Top Linux Jobs in Dublin

Partner with sales to qualify and close opportunities by delivering technical presentations, demos, and proof-of-concepts. Provide technical expertise during pre-sales, assist onboarding and troubleshooting, gather customer feedback for product, and collaborate across teams to resolve issues. Support customers and partners while traveling up to 25% and communicating fluently in Spanish and English.

Provide deep technical support to customers and partners for MongoDB deployments: troubleshoot architecture, performance, recovery, and security; advise on best practices; collaborate with product and engineering teams; contribute to tooling and diagnostics; mentor new engineers and work closely with ISV partners to ensure joint customer success.

Monitor product and infrastructure health, investigate alerts using Grafana and Zabbix, perform first-level Linux and Windows troubleshooting, follow runbooks, resolve or escalate incidents, and support senior administrators during major incidents. The role includes rotating day and night shifts, independent duty coverage after onboarding, and collaboration with a distributed team.

Provides Tier 3 technical support for Arista networking products and protocols. Troubleshoots hardware, software, installation, compatibility, and operational issues; recreates problems in a lab; recommends corrective actions; and documents recurring issues. The role communicates directly with customers and collaborates with software and hardware engineering teams to diagnose and resolve complex networking problems while supporting product quality and development.

Leads the design, development, and maintenance of high-performance network traffic solutions. Optimizes caching and Points of Presence, develops applications in C/C++ and Go, manages Kubernetes-based systems, and strengthens network security and observability. Collaborates across teams, mentors engineers, and contributes to open-source projects and patented innovations.

Design, build, and maintain Chromium-based browser components in C++ across multiple layers. Harden browser isolation and network infrastructure using networking and HTTP security expertise. Build AI agent and MCP integrations, develop supporting tools in Python or Rust, and deploy cloud infrastructure with AWS, GCP, Kubernetes, and Terraform. Optimize high-scale systems and collaborate with product, security, and AI teams.

Lead Infrastructure Engineer designs, implements, and modernizes infrastructure for performance, resiliency, and security. Responsibilities include cloud and on-prem migrations, Kubernetes and cloud-native app administration, data streaming (Kafka/Event Grid/Service Bus), scripting and CI/CD automation, AI-assisted infrastructure analysis, and cross-functional collaboration to deliver traceable, auditable infrastructure changes.

Build, operate, and improve secure, scalable AWS infrastructure for the ELN Platform. Responsibilities include infrastructure-as-code, automation, observability, monitoring, incident response, cloud security, reliability improvements, troubleshooting, peer code reviews, and collaboration with engineering, security, and DevOps teams.

Build and maintain production systems, engineering tools, CI/CD and release automation, testing infrastructure, and foundational engineering platforms. Investigate scalability bottlenecks and production incidents, automate system administration and integrations, and collaborate with QA and development teams. Provide mentorship, share knowledge, capture requirements, and improve engineering processes across the company.

Develop and optimize GPU clusters and InfiniBand networks for hyperscale HPC environments. Responsibilities include troubleshooting hardware and infrastructure issues, integrating new GPUs through Kubernetes, QEMU, and KVM, managing GPU devices and InfiniBand fabrics, tuning performance, and improving automated monitoring and fault resolution.

Design, build, and operate traffic management and routing systems for eBay’s large-scale commerce platforms. Develop high-performance services using Java, C++, or Go; deploy and troubleshoot Kubernetes workloads; improve security, latency, throughput, and reliability; and use observability tools for production diagnosis. Collaborate with SRE, platform, and application teams on distributed systems and networking solutions.

Operate and evolve GIPHY’s cloud, CDN, Kubernetes, and CI/CD infrastructure at internet scale. Improve reliability, scalability, deployment safety, developer experience, and cost efficiency. Design multi-region Kubernetes environments, troubleshoot complex production incidents across infrastructure layers, and apply observability, automation, infrastructure as code, and AI-assisted engineering practices. Partner with development teams to resolve issues and drive upgrades, patching, optimization, and technical debt reduction.

