Junior DevOps Engineer (100%)

Xelon AG seeks a Junior DevOps Engineer in Zug to support infrastructure reliability and deployment automation. The role offers structured mentorship and a clear path to a full DevOps position within a product-driven team.

This position focuses on maintaining reliable, scalable, and secure infrastructure while assisting with deployment processes. The role operates within a product-driven environment, placing the engineer close to the technology and the team responsible for building it, with ample opportunity for learning and growth under guidance.

Responsibilities

• Maintain and enhance system stability through patching, updates, backups, and certificate management.
• Assist in deploying new services and migrating to improved solutions.
• Support troubleshooting efforts and conduct root-cause analysis across the platform.
• Help build and maintain automated deployment pipelines using tools like Bitbucket Pipelines and ArgoCD.
• Assist with rollbacks, deployment health checks, and release coordination.
• Develop and maintain Infrastructure-as-Code components such as Kubernetes, Ansible, and Terraform.
• Ensure configuration consistency across development, staging, and production environments.
• Maintain and improve observability tooling including CheckMK, Loki, Grafana, Tempo, Prometheus, and Sentry.
• Contribute to dashboards and alerting to increase signal and reduce noise.
• Support automated security checks in CI/CD pipelines, including SAST, DAST, and SCA.
• Help ensure deployments meet compliance and security requirements, including TLS/SSL, firewalls, and network policies.
• Write and maintain clear, easy-to-follow technical documentation.

Requirements

• Completed IT apprenticeship (e.g., Informatiker/in EFZ) or comparable education, or first professional experience in IT operations/infrastructure.
• Solid Linux/Unix fundamentals: shell, processes, file systems, permissions, and remote access (SSH/RDP).
• Basic networking knowledge: IP, DHCP, DNS, gateways, firewalling.
• First experience with scripting (Bash, with exposure to Python, PowerShell, or Golang).
• Basic understanding of containers (container vs. VM, Docker basics).
• A genuine motivation to learn new technologies where the knowledge is not yet there.
• Fluent German and good English, written and spoken.

Nice to have

• First exposure to CI/CD and IaC tooling (Bitbucket Pipelines, ArgoCD, Terraform, Ansible)
• Familiarity with monitoring and security tooling (Prometheus, Grafana, LGTM; SAST/DAST/SCA)
• First contact with Kubernetes, load balancing (Nginx, Apache, HAProxy, Traefik, Keepalived), or OpenStack / GitOps
• Relevant certifications (e.g. CKA, Terraform Associate, RHCE)
• An enthusiastic homelab and a good sense of humor

What the company offers

• A hands-on DevOps role with a clear development path toward a full DevOps Engineer position.
• Structured onboarding, a dedicated technical mentor, and a clear learning roadmap from fundamentals to advanced topics.
• A product-driven environment with purpose, clarity, and ownership – close to the technology and the people building it.
• A hybrid work model with flexibility and modern tooling.
• Competitive salary and equity participation opportunities.
• A young, dynamic team with the will to achieve something together – including cool team events.

About the company

Xelon AG fosters a young and dynamic team culture where members are driven to achieve shared goals. The environment is product-focused, emphasizing purpose, clarity, and ownership, allowing employees to work closely with the technology and the people building it.

• The team is young and dynamic, with a will to achieve something together.
• The environment is product-driven, with purpose, clarity, and ownership.