Senior NixOS, DevOps Engineer

🕒 March 17

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virtual7 GmbH

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 1996

🔌 API

🛍️ eCommerce

API • eCommerce • IT Services

virtual7 GmbH is an IT consulting and software development company that focuses on modernizing digital administration in Germany, creating real value for citizens. With over 200 employees, the company collaborates with federal and state ministries as well as authorities to implement innovative digital solutions in sectors such as environment, energy, finance, healthcare, justice, and social security. They emphasize a responsive, transparent work culture that promotes individual potential and collective growth, aiming to enhance the public sector's efficiency and citizen engagement.

📋 Description

• As a Senior NixOS / DevOps Engineer (m/f/d), you will support our clients in building modern, declarative, and highly automated software and infrastructure processes. • Consulting and implementation around Nix and NixOS: from architecture reviews and the design of modern system landscapes to the production rollout of declarative environments. • Analyze and optimize existing software architectures, source code, and development processes with a focus on quality, efficiency, and reproducibility. • Design, implement, and evolve CI/CD pipelines (e.g., GitLab, Nix Hydra), including automated build, test, and deployment pipelines. • Introduce and secure reproducible builds and modern build systems (e.g., CMake, Meson) in complex enterprise environments. • Build and maintain automated testing environments (unit, integration, and HIL tests) to ensure stable, test-driven development workflows. • Support developer and DevOps teams in adopting declarative, test- and quality-oriented working practices.

🎯 Requirements

• 5 years of relevant professional experience in software development, DevOps, or systems engineering • 3 years of practical experience with Nix and NixOS in professional environments • University degree in an IT-related field or equivalent qualification • Strong knowledge of software architecture and software engineering — from design to production deployment • Solid experience with DevOps practices, declarative CI, build systems, and reproducible builds • Know-how in building automated testing environments (unit, integration, and HIL tests) • Practical experience in at least one programming language such as C++, Rust, Haskell, Python, C, Go, or similar • Experienced with version control (e.g., Git), containerization (e.g., Docker), and modern build tools (e.g., CMake, Meson) • Experience establishing and advancing development and deployment processes in an enterprise context • Ideally: experience with virtualization, microkernel-based systems, or hypervisor technologies • Knowledge of low-level system programming (e.g., ACPI, PCI, interrupt routing, kernel modules) • An analytical, structured, and solution-oriented working style with high quality standards, combined with independent and responsible behavior in complex technical environments • Very good German language skills (C1 level) and conversational English.

🏖️ Benefits

• Flexible working hours and remote work are standard. • Individual hardware budget — configure your workstation the way you’re most comfortable. • Mental health support — we care about your wellbeing. With OpenUp you have free, on-demand access to professional psychological support. • Individual training budget — whether it’s the next certification or a long-awaited language course, you decide what and when to pursue. • Employee PC program — lease your next device for private use easily through virtual7. • Bike leasing (JobRad) or company car — we help you stay as mobile as you need.