Principal Engineer - Cyber Countermeasures

AmerisourceBergen • Conshohocken, PA

65d • Remote

About The Position

The Principal Engineer, Cyber Countermeasures, will serve as a senior technical authority within the global Cyber Defense organization. This role is responsible for designing, implementing, and advancing proactive defense measures that detect, disrupt, and degrade adversary operations across enterprise environments. The Principal Engineer will lead the development of countermeasure strategies, detection engineering, and security automation to outpace evolving threats. This position requires deep technical expertise, a strong understanding of adversary tactics, and the ability to translate threat intelligence and attack simulations into resilient defenses.

Requirements

• Bachelor's degree in Cybersecurity, Computer Science, Information Systems, or equivalent work experience; Master's degree preferred.
• Advanced knowledge of adversary TTPs, cyber defense operations, and detection engineering methodologies.
• Familiarity with MITRE ATT&CK, MITRE D3FEND, Cyber Kill Chain, and deception frameworks.
• 10+ years of progressive experience in cybersecurity, with at least 7 years in detection engineering, red/purple team operations, or cyber defense countermeasures.
• Demonstrated expertise in designing and implementing countermeasures to mitigate sophisticated adversary campaigns.
• Hands-on experience with SIEM, EDR, SOAR, and deception technologies (e.g., Splunk, CrowdStrike, Sentinel, Illusive, or Attivo).
• Proven ability to operationalize adversary simulation and intelligence into measurable security improvements.
• Experience in developing security automation scripts and tools (e.g., Python, PowerShell, or similar).
• Strong communication skills with the ability to present defensive strategies and technical findings to both technical teams and executive stakeholders

Nice To Haves

• GIAC Cyber Threat Intelligence (GCTI)
• GIAC Reverse Engineering Malware (GREM)
• Offensive Security Certified Professional (OSCP) or Offensive Security Experienced Penetration Tester (OSEP)
• Certified Information Systems Security Professional (CISSP) or equivalent senior-level certification a plus

Responsibilities

• Lead the design and implementation of cyber countermeasures to prevent, detect, and disrupt advanced adversary tactics, techniques, and procedures (TTPs).
• Develop and optimize detection engineering use cases, correlation rules, and behavioral analytics across SIEM, EDR, SOAR, and cloud platforms.
• Partner with threat intelligence and red team functions to emulate adversary tradecraft and convert insights into actionable countermeasures.
• Lead efforts to integrate deception technologies, honeypots, and adversary engagement strategies into enterprise defenses.
• Collaborate with SOC, incident response, and vulnerability management teams to ensure countermeasures are actionable, tested, and continuously improved.
• Engineer security automation and orchestration workflows to accelerate incident detection and response.
• Act as a technical escalation point during major incidents where adversary countermeasures must be deployed in real-time.
• Monitor industry research, emerging threats, and evolving attacker techniques to ensure defenses remain ahead of adversary capabilities.
• Mentor SOC engineers, detection engineers, and other cyber defense staff in adversary disruption tradecraft.
• Provide input to executive leadership on countermeasure effectiveness, defensive gaps, and future-state strategies.

Benefits

• We provide compensation, benefits, and resources that enable a highly inclusive culture and support our team members' ability to live with purpose every day.
• In addition to traditional offerings like medical, dental, and vision care, we also provide a comprehensive suite of benefits that focus on the physical, emotional, financial, and social aspects of wellness.
• This encompasses support for working families, which may include backup dependent care, adoption assistance, infertility coverage, family building support, behavioral health solutions, paid parental leave, and paid caregiver leave.
• To encourage your personal growth, we also offer a variety of training programs, professional development resources, and opportunities to participate in mentorship programs, employee resource groups, volunteer activities, and much more.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 5,001-10,000 employees