Linux System Administrator (Junior to Mid-Level)

We’re looking for a motivated and reliable Linux System Administrator to support our growing IT operations. This is a fantastic opportunity for someone with a solid foundation in Linux and networking who’s eager to grow, experiment, and make a real impact in a collaborative environment.

What You’ll Do

• Provide user and system-level support across Linux distributions (CentOS 7(still running on some machines), AlmaLinux 8, Linux Mint, Debian)

• Troubleshoot and support various desktop environments – Gnome, KDE, MATE, etc

• Optimize and maintain key applications (Firefox, Chrome, Thunderbird)

• Apply regular system updates and security patches

• Diagnose and resolve hardware issues and performance bottlenecks

• Assist in the administration of LDAP and Samba services

• Support mail infrastructure (Postfix, Courier IMAP, Amavis)

• Manage VPNs (IPsec/OpenVPN), firewalls, routing, and advanced iptables rules

• Participate in automating repetitive tasks and improving internal tools (e.g., scripting system checks, backups, and deployments)

• Constantly seek ways to improve infrastructure performance, security, and user experience

What You Bring

• Solid foundational knowledge of networking principles: VLANs, Layer 2/3 switching, and routing

• Experience administering Linux systems, ideally Red Hat–based (CentOS, AlmaLinux); Debian-based familiarity is a plus

• Basic scripting skills in Bash; exposure to Python or Perl is a bonus

• Familiarity with core infrastructure services such as LDAP, Samba, and mail servers

• Understanding of secure connectivity tools (Citrix, RDP, OpenVPN, iptables)

• Exposure to virtualization platforms (e.g., Proxmox, VMware) is a plus

• Good command of English; French is a plus

• 2+ years of experience in a Linux user support or system administration role

• Self-starter with strong problem-solving skills and a collaborative mindset

• Enthusiasm for automation and system optimization

• Curiosity and drive to explore, test, and learn new technologies

• A proactive attitude — not just fixing issues but improving how others work

What We Offer

• Standard working hours (Monday–Friday)

• Attractive social benefits:

• 185 BGN/month in food vouchers

• Private healthcare insurance

• 24 days of paid annual leave + 1 for birthday

• Friendly, team-oriented culture

• Office located just 1 minute from “Konstantin Velichkov” metro station

• Ultimate freedom to experiment, learn, and grow — your ideas are valued

• A chance to advance quickly by taking initiative and ownership

• Competitive salary aligned with your skills and experience