CNO Engineer with Security Clearance

SixGen
Columbia, Maryland 21046 United States  View Map
Posted: May 30, 2026
  • Full Time
  • Federal Government
  • Summary

    Senior CNO Developer-Team Lead
    Job Type: Full-time
    Location: Columbia, MD. ONSITE and WFH
    Clearance Requirements: Must be a U.S. citizen minimum TS/SCI & CI POLY clearance
    Years of Experience: 5+ years

    Working with Kyrus/SIXGEN
    Kyrus/SIXGEN is committed to solving our customer's hardest problems with eagerness, effectiveness, and efficiency. We reject the status quo and constantly look for new ways to push the boundaries in our field. As a Security Engineer, you'll work in a unique position at the intersection of software development, binary and network protocol reverse engineering, and large-scale data analysis.

    Kyrus/SIXGEN recognizes that a company is nothing without well-cared for employees. We cultivate an encouraging and innovative workplace environment and give employees flexibility to work on their terms. We offer industry-leading benefits, including • 100% Employer-funded health, dental, vision, and life insurance • Flexible Leave Policy (Need Vacation - Take It!) • Flexible hours and opportunities to work from home • 4% 401(k) contribution, vested immediately • Reimbursements for training events, gym memberships, cell phone and internet bills, and lunches with coworkers • Continuous training and certification allowance

    Why You Matter
    You'll provide meaningful support to our federal customers. You will use your knowledge of Windows/Linux internals to create innovative kernel and userland tools across several versions of Windows/Linux. Your commitment to our customer's missions, curiosity, and attention to detail will make you a valuable addition to the team.

    As a CNO Developer, we need you to • Write custom tools in Python and C • Exhibit a strong understanding of kernel and userland APIs (e.g., Win32) and development • Understand common lateral movement techniques (e.g., process injection) • Be proficient using WinDbg to debug projects and aid in research • Be familiar with Visual Studio and common development tools • Contribute across projects and disciplines; we are a small company and expect that you will grow into adjacent technical areas as you further your career

    Who You Are
    To you, every new app is a puzzle to be explored. You are an accomplished professional with • A bachelor's degree in computer science, computer engineering, cyber security, or other technical degree or equivalent work experience • Knowledge of standard TCP/IP protocols, experience with Wireshark or comparable tools • Knowledge of industry standard cryptographic primitives • Experience developing software with Python and/or C is desirable

    For more information, please reach out to our Human Strategist Amy Maxwell: We embrace people of all backgrounds. We are an equal opportunity employer.
  • Job Description

    Senior CNO Developer-Team Lead
    Job Type: Full-time
    Location: Columbia, MD. ONSITE and WFH
    Clearance Requirements: Must be a U.S. citizen minimum TS/SCI & CI POLY clearance
    Years of Experience: 5+ years

    Working with Kyrus/SIXGEN
    Kyrus/SIXGEN is committed to solving our customer's hardest problems with eagerness, effectiveness, and efficiency. We reject the status quo and constantly look for new ways to push the boundaries in our field. As a Security Engineer, you'll work in a unique position at the intersection of software development, binary and network protocol reverse engineering, and large-scale data analysis.

    Kyrus/SIXGEN recognizes that a company is nothing without well-cared for employees. We cultivate an encouraging and innovative workplace environment and give employees flexibility to work on their terms. We offer industry-leading benefits, including • 100% Employer-funded health, dental, vision, and life insurance • Flexible Leave Policy (Need Vacation - Take It!) • Flexible hours and opportunities to work from home • 4% 401(k) contribution, vested immediately • Reimbursements for training events, gym memberships, cell phone and internet bills, and lunches with coworkers • Continuous training and certification allowance

    Why You Matter
    You'll provide meaningful support to our federal customers. You will use your knowledge of Windows/Linux internals to create innovative kernel and userland tools across several versions of Windows/Linux. Your commitment to our customer's missions, curiosity, and attention to detail will make you a valuable addition to the team.

    As a CNO Developer, we need you to • Write custom tools in Python and C • Exhibit a strong understanding of kernel and userland APIs (e.g., Win32) and development • Understand common lateral movement techniques (e.g., process injection) • Be proficient using WinDbg to debug projects and aid in research • Be familiar with Visual Studio and common development tools • Contribute across projects and disciplines; we are a small company and expect that you will grow into adjacent technical areas as you further your career

    Who You Are
    To you, every new app is a puzzle to be explored. You are an accomplished professional with • A bachelor's degree in computer science, computer engineering, cyber security, or other technical degree or equivalent work experience • Knowledge of standard TCP/IP protocols, experience with Wireshark or comparable tools • Knowledge of industry standard cryptographic primitives • Experience developing software with Python and/or C is desirable

    For more information, please reach out to our Human Strategist Amy Maxwell: We embrace people of all backgrounds. We are an equal opportunity employer.
  • ABOUT THE COMPANY

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    Explore positions across a wide range of fields and take the first step toward a rewarding future in public service.

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