[Hiring] (Senior) DevOps Engineer - Infrastructure & Security @Testsieger.de Vergleichsportal GmbH

Role Description

Do you want to own infrastructure rather than just keep it running? Here, the full stack is yours – from the Proxmox cluster in our own data center, through firewalls and VPNs, to AWS and the deployment pipelines.

You will be the technical owner of our infrastructure – with a colleague at your side whom you'll grow, and an engineering team that counts on you.

Tasks

• Own the operation of our Linux server landscape: on-premise cluster (Proxmox, ZFS) and AWS
• Run and harden network and security: firewalls, VPN, access control, certificates, hardening – including the network link to our largest partner
• Automate with Ansible and keep infrastructure versioned, reproducible and documented
• Maintain our container platform (Docker, Nomad, Traefik) and CI/CD pipelines (GitHub Actions) so teams ship fast and safely
• Administer MySQL in production: backups, performance, recovery
• Extend monitoring, logging and alerting (Grafana, New Relic) and drive incidents to root cause
• Act as sparring partner for Engineering, Data and Product – and explain why things are built the way they are

Qualifications

• Several years running Linux server environments (Debian/Ubuntu) – you know how to get systems from A to B without assistance
• Solid networking: TCP/IP, routing, DNS, load balancing, firewall and VPN administration
• Proven infrastructure security practice: hardening, access control, security best practices
• Ansible in production, container orchestration (Nomad, Kubernetes or similar), CI/CD pipelines
• Experience with AWS or a comparable public cloud
• MySQL administration in production
• Bash and Python – for tooling, not just one-liners
• Monitoring, logging and troubleshooting are your craft, not an afterthought
• Plus: Terraform, RabbitMQ, Redis, Zero Trust concepts
• Fluent English; German is a plus, not a requirement

Benefits

• Full technical ownership of a real hybrid stack (on-premise + cloud) – you make the decisions, not an architecture board
• Well funded company, attractive salary
• Ownership culture with short paths: you talk directly to the CEO
• Modern stack: Proxmox, AWS, Ansible, Nomad, Docker, MySQL, Python, GitHub Actions, Next.js ecosystem
• Remote from Portugal, with regular visits to Osnabrück and colleagues already based in Portugal

Company Description

Wir aggregieren Testberichte und Kundenbewertungen und helfen Usern, das richtige Produkt zu finden und im Preisvergleich beim günstigsten Händler zu kaufen.