-native applications, and high-quality code delivery.
Top Skills: AWSAzureCi/CdClaude CodeDockerGCPGitGithub CopilotGoGraphQLJavaKubernetesNode.jsPythonRestful
Reposted 11 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Analytics
Lead the development of software solutions for S&P Global's ratings business. Responsibilities include designing scalable applications, implementing REST APIs, and participating in Agile processes.
Top Skills: AngularAWSCSSHTML5JavaReactSpring BootXML
Reposted 11 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Artificial Intelligence • Sports
As a Senior Java Engineer, you'll develop and optimize backend services, contribute to design decisions, and manage data pipelines for high-impact football projects.
Top Skills: AWSDatadogDockerGithub ActionsJava 17KafkaKubernetesOpentelemetryPrometheusRabbitMQSpring BootSqsTerraform
12 Days AgoSaved
In-Office
London, UK
Mid level
Mid level
Fintech • Information Technology • Payments
Join Visa as a Software Engineer in Test, focusing on API testing, CI/CD integration, cloud solutions, and implementing QA best practices within an Agile team.
Top Skills: Api TestingAWSCi/CdCloud-Native ArchitecturesDockerGitlab CiJavaJenkinsKafkaKubernetesWiremock
Reposted 14 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech • Analytics
Lead the design and development of low latency screening systems, provide technical leadership, collaborate with teams, and manage project timelines.
Top Skills: AnsibleAWSCloud FormationDockerDynamoDBElasticsearchJavaKubernetesRdbmsTerraform
Reposted 4 Days AgoSaved
Remote
London, UK
Junior
Junior
Software
Join 3Pillar as a Junior Software Engineer, focusing on Java and Spring Boot to develop scalable software solutions and collaborate with teams.
Top Skills: AngularAWSCypressJavaPerlPythonReactRubyShellSpring BootTerraform
Reposted 14 Days AgoSaved
In-Office or Remote
London, UK
Mid level
Mid level
HR Tech • Other • Professional Services
Responsible for training large-language models by reviewing, ranking, and improving AI-generated code. Requires strong software engineering skills.
Top Skills: Java
Reposted 15 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Financial Services
Responsible for platform development and management, collaborating with stakeholders for requirements, and maintaining code quality by mentoring juniors and performing code reviews.
Top Skills: AWSIgniteJavaKafkaMemcachedPythonSnowflakeSQL
Reposted 15 Days AgoSaved
In-Office
London, UK
Senior level
Senior level
Fintech
The Senior Java Developer will lead the end-to-end development and testing of software products, collaborating with stakeholders and ensuring quality through manual and automated testing within an Agile framework.
Top Skills: C#Ci/CdDevOpsEclipse IdeJavaJenkinsMaven
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