Top DevOps Engineer Jobs in Belfast

Design, scale, and maintain Upwind’s cloud infrastructure, CI/CD pipelines, and production systems. The role involves architectural design, cloud technology and open-source tool evaluation, infrastructure automation, Kubernetes and database operations, production monitoring, and ensuring reliable, scalable delivery of product features.

Design, build, and operate resilient, secure GCP-based infrastructure for customer-facing SaaS. Own networking, CI/CD/GitOps, Kubernetes deployments, monitoring, autoscaling, incident response, and compliance. Collaborate cross-functionally, use AI/LLM tools to automate runbooks and diagnostics, and ensure high availability and performance.

Leads a DevOps team responsible for the reliability, security, and operational efficiency of cloud and on-premise platforms. Owns Kubernetes infrastructure, GitHub-based CI/CD, GitOps, infrastructure as code, observability, incident response, disaster recovery, and security hardening. Provides technical mentorship, leads production deployments, manages platform tooling, develops runbooks, and collaborates with Engineering, SRE, Security, and Operations on platform improvements.

Design and evolve high-scale backend capabilities for GitLab’s container registry. Drive architecture, performance, reliability, security, APIs, testing, and operational readiness. Mentor engineers, influence technical direction, participate in incident response, and collaborate asynchronously across product, infrastructure, data, frontend, and security teams. Integrate and evaluate agentic AI systems in production engineering workflows while promoting responsible and effective use.

Design, implement, and evolve complex backend capabilities for GitLab’s global DevSecOps platform. Drive architecture and technical direction, improve quality, security, availability, performance, and operational readiness, and participate in incident response. Mentor engineers, lead through technical influence, collaborate asynchronously across product and infrastructure teams, and integrate reliable agentic AI systems into production engineering workflows.

Build and operate Namespace’s high-performance infrastructure platform supporting customer builds, tests, and CI jobs. Responsibilities include optimizing compute, memory, storage, and networking; automating provisioning, deployment, scaling, and recovery; developing observability and incident response processes; planning capacity; improving cost efficiency; and collaborating with product engineers to deliver reliable platform capabilities.

Leads the design, automation, and optimization of AWS cloud and on-premise environments. Owns infrastructure as code, CI/CD pipelines, observability, containerized and serverless platforms, environment automation, monitoring, and production resilience. The role collaborates with engineering, QA, architecture, and operations teams to modernize delivery practices, implement cloud security standards, and support reliable agile software delivery.

Leads technical direction for GitLab’s Core DevOps services, covering CI, CD, planning, and source control. Defines architecture, quality metrics, migration strategies, and technical roadmaps; addresses systemic risk and complex design decisions; prototypes and writes code when needed; partners with Infrastructure, Security, SRE, and Product; adopts AI capabilities; mentors senior engineers; supports incident response and senior technical hiring.

Supports multi-cloud infrastructure for software, fonts, and training tools serving minority language communities. Responsibilities include administering Kubernetes, managing public and private cloud environments, monitoring system health, improving infrastructure, testing disaster recovery plans, orchestrating cloud resources, and troubleshooting with development teams. The role also provides training and requires experience with virtual servers, containers, Linux and Windows administration, scripting, cloud networking and security, infrastructure as code, and automated provisioning.

Improve the resilience, performance, scalability, and maturity of Arbor’s platform infrastructure. Responsibilities include enhancing high availability, testing, disaster recovery, CI/CD pipelines, deployment patterns, incident response, post-mortems, documentation, and knowledge sharing. The role works closely with platform, SRE, architecture, and engineering teams while operating large-scale AWS cloud systems and infrastructure as code.

Build, maintain, and operate Linux-based infrastructure at scale. Collaborate with development and DevOps teams to deploy applications, develop automation tooling, manage CI/CD pipelines, support in-house and third-party systems, troubleshoot production issues, monitor services with Grafana and Prometheus, document processes, and participate in on-call incident response.

