Penetration Tester
WarCollar Industries
Position Overview WarCollar Industries is seeking a highly skilled Penetration Tester to support a mission‑critical Federal client. If you're passionate about offensive cybersecurity, identifying vulnerabilities before adversaries do, and protecting national security systems, we'd like to speak with you. As a Penetration Tester, you will perform technical security assessments against customer systems in support of certification, accreditation, and overall cyber resilience. You'll leverage industry‑leading tools and advanced technical expertise to identify vulnerabilities, simulate real‑world attack scenarios, and deliver actionable recommendations that strengthen enterprise security. Required Skills Conduct penetration tests against networks, applications, operating systems, and cloud environments. Perform vulnerability assessments using automated and manual testing techniques. Simulate adversary tactics, techniques, and procedures (TTPs) to identify exploitable weaknesses. Document findings, assess risk, and provide detailed remediation recommendations. Collaborate with cybersecurity engineers, system administrators, and stakeholders to improve security posture. Support security validation efforts for Certification & Accreditation (C&A) activities. Stay current on emerging threats, attack vectors, and offensive security methodologies. Desired Skills Experience conducting penetration testing or offensive cyber operations. Knowledge of network protocols, operating systems, web application security, and common attack techniques. Experience with industry‑standard penetration testing tools and frameworks. Strong understanding of vulnerability analysis, exploitation techniques, and security best practices. Excellent analytical, technical writing, and communication skills. Relevant certifications such as OSCP, GPEN, CEH, CISSP, or equivalent are a plus. Additional Details Active TS/SCI Full Scope Polygraph clearance is required. About WarCollar Industries WarCollar Industries, LLC is a veteran‑owned small business. We maintain a team of cybersecurity experts committed to protecting complicated data and distribution systems and providing decision makers with the most accurate assessment of residual risk possible. We work with our clients to solve the toughest challenges in the ever‑evolving digital landscape. Services include network defense, computer network attack, secure network design, penetration testing and vulnerability assessment. WarCollar enables its clients to find, fix, stop, and ultimately solve cybersecurity problems across their entire enterprise. Benefits Medical insurance premium coverage PTO based on billable hours Federal holidays plus your birthday Matching 401k, education reimbursement plus paid training days Performance bonuses Referral bonuses Government shutdown protection Monthly team building events plus two major social events annually Equal Opportunity Employment WarCollar Industries, LLC is an equal opportunity employer. WarCollar does not discriminate in employment based upon race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, status as a protected military veteran, or other non‑merit factor. #J-18808-Ljbffr WarCollar Industries
$131.3k - $237.35k
...Description Leidos is seeking a Penetration Tester to support an enterprise IT program. We are looking for a cyber security professional to conduct penetration testing and ethical hacking, to target, assess, and exploit risk and vulnerabilities of information systems....Suggested- ...Penetration Tester Everforth ECS is seeking a Penetration Tester to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax. This position is contingent upon contract award. The War Data Platform (WDP) is a key initiative within the U.S. Department...SuggestedContract workLocal area
- Great written and verbal communication skills Ability to work with all levels of the "business" Top 5 Technical Skills Tenable Qualys MS Office Experience with CVE Experience with Vulnerability Management Top 2 Soft Skills Great written and verbal communication skills ...SuggestedContract work
$150k - $195k
Overview VTG is looking for multiple levels (Level 2, 3 & 4) of a Penetration Tester in Chantilly VA and Aurora CO. (Note: position is contingent upon program award and the postions are located in Chantilly VA & Auroro CO) A Penetration Tester (Pen Tester) is a security...SuggestedWork experience placement$113.2k - $237.8k
Job Title: Penetration Tester Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None Opportunity Perform computer network evaluations...SuggestedFull timeContract workWork experience placementImmediate startFlexible hours- ...Job Description Job Description Principal Penetration Tester Altus Consulting seeks a seasoned cybersecurity professional to spearhead our penetration testing initiatives. As a key member of our elite team, you'll play a crucial role in safeguarding some of the...
$130k - $145k
...Job Description Job Description Dark Wolf is actively seeking an experienced Penetration Tester to join our innovative team. This individual will play a critical role in assessing and enhancing the security of various products, including hardware, software, and embedded...Hourly pay$99k - $206k
Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability...For contractorsImmediate startRemote work- Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what’s happening now and shape what’s coming next. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help...
