Liberate the World From Traditional Communication Systems!
Founded in 2004, Bicom Systems has grown into a global communications company with team members and customers around the world. We create reliable, easy-to-use tools that help businesses stay connected - through calling, messaging, and modern collaboration solutions. Our products are used in thousands of workplaces every day, supporting millions of people as they communicate and work together. What sets us apart is the strong partnerships we build and the supportive global ecosystem behind everything we do.
At Bicom Systems, we believe results come from teams that take ownership, act with trust, and are accountable for their work. We invest in professional growth, encourage thoughtful decision-making, and support a healthy work-life balance.
We are looking for a senior professional with 5+ years of experience who wants to take initiative, make meaningful contributions, and grow with a supportive team. Join us!
Key responsibilities:
- Operate and support a 24/7 production VoIP hosting environment, including monitoring, incident response, and on-call rotation;
- Build, maintain, and optimize virtualization and container platforms supporting VoIP softswitches;
- Design and maintain monitoring, alerting, and observability across infrastructure and network layers;
- Automate infrastructure provisioning and lifecycle using IaC and scripting tools;
- Troubleshoot complex Linux, storage, and network issues with a focus on latency, QoS and reliability;
- Lead platform upgrades, maintenance, and migration with minimal or no downtime;
- Perform capacity planning and performance optimization;
- Create and maintain operational documentation and runbooks.
Requirements:
- Strong Linux systems administration (Debian/Ubuntu, RHEL/CentOS/Alma, kernel troubleshooting).
- Deep experience with LXC/LXD containers and at least one hypervisor (KVM/QEMU, Proxmox, VMware).
- Hands-on experience with ZFS (pool design, tuning, snapshots, send/receive, scrub/repair).
- Storage networking: iSCSI target/initiator administration and familiarity with NVMe over Fabrics (NVMe-oF / nvme-oTCP) concepts and troubleshooting.
- Proficiency with server-grade hardware: ECC memory, RAID controllers, NVMe drives, BMC remote management, and firmware/BIOS upgrades.
- Scripting and development skills (Bash + one higher-level language such as Python, Go, or Ruby) for automation and tooling.
- Experience implementing monitoring/observability (Prometheus, Grafana, ELK/EFK, or equivalent) and alerting thresholds.
- Strong low-level troubleshooting skills: I/O performance profiling, CPU pinning, network capture/analysis (tcpdump, wireshark), and interpreting kernel logs.
Bonus skills (advantages):
- Experience with VoIP systems and basic telecom/security practices.
- Cluster administration, software-defined networking, or distributed storage.
- CI/CD pipelines and on-call incident handling.
- Familiarity with advanced monitoring tools (optional).
How to stand out (optional):
- Experience with cloud/bare-metal hybrid architectures and hardware automation.
- Knowledge of NFV and performance tuning for virtualized workloads.
- Familiarity with telecom security best practices.
- Experience with container orchestration (Kubernetes).
- Relevant certifications (RHCE, LPIC, CNCF, or vendor-specific).
Number of positions: 1
Location: Bosnia and Herzegovina
Find out more about us on Facebook, Linkedin and www.bicomsystems.com/careers. We look forward to hearing from you!
Top Skills
What We Do
Bicom Systems is an international software telecommunication company. Founded in 2004 and has grown to become a leading global company, employing over 160 people across the world. We have offices in Sarajevo, Tuzla, Zenica, London, Canada, France, and USA. Our teams manufacture, distribute and support unified communications end-to-end software solutions to SMBs, Enterprises, Call Centers, and above all – Telecommunication Service Providers. At this moment our clients are using our virtualization solution, SERVERware, and our PBX telecommunications solution, PBXware on tens of thousands of unique instances. Millions of end-users are using our VoIP phone and application solutions, Meeting, gloCOM GO, and gloCOM, and consuming tens of millions of calls and meetings per day. We achieve all that by creating close relationships with our partners and the whole ecosystem we are in. We are a multicultural community passionate about technology and committed to technological development and innovation. We have a young, dynamic team of engineers that develop our own solutions, and we are proud of all the talents in our company! We are liberating the world from traditional communication systems!
