System Engineer / Site Reliability Engineer | 1
About The Position
Join our team as a key contributor responsible for the end-to-end operation of approximately 700 systems across TEST, AC1, PreLIVE, and LIVE environments. You will work in a highly automated, performance-driven infrastructure, ensuring stability, scalability, and continuous improvement of our VoIP and Radius platforms. As part of our team, you will operate, maintain, and enhance VoIP and Radius systems within high-performance data centers. You will develop and improve automated system management using Puppet and Debian-based server clusters, and drive projects within the VoIP and Radius environment across their full lifecycle — from design and implementation to deployment. You will perform performance analysis and optimization to ensure system efficiency and reliability, plan and execute rollouts of new features and system updates, and carry out regular maintenance activities (system expansions, updates, upgrades). You will analyze, troubleshoot, and resolve technical issues in a structured and goal-oriented manner, coordinate with upstream providers by creating and managing trouble tickets, and participate in an on-call rotation (additional compensation provided).
Requirements
- Strong Linux expertise
- Passion for open-source technologies
- 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
- Knowledge of MySQL / MariaDB administration
- A proactive, service-oriented mindset and ability to quickly understand complex systems
- Good English skills (written and spoken)
Nice To Haves
- A degree in Computer Science, Natural Sciences, or a comparable qualification
- Experience with virtualization (e.g. KVM, Proxmox, oVirt, OpenStack)
- Knowledge of VoIP technologies and telephony systems (e.g. Asterisk, Kamailio)
- Experience with FreeRADIUS
- Basic German is an advantage
Responsibilities
- 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)
Benefits
- Fully funding training, certifications, and participation in technology conferences
- 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
- 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
- Dedicated team-building budget for online and on-site team events
- Opportunities to participate in charitable initiatives and local sports programs
- Additional compensation for on-call rotation
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
Associate degree