$50 - $85 per hour
...continental USA. TestPros is dedicated to making lives better, safer and more secure. TestPros is looking for an experienced Penetration Testers to support our IT Security consulting work for various Commercial and Federal consulting services projects. Start: Future...Remote jobContract workPart timeFor contractorsWork experience placementImmediate start- Cybersecurity Systems Analyst (FedRAMP) Entrusted by companies with challenging Cybersecurity and IT data management recruiting needs, Flex Staffing Resources identifies exceptional talent and cutting edge companies and brings them together. Location: Herndon, VA...Remote workFlexible hours1 day per week
- ...our shared goal. _____________________________________________________________ We are seeking a highly skilled and proactive Penetration Testing SME to join our Cybersecurity team. As a Penetration Testing SME, you will play a critical role in protecting our clients...Temporary workLocal areaImmediate start
- ...Active TS/SCI with Full Scope Polygraph LOCATION: Full-time, onsite in Herndon, VA We are hiring a Cyber Security Engineer (Penetration Tester) with proven experience applying attack methods, exploitation techniques, and advanced network analysis to evaluate...Full timeWork experience placement
$142k - $173.5k
Title: Information System Security Officer (ISSO) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this...Temporary workLocal areaRelocation packageFlexible hours- hackajob is collaborating with Nightwing to connect them with exceptional professionals for this role. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers...RelocationRelocation package
- Senior Information Systems Security Officer (ISSO) Location: Annapolis, MD / Reston, VA / Washington, DC Work Model: 100% Onsite (SCIF Environment) Work Type: Full-Time Experience Required: 13+ Years The Senior ISSO will support mission-critical cybersecurity initiatives...Full time
$120k - $150k
Babel Street is the trusted technology partner for the world’s most advanced identity intelligence and risk operations. We deliver advanced AI and data analytics solutions providing unmatched, analysis‑ready data regardless of language, proactive risk identification, 3...Flexible hours$99k - $225k
Information System Security Officer Reston, VA Top Secret/SCI Polygraph Career Level not specified $99,000 - $225,000 Job Description Job Number: R0239724 Information System Security Officer The Opportunity: We're looking for an Information System Security Officer...For subcontractor- ...troubleshooting of operational IA and CND systems. Performs limited penetration testing and routine exploit analysis. Performs system or... ...with application leads, sysadmins, DBAs, developers, and testers to ensure assigned systems are security compliant and achieve/...
- ...DESIRED SKILLS Experience with cloud security models Knowledge of identity and access management (IAM) Familiarity with penetration testing tools Understanding of secure software development practices Proficiency in scripting for security automation (e.g....Temporary workFor contractorsImmediate startFlexible hours
- At Excelity, we're passionate about delivering innovative technology solutions that help businesses thrive. Whether you're looking to streamline your operations, improve efficiency, or enhance customer engagement, our team of experienced professionals is here to help. ...Contract workTemporary workWorldwideFlexible hours
- Information Systems Security Officer (ISSO) Mantis Security is a leading specialty firm of high caliber talent who specialize in Cyber Operations, Cyber Defense, Information Assurance, Software Development, DevSecOps, Security Engineering, and Cloud Engineering. We ...Immediate start
- Stealth Solutions is seeking a knowledgeable and detail-oriented ISSO to support security compliance, risk management, and authorization activities for Salesforce and cloud-based federal systems. The ISSO will ensure continuous adherence to security controls, perform assessments...Work from homeFlexible hours
$125k - $150k
Information System Security Officer (ISSO) - ISA Job ID: ISA-26-04 | Team: ISA | Location: Richardson, TX Responsibilities Maintain the operational security posture for programs and information systems Prepare, review, and maintain documentation to include System Security...- hackajob is collaborating with Nightwing to connect them with exceptional professionals for this role. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers...RelocationRelocation package
- Job Title Job Description Conducts forensic examinations of digital and other multimedia evidence through the application of scientific practices for the recognition, collection, analysis, and interpretation of digital evidence for criminal and civil law or regulatory...Local area
- ...ensure system security compliance through the entire program life cycle. Collaborate with application leads, DBAs, developers, and testers to achieve and maintain Authority to Operate (ATO). Develop and maintain critical security documentation, including System Security...Full timeInterim roleFlexible hours
- IT Security Specialist LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a detail-oriented and dedicated IT Security Specialist to join our team and safeguard...Temporary workFor contractorsImmediate startFlexible hours
- Cyber Analyst Position Base-2 Solutions is seeking a Cyber Analyst to support intelligence analysis related to cyber-relevant national security issues. This role contributes to all-source analytic production by evaluating complex information, integrating reporting from...
- Job Title Required Skills Work with the business unit or other subject matter experts to identify or refine technical requirements for application under development or being revised. Document requirements for enhancements for specific application. Review and...
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