Linux Hacker & Nix Wizard (Senior / Expert)

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Description

VirtusLab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry. Required Expertise and Capabilities: Deep, hacker-level understanding of Linux internals, memory management, IPC, and system calls. Expert-level Python (performance optimisation, async execution, C/Rust interop). Hands-on expertise with Nix / NixOS or strong mastery of declarative system configuration & reproducible builds. Advanced experience with low-level kernel diagnostics and profiling (eBPF, perf, strace, valgrind). Fluent command of spoken and written English. Uncompromising ownership, analytical rigour, and a natural instinct for deep technical problem-solving. Project ESM Project Scope Supporting a large-scale enterprise ecosystem powering thousands of software developers by maintaining and modernizing core infrastructure and data platforms. The project focuses on end-to-end infrastructure operations, automation, and data pipeline integrations. Key architectural priorities include mapping, tracing, and securing graph data connections (GraphDB) across the ecosystem, while maintaining rigorous security hardening, robust monitoring, and proactive alerting. Tech stack Linux / Unix Automation & Scripting: Python Data Pipelines & Integra

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