Senior Linux Hacker & Nix Wizard - Enterprise Infra

Virtuslab Ltd.; Polska; Hybrid; PLN 220,000 - 300,000; Full time

Benefits offered by this job

Home office reimbursement

Training Package

Virtusity / in-house training

A lot more perks

Job summary

VirtusLab Ltd. is seeking a Python expert with deep Linux internals knowledge to maintain and modernize enterprise data platforms. The role focuses on end-to-end infrastructure operations, automation, and data pipeline integrations across Python and Java stacks.

You will map and secure graph connections (GraphDB) with strong emphasis on security hardening, monitoring, and alerting, enabling a scalable, high-availability developer ecosystem within a dynamic environment.

Qualifications

• 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.

Responsibilities

• Maintain and modernize core infrastructure and data platforms for a large-scale enterprise ecosystem.
• Map, trace, and secure graph data connections (GraphDB) across the ecosystem with rigorous security hardening, monitoring, and alerting.
• Automate and optimize data processing pipelines using Python and Java stacks.
• Ensure high availability and reliability of services, with robust observability and cross-boundary monitoring.

Skills

Python

Linux internals

Nix

Self-driven problem solving

Tools

GraphDB

Neo4j

GraphQL

Kafka

Java

Job description

VirtusLab Ltd. is seeking a Python expert with deep Linux internals knowledge to maintain and modernize enterprise data platforms. The role focuses on end-to-end infrastructure operations, automation, and data pipeline integrations across Python and Java stacks.

You will map and secure graph connections (GraphDB) with strong emphasis on security hardening, monitoring, and alerting, enabling a scalable, high-availability developer ecosystem within a dynamic environment.