Penetration Tester

• Support the Red Cell team by performing and leading penetration tests that assess the security of customer systems.
• Conduct vulnerability assessments and penetration tests of information systems.
• Identify vulnerabilities and develop recommended remediations that satisfy mandated NIST SP 800-53 security controls.
• Evaluate vulnerabilities and perform root cause analysis using assessment methodologies, including NIST SP 800-115, PTES, the Information Systems Security Assessment Framework (ISSAF), and OWASP WSTG.
• Report and demonstrate findings to system owners and engineers.
• Maintain Red Cell infrastructure.
• Develop or modify tools that automate discovery or exploitation.
• Apply knowledge of computer and network forensics to testing activities.
• Research and maintain proficiency in tools, techniques, countermeasures, and trends in computer and network vulnerabilities, data hiding, and encryption.
• Develop testing methodology and present solutions to problems across multiple complex assignments.
• Contribute to program deliverables and performance metrics., Remote or Hybrid Senior level Senior level Healthtech * Software * Analytics * Biotech * Pharmaceutical * Manufacturing Executes pharmaceutical marketing strategies, visits and develops target healthcare customers, maintains long-term relationships, reports market activity, communicates product information, monitors competitors, collects adverse-event information, supports representative onboarding and product training, and ensures regulatory compliance. CrowdStrike

Software Engineer

40 Minutes Ago Remote or Hybrid 120K-185K Annually Entry level 120K-185K Annually Entry level Cloud * Computer Vision * Information Technology * Sales * Security * Cybersecurity Develop and maintain CrowdStrike’s macOS endpoint security sensor using C/C++ and Swift. Design, implement, and own features across operating-system subsystems including filesystems, memory, processes, and networking. Build reliable, high-performance, multithreaded software, troubleshoot customer-reported issues, collaborate with distributed teams, and use AI technologies to improve workflows and decision-making. Top Skills: CC++CybersecurityEndpoint ProtectionLinuxmacOSMultithreadingNetworking ProtocolsSwiftWindows, CrowdStrike

• Bachelor’s degree in Cybersecurity, Information Security, Information Systems, Information Assurance, Computer Science, Engineering, Business Administration, or a related field.
• An industry professional certification such as CCNA Cyber Ops, CCNA Security, CEH, CFR, CompTIA Cloud+, CySA+, GCIA, GCIH, GICSP, SCYBER, Security+ CE, or SSCP.

Required Experience:

• 3 to 5 years of penetration testing experience.
• Demonstrated experience with Kali Linux.
• Demonstrated experience with penetration testing tools, including Nmap, Burp Suite, and Metasploit.
• Demonstrated ability to evaluate vulnerabilities, perform root cause analysis, and report findings using assessment methodologies such as NIST SP 800-115, PTES, ISSAF, and OWASP WSTG.
• Ability to explain and demonstrate technical findings clearly to system owners and engineers.
• Working knowledge of NIST SP 800-53 security controls.

Performs and leads penetration tests and vulnerability assessments of customer information systems. Identifies exploitable vulnerabilities, conducts root cause analysis, recommends remediations aligned with NIST SP 800-53, and presents findings to system owners and engineers. Maintains Red Cell infrastructure, develops or modifies testing tools, applies computer and network forensics, researches emerging vulnerabilities and countermeasures, and contributes to methodologies, deliverables, and performance metrics. The summary above was generated by AI, This position allows for 100% remote work. Remote work requires a high level of trust in our employees, and we strictly adhere to the details outlined in our Remote Work Policy below.

Required Clearance: Must be able to obtain and maintain a Public Trust clearance

Eligibility Requirements: U.S. citizenship is required to obtain the necessary clearance for this position., Valiant takes care of the people who support our customers, with real choices in coverage and real investment in your career. Eligible full-time employees receive:

• A choice of medical plans, from an affordable HSA option to a full-featured PPO, with generous company contributions
• Dental and vision coverage for you and your family
• Company-paid life, short-term disability, and long-term disability insurance
• Optional supplemental life, accident, and critical illness coverage to round out your protection
• 401(k) retirement plan with company match
• Paid time off that grows with your years of service, plus paid federal holidays
• Paid certifications, professional development, and the Valiant University training portal
• Flexible spending accounts and a wellness and fitness program
• Referral bonuses when you help us bring great people to Valiant

Benefit eligibility and plan details are subject to the terms of each plan and may change from time to time.

