S

SixGen

Adversarial emulation and cyber operations

Reverse Engineer

Full-TimePosted on 10/21/2026
$225k - $275k
Junior, Mid
Arlington County, Arlington, VA, USA
In PersonArlington, VA; five days onsite. Hybrid work may be possible depending on project, but full-time office attendance may be required.
CybersecurityOffensive Security & Testing
No H1B Sponsorship
US Citizenship, US Top Secret Clearance Required

About the job

Requirements
  • At least 3 years of relevant experience for the intermediate level, 6 years for the senior level, or 10 years for the principal level.
  • Experience reverse engineering compiled code using IDA Pro or Ghidra.
  • Proficiency in C, C++, and Python.
  • Experience developing code for Linux, Windows, or embedded operating systems.
  • Experience identifying vulnerabilities through reverse engineering.
  • Experience with hardware and software reverse engineering.
  • U.S. citizenship is required.
  • An active Top Secret clearance is required.
Responsibilities
  • Reverse engineer compiled code with IDA Pro or Ghidra from a variety of computing platforms.
  • Identify vulnerabilities through reverse engineering.
  • Develop C/C++ code in the kernel and userland on Linux, Windows, and embedded operating systems.
  • Develop Python code for server applications and processing binary data streams.
  • Reverse engineer embedded system hardware, including black-box analysis, firmware extraction, and debugging using GDB, JTAG, and equivalent tools.
  • Implement automation for testing tools, fuzzing, and using AI/ML for reverse engineering.
Desired Qualifications
  • Experience reverse engineering embedded systems.
  • Experience with black-box analysis and firmware extraction.
  • Experience debugging with GDB, JTAG, or equivalent tools.
  • Experience with fuzzing and automated testing.
  • Experience applying AI or machine learning to reverse-engineering workflows.
  • Background supporting IC, DoD, or DoJ customers.

About the company

SIXGEN provides cybersecurity services to government, defense, critical infrastructure, and commercial sectors, including adversarial emulation, incident response, penetration testing, reverse engineering, cyber training, and applied research. Its flagship product, RAVEN, is a DoD-certified, high-performance cyber operations platform that ships as a pre-configured computing node with AI-enabled threat detection and response. The company acts as a prime contractor for the Department of the Navy and as a subcontractor for major defense contractors, expanding through acquisitions to strengthen software infrastructure, electronic warfare, and reverse engineering capabilities. Its goal is to deliver mission-ready cyber solutions with speed and operational advantage as a non-traditional defense contractor owned by private equity, protecting critical assets and national security.

Company Size

51-200

Company Stage

Seed

Total Funding

$500K

Headquarters

Annapolis, Maryland

Founded

2014

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Simplify's Take

What believers are saying

  • The June 2026 Fiscal Service award delivered $11.995 million, ceiling $58.245 million.
  • SIXGEN added Scott Howell in June 2025 and Stu Shea in October 2025.
  • Kyrus added roughly 80 engineers, expanding reverse engineering and software development capacity.

What critics are saying

  • SIXGEN depends on federal buyers; public profiles show DoD concentration and tiny award volume.
  • Four acquisitions since November 2023 strain integration, culture, and margin discipline.
  • The June 2027 Fiscal Service recompete threatens a major revenue anchor and investor thesis.

What makes SixGen unique

  • Jack Wilmer, former DoD CISO, became CEO in April 2024.
  • Washington Harbour-backed SIXGEN completed Kyrus, Boldend, and Secure-EE acquisitions in 2024.
  • Board additions Andrew Boyd, Charles Moore, Scott Howell, and Stu Shea deepen federal access.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Disability Insurance
  • Health Savings Account/Flexible Spending Account
  • 401(k) Retirement Plan
  • Flexible and remote work policies for most positions
  • Flexible PTO and holiday schedule
  • Professional development reimbursement options available (training, certification, education, etc)

Growth & Insights and Company News

6 month growth

-2%

1 year growth

0%

2 year growth

-1%
Business Wire
Dec 3rd, 2024
Kyrus Tech and SIXGEN Join Forces to Create Preeminent Mid-Tier Across the Digital Battlespace

SIXGEN, a full-spectrum solutions provider across the digital battlespace to U.S. national security and critical infrastructure sectors, announced tod

Business Wire
Aug 7th, 2024
SIXGEN Acquires Boldend to Advance Innovation in US Defense and National Security

SIXGEN, a full-spectrum provider of cyber products, operations, and solutions to the U.S. national security and critical infrastructure sectors, annou

Technical.ly
Jul 9th, 2024
Baltimore Daily Roundup: Teaching Tech Leaders About Art; $1B For Free Med School At Johns Hopkins; Hospital Cyberattacks

What humanities can do for tech leaders. Rishi Jaitly, a Virginia Tech professor and advisor for OpenAI whose resume includes stints at some of the world’s biggest tech companies, sees the arts and related fields as crucial to the tech sector — and not opposed or tangential to it. “A world in which the humanities are more accessible and available,” Jaitly said, “is a world that’s more curious [and] more compassionate.”

Business Wire
Jul 3rd, 2024
SIXGEN Acquires Secure-EE

SIXGEN, a full-spectrum solutions provider of cybersecurity products and expertise to U.S. national intelligence, defense and critical infrastructure

Business Wire
May 13th, 2024
Sixgen Attracts Renowned Leaders To Board, Reinforcing Its Role At The Forefront Of Cyber And National Security

ANNAPOLIS, Md.--(BUSINESS WIRE)--In a significant endorsement of its leadership in cybersecurity across the digital battlespace, SIXGEN is proud to announce the appointment of two distinguished figures – Andrew Boyd and Lt. Gen. Charles Moore – to its board of directors. Mr. Boyd most recently served as the Director of the CIA’s Center for Cyber Intelligence, and Lt. Gen