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Top Software Engineer Jobs in Belfast

Reposted 4 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Mid level
Mid level
Fintech • Software • Financial Services
The Software Engineer II will design and optimize financial technology solutions, collaborate with cross-functional teams, and maintain robust code while ensuring compliance with industry standards.
Top Skills: BigQueryCloud FunctionsGoGoogle Cloud PlatformJavaPub/SubPythonSQL
Reposted 8 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Mid level
Mid level
Fintech • Software • Financial Services
As a Software Engineer II, you will design, build, and optimize billing services on the Apex Ascend platform using languages like Java and Python. Responsibilities include developing microservices, testing, debugging, and collaborating with teams to enhance billing applications.
Top Skills: BazelBigQueryFlywayGoGoogle Cloud PlatformJavaPostgresPub/SubPythonSQL
7 Days AgoSaved
Easy Apply
Remote
Belfast, Northern Ireland
Easy Apply
Junior
Junior
Big Data • Fintech • Mobile • Payments • Financial Services
As a Software Engineer II at Affirm, you will develop backend systems, collaborate with product teams, and support operations, ensuring timely project delivery while fostering team engagement and growth.
Top Skills: AWSKotlinKubernetesMySQLPython
Reposted 8 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Mid level
Mid level
Artificial Intelligence • Big Data • Enterprise Web • Fintech • Software • Financial Services
Develop and maintain high-volume exchange connectivity software, work within an agile team, write efficient code, and mentor team members.
Top Skills: C++
Reposted 10 Days AgoSaved
Remote
Belfast, Northern Ireland
Senior level
Senior level
Healthtech
The Senior Software Engineer will design and build backend services for health data, improve reliability, and deliver robust solutions to enhance patient care.
Top Skills: FastapiGoGoogle Cloud PlatformNext.JsPostgresPythonTemporal CloudTypescript
YesterdaySaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Software • Financial Services
The Sr Software Engineer will develop and operate compliance applications and services on a cloud platform, focusing on scalability and reliability while collaborating in a fast-paced environment.
Top Skills: Apache AirflowAWSAzureDockerGCPJavaKubernetesPostgresPythonSQLSQL Server
Reposted YesterdaySaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Software • Financial Services
Design and implement billing systems while optimizing performance and mentoring engineering teams. Collaborate with finance and compliance to translate business needs into technical solutions.
Top Skills: AnsibleAWSAzureBigQueryCi/CdDatadogDockerFlywayGCPGrpcJavaKubernetesPostgresProtobufPythonTerraform
Reposted 4 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
Senior engineer responsible for end-to-end delivery of scalable, reliable features. Design and implement Python-based services, work with Kubernetes and cloud platforms, contribute to architecture, champion testing/monitoring, and mentor junior engineers while partnering with product and UX teams to meet customer needs.
Top Skills: Cloud TechnologiesKubernetesPythonRelational Databases
Reposted 11 Hours AgoSaved
In-Office
Belfast, Northern Ireland
Mid level
Mid level
Industrial • Manufacturing
Develop and maintain the SystemOperations application suite and own platform infrastructure for OT/IT environments. Implement IAM, device credential workflows, MQTT optimization, containerized deployments, GraphQL/SQL services, and Angular components while ensuring security and IEC-62443 compliance.
Top Skills: AbacAngularCertificate AuthorityCi/CdDhcpDockerDocker ComposeGraphQLIamIec-62443K3SMdnsMqttNestjsNode.jsPkiPortainerRbacSQL
Reposted 11 Hours AgoSaved
In-Office
Belfast, Northern Ireland
Mid level
Mid level
Industrial • Manufacturing
Build and evolve device and service monitoring for OT systems: design data ingestion, time-series structures, dashboards, alerting, logging and audit trails aligned with IEC-62443; develop backend services with NestJS, contribute to Angular dashboards, integrate devices, improve data quality, and enable ML-ready analytics for anomaly detection and predictive insights.
Top Skills: AngularIec-62443KafkaMqttNestjsNode.jsSQLTime-Series Databases
Reposted 11 Hours AgoSaved
In-Office
Belfast, Northern Ireland
Mid level
Mid level
Industrial • Manufacturing
Develop and maintain SystemOperations applications (NestJS, Angular, GraphQL, SQL, MQTT). Own and improve CI/CD pipelines, release automation, tooling (GitHub, Atlassian, Nexus, SonarQube), environment administration, and observability while ensuring IEC-62443 security alignment and cross-functional collaboration.
Top Skills: AngularAtlassian JiraAutomated Testing FrameworksBitbucketConfluenceDhcpDockerDockerGitGithub ActionsGitlab CiGraphQLIec-62443-3-3Iec-62443-4-1JenkinsMdnsMessage BrokersMqttNestjsNexusSonarqubeSQL
Reposted YesterdaySaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Financial Services
The Senior Programmer Analyst will lead development using modern software engineering and DevOps practices, requiring extensive Java and Go expertise, along with fostering collaborative developer culture.
