Senior Penetration Tester

Fortreum

Senior Penetration Tester performing penetration testing on networks and applications for FedRAMP compliance. Mentoring junior staff and providing expertise on security vulnerabilities.

Posted 7/23/2026full-timeHerndon • Virginia • 🇺🇸 United StatesSenior💰 $165,000 - $185,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in penetration testing methodologies, tools, and techniques, with a strong focus on web application and network security. Capable of mentoring junior staff and advising clients on vulnerabilities and remediation strategies while maintaining positive stakeholder relationships.

Highest-signal resume keywords

Penetration TestingWeb Application SecurityNetwork SecurityScripting LanguagesTop Secret Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Penetration Testing MethodologiesSocial Engineering TechniquesVulnerability AssessmentRemediation StrategiesContinuous Professional DevelopmentProject CoordinationClient Issue ResolutionSecurity PrinciplesAPI SecurityMobile Application Security

Soft Skills

MentoringRelationship BuildingCommunicationProblem SolvingTeam Collaboration

Tools & Technologies

OWASPOSSTMMPTESBashPythonPowerShellRuby

Certifications & Qualifications

Bachelor's Degree in Computer ScienceBachelor's Degree in Information SecurityTop Secret Clearance

Industry Keywords

Red Team OperationsProfessional ServicesConsultingSCIFCompliance Requirements

Tech Stack

Tools & technologies

PythonRuby

About the role

Key responsibilities & impact

Perform penetration testing on networks, applications (including APIs, mobile apps, and web apps)
Utilize social engineering techniques
Provide mentoring to junior staff
Support Red Team operations
Develop and refine penetration testing methodologies, tools, and techniques
Advise customers on details of vulnerabilities, remediation strategies, and compliance requirements
Prepare final deliverables for delivery to customers
Establish and maintain positive relationships with customers and stakeholders
Lead and coordinate project readiness with internal teams and customers
Resolve client and project issues/blockers
Pursue continuous professional development in achieving industry specific certifications
Perform project readouts with customers

Requirements

What you’ll need

Bachelor's degree in Computer Science, Information Security, or a related field; or 5+ years of equivalent job experience in penetration testing
4+ years of professional services experience (consulting)
5+ years of web application and network penetration testing experience
Proficient in at least one or more scripting languages (i.e., bash, python, PowerShell, ruby, etc.)
Strong technical acumen with regards to penetration testing methodologies
Strong understanding of security principles and methodologies
Familiarity with best practices frameworks such as OWASP, OSSTMM, or PTES
Ability to work in a SCIF in Northern Virginia or Seattle, Washington
Active Top Secret clearance or ability to get a Top Secret clearance

Benefits

Comp & perks

medical insurance
dental insurance
vision insurance
401K plan with a 4% match
company paid short-term disability
company paid long-term disability
company paid AD&D and life insurance
flex time off
annual bonuses
training stipends
certification reimbursements
access to over 30,000 free online training courses
personal cell phone allowance
new hire and annual home office stipend
spot awards
eleven paid holidays