The anticipated salary range for this position is $115,000 to $125,000. This range reflects Valiant Solutions’ good-faith estimate of the base salary reasonably expected for this position upon hire, at the time of posting. The range has been established based on the scope of the role, market rates, and internal equity. Where a candidate falls within the posted range will depend on job-related factors, including relevant skills, experience, qualifications, achievements, education, geographic location, applicable security clearance requirements, additional corporate responsibilities, and other legitimate, non-discriminatory business considerations. The posted range does not guarantee an offer at any particular salary. In addition to base salary, this position includes the benefits described above., 40 Minutes Ago Remote or Hybrid 160K-260K Annually Senior level 160K-260K Annually Senior level Cloud * Computer Vision * Information Technology * Sales * Security * Cybersecurity Design, develop, and own kernel-mode and low-level user-mode components for CrowdStrike’s Windows Falcon sensor. Build endpoint detection and response capabilities, collaborate on cross-platform sensor architecture, lead design and code reviews, resolve crashes and performance issues, improve kernel testing infrastructure, and mentor engineers. The role requires deep C/C++, Windows internals, driver development, debugging, and experience delivering reliable systems software. Top Skills: Ai TechnologiesCC++Event Tracing For Windows (Etw)Kernel CallbacksKernel/User-Mode CommunicationLinuxmacOSMinifilter DriversWindbgWindows Driver DevelopmentWindows Filtering Platform (Wfp)Windows Kernel

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With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.

Key Facts About Colorado Tech

• Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
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• Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
• Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

Valiant Solutions is seeking a Penetration Tester (Junior) to join the Red Cell team supporting our government customer’s cybersecurity risk management program. In this role, you will perform and lead penetration tests of customer systems, identify exploitable vulnerabilities, and recommend remediations that satisfy mandated NIST SP 800-53 security controls. You will apply recognized assessment methodologies, including NIST SP 800-115, the Penetration Testing Execution Standard (PTES), and the OWASP Web Security Testing Guide (WSTG). You will also report and demonstrate your findings directly to system owners and engineers.

Named one of the Washington Business Journal’s Best Places to Work every year since 2014, Valiant is proud of our employee-centric culture and commitment to excellence. If you are interested in learning more about Valiant and this opportunity, we invite you to apply now!, Valiant Solutions delivers cybersecurity and IT services to federal civilian, defense, and national security customers nationwide. We support the full cyber lifecycle, from secure system design and accreditation through AI-enabled operations, threat emulation, and continuous improvement, across classified and unclassified environments. Our work is independently certified for quality and security, including CMMI, CMMC, and ISO certifications.

Valiant is a multi-year Washington Business Journal Best Places to Work winner, and our growth and cyber leadership have been recognized by Washington Technology, Northern Virginia Technology Council, and the Triangle Business Journal. We offer strong benefits, rewards for earning industry certifications, and room to grow your career as we grow. Headquartered in McLean, Virginia, our distributed workforce supports customers from coast to coast. We go where the stakes are highest, and the margin for error is zero. If you want meaningful work alongside talented professionals, apply today., Remote work necessitates a high level of trust in our employees. To ensure that employee performance does not suffer in a remote work environment, all employees who telecommute are expected to have a quiet and distraction-free workspace with adequate internet, dedicate their full attention and availability to their job duties during working hours, and maintain a schedule during core business hours that aligns with those of their coworkers and Valiant’s clients. In alignment with Valiant’s inclusive and engaging environment, cameras are encouraged and can be required to be on during virtual video conferences. Additionally, in alignment with the Office of the Inspector General’s effort to eliminate conflicting employment, all Valiant employees are required to disclose any current or future outside employment engagements. During onboarding and throughout employment, employees must disclose any current activities or intent to engage in outside employment or other professional activities and obtain written approval. Employees may not solicit or conduct any outside business during core business hours for Valiant Solutions and our clients.