DevOps Engineer — Linux Infra, CI/CD, Security

Papers AG; Zug; Hybrid; CHF 110,000 - 170,000; Full time

Benefits offered by this job

25 days vacation per year

2 days home office per week

Learning and development supported

Regular team events

Job summary

Papers AG in Zug, Switzerland, is seeking an experienced DevOps/SRE professional to strengthen our self-hosted Linux infrastructure and CI/CD pipelines. You will manage Ubuntu servers, Docker and Docker Compose, Ansible, Nginx, and our security posture, while collaborating with backend engineers to improve delivery, reliability, and incident response.

This role offers autonomy, a meritocratic culture, and the chance to influence DevOps strategy from day one, with 25 days vacation and partial

Qualifications

• 3+ years hands-on experience in DevOps, SRE, or infrastructure roles.
• Proficient with Linux/Ubuntu system administration on self-managed servers.
• Comfortable with Docker / Docker Compose and CI/CD workflows (GitLab CI).
• Experience with infrastructure-as-code (Ansible especially).
• Confident with Nginx, TLS, shell scripting, and practical networking (reverse proxies, firewalls, VPN/overlay networks).
• Comfortable owning a metrics/alerting stack and responding to incidents.
• Strong written and verbal communication skills in English.
• Self-driven, self-organized, pragmatic, and comfortable working independently.

Responsibilities

• Manage and improve our self-hosted, Linux-based infrastructure (Ubuntu) running on a fleet of dedicated/bare-metal servers
• Keep servers patched and up to date (OS/security updates, reboots) and maintain the various applications we self-host
• Design and maintain CI/CD pipelines (GitLab CI): build images, push to the GitLab Container Registry
• Set up and optimize Docker and Docker Compose deployments
• Automate infrastructure and host provisioning with Ansible
• Define and enforce backup strategies and disaster-recovery processes.
• Run our observability stack — Telegraf + InfluxDB + Grafana for metrics and alerting (alerts route to Teams/PagerDuty), Graylog for log aggregation — and write runbooks for the alerts
• Administer Microsoft 365 / Entra ID (Azure AD) — identity & access management, MFA, Conditional Access, SSO, and email/collaboration security
• Own and continuously improve our security posture: SSH/host hardening, firewalls, secrets management, least-privilege access, periodic access reviews, and incident response
• Participate in on-call rotations to support critical services (incl. the Acurast blockchain/bridge infrastructure)
• Collaborate with backend engineers to streamline integration and delivery
• Continuously identify and automate repetitive tasks to reduce manual intervention

Skills

DevOps

SRE

Linux Admin

CI/CD

Security

Networking

Tools

Docker

Docker Compose

GitLab CI

Ansible

Nginx

Telegraf

InfluxDB

Grafana

Graylog

Job description

Papers AG in Zug, Switzerland, is seeking an experienced DevOps/SRE professional to strengthen our self-hosted Linux infrastructure and CI/CD pipelines. You will manage Ubuntu servers, Docker and Docker Compose, Ansible, Nginx, and our security posture, while collaborating with backend engineers to improve delivery, reliability, and incident response.

This role offers autonomy, a meritocratic culture, and the chance to influence DevOps strategy from day one, with 25 days vacation and partial