Lead Offensive Cybersecurity Engineer

Parry Labs, LLC; Huntsville (AL); On-site; USD 110,000 - 180,000; Full time

Benefits offered by this job

Education assistance

Unlimited PTO

Workplace flexibility

Job summary

Parry Labs, LLC is seeking an experienced security engineer to lead authorized offensive security assessments of software, network interfaces, and distributed mission systems in Huntsville. You will identify vulnerabilities, demonstrate their impact, and coordinate fixes with engineers. The target start is November 2026.

The role requires 7+ years in security engineering, hands-on testing, and experience with Rust/C/C++ review and Python tooling. U.S.

Qualifications

• 7+ years of security engineering experience, including hands-on offensive testing or vulnerability research.
• Experience with authorized penetration testing, protocol analysis, fuzzing and vulnerability assessment.
• Ability to review Rust or C/C++ and develop security test tooling in Python or a systems language.

Responsibilities

• Develop threat models and security test plans linked to system requirements and potential failure modes.
• Define authorized test scope, rules of engagement and stop conditions with program stakeholders.
• Conduct penetration testing, protocol analysis and vulnerability research in approved test environments.
• Build protocol and parser fuzzing tools. Add repeatable security checks to automated test workflows.
• Assess Linux services and network interfaces. Review Rust or C/C++ code for security weaknesses.
• Evaluate authentication, digital signatures, replay protection and key handling with software and cryptographic engineers.
• Document reproducible findings, impact and remediation priorities. Retest fixes and preserve test evidence.
• Support red-team and blue-team exercises. Keep assessment signoff separate from implementation ownership.

Skills

Offensive security testing

Vulnerability research

Penetration testing

Python

Rust/C/C++

Linux/network analysis

Security tooling development

Education

Bachelor's degree in cybersecurity / CS / engineering

Tools

Fuzzing tools

Job description

Parry Labs, LLC is seeking an experienced security engineer to lead authorized offensive security assessments of software, network interfaces, and distributed mission systems in Huntsville. You will identify vulnerabilities, demonstrate their impact, and coordinate fixes with engineers. The target start is November 2026.

The role requires 7+ years in security engineering, hands-on testing, and experience with Rust/C/C++ review and Python tooling. U.S.