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Top Backend Jobs in Belfast

9 Days Ago
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
AdTech • Big Data • Digital Media • Software
Senior Engineer responsible for designing, developing, and maintaining APIs and infrastructure for Magnite's advertising platform. Collaborate with teams, mentor engineers, and solve complex technical challenges.
Top Skills: Auth0C#DockerJavaJavaScriptJenkinsKubernetesNestjsNode.jsPythonReactTerraform
4 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
As a Senior Software Engineer for the Detections Platform, you'll design and develop scalable cloud-based systems that provide near-real-time security information. Collaborate on technical solutions, mentor teammates, and ensure engineering best practices are followed.
Top Skills: AWSAzureCassandraElastic SearchGoKafkaKubernetesLinuxPythonRedis
4 Days Ago
Remote
Belfast, Northern Ireland
Mid level
Mid level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
The Backend Engineer III at CrowdStrike will design and maintain backend features for the Kestrel platform, ensuring high performance and scalability while collaborating with various teams.
Top Skills: Go,Golang,Python,Git,Cassandra,Kafka,Opensearch,Kubernetes,Postgres,Redis,Aws Cloud
15 Days Ago
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Professional Services • Software • Energy
As a Senior Backend Software Engineer, you'll design and build services for a scalable platform, collaborating with cross-functional teams and mentoring others.
Top Skills: AWSAzureCi/CdDockerGoogle Cloud PlatformGroovyJavaKafkaKotlinKubernetesScala
6 Days Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Security • Software • Cybersecurity • Automation
As a Staff Backend Engineer at GitLab, you will enhance developer productivity by creating tools, mentoring engineers, and optimizing workflows.
Top Skills: AnsibleAWSAzureGCPGoGoogle Cloud RunRubySnowflakeTerraform
8 Days Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Security • Software • Cybersecurity • Automation
As a Backend Engineer, implement performance improvements for GitLab CI, collaborate with engineering teams, and maintain high code quality standards.
Top Skills: Ci/CdPostgresRuby On Rails
8 Days Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Security • Software • Cybersecurity • Automation
The Backend Engineer will contribute to GitLab-Runner's development, improve scalability, solve technical problems, and maintain coding standards while working in a remote team environment.
Top Skills: DockerGoKubernetes
Reposted 12 Days Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer, you will design and implement scalable backend services, optimize performance, collaborate with teams, troubleshoot issues, and maintain code quality.
Top Skills: .Net CoreAmazon AwsC#ElasticsearchElkGrafanaKafkaMongoDBPostgresPrometheusPython

