Network-Savvy CNO Developer with Security Clearance

ARSIEM Corporation; Fort Meade (MD); On-site; USD 181,000 - 203,000; Full time

Job summary

ARSIEM Corporation is seeking a Network-Savvy CNO Developer to support a government client in Fort Meade, MD. The role focuses on C and CNO development for network devices within a SAS team, delivering secure, reliable capabilities.

The position requires extensive C development, reverse engineering experience, and cybersecurity/CNO expertise, with a TS/SCI clearance and US citizenship. On-site work in Fort Meade, MD, is expected.

Qualifications

• 10+ years of experience with C development and reverse engineering.
• 3 years of cybersecurity/CNO-specific development.
• Experience with CNO development on Network Devices.
• BS degree in Computer Science or Computer Engineering (or similar