Architect, build, and own AWS infrastructure supporting highly available SaaS products. Drive cloud migrations, automation, scalability, security, observability, and reliability improvements while partnering with developers and cross-functional teams. Participate in weekly on-call rotations, lead root cause analysis, and eliminate recurring operational issues. The role requires hands-on experience with AWS, infrastructure as code, CI/CD, configuration management, monitoring, GitOps, and multiple programming and scripting languages.

Design, build, and operate secure, resilient AWS infrastructure and multi-tenant platforms. Own Terraform infrastructure-as-code, CI/CD pipelines, Kubernetes environments, networking, IAM, observability, reliability, and security controls. Lead infrastructure initiatives end to end, collaborate closely with Engineering, support incident response and SRE practices, and contribute to architecture decisions. The role also supports Microsoft 365, zero-trust networking, SOC 2, and Cyber Essentials Plus compliance activities.

Architect and maintain GitHub-based CI/CD pipelines, test-driven deployments, Docker containerization, and automated release workflows. Manage JavaScript, TypeScript, and C++ package lifecycles; build cross-platform applications with CMake; and automate web, desktop, and mobile releases. Provision secure, scalable infrastructure using IaC tools while supporting Linux administration, networking, monitoring, troubleshooting, and release reliability across distributed teams.

Design, deploy, operate, and continuously improve Kubernetes-based AI infrastructure. Responsibilities include managing Linux systems, bare-metal servers, data-centre infrastructure, NVIDIA GPU workloads, infrastructure automation, security access, platform governance, troubleshooting, documentation, customer and vendor collaboration, and on-call operational support.

Own and scale AWS infrastructure for a global SaaS platform, focusing on reliability, performance, security, and availability. Build CI/CD pipelines and infrastructure-as-code with Terraform, Terragrunt, and Chef; operate observability tooling; support migrations; drive SOC 2 practices; and partner with engineering teams on architecture. Respond to on-call incidents, lead root cause analyses, implement durable fixes, and evaluate AI tools that improve DevOps and SRE workflows.

Design, implement, and maintain AWS cloud infrastructure, deployment architectures, CI/CD pipelines, high-availability systems, monitoring frameworks, and Kubernetes-based applications. Automate infrastructure with Terraform or CloudFormation, apply security best practices, optimize performance and scalability, and collaborate with development teams and clients to improve deployment workflows and deliver projects effectively.

The DevOps Engineer designs and manages AWS cloud infrastructure, automates operations, develops CI/CD pipelines, and ensures robust monitoring and observability.

Collaborate with development teams to deploy and maintain applications on GCP using Kubernetes, Docker, Helm, ArgoCD and Terraform. Build automation pipelines, support deployments/upgrades/troubleshooting, manage infrastructure as code, document processes, and participate in on-call rotation.

Technical lead and architect for infrastructure, automation, and deployments. Own IaC, CI/CD, release engineering, observability, and production reliability across Windows and Linux platforms. Design Windows HA/clustering, build Terraform/Ansible standards, manage Octopus/GitHub deployments, set monitoring/alerting with VictoriaMetrics/Prometheus, lead incident response, mentor engineers, and maintain runbooks and platform roadmaps.

As a Lead DevOps Engineer, you will build and deploy cloud-based infrastructure, automate deployments, and lead a team in delivering secure environments for data analytics using various technologies.

Lead the development and implementation of secure cloud environments for National Security and Defence clients by leveraging commercial and open-source technologies.

The Senior DevOps Engineer will manage AWS infrastructure, optimize services, improve CI/CD pipelines, and enhance system observability while ensuring compliance with necessary standards.

The Staff DevOps Engineer will enhance and manage infrastructure for AI inference, focusing on speed, resilience, and automation across GPU fleets and production systems.

Maintain and automate cloud infrastructure and CI/CD for a globally available WebRTC video conferencing service. Build IaC with Ansible and Terraform, manage AWS resources, deploy to Linux, Windows and Kubernetes, troubleshoot test environments, lead incident response and root cause analysis, and automate repetitive tasks to support development and production delivery.