Leads complex enterprise cyber investigations and incident response from detection through recovery. Conducts host, network, cloud, identity, and SaaS investigations; performs threat hunting and compromise assessments; develops containment and remediation strategies; briefs executives and boards; partners with legal, compliance, privacy, and audit teams; improves security capabilities through lessons learned and AI-assisted workflows; and participates in 24/7 on-call coverage.

Hands-on senior engineer building Kubernetes Operators, controllers, CRDs and automation in Go. Automate provisioning, upgrades, scaling, recovery, and configuration; improve reliability, observability, and security; contribute to CI/CD, GitOps, Helm, and infrastructure automation; integrate across cloud and on-prem Kubernetes environments; mentor engineers and establish engineering standards.

Architects and operates highly available Linux infrastructure and core IT services across on-premises and cloud environments. Develops infrastructure-as-code and automation with Terraform, Ansible, Git, Python, and shell scripting; implements secure configuration, patching, and deployment pipelines; administers enterprise storage arrays; and supports networking, virtualization, Kubernetes, compliance, and on-call operations. Acts as a technical subject matter expert, maintains documentation and runbooks, and mentors junior engineers.

The role involves developing and managing distributed storage systems, ensuring reliability, and optimizing infrastructure performance. Responsibilities include defining SLOs and participating in an on-call rotation.

Leads a remote engineering team building scalable Python and Golang microservices for Canonical’s software distribution marketplaces. Responsibilities include mentoring and developing engineers, managing delivery and expectations, shaping technical strategy and roadmaps, reviewing code, guiding architecture, maintaining engineering quality, and collaborating with product managers, architects, other teams, open-source contributors, and commercial partners.

Develop and maintain infrastructure for rapid software prototyping and deployment across cloud, private cloud, and bare-metal environments. Manage servers and Kubernetes clusters, configure GPU systems for large language models, optimize performance, build monitoring and alerting, and advise on localized data-center deployments. The role also requires software engineering, Linux administration, security awareness, automation, and collaboration across international teams.

Lead cybersecurity incident response engagements, investigate intrusions through host and network forensics, hunt threats across large datasets, and develop remediation plans. Conduct investigations under outside counsel, analyze Windows, macOS, and Linux environments, and communicate findings to executives, regulators, and legal stakeholders. Contribute industry thought leadership through publications and presentations while completing technical work independently and applying AI to improve workflows and decision-making.

Design, build, and operate core platform services to improve availability, scalability, latency, and cost efficiency. Develop platform primitives (infra, databases, queuing), enable developer experience, and implement tooling for observability, self-healing, configuration-as-code, and cost optimization.

Designs and governs enterprise-grade, secure, scalable technical solutions aligned with business needs and target architecture. Translates requirements into architecture artifacts, leads technology selection, guides development teams, reviews designs and code, manages technical risks, supports project planning, and oversees third-party deliverables. The role also refines technical architecture, ensures documentation and standards compliance, supports cloud-native and full-stack solutions, and provides technical leadership across public-facing and internal systems.

Senior security researcher responsible for large-scale data collection and analysis, operating and building honeypots, performing vulnerability research and reverse engineering, developing automated tooling and GenAI/LLM workflows, collaborating with intelligence teams, reproducing vulnerabilities, and publishing technical research.

Develop and maintain web-service features, design backend APIs and business logic, review code, and improve production infrastructure reliability, redundancy, and resilience. The role requires strong programming, database design, web-service API, AWS, Linux, Docker, Kubernetes, and continuous deployment experience, along with communication, analytical, and teamwork skills.

Provide expert, customer-facing technical support for MongoDB ecosystems (server, drivers, cloud, infrastructure). Diagnose and resolve architecture, performance, recovery, security, and scalability issues; build support tools; mentor new hires; liaise with product and engineering on customer needs.

Lead and mentor a data science team building ML and LLM solutions for cybersecurity. Translate business needs into research and production ML objectives, prioritize roadmaps, collaborate cross-functionally, and drive technical vision, model development, and operationalization for malware detection and threat analysis.