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Top Java Developer Jobs in Belfast

Reposted 12 Hours AgoSaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
AdTech • Big Data • Digital Media • Software
The senior backend engineer designs and builds data ingestion pipelines, APIs, and low-latency microservices, collaborating cross-functionally.
Top Skills: AlbDockerDocumentdbEcsFargateGoHaproxyJavaKafkaMariadbMemcachePostgresRdsRedisScylladbTerraform
Reposted 5 Days AgoSaved
In-Office
Belfast, Northern Ireland
Junior
Junior
Consulting
Develop and implement Java-based software solutions, apply object-oriented principles, and collaborate with teams using AWS cloud technologies.
Top Skills: AWSJavaJava 8Java Oops
13 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
As a Senior Software Engineer, you will develop high-quality software solutions, mentor junior engineers, and collaborate across teams to enhance security products.
Top Skills: AWSGoJavaPythonSpringSpring Boot
Reposted 4 Days AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Junior
Junior
Big Data • Software
Develop open-source benchmarking tools, enhance Java-based framework, and produce credible results that showcase Aerospike's performance. Collaborate with cross-functional teams.
Top Skills: AWSGCPJavaLinux
17 Days AgoSaved
In-Office
Belfast, Northern Ireland
Junior
Junior
Consulting
The Java Engineer will design and implement scalable solutions using Java, collaborate with cross-functional teams, and apply agile best practices.
Top Skills: AWSJavaJava 8Java Oops
24 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Mid level
Mid level
Artificial Intelligence • Cloud • Information Technology • Legal Tech • Productivity • Software
The Software Engineer will support the IRM product, participate in agile processes, design software solutions, and collaborate with a team to fulfill customer needs.
Top Skills: .NetC#GitGrafanaJavaSpring FrameworkSQLWpf
21 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Cloud • Sales • Security • Software • Cybersecurity • Data Privacy
As a Mainframe Systems Programmer, you'll design and implement mainframe software, collaborate globally, and ensure code quality through testing and debugging.
Top Skills: AssemblerCIbm Z/OsJavaJclRexx
Reposted 2 Days AgoSaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
You will develop software using Java on AWS, contribute to microservices development, and produce quality documentation, collaborating in a Scrum team.
Top Skills: AWSJavaOraclePostgresSpringSpring BootSQL
Reposted 8 Days AgoSaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
As a Senior Java Developer, you'll lead software development using Java and AWS, collaborating in an Agile team, adhering to best practices, and creating maintainable solutions.
Top Skills: AWSJavaOraclePostgresSpringSpring BootSQL
6 Hours AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Cloud • Security • Software • Generative AI
The role involves improving Elasticsearch's concurrent indexing, maintaining cluster coordination, addressing performance issues, and supporting engineers. Requires strong Java and distributed systems knowledge.
Top Skills: ElasticsearchJavaNetty
Reposted 2 Days AgoSaved
In-Office or Remote
Belfast, Northern Ireland
Senior level
Senior level
Blockchain • Software • Cryptocurrency
The Senior Java Engineer will design complex systems, optimize performance, maintain code quality, and ensure application reliability. Responsibilities include translating requirements into applications and troubleshooting issues.
Top Skills: JavaKafkaMongoDBMySQLPrometheusRedisSpring Boot
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Reposted 2 Days AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Sports
Design and optimize scalable batch and real-time data pipelines using Apache Flink. Collaborate on production deployment and mentor junior engineers.
Top Skills: Apache FlinkApache KafkaAWSDockerGCPGrafanaJavaKubernetesPostgresPrometheusPythonSQLTerraform
10 Days AgoSaved
Remote
Belfast, Northern Ireland
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 10 Days AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
Develop and implement a proprietary streaming media product using Java and modern web technologies, collaborating with cross-functional teams and ensuring scalable solutions.
Top Skills: AWSAzureCouchbaseJavaNext.JsNode.jsPlaywrightReactSQL Server
Reposted 12 Days AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
The Java Full Stack Developer will create full-stack solutions using technologies like Java, React, and SQL while mentoring others, delivering scalable solutions, and implementing automation and AI in development processes.
Top Skills: AWSAzureCouchbaseJavaJIRANext.JsNode.jsNoSQLPlaywrightReactSQL Server
Reposted 15 Days AgoSaved
Easy Apply
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Software
As a Senior Java Developer at Behavox, you'll design and implement cloud-native backend systems, collaborate with team members, and ensure high product quality through rigorous testing, while leveraging modern technologies.
Top Skills: BigQueryGCPGoogle Cloud Pub/SubJava 17+KafkaMySQLPostgresPythonRabbitMQRedshiftSnowflake
Reposted 17 Days AgoSaved
Easy Apply
Belfast, Northern Ireland
Easy Apply
Junior
Junior
Information Technology • Consulting
As a Junior Software Developer, you'll train in Java and Scala, build real applications, and collaborate globally to solve business challenges.
Top Skills: JavaScala
Reposted 18 Days AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
The Full Stack Java Developer will design and implement a proprietary media product, collaborating across teams to develop scalable cloud-native applications with technologies like Java, Node.js, and React.
Top Skills: AWSAzureCouchbaseJavaJIRANext.JsNode.jsNoSQLPlaywrightReactSQL Server
Reposted 18 Days AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
The Full Stack Java Developer will design and develop scalable cloud-native applications for streaming media, collaborating with cross-functional teams.
Top Skills: CouchbaseJavaJIRANext.JsNode.jsNoSQLPlaywrightReactSQL Server
Reposted 18 Days AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Agency • Information Technology • Marketing Tech
Develop and maintain scalable microservices and RESTful APIs using Java and Spring Boot on AWS infrastructure. Collaborate with the team to deliver high-quality services.
Top Skills: AWSCi/CdDockerJavaPostgresSpring Boot
21 Days AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Fintech • Software • Financial Services
The Senior/Staff Backend Engineer will design and optimize backend services using Java and Apache Kafka, manage databases, mentor engineers, and ensure system scalability and reliability.
Top Skills: Apache KafkaAWSClickhouseCloudFormationDynamoDBGrafanaJavaPostgresPrometheusRedisTerraform
Reposted 23 Days AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting • Automation
As a Senior Product Engineer at Secfix, you will design, build, and maintain backend systems, collaborating with product teams and mentoring junior engineers, while leveraging AI tools for development.
Top Skills: Ai ToolsAWSGitlab Ci/CdGoHibernateJavaPostgresSpring BootSQLTypescript
Reposted 23 Days AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Consulting
The Senior Full Stack Engineer will develop innovative applications, manage the entire development cycle, and use XP with remote pairing.
Top Skills: BddCloud FoundryFunctional ProgrammingJasmineJavaJava StreamsJenkinsJunitKotlinKubernetesMockitoProtractorReactSeleniumSpringSpring BootTdd
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