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Top Software Engineer Jobs in Belfast

Reposted 7 Days AgoSaved
In-Office or Remote
Belfast, Northern Ireland
Senior level
Senior level
Information Technology
As a Senior Software Engineer, you'll develop high-quality software solutions, mentor junior members, apply best practices in design and build, and contribute to technical decisions in a collaborative environment.
Top Skills: ActivitiAWSAzureBpmn 2.0CamundaContinuous DeliveryContinuous IntegrationFlowableJavaJbpm
Reposted 22 Days AgoSaved
Easy Apply
In-Office or Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Fintech • Financial Services
The Software Engineer will design, develop, and support the MEMX Trading system software, focusing on production support during US evening hours.
Top Skills: ConfluenceDeephavenFix MessagingGitGradleJavaJenkinsJIRAJunitLinuxTcp/IpUdpWireshark
Reposted 8 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Software
The Senior Software Engineer will develop high-quality software solutions, mentor junior engineers, and resolve production issues while collaborating with cross-functional teams.
Top Skills: Api GatewayAWSAws CdkAws KinesisAws LambdaAzureCi/CdCloudFormationDynamoDBElasticsearchEventbridgeGCPGitGithub ActionsJavaJavaScriptKafkaMongoDBOpensearchS3ScalaStep FunctionsSubversionTerraformTypescript
Reposted 22 Days AgoSaved
Easy Apply
In-Office or Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
Canonical seeks open-source enthusiasts to optimize Ubuntu for new silicon technologies, collaborating with teams and customers to enhance software quality and performance across various platforms.
Top Skills: CC++DockerKubernetesLinux Distribution PackagingOciPerformance OptimizationPythonSecurity Best Practices
Reposted 4 Hours AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
HR Tech • Information Technology
The Lead Software Engineer will provide technical design, maintain the technical roadmap, document architectures, code, conduct reviews, mentor engineers, and support recruitment efforts.
Top Skills: Api DesignAWSElasticsearchGraphQLGrpcJavaKafkaMqNoSQLOpenapiPythonRedisRestSQLSwagger
Reposted 4 Hours AgoSaved
Belfast, Northern Ireland
Senior level
Senior level
Software • Biotech
As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.
Top Skills: AWSFastapiGitLinearNext.JsNotionPostgresPythonSlackTailwindcssTerraformTypescript
Reposted 4 Hours AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Cloud • Security • Software • Generative AI
The Principal Software Engineer I will focus on improving distributed systems for Elasticsearch, managing cluster coordination, and addressing performance issues.
Top Skills: ElasticsearchJavaNetty
Reposted 4 Hours AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Cloud • Security • Software • Generative AI
The role focuses on enhancing Elasticsearch's distributed systems for performance, resilience, and managing data indexing across multiple nodes while diagnosing challenges and collaborating across teams.
Top Skills: ElasticsearchJavaNetty
Reposted 4 Hours AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.
Top Skills: Go (Golang)JujuLdapOauthOpenidPython
Reposted 4 Hours AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Natural Language Processing • Software • Conversational AI • Generative AI
The Senior Software Engineer will build reliable APIs, deploy speech models, and contribute to software development, targeting voice interactions and multi-tenant infrastructure.
Top Skills: LlmsPythonRestful ApisSpeech-To-TextText-To-SpeechVoipWebrtc
Reposted 4 Hours AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Internet of Things
As a Staff Software Engineer, you'll enhance the Add-on Operations team by developing features, ensuring reliability, and mentoring junior engineers in an open-source environment.
Top Skills: DjangoGCPMySQLPythonReactTypescript
Reposted 23 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Energy
We are looking for a Senior Fullstack Software Engineer to join our team, working on building and optimizing systems for electric car leasing.
Top Skills: AWSGraphQLNext.JsNoSQLPostgresPythonReactTypescript
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Reposted 23 Days AgoSaved
Remote
Belfast, Northern Ireland
Mid level
Mid level
Food
Build backend features for restaurant partners, identify technical opportunities, own projects, collaborate with a team, and ensure service quality and performance.
