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Senior Penetration Tester

Arlington, Virginia

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.

Overview of Opportunity 

Two Six Technologies is seeking a Senior Penetration Tester to join our growing Embedded & Cybersecurity team. In this role, you will lead and execute advanced penetration tests targeting a wide range of devices and systems, including networking equipment, embedded platforms, and critical infrastructure components. You’ll work alongside a multidisciplinary team of security researchers, exploit developers, and reverse engineers to uncover and communicate real-world vulnerabilities in complex environments.

What you will do:

  • Conduct advanced penetration testing and red team engagements targeting embedded systems, networking hardware, and proprietary platforms.
  • Identify, exploit, and document vulnerabilities across device firmware, communication protocols, and application layers.
  • Analyze and reverse engineer systems with limited or no documentation to uncover potential security issues.
  • Collaborate with hardware specialists, reverse engineers, and other researchers to develop comprehensive assessment strategies.
  • Develop custom tooling, proofs-of-concept, and automation frameworks to support defensive security operations.
  • Communicate through regular updates and written reports technical findings and risk assessments to both engineering teams and non-technical stakeholders.
  • Contribute to team effectiveness by sharing knowledge, mentoring peers, and improving internal testing methodologies.

What you will need (Basic Qualifications):

  • Active Top Secret Clearance, willing to obtain and maintain a TS/SCI clearance
  • Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience in offensive security and hardware/network exploitation).
  • 3+ years of experience performing penetration testing or red team operations, particularly in embedded systems or networking environments.
  • Familiarity with common embedded platforms, firmware extraction, and hardware debugging tools.
  • Proficiency in scripting or programming languages such as Python, Go, or Rust.
  • Hands-on experience with network protocol analysis (e.g., Wireshark, Scapy) and intercepting proxies for communication introspection.
  • Deep understanding of common vulnerability classes in hardware, firmware, and networked applications.
  • Comfort working in *nix or Windows environments, including fluency with command-line tools and scripting.

Nice to have (Preferred):

  • Familiarity with JTAG, UART, SPI, and other low-level interfaces for device analysis.
  • Background in reverse engineering binary applications or firmware.
  • Experience with mobile telecommunications systems or evaluating critical infrastructure components.
  • Contributions to open-source security tools or published research in technical security domains.

Security Clearance:

  • Active Top Secret Clearance willing to obtain and maintain a TS/SCI clearance

#LI-JK1

#LI-ONSITE

Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range

$119,646 - $179,469 USD

Looking for other great opportunities? Check out Two Six Technologies Opportunities for all our Company’s current openings! 

Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey!  This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions.  If you are undecided and would like to learn more about us and how we are contributing to essential missions, check out our  Two Six Technologies News  page!  We share information about the tech world around us and how we are making an impact!  Still have questions, no worries!  You can reach us at Contact Two Six Technologies. We are happy to connect and cover the information needed to assist you in reaching your next career milestone.

Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. 

If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to accommodations@twosixtech.com. Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.

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