Remote Senior System Administrator / Team Leader (Cybersecurity)

IT Develop is a company specializing in advanced IT solutions and cybersecurity. The founder is Paweł Hordyński (CyberGuru), active in the industry and building a community around practical security approaches. The company works in a small, decisive team focusing on competence rather than titles. Projects include infrastructure management (security by design), infrastructure hardening, monitoring and detection systems (SIEM, EDR, XDR, SOAR), incident analysis and DFIR activities, secure architecture design, penetration testing, social engineering, and open-source intelligence.

• 5+ years experience in system administration (Linux and Windows Server)
• Experience at the intersection of administration and cybersecurity
• Team coordination or leadership predispositions
• Knowledge of Zabbix, Wazuh, Graylog, MySQL, HAProxy, Redis, Cloudflare, IIS, Ansible
• Skills in system hardening, network administration, cloud solutions, vulnerability management, high-performance infrastructure design

Nice to have:

• Blue Team / SOC / DFIR experience
• NGFW (Fortigate or similar)
• Scripting (Bash, Python)
• Certifications: CISSP, CISM, CISA, CRISC, CCSP
• Approach "automate or die"

Infrastructure management:

• Administer Linux (Debian, Ubuntu) and Windows Server systems
• Design and maintain system architecture

Cybersecurity:

• System and service hardening
• Vulnerability management and patch management
• Incident response and threat analysis

Monitoring and detection:

• Implement and develop SIEM (Zabbix, Wazuh, Graylog)
• Build detection and alerting scenarios

Infrastructure and network:

• Manage HAProxy, Redis, CDN integrations (Cloudflare)
• Configure and maintain NGFW (Fortigate)

Database administration:

• Manage MySQL databases (performance, security, backups)

Blue Team / DFIR:

• Incident analysis and forensic support

Team leadership:

• Coordinate administrators' work
• Mentor less experienced staff
• Implement standards and best practices