Linux Operations Engineer

In the role as Linux Operations Engineer in Digital, Data &IT, R&D Solutions, you will contribute to our purpose of Bringing People Closer. You will own and operate GN’s Linux infrastructure and high-performance simulation cluster, as well as on-premises Kubernetes environments. You will ensure reliability, performance, and security of the environment, administer SLURM scheduling, automate with Ansible, and provide responsive support to R&D and engineering teams running compute-intensive simulations. This role blends daily operations, incident/problem management, and continuous improvement through automation and observability. 

The team you will be part of 

You will be part of Engagement & Tech Services where we collaborate closely with R&D and engineering teams and external vendors/consultants. We value a customer-centric mindset, clear communication with technical and non-technical stakeholders, ownership, accountability, bias for action, and continuous improvement. We promote a team culture that values inclusivity, respect, and a collaborative approach to problem-solving and operational practices.

Your contribution is appreciated, and you will:

• Operate and support the Linux server estate, Kubernetes environments, and the HPC simulation cluster to maintain high availability and performance. This includes servers supporting development, build pipelines, git, database (PostgreSQL), and general lab environments. 

• Administer SLURM clusters: partitions, QoS, job policies, fair-share, accounting (sacct, slurmdbd), reservations, and user quotas. 

• Administer Kubernetes clusters: configure RBAC and set up GitOps automation (ArgoCD/Helm). 

• Manage Kubernetes clusters to ensure optimal performance, scalability, and security in production. 

• Provision and maintain compute nodes (kickstart), Kubernetes clusters, and SLURM clusters. 

• Oversee patching and vulnerability management for Linux and Kubernetes environments, ensuring compliance and timely remediation

• Monitor and tune performance (CPU, memory, I/O, network, job throughput) and lead capacity planning across Linux and Kubernetes. 

• Integrate Linux hosts with identity services (LDAP/AD/Entra) and manage access controls (sudo policies, SSH keys). 

• Maintain observability stacks (Prometheus/Grafana/ELK/OpenSearch), creating actionable alerts and dashboards. 

• Own incident, problem, and change management processes (ITIL), including root cause analysis and post-incident reviews. 

• Document standards, runbooks, architecture, and procedures; keep knowledge current and accessible. 

• Coordinate vendor engagements and license services for simulation tools and infrastructure components. 

• Participate in an on-call rotation for critical Linux/HPC and Kubernetes services. 

To perform well in the role, we imagine that you:

• Bring an extensive background in Linux systems administration/operations and Kubernetes management across a diverse server fleet

• Have experience with HPC clusters and Kubernetes environments (e.g. SLURM). 

• Are skilled in Ansible for configuration management and automation (roles, playbooks, CI for lint/test preferred). 

• Are proficient in scripting (Bash/Python) to automate routine tasks and diagnostics. 

• Understand networking fundamentals (TCP/IP, DNS, DHCP, routing, firewalls) in Linux/Kubernetes contexts. 

• Have practical experience with monitoring and logging in production (Prometheus/Grafana, ELK/OpenSearch or equivalent)

• Demonstrate troubleshooting across OS, scheduler, storage, applications, and Kubernetes environments. 

• Are familiar with ITSM practices (incident/problem/change), and value disciplined documentation and runbooks. 

• Have professional working proficiency in English.

It is beneficial to have experience with: 

• Kubernetes certification or equivalent practical experience. 

• CI/CD for infrastructure (GitLab CI/GitHub Actions), GitOps practices; Infrastructure as Code with Ansible. 

• Containerization (Docker, Kubernetes) supporting simulation workflows. 

• Source control systems like GitHub or GitLab. 

• License server administration for engineering/simulation tools and Kubernetes services; vendor management. 

• Security frameworks and hardening (CIS benchmarks), vulnerability scanning and remediation. 

• A Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience. 

• Tools & Technologies: SLURM, Ansible, Bash/Python, Kubernetes, Git/GitLab/GitHub, Prometheus/Grafana or ELK/OpenSearch, PXE/Kickstart, LDAP/Active Directory/Entra, Docker, PostgreSQL, Linux, MUNGE. 

At GN we pride ourselves on encouraging flexible working whenever possible. We trust our people to carry out their tasks, to know when in-person collaboration is better than hybrid, and to be present when it's needed most.

We encourage you to apply

Even if you don’t match all the above-mentioned skills, we welcome your application if you think you have transferrable skills. We highly value a mindset and motivation that align with our core values, to not only ensure growth for you, but for your team and the wider GN organization as well.

We are focused on an inclusive recruitment process

All applicants will receive equal consideration for employment. As such, we encourage you to submit your CV without a photo to ensure an equal and fair application process.

Should you have any special requirements for the interview, please let the Hiring Manager know upon accepting invitation to interview.

How to apply?

Use the ‘APPLY’ link. Applications are assessed on a continuous basis, so don’t wait to send yours. 

On a time crunch? Feel free to only submit your up-to-date CV including a few sentences outlining your motivation for applying – quick and easy. 

Join us in bringing people closer

GN brings people closer through our advanced intelligent hearing, audio, video, and gaming solutions. Inspired by people and motivated by innovation, we deliver technology that enhance the senses of hearing and sight. We enable people with hearing loss overcome real-life problems, improve communication and collaboration for businesses and provide great experiences for audio and gaming enthusiasts.

We hope you will join us on this journey and look forward to receiving your application.

#LI-GNGroup