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Tech Stack
Tools & technologiesLinuxMariaDBMySQLOpenStackPerlPuppetPythonTCP/IPVoIP
About the role
Key responsibilities & impact- Operate, maintain, and enhance VoIP and Radius systems within high-performance data centers
- Develop and improve automated system management using Puppet and Debian-based server clusters
- Drive projects within the VoIP and Radius environment across their full lifecycle — from design and implementation to deployment
- Perform performance analysis and optimization to ensure system efficiency and reliability
- Plan and execute rollouts of new features and system updates
- Carry out regular maintenance activities (system expansions, updates, upgrades)
- Analyze, troubleshoot, and resolve technical issues in a structured and goal-oriented manner
- Coordinate with upstream providers by creating and managing trouble tickets
- Participate in an on-call rotation (additional compensation provided)
Requirements
What you’ll need- A degree in Computer Science, Natural Sciences, or a comparable qualification
- Several years of experience in IT operations (FOSS systems or Site Reliability Engineering)
- Strong expertise in Linux administration, especially with clustered environments
- Practical experience with ITIL processes (Incident, Problem, and Change Management)
- Solid understanding of networking (TCP/IP, UDP)
- Scripting skills (Bash, Python, Perl) for automation
- Strong analytical and troubleshooting skills
- Experience with virtualization (e.g. KVM, Proxmox, oVirt, OpenStack) – nice to have
- Knowledge of VoIP technologies and telephony systems (e.g. Asterisk, Kamailio) – a plus
- Experience with FreeRADIUS – a plus
- Knowledge of MySQL / MariaDB administration
- A proactive, service-oriented mindset and ability to quickly understand complex systems
- Good English skills (written and spoken); basic German is an advantage
Benefits
Comp & perks- Attractive financial benefits: A cafeteria system that allows employees to personalize benefits by choosing from a variety of options.
- Generous referral bonuses, offering up to PLN6,000 for referring specialists.
- Additional revenue sharing opportunities for initiating partnerships with new clients.
- Professional development and team support: Ongoing guidance from a dedicated Team Manager for each employee.
- Tailored technical mentoring from an assigned technical leader, depending on individual expertise and project needs.
- Community and Well-Being: Dedicated team-building budget for online and on-site team events.
- Opportunities to participate in charitable initiatives and local sports programs.
- A supportive and inclusive work culture with an emphasis on diversity and mutual respect.
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Linux administrationPuppetDebianscripting (Bash, Python, Perl)networking (TCP/IP, UDP)virtualization (KVM, Proxmox, oVirt, OpenStack)VoIP technologies (Asterisk, Kamailio)FreeRADIUSMySQL administrationMariaDB administration
Soft Skills
analytical skillstroubleshooting skillsproactive mindsetservice-oriented mindsetability to understand complex systems
Certifications
degree in Computer Sciencedegree in Natural Sciencescomparable qualification