Linux System Developer

Mid • Remote

Kraków, Poland

Role and Responsibilities

Develop and maintain Linux-based systems and infrastructure for SDN and Network Automation projects.
Participate in the full development cycle, from requirements and specification to architecture and system testing.
Troubleshoot and resolve system-level issues, including kernel-level problems and hardware-software interactions.
Implement security best practices for Linux systems, including access control, patch management, and vulnerability assessments.
Stay updated with the latest Linux technologies, kernel updates, and industry trends.

Skills and Qualifications

Very good knowledge of and experience with at least one of the following languages: C/C++, Bash, or Python.
Strong understanding of Linux kernel internals, system calls, and device drivers.
Experience with Linux networking (e.g., routing, iptables, CNI) and K8s networking.
Proficiency in scripting languages (Bash, Python) and automation tools (Ansible, Terraform).
Experience with CI/CD pipelines and build processes.
Advanced technical English skills.

Nice to have

Familiarity with SDN concepts, Segment Routing, and Zero Touch Provisioning.
Experience with making software for telecommunication systems.
Operational experience with enterprise-class routers, switches, and servers.
Knowledge of protocols such as IPv4/6, BGP, MPLS, EVPN.
Ability to optimize Linux kernel performance and implement custom drivers for network hardware.

speedapp

Speedapp is a dynamic company specializing in building and managing IT teams for clients worldwide, including in countries like Israel, Austria, and the USA. With over 10 years of experience, speedapp has established itself as a leader in the IT services industry, going beyond traditional HR functions to offer comprehensive team management solutions. The company prides itself on its team of IT experts and professionals who are dedicated to delivering high-quality services. Speedapp has been recognized for its rapid growth and excellence, having won the "Forbes Diamonds" award four times consecutively from 2022 to 2025. It is also a member of the European Fast Growth Icons network and FinTech Poland, and was ranked 18th among the 100 fastest growing companies in 2023 by Clutch. These accolades highlight speedapp's commitment to innovation, growth, and excellence in the IT sector.