Top Skills: Cloud ServicesFlaskGoPythonRuby
Reposted 23 Days AgoSaved
Easy Apply
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
The Lead Golang Software Engineer develops server solutions, leads technical designs and code reviews, mentors colleagues, and ensures the quality of engineering practices in the Commercial Systems unit.
Top Skills: AICloudData ScienceGoIotPerformance EngineeringSecuritySoftware EngineeringUbuntu
Reposted 23 Days AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
The Python Software Engineer will develop and maintain test automation tools for hardware certification and improve Linux testing methods.
Top Skills: CCheckboxLinuxPythonUbuntu
Reposted 23 Days AgoSaved
Easy Apply
In-Office or Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
You will build and maintain container images, automate CI/CD processes, engage with the community, and mentor junior team members in a collaborative environment.
Top Skills: Concourse CiDockerGithub ActionsGoJenkinsKubernetesPython
Reposted 23 Days AgoSaved
Easy Apply
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Cloud • Software
Lead Python Software Engineer responsible for developing solutions, collaborating on designs, mentoring team members, and enhancing engineering practices.
Top Skills: AirbytePythonRangerTemporalTrino
Reposted 23 Days AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Cloud • Software
Develop and enhance dqlite, a distributed SQLite database, including debugging, implementing features, and engaging with the open source community.
Top Skills: CGoRaft
Reposted 10 Days AgoSaved
In-Office or Remote
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Real Estate • Software
As a Senior Software Engineer, you'll design, build, and scale the core systems and APIs of The Flex platform, focusing on automation, reliability, and performance.
Top Skills: AWSFastapiNode.jsPythonReact
Reposted 10 Days AgoSaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
eCommerce • Fintech • Payments
Lead design and implementation of C++ software for secure embedded payment terminals, handling EMV/contactless/mobile transactions, cryptography and POS integrations. Drive full SDLC delivery, mentor engineers, improve CI/CD and tooling, troubleshoot embedded stacks, and collaborate with product and test teams to deliver production-grade solutions.
Top Skills: AndroidAndroid StudioC++ClionCryptographic ApisEmbedded SystemsEmvGitJenkinsJetpack ComposeKotlinMobile WalletNfcP2PePci DssPos IntegrationPythonRhelSecure Channel ProtocolsSmart-CardSQLVisual StudioWindows
Reposted 10 Days AgoSaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
eCommerce • Fintech • Payments
As a Staff Software Engineer, you will lead software development for payment solutions, enhance code quality, and ensure compliance standards.
Top Skills: .NetBambooBddC#Ci/CdCSSGitlabHTMLJenkinsSpecflowSQL ServerUnit Tests
Reposted YesterdaySaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Software
As a Senior Backend Engineer at HubSpot, you'll design and build impactful features, collaborate across teams, and enhance user satisfaction while empowering SMBs with our technology.
Top Skills: AWSDropwizardJavaKafkaKubernetesMySQL
Reposted YesterdaySaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Cloud • Security • Software
Lead the architecture and implementation of the Libraries Platform, ensuring secure, reliable automation and service delivery for open-source libraries. Design shared services, build pipelines, and improve developer tools while promoting reliability and observability.
Top Skills: ArgoAWSAzureDockerGCPGithub ActionsGoKubernetesTektonTerraform
Reposted YesterdaySaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Digital Media
Join Reedsy to develop and improve a collaborative word processor, adding features and ensuring performance and security for users.
Top Skills: CSSGithub ActionsHTMLLessMongoDBNode.jsNoSQLRedisSassTypescriptVuejsWebpack
Reposted 24 Days AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Mid level
Mid level
Database • Analytics
Analyze and optimize ClickHouse database performance, develop performance tests, support engineering teams, collaborate with core teams, and engage with the open-source community.
Top Skills: C++Database InternalsUnix Systems
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