Senior CNO Developer

SixGen, Inc.; Maryland; Hybrid; USD 100,000 - 130,000; Full time

Benefits offered by this job

Employer-paid health insurance

401(k) with 4% employer contribution

Professional development reimbursement

Flexible PTO and holiday schedule

Job summary

SixGen, Inc. is actively seeking a Senior CNO Developer to provide embedded support and develop cyber capabilities in Annapolis Junction, MD. Candidates should have extensive experience in software engineering, particularly in C/C++ and Python, and be proficient in both Windows and Linux platforms.

This role offers a competitive compensation package, including full health coverage, a 401(k) with employer contribution, and flexible work policies. SixGen is committed to creating an inclusive diversity-driven workplace.

Qualifications

• 12+ years of experience with a Bachelor's or 10+ years with a Master's.
• Experience supporting software development and vulnerability analysis.
• Active TS/SCI clearance with CI Polygraph (or ability to obtain).

Responsibilities

• Provide embedded operations support and capability integration.
• Design, develop, test, and debug software components.
• Document technical findings and present results to stakeholders.
• Conduct independent research into software and device vulnerabilities.
• Collaborate with teams to develop advanced CNO tools.

Skills

C/C++ programming

Python programming

Windows operating system proficiency

Linux operating system proficiency

Reverse engineering

Vulnerability analysis

Cybersecurity knowledge

Assembly language experience

DoD 8570/8140 IAT Level II certification

Education

Bachelor's degree in a related discipline

Master's degree in a related discipline

Job description

SIXGEN’s mission is to deliver agile, mission‑ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting‑edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever‑evolving digital landscape.

Position Overview

Position: Senior CNO Developer

Location: Annapolis Junction, MD

Clearance Requirement: TS/SCI with CI Poly (or ability to obtain prior to starting)

What You’ll Do

SIXGEN is actively seeking candidates to provide embedded operational support, develop advanced cyber capabilities, and deliver mission‑focused software solutions in support of critical customer operations. This role combines software engineering, rapid prototyping, vulnerability research, and close collaboration with mission partners to develop and integrate cutting‑edge cyber capabilities.

Responsibilities include:

• Provide embedded operations support, capability integration, and rapid prototyping in support of customer missions.
• Design, develop, test, and debug software components, modules, and applications to meet mission requirements and development schedules.
• Adhere to software build and release schedules while documenting technical findings and presenting results to stakeholders.
• Develop software prototype demonstrations and conduct independent research into software and device vulnerabilities.
• Collaborate with headquarters teams and local customers to develop, integrate, and enhance advanced Cyber Network Operations (CNO) tools.
• Identify operational risks, manage competing priorities, and support mission execution in fast‑paced operational environments.

Technology proficiency includes:

• Bachelor's degree in a related discipline with 12+ years of experience, or Master’s degree with 10+ years of experience
• Proficiency with Windows and Linux operating systems
• Strong programming skills in C/C++ and Python
• Assembly language experience (any platform/processor)
• Experience supporting software development, reverse engineering, and vulnerability analysis
• Experience with two or more of the following platforms: Linux, Windows, Mobile
• Knowledge of cybersecurity, AI/ML, cloud computing, or full‑stack development
• Ability to manage competing priorities and identify operational risks in mission environments
• Active TS/SCI clearance with CI Polygraph (or ability to obtain prior to starting)
• DoD 8570/8140 IAT Level II certification (CySA+, GICSP, GSEC, or SSCP) preferred
• Experience supporting USCYBERCOM, NSA, DoD cyber operations, or similar mission environments preferred

Compensation & Benefits

SIXGEN offers a competitive executive compensation package, designed to reflect the outsized impact and enterprise value creation expected of this role. The final package will be determined based on experience, qualifications, and demonstrated ability to lead strategic growth.

Additionally, SIXGEN offers top‑tier benefits for full‑time employees, including:

• Employer‑paid health insurance premiums (medical, dental, vision) for you and your family
• Employer‑paid short/long term disability insurance and basic life/AD&D insurance
• 401(k) with a 4% employer contribution
• Professional development reimbursement options available (training, certification, education, etc.)
• Flexible and remote work policies for most positions
• Flexible PTO and holiday schedule

SIXGEN is an Equal Opportunity Employer. We ensure that all applicants are considered for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, age, marital status, ancestry, projected veteran status, or any other protected group or class.

We are committed to fostering an inclusive culture that values diversity in our people, reflecting the communities we serve and our customer base. We strive to attract and retain a diverse talent pool and create an environment where everyone is empowered to be their authentic selves at work.