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# Senior Information Security Engineer, Offensive Security

- **Company:** GRVTY, LLC
- **Location:** United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Software System Penetration Testing, Cyber Security, Computer Networks, Packet Analyzer, Network Protocols, Red Team (Cyber Security), Reverse Engineering, Information Technology, Cyber Warfare
- **Published:** July 28, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9061029/senior-information-security-engineer-offensive-security

## About the Role

* Must be able to obtain and maintain an Active TS/SCI with poly, US citizenship required
 * Bachelor Degree in Computer Science or related field is required or 5 years of direct work experience
 * Minimum of 3 years of related work experience is required
 * Completion of formal offensive cyber operations training
 * Experience conducting network exploitation, penetration testing, or red team operations
 * Proficiency with UNIX/Linux and Windows operating systems
 * Strong understanding of network protocols and packet analysis

What Would be Nice to Have

 * Active TS/SCI with poly
 * Advanced operator certifications or specialized training
 * OSCP, GXPN, or similar offensive security certifications
 * Experience with reverse engineering and exploit development
 * Background in offensive cyber operations or advanced red teaming

## Description

Seeking experienced offensive security professionals to conduct security assessments, red team operations, and network exploitation activities in support of client security requirements.

What You'll be Owning

 * Execute offensive cyber operations to assess client networks and identify vulnerabilities
 * Analyze computer networks and systems to identify and assess security weaknesses
 * Perform analysis of malware and security tools to evaluate capabilities
 * Provide written and oral briefings on assessment results to clients and management
 * Train and mentor junior operators on tools, techniques, and tradecraft
 * Develop scripts and tools to improve operational efficiency


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