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Principal

Senior Principal Cybersecurity Researcher

Confirmed live in the last 24 hours

Two Six Technologies

Two Six Technologies

Arlington, Virginia
On-site
Posted April 20, 2026

Job Description

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 actively seeking a Senior Principal Cybersecurity Researcher to join our Trusted Electronics & Effects team. The team comprises intellectual individuals passionate about reverse engineering, vulnerability research, and low-level programming. The team is growing and looking for someone with an advanced technical background who has an understanding of how to solve complex challenges and inspire creativity to address a wide range of difficult problems. If you have a passion for uncovering deep-seated software flaws and developing innovative mitigation strategies, our team wants to talk to you!

What you will do 

  • Direct the planning and execution of high-visibility, mission-critical programs, providing expert technical leadership and innovation in reverse engineering (RE) and vulnerability research (VR).
  • Tackle complex problems with no known solutions, demonstrating a high degree of creativity while mentoring a team of technical experts to foster growth and knowledge-sharing.
  • Author authoritative technical reports, white papers, and proposals that clearly convey research findings and cybersecurity solutions to both technical and business stakeholders.
  • Exert a leadership presence across the company, contributing to strategy development and ensuring customer satisfaction by delivering cutting-edge solutions aligned with national security requirements.

What you will need (basic qualifications)

  • Demonstrated expertise in advanced cybersecurity research concepts typically acquired in a similar technical role.
  • Expert-level proficiency in two or more of the following: low-level programming (C/C++, Assembly) and the use of industry-standard disassemblers and decompilers, binary re-hosting frameworks to enable dynamic analysis, and building custom greybox/blackbox fuzzing harnesses.
  • Proven experience in vulnerability research (VR), including attack surface triage, identifying vulnerabilities, and developing proof-of-concept exploits to demonstrate security impact.
  • Extensive experience in technical mentorship and training, with a history of providing thorough solutions to complex problems and guiding less experienced team members.
  • Experience leading complex technical projects in reverse engineering/vulnerability research (RE/VR) or R&D for National Security customers.
  • Experience delivering high‑quality technical documentation—such as vulnerability research and findings, industry white papers, and competitive proposals—that distills complex cybersecurity concepts for diverse audiences.
  • Experience in a client-facing technical role, demonstrating strong communication and stakeholder management skills.
  • Active Top Secret clearance and willingness to obtain and maintain an SCI clearance.

Nice to have (preferred)

  • Master’s or PhD in Computer Science, Engineering, or a related field.
  • Familiarity with embedded systems binary reverse engineering (e.g., ARM/MIPS/PPC arch, RTOS, Linux, Baremetal) or cryptographic design principles.
  • Experience in trusted computing design and implementation principles.
  • Experience with digital signals (e.g., UART, JTAG, SPI, I2C) or network protocol analysis.
  • Experience with accelerated RE/VR tools that speed up discovery, analysis, and validation.
  • Recognized standing within the external technical community, including experience in publishing articles or speaking at external engagements.

Security Clearance:

  • Active Top Secret clearance and willingness to obtain and maintain an SCI clearance.

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Two Six Technologies is committed to providing competitive and comprehensive compensation packages tha

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