Top Tech Jobs & Startup Jobs in Belfast

4 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Design and develop scalable backend systems using Python and cloud platforms for high-volume email processing. The role involves distributed systems, Kafka and data infrastructure, sensitive data security, system maintenance, cross-functional collaboration, technical leadership, mentoring, and leading projects through production deployment.
Top Skills: Apache KafkaAWSAzureGCPPython 3
4 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Design, build, and operate high-performance backend services and distributed systems for a large-scale Threat Response SaaS platform. Responsibilities include developing scalable processing frameworks, supporting parallel execution and tenant isolation, optimizing PostgreSQL databases, improving system throughput, and maintaining production systems. The role also involves collaborating across teams and leveraging AI-assisted engineering tools for software development, testing, debugging, and operational support.
Top Skills: Amazon SqsAWSGoogle WorkspaceJavaKafkaMicrosoft 365Microsoft GraphPostgresPythonReactTypescript
5 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Build and operate secure, scalable cloud integration services and distributed data-processing systems. Own capabilities across design, implementation, testing, deployment, observability, production support, and continuous improvement. Lead technical decisions, improve CI/CD and infrastructure automation, define service-level objectives, participate in incident response, and mentor engineers. The role requires hands-on software engineering, cloud-native platforms, containers, databases, secure software delivery, and cross-functional collaboration.
Top Skills: AWSCi/CdContainersGoGrafanaInfluxdbInfrastructure As CodeKubernetesPrometheus
5 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Designs, builds, and operates scalable, secure cloud platforms for a global multi-tenant SaaS environment. Responsibilities include AWS networking and architecture, Kubernetes platforms, CI/CD, observability, reliability engineering, disaster recovery, and database operations. The role also contributes to automation, infrastructure scalability, regional failover, and secure production operations using Java or Python, Terraform, and relational databases.
Top Skills: AWSCi/CdCidrCloudbeesCloudwatchCoralogixEksElbFedrampHarnessIamIso 27001JavaKubernetesMskPostgresPythonRdsRoute 53Security GroupsSnsSoc 2SqsTerraformVpc
5 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Build and operate secure, scalable, highly available cloud services and distributed data-processing systems. Own capabilities through design, implementation, testing, deployment, observability, production support, and continuous improvement. Drive technical decisions, improve CI/CD and infrastructure automation, define service-level objectives, participate in incident response, and mentor engineers. Collaborate across engineering, product, security, infrastructure, and operations teams while balancing reliability, performance, security, cost, and maintainability.
Top Skills: AWSCi/CdContainersGoGrafanaInfluxdbInfrastructure As CodeKubernetesPrometheusRelational Databases
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5 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Designs and develops distributed systems and high-performance backend services for Proofpoint’s Threat Response product. Responsibilities include building scalable, multi-tenant SaaS platforms; processing high volumes of events and transactions; optimizing databases and system performance; supporting parallel execution and tenant isolation; and leveraging AI-assisted engineering tools for development, testing, debugging, and operations.
Top Skills: Amazon SqsAWSGoogle WorkspaceJavaKafkaMicrosoft 365Microsoft GraphPostgresPythonReactTypescript
14 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Entry level
Entry level
Security • Cybersecurity
Build and operate production services for Proofpoint’s Microsoft 365 Outlook add-in and Adaptive Email Data Loss Prevention platform. Improve scalability, reliability, security, and user experience; work with sensitive data; ship continuously through CI/CD; and use product and production data to guide development. The role requires production Python, AWS, database, container, infrastructure-as-code, and security experience, with JavaScript/React and large-scale infrastructure experience preferred.
Top Skills: AWSCi/CdCircleCIDockerDynamoDBEcrEcsGitGitJavaScriptLambdaMicrosoft 365NoSQLOutlookPostgresPythonReactSnsSQLSqsTerraform
26 Days AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Entry level
Entry level
Security • Cybersecurity
The International Accountant will support European and LATAM accounting activities, including month-end, quarter-end, and year-end close, journal entries, general ledger accounting, reconciliations, management reporting, variance analysis, procure-to-pay processes, subsidiary audits, SOX compliance, and process improvement projects. The role requires collaboration across teams and strong attention to detail, organization, and analytical skills.
Top Skills: Microsoft Dynamics 365ExcelUs Gaap
One Month AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Senior level
Senior level
Security • Cybersecurity
Manages an enterprise technical support team serving large customers during a 1pm–10pm shift. Responsibilities include hiring and developing support staff, overseeing ticket prioritization and resolution, managing escalations, coordinating with engineering and product teams, analyzing support metrics, improving processes, and maintaining reporting and tracking infrastructure to deliver exceptional customer service.
Top Skills: Cloud ServicesCRMCybersecurityData AnalyticsEmail ProtectionMetric Reporting PlatformsSaaS
One Month AgoSaved
In-Office
Belfast, County Antrim, Northern Ireland, GBR
Entry level
Entry level
Security • Cybersecurity
Monitors and maintains global servers and network devices in a 24x7 NOC environment. Manages incidents, troubleshoots Linux, networking, hardware, and operating system issues, and supports production availability and uptime. The role documents major incidents, improves runbooks and operational processes, coordinates with senior engineers, monitors production systems, and contributes to continuous service improvement using AI and monitoring tools.
Top Skills: Ai ToolingCloud ComputingLinuxNetwork Switching And RoutingProduction Monitoring Tools
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