Senior Penetration Tester

  • GovCIO LLC
  • Washington, Washington DC
  • 08/25/2026
Full time Information Technology Telecommunications Python Testing

Job Description

GovCIO LLC seeks a Senior Penetration Tester to lead advanced offensive security assessments for federal customers. You will plan and execute web, network, API, cloud, and mobile penetration tests; perform red teaming, social engineering, and adversary emulation; and deliver clear reports and remediation guidance to stakeholders. You'll collaborate with developers, architects, and security teams to validate fixes, improve secure design, and enhance zero-trust architectures. This role includes mentoring junior testers, refining methodologies, and supporting accreditation and compliance for high-impact government systems.

Responsibilities

  • Plan and execute penetration tests on web, network, cloud, and mobile systems for federal clients.
  • Conduct red team exercises, social engineering, and adversary emulation to assess resilience.
  • Identify, exploit, and document vulnerabilities, providing clear risk and impact analysis.
  • Develop and present detailed technical reports and executive summaries with remediation guidance.
  • Collaborate with engineering and security teams to validate fixes and improve secure design.
  • Support federal compliance initiatives (e.g., NIST, Fed
  • RAMP) with security testing evidence.
  • Mentor and guide junior penetration testers, sharing best practices and methodologies.
  • Continuously refine tools, scripts, and testing methodologies to improve assessment quality.

Required Skills

  • Penetration testing
  • Web application security
  • Network security assessment
  • Cloud security (AWS/Azure/GCP)
  • Red teaming/adversary emulation
  • Social engineering
  • Secure coding and remediation guidance
  • Vulnerability assessment and prioritization
  • Scripting (Python/Bash/Power
  • Shell)
  • Security reporting and documentation