Top Skills: DockerGoGradleJavaLinux/UnixMavenMicroservices ArchitectureOpenshiftRestful ApisSpring BootSpring Data JpaSpring FrameworkSpring MvcSpring SecuritySQL
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Reposted 2 Days AgoSaved
In-Office
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Financial Services
Citi seeks a Senior Software Engineer (Java) to design and develop complex, high-performance systems for fixed income trade processing, utilizing Java and Spring technologies.
Top Skills: DockerGradleJavaLinuxMavenOpenshiftRestful ApisSpring BootSpring FrameworkSQL
Reposted 2 Days AgoSaved
In-Office
Belfast, Northern Ireland
Internship
Internship
Fintech • Information Technology • Payments
As a Software Engineer Intern, you'll develop innovative solutions, gain exposure to the software development lifecycle, and collaborate in an Agile environment at Visa.
Top Skills: C#C++Java
Reposted 8 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Software • Financial Services
Seeking a Senior Software Engineer for designing, developing, and maintaining software solutions; focusing on billing platforms and collaboration across teams.
Top Skills: AWSAzureBazelBigQueryCi/CdDatadogFlywayGCPGrpcJavaJooqPostgresProtobufPubsubPython
Reposted 3 Days AgoSaved
In-Office
Belfast, Northern Ireland
Mid level
Mid level
Financial Services
Develop, test and maintain modern responsive web applications for client onboarding. Collaborate with stakeholders, QA and ops to automate workflows, ensure regulatory compliance, design scalable API-driven platforms, and support production systems with DevOps and cloud practices.
Top Skills: .NetAngularAWSBddC#Ci/CdDevOpsDockerGraphQLJavaScriptNode.jsNoSQLRdbmsReactTddTerraformTypescriptVue
Reposted 3 Days AgoSaved
In-Office
Belfast, Northern Ireland
Entry level
Entry level
eCommerce • Fintech • Payments
Design and develop secure payment gateway software using object-oriented languages (primarily C#). Implement secure end-to-end transactions, integrate with partners via SOAP/JSON, apply cryptographic techniques and hardware security modules, participate in full SDLC, troubleshoot defects, and improve technical methodologies within a collaborative team.
Top Skills: C#CryptographyDigital SignaturesHardware Security Modules (Hsm)HTMLJavaJSONObject-Oriented ProgrammingSoapXML
Reposted 11 Hours AgoSaved
Easy Apply
Remote or Hybrid
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
The Senior Software Engineer will develop systems for compliance in driving operations, work with diverse technologies, and mentor junior team members.
Top Skills: GoGraphQLJavaJavaScriptPythonReactReact NativeTypescript
Reposted YesterdaySaved
Easy Apply
Remote or Hybrid
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
Lead the architecture of the developer ecosystem at Samsara, focusing on large-scale data streaming systems, serverless computing, and API management. Drive technical vision and mentorship for engineering teams, ensuring consistency and scalability in solutions related to transport, construction, and utilities.
Top Skills: AIData LakesKafkaServerless Computing
Reposted 12 Days AgoSaved
Remote or Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
Lead architectural development across core products, focusing on operational excellence and innovation while driving collaboration and growth within teams.
Top Skills: AWSGoJavaPython
Reposted 3 Days AgoSaved
Easy Apply
Remote or Hybrid
Belfast, Northern Ireland
Easy Apply
Senior level
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
Samsara is seeking a Senior Software Engineer to lead the design and development of vehicle telematics solutions, focusing on technical design, data modeling, and full-stack customer solutions involving ML and AI.
Top Skills: AIGoGraphQLJavaMlPythonReactReactnativeTypescript
Reposted 7 Days AgoSaved
Remote
Belfast, Northern Ireland
Junior
Junior
Information Technology • Consulting
The Software Developer will collaborate on new software applications using JavaScript and AgilePoint, providing support, documentation, and managing enhancements.
Top Skills: AgilepointJavaScript
Reposted 13 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Software • Financial Services
The Senior Software Engineer will design, develop, and maintain software solutions, focusing on customer identity verification and data analysis while collaborating with cross-functional teams to deliver robust products.
Top Skills: AWSAzureCi/CdGCPJavaSQL
Reposted 8 Days AgoSaved
In-Office
Belfast, Northern Ireland
Mid level
Mid level
Information Technology • Software • Energy • Renewable Energy
The Test System Software Engineer will develop and maintain automated test systems, troubleshoot test failures, and improve production processes while collaborating with multiple engineering teams.
Top Skills: GrafanaPythonSQL
Reposted 14 Days AgoSaved
Hybrid
Belfast, Northern Ireland
Senior level
Senior level
Fintech • Software • Financial Services
The Senior Software Engineer will develop backend systems and Market Data APIs, focusing on high-performance solutions in a fast-paced environment, utilizing cloud-native technologies.
Top Skills: AlloydbApache AirflowBigQueryDockerGoogle Cloud PlatformGoogle Pub/SubJavaKafkaKubernetesRabbitMQRedis
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