Senior Linux Hacker, Nix Wizard

Job not on LinkedIn

🔥 0 minutes ago

🇵🇱 Poland – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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VirtusLab

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2010

💼 Consulting

🏭 Manufacturing

📦 Logistics

💰 Private Equity Round on 2021-12

Consulting • Manufacturing • Logistics

VirtusLab is a global technology consulting company specializing in software engineering, IT consulting, and developer experience. The company focuses on improving efficiency and innovation through strategic insight, tailored concept development, and comprehensive project support, particularly in areas like machine learning, cloud engineering, and Scala consulting. With a commitment to driving positive evolution in software technology, VirtusLab helps businesses optimize their technology stacks and achieve scalable solutions for their software needs.

📋 Description

• Work as a Linux Hacker & Nix Wizard in the Tooling Space • Apply deep knowledge of Linux internals, memory management, IPC, and system calls • Develop and optimise Python code, including async execution and C/Rust interoperability • Work with Nix/NixOS, declarative system configuration, and reproducible builds • Diagnose and profile low-level kernel behavior using eBPF, perf, strace, and valgrind • Contribute to system architecture and automation • Own technical problem-solving and deliver outcomes autonomously

🎯 Requirements

• Advanced Linux Core or Low-Level Linux Kernel Internals • Advanced Nix • Expert Python programming • C1/Advanced English communication • Advanced system architecture and automation • Advanced self-driven problem solving • Deep, hacker-level understanding of Linux internals, memory management, IPC, and system calls • Expert-level Python mastery, including performance optimisation, async execution, and C/Rust interop • Hands-on expertise with Nix/NixOS or strong mastery of declarative system configuration and reproducible builds • Advanced experience with low-level kernel diagnostics and profiling, including eBPF, perf, strace, and valgrind • Fluent spoken and written English • Uncompromising ownership, analytical rigour, and deep technical problem-solving ability

🏖️ Benefits

• Attractive salaries • Friendly atmosphere • Self-development opportunities • Good working conditions • Trust and autonomy • Outcome-based work measured by results rather than hours