Freelance NixOS Engineer (m/f/x) in Bonn, Iserlohn

Freelance NixOS Engineer (m/f/x) Location: Bonn, North Rhine-Westphalia, Germany Start: Jan 2026 Duration: 12 months (with possible extensions) Workload: Full-time Remote: 95% remote within Germany, 5% on‑site in Bonn Language: German Responsibilities System configuration: creation, maintenance, and expansion of NixOS configurations for servers, containers, and desktops. Infrastructure as Code: use of tools such as Terranix to manage NixOS with Terraform. Cluster management: orchestrate multi‑node deployments and configuration distribution. DevOps & CI/CD: build and maintain pipelines. Cloud & virtualization: provision and manage infrastructure in cloud environments. Monitoring & security: integrate DevSecOps aspects. Support and training: help development teams with NixOS‑based processes. Must‑Haves Deep understanding of NixOS and Nix package manager. Experience with declarative systems such as Colmena, NixOps, Terranix. Knowledge of Terraform, cloud platforms (OpenStack, AWS), container technologies (Docker, Kubernetes). Strong programming and scripting in Nix, Bash, Python. Experience with CI/CD tools, monitoring systems. Fluent German (written and spoken). Desired Skills and Experience NixOs Engineer NixOs Operating System DevOps Infrastructure as Code (IaC) CI/CD Terranix Cloud Containers Docker Kubernetes AWS OpenStack Python Bash Nix Pipeline DevSecOps Contact To apply, send an email with your hourly rate and updated CV including a detailed list of freelance projects. Ensure the mentioned technology stack is clearly visible in your CV. Email: j.mampaso(at)computerfutures.at Additional Information SThree_Germany is acting as an Employment Business in relation to this vacancy. Seniority level: Mid‑Senior level Employment type: Contract Job function: Information Technology Industries: Technology, Information and Internet #J-18808-Ljbffr