We are seeking an experienced SOC L3 Expert to join our client on a freelance contract basis. The role involves working 2 days per week on-site in Warsaw, with the remainder remote. You will be responsible for leading advanced incident response activities, threat hunting, and mentoring junior analysts in a dynamic security operations environment.
Contract / Freelance
Immediate / Within 1 Month
Day Rate
Location: Warsaw, Poland (2 days/week on-site) + Remote (3 days/week)
Language: English (Fluent); Polish is a plus
Must have minimum 5+ years of experience in Security Operations Centers, with at least 2 years in a Level 3 SOC ole
Strong incident response and forensic investigation skills
Expert knowledge of SIEM (e.g., Splunk, QRadar, Sentinel), EDR tools (e.g., CrowdStrike, SentinelOne), and network security
Handle high-severity security incidents and lead investigations
Perform threat hunting using SIEM, EDR, and custom scripts
Act as escalation point for L1/L2 analysts
Develop and optimize detection rules, playbooks, and runbooks
Collaborate with wider security and infrastructure teams
Recommend improvements to threat detection and response processes
Analyze threat intelligence and apply it in real-time investigations
Proven experience in L3 SOC or senior incident response roles
Strong analytical and forensic skills (host/network/memory)
Familiarity with MITRE ATT&CK, malware analysis techniques, and threat intel platforms
Hands-on experience with scripting languages (Python, PowerShell, Bash)
Deep understanding of Windows, Linux, and network protocols
Ability to operate under pressure and independently during critical incidents
Relevant certifications such as GCIA, GCFA, GNFA, OSCP, CISSP, SC-200
Experience in hybrid or multi-cloud environments (Azure, AWS, etc.)
Experience in enterprise environments (finance, telco, critical infrastructure)
Long-term extension potential based on performance
📧 jude.russell@next-ventures.com