Sr Offensive Security Engineer

5+ years of hands-on experience in offensive security, penetration testing, red teaming, or a closely related security engineering role.

Demonstrated expertise across multiple domains: web/mobile application, API, network, infrastructure, and cloud (AWS and/or Azure) penetration testing.

Strong understanding of exploitation and post-exploitation techniques, attack-path chaining, and objective-based adversary emulation.

Proficiency with industry-standard offensive tooling such as Burp Suite Professional, Nmap, Metasploit, and Kali Linux, along with vulnerability scanners.

Proficiency in at least one scripting or programming language (e.g., Python, Go, PowerShell, Ruby, or Bash) to build custom tools and automation.

Working knowledge of the MITRE ATT&CK framework and hands-on experience mapping engagements to adversary TTPs.

Excellent written and verbal communication skills, with the ability to present findings to both technical audiences and executive leadership.

Advanced offensive certifications (e.g., OSEP, OSCE³, CRTO, GXPN) and a track record of original security research, CVEs, or responsible disclosures.

Experience with cloud-native attack techniques and container/Kubernetes (EKS/AKS) and serverless security testing.

Experience operating or evaluating continuous/autonomous pen testing and breach-and-attack-simulation platforms .

Familiarity with detection engineering, SIEM/EDR platforms, and building purple team feedback loops into SOC content.

Knowledge of compliance and security frameworks relevant to our environment .

Experience mentoring junior engineers and helping mature an offensive security program.

At First Advantage, team members are united around a noble purpose: helping organizations to safeguard their workplaces and manage risk. The company’s culture is shaped by its core values — Authenticity, Curiosity, Integrity, Teamwork, Customer-Inspired — empowering team members to bring their best ideas forward, collaborate across departments, and make a real impact.

First Advantage offers a variety of culture programs and benefits designed to enhance employee experience and development.

Employee Impact Groups

FA Cares volunteer opportunities

Mentorship Advantage Program

SOAR, award-winning manager development program

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Equal Employment Opportunities at First Advantage First Advantage is an equal opportunity employer. We are committed to providing a workplace and recruitment process that is free from unlawful discrimination, harassment, and retaliation. Employment decisions at First Advantage are based solely on qualifications, merit, and business needs. We do not discriminate in any aspect of employment on the basis of race, color, national origin, ancestry, citizenship, religion, creed, sex, gender identity, gender expression, sexual orientation, marital or family status, pregnancy, age, physical or mental disability, medical condition, genetic information, veteran or military status, or any other characteristic protected by applicable law.