Featured Jobs

14 Days Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
As a Staff Software Engineer, you will lead technical strategy, collaborate on product development, maintain system operations, and mentor team members in building scalable backend systems.
Top Skills: AWSKotlinKubernetesMySQLPythonSpark
2 Months Ago
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
The Senior Backend Developer will enhance Smartcat’s API Gateway, rebuild the product's core architecture, improve scalability, and ensure high performance while collaborating with cross-functional teams.
Top Skills: .Net Core (C#)Amazon AwsElasticsearchElk (Efk)GrafanaKafkaMongoDBNuxt 3PostgresPrometheusPythonTypescriptVue.Js 2/3
4 Days Ago
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Software
The Senior Software Engineer will collaborate with product teams to develop scalable backend services, enhance performance, and ensure high-quality code through reviews and knowledge sharing.
Top Skills: Amazon Web ServicesDjangoGithub ActionsJavaScriptPythonTerraformTypescript
Reposted 5 Days Ago
Belfast, Northern Ireland
Senior level
Senior level
Software
As a Senior Backend Software Engineer, you will design, develop, and maintain software systems, focusing on .NET technologies. You'll provide guidance to other engineers, drive technical decisions, and collaborate with product teams to meet system requirements. Your role includes developing APIs, troubleshooting issues, and implementing CI/CD pipelines while staying updated with industry best practices.
Reposted 6 Days Ago
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Information Technology • Payments
Lead design and development of payment network integrations, manage projects, ensure code quality, and provide technical leadership in a fast-paced environment.
Top Skills: Db2DockerJavaJavaScriptJeeJSONKafkaKubernetesMongo DbOracleRestSoapSQL ServerXML
Reposted 6 Days Ago
Belfast, Northern Ireland
Junior
Junior
Fintech • Information Technology • Payments
As a Software Engineer, you'll design and build advanced fraud detection platforms, develop secure and scalable systems, and engage in Agile development practices.
Top Skills: GitHadoopJavaJenkinsMavenMySQLRestful ApiScalaSparkSpring MvcSpring Boot
Yesterday
Remote
Belfast, Northern Ireland
Senior level
Senior level
Software
The Senior Backend Engineer will design, develop, and maintain the CMS platform with a focus on scalable backend systems, API performance, and mentoring junior engineers.
Top Skills: AWSAzureGCPGitJIRAMemcachedPostgresRedisRspecRuby On RailsSidekiq
Yesterday
Remote
Belfast, Northern Ireland
Junior
Junior
Cloud • Fintech • Cryptocurrency • NFT • Web3
As a Backend Software Engineer, you'll build scalable micro-services and tackle complex technical challenges while enabling rapid operational resilience and innovative tooling for cryptocurrency operations.
Top Skills: DockerGoGraphQLGrpcMongoDBProtobuffRuby On Rails
Reposted Yesterday
Remote
Belfast, Northern Ireland
Senior level
Senior level
Information Technology • Web3
As a Senior Backend Engineer, you'll enhance orchestration systems, optimize EVM performance, develop custom storage engines, and lead projects in blockchain technology.
Top Skills: GoKubernetes
Reposted 2 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Enterprise Web • Software
As a Senior Software Engineer on the Content Lake DX team, you will design and develop distributed systems, mentor teammates, and improve engineering culture.
Top Skills: GoNode.jsTypescript
Mid level
Fintech • Financial Services
As a QA Engineer, you'll develop and execute test cases for backend applications in a hybrid trading environment, collaborating with global teams on quality assurance processes.
Top Skills: BitbucketCucumberGitJavaJIRAMongoDBNoSQLOraclePythonSQL
Reposted 2 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Payments • Financial Services
As a Senior Java Developer at dLocal, you will build scalable, enterprise-level applications as part of a talented software team.
Top Skills: JavaMicroservices
2 Days Ago
Remote
Belfast, Northern Ireland
Mid level
Mid level
Blockchain • Consulting
As a QA Engineer, you'll test backend solutions, collaborate with development teams, and ensure product quality and stability within the MultiversX ecosystem.
Top Skills: ArtilleryChaiCircleCIDockerElasticsearchGatlingGitGithub ActionsGoGraphQLJavaScriptJenkinsJestKubernetesLinuxLocustMochaMolotovMongoDBMySQLNestjsPostgresPythonRabbitMQRedisRest ApiTerraformTimescaleTimestreamTypescript
2 Days Ago
Remote
Hybrid
Belfast, Northern Ireland
Junior
Junior
Blockchain • Consulting
As a Backend Developer, you will create and improve microservices for blockchain applications, develop REST API and GraphQL endpoints, and resolve complex bugs. You'll work with a dynamic team and be part of the blockchain revolution.
Top Skills: ExpressjsGitNestjsNode.jsTypescript
Reposted 3 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
AdTech • eCommerce
As a Senior Back-end/Full Stack Developer, you will design and maintain web applications, optimize databases, collaborate with teams, and ensure code quality through testing and reviews.
Top Skills: AWSCSS3DockerDoctrine OrmElasticsearchGitHTML5JavaScriptJqueryKubernetesLaravelMariadbMemcachedMySQLPHPPostgresRedisSymfonyVue
Reposted 3 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
Information Technology
The Sr Backend Engineer will design and maintain backend services using Ruby on Rails and AWS, ensuring high performance and data integrity while collaborating with front-end developers.
Top Skills: AWSCSS3DockerHTML5JavaScriptPostgresRuby On Rails
Reposted 3 Days Ago
Remote
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Gaming • Esports
As a Backend Engineer, you'll design and maintain backend systems for mobile games, collaborating with teams to develop features and optimize databases.
Top Skills: AzureC#CassandraHashicorp NomadKubernetesMongoDBPostgres
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