Senior Site Reliability Engineer / Kubernetes

Jobgether; Ireland; Remote; EUR 90,000 - 130,000; Full time

Benefits offered by this job

100% remote within EU time zones

Flexible working hours

Ownership and impact in a fast-paced,技

International engineering environment

Job summary

Jobgether is partnering to fill a Senior Site Reliability Engineer role in Ireland. The position focuses on building and operating scalable cloud infrastructure, with ownership of production Kubernetes clusters across diverse environments.

You will design networking, implement automation, and drive reliability across a globally distributed team. The role emphasizes observability, incident response, and on-call readiness, with a remote-first culture and strong autonomy.

Qualifications

• Expert-level, hands-on experience operating Kubernetes in production environments.
• Strong network engineering expertise including VLANs, L2/L3 routing, VPNs, and multi-site connectivity.
• Advanced Linux systems administration experience with Debian/Ubuntu.
• Experience with infrastructure automation using Ansible, Bash and/or Python, Git/GitOps workflows.
• Observability/monitoring experience with Prometheus, Grafana, ELK, Loki, or Graylog.
• Experience with virtualization technologies such as OpenStack, Proxmox, VMware.

Responsibilities

• Operate, maintain, and improve Linux-based infrastructure across Debian/Ubuntu.
• Deploy, manage, and scale production Kubernetes clusters across diverse environments.
• Design and maintain complex networking architectures for reliability and performance.
• Develop automated workflows using Ansible, Bash, Python, Git, and GitOps.
• Build and operate observability platforms to provide actionable alerts.
• Lead incident response and establish reliable on-call practices across time zones.
• Define and implement SLOs/SLIs for infrastructure and services.
• Collaborate with cross-functional teams to improve software and infrastructure quality.

Skills

Kubernetes production

Linux administration

Automation scripting (Ansible/Bash/Py

Observability (Prometheus/Grafana)

Networking (L2/L3, VPN, multi-site)

Git/GitOps

OpenStack/Proxmox/VMware

English communication

Tools

OpenStack

Proxmox

VMware

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Site Reliability Engineer / Kubernetes based in Ireland.

This is a high-impact SRE role focused on building and operating reliable, scalable cloud infrastructure across complex environments.
You will take ownership of production Kubernetes platforms spanning bare-metal, virtualized, and on-premise infrastructure.
The role combines deep systems and networking expertise with automation, observability, incident response, and reliability engineering.
You will help shape infrastructure architecture, improve availability and performance, and establish operational standards that scale with growth.
Working closely with engineering and cross-functional teams, you will turn operational challenges into robust, repeatable solutions.
The environment is highly technical, international, remote-first, and designed for engineers who value autonomy and ownership.
If you enjoy solving complex infrastructure problems and building dependable platforms from the ground up, this role offers significant scope and impact.

Accountabilities

• Operate, maintain, and continuously improve Linux-based infrastructure, primarily across Debian and Ubuntu environments, ensuring systems remain secure, stable, and performant.
• Deploy, manage, and scale production Kubernetes clusters across bare-metal, virtualized, and on-premise environments, taking ownership of the full cluster lifecycle including upgrades, node pools, networking, storage, and security hardening.
• Design and maintain complex networking architectures covering VLANs, L2/L3 routing, VPNs, and multi-site connectivity, with a strong focus on reliability and performance.
• Build and maintain automated infrastructure provisioning and operational workflows using Ansible, Bash, Python, Git, and GitOps practices, including PXE boot, Preseed, and cloud-init processes.
• Develop and operate comprehensive observability platforms using technologies such as Prometheus, Grafana, Loki, ELK, and Graylog, improving monitoring quality and ensuring alerts provide actionable operational insights.
• Lead incident response and escalation activities, investigate complex infrastructure issues, reduce recurring failures, and improve overall platform availability and latency.
• Define and implement SLOs and SLIs across physical infrastructure, networking, virtualization, and software services to establish measurable reliability standards.
• Establish and maintain effective on-call practices and schedules that provide reliable operational coverage across multiple time zones.
• Create Standard Operating Procedures and repeatable operational processes for infrastructure maintenance, troubleshooting, incident response, and routine platform activities.
• Coordinate physical infrastructure maintenance, including hardware issues, periodic maintenance activities, and data-center operations.
• Manage virtualization and orchestration technologies including OpenStack, Proxmox, and VMware, while contributing to the broader architecture of the platform and its products.
• Plan infrastructure capacity and resources for future initiatives, taking projected demand, scalability, and growth into account.
• Partner with development and cross-functional teams to improve software and infrastructure quality, optimize resource utilization, and strengthen operational practices across the wider organization.

Requirements

• Expert-level, hands-on experience operating Kubernetes in production environments, with a strong understanding of cluster architecture, lifecycle management, networking, storage, and security.
• Strong network engineering expertise is essential, including VLANs, L2/L3 routing, VPNs, multi-site connectivity, and the ability to design and operate complex network architectures.
• Advanced Linux systems administration experience, particularly with Debian and Ubuntu environments.
• Strong understanding of networking fundamentals, distributed systems, container orchestration, and modern infrastructure architecture.
• Proven experience building and maintaining infrastructure automation using Ansible, Bash and/or Python, Git-based workflows, and GitOps practices.
• Practical experience with observability and monitoring platforms such as Prometheus, Grafana, ELK, Loki, or Graylog.
• Experience with virtualization technologies including OpenStack, Proxmox, and/or VMware.
• Experience with bare-metal provisioning and technologies such as MAAS, PXE, Preseed, and cloud-init.
• Experience managing incidents, escalation processes, on-call rotations, and operational reliability in production environments.
• A process-oriented mindset with the ability to create SOPs and operational procedures from the ground up.
• Strong problem-solving and analytical skills, combined with the ability to work independently in a fast-paced, engineering-driven environment.
• Excellent communication and collaboration skills, with the ability to work effectively with distributed, cross-functional teams.
• Fluent English is mandatory, with the ability to communicate complex technical topics clearly.
• Experience with service mesh technologies such as Istio or Linkerd, or advanced CNI implementations, is a plus.
• Knowledge of Cloudflare APIs, DNS automation, or tunnel configuration is advantageous.
• Experience with GPU infrastructure, node preparation, resource scheduling, security practices such as RBAC, firewalls and network policies, or IT asset management is beneficial.
• Experience working across multiple time zones or establishing SRE and reliability frameworks within growing organizations is a strong advantage.

Benefits

• 100% remote work within the EU time zone, with a preferred working range of CET ±2 hours.
• Flexible working hours designed to support autonomy and effective collaboration across distributed teams.
• High-impact position with significant ownership, responsibility, and freedom to shape infrastructure and reliability practices.
• Opportunity to work with advanced Kubernetes, cloud infrastructure, networking, virtualization, automation, and observability technologies.
• Collaborative and international engineering environment with strong technical expertise and cross-functional exposure.
• Opportunity to influence architecture, operational standards, automation strategies, and long-term platform scalability.
• Fast-paced environment focused on reliability, engineering excellence, innovation, and continuous improvement.
• Opportunity to contribute to ambitious infrastructure projects while developing deeper expertise across modern cloud and SRE technologies.

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