Senior Software Engineer Infrastructure (m/f/d)

Job Description

We're looking for an experienced software engineer to lead the infrastructure efforts of secunet's Software Factory.

Any secunet Location
Involves occasional travel

The Software Factory is secunet's innovation program, designed to provide the technical means to develop entirely new product classes. It consists of a team of highly motivated software engineers focused on cutting-edge, security-focused shared components, and a DevSecOps platform that supports the entire lifecycle of our products. This is a dynamic and evolving team, offering exciting challenges and opportunities for growth.

This position combines both software and systems engineering to build and run IT infrastructure. You will monitor the capacity and performance of our systems, ensuring they run reliably and maintain appropriate uptime. We value fast, incremental improvements. Your efforts will focus on building infrastructure, optimizing systems, and automating processes to eliminate work.

Technologies we use

• Nix is the glue that keeps all our software together
• NixOS is our OS of choice
• Rust is the lingua franca of our development efforts
• Terraform
• OpenTelemetry
• Grafana LGTM stack
• GitLab
• OpenStack

Responsibilities

• Maintain, extend, and continuously improve our infrastructure
• Ensure solid observability across all our services (visualization, alerting, log aggregation)
• Design, build, and own Nix build infrastructure
• Coordinate with internal teams and external partners
• Liaise with secunet's internal IT to keep strategy aligned
• Document your work for users and fellow developers
• Ensure the security of our services using modern technologies

Qualifications

• Excellent problem-solving and communication skills
• Expertise in architecting and operating on-premises deployments
• Extensive experience with the NixOS ecosystem
• Know-how in Infrastructure as Code (e.g., Terraform)
• Proven open source contributions
• Programming experience in Rust, Python, Go, or similar
• Ability to work autonomously and coordinate with broader teams

Bonus points

• Familiarity with German language (advantage but not required)

Our Company Culture & Benefits

• We value open communication, innovation, and teamwork within a collaborative environment with flat hierarchies.
• Flexible working hours and remote work options support work-life balance.
• Opportunities for professional development, coaching, mentoring, and leadership pathways.
• Work with cutting-edge technologies and influence secunet's technological future.
• Competitive salary, bonuses, and benefits including health and wellness programs.