LEAD CYBER THREAT SECURITY ANALYST

Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities.

At Lumen, you’ll work on infrastructure customers rely on today and build for what’s next, where performance, security, and resilience matter.

This is a high accountability environment where bold ideas drive real innovation for our customers, partners, and industry. The work is challenging, expectations are clear, and trust is built into how we operate. If you’re ready to take ownership, deliver meaningful impact, and help shape the future of AI‑ready connectivity, join us today.

The Role

We are seeking a skilled and experienced Threat Hunter to join our growing Security Operations team. The ideal candidate should be a proactive and resourceful individual with a passion for identifying and neutralizing advanced threats to strengthen customer defenses. This role requires a deep understanding of threat hunting methodologies, a strong analytical mindset, and exceptional communication skills. The role is expected to potentially work overtime in the event of responding to Security Incident to accommodate a global 24x7x365 Managed Threat Security Services program.

The Main Responsibilities

Threat Hunting and Analysis

• Conduct proactive threat hunting activities across various environments (endpoints, networks, cloud).
• Develop and maintain threat hunting hypotheses based on current threat intelligence and organizational risk assessments.
• Apply structured threat hunting methodologies leveraging frameworks such as MITRE ATT&CK, PEAK, TAHITI, THMM and Diamond Model to guide hypothesis creation, evidence collection and iterative improvements.
• Deep technical knowledge of adversary tactics, malware analysis, intrusion detection and cloud security.

Tooling and Automation

• Familiar with EDR/XDR solutions, SIEM platform, data pipeline and threat hunting tooling to detect and disrupt adversary tactics.
• Develop custom scripts and tools to automate threat hunting processes and improve efficiency.
• Leverage various threat hunting techniques, including but not limited to, YARA rules, IOC analysis, and behavioral based analysis.

Incident Investigation

• Analyze security logs, network traffic, and endpoint data to identify malicious activity and potential threats.
• Investigate security incidents and provide detailed reports on findings, including root cause analysis and remediation recommendations.
• Collaborate with other security teams (incident response, vulnerability management, etc.) to share threat intelligence and coordinate security efforts.

Cyber Threat Intelligence (CTI)

• Develop and manage Cyber Threat Intelligence while staying up to date on the latest threat landscape, attack techniques, and emerging technologies.
• Map advisory behaviors to ATT&CK techniques and translate findings into actionable intelligence.
• Share actionable intelligence with internal teams and external stakeholders.
• Present findings and recommendations to technical and executive audiences.

Continuous Improvement

• Contributes to the development and improvement of threat hunting strategies, processes and playbooks aligning with PEAK and TAHITI cycles for structural threat hunting.
• Develop and maintain a strong understanding of the organization's infrastructure and applications to strengthen awareness of evolving threats and adversary behavior.
• Drive maturing of the overall security operations service. What We Look For in a Candidate

Required

• degree in Computer Science, Cybersecurity, or a related field.
• At least 3+ years of experience in cybersecurity, with a minimum of 2 years focused on threat hunting.
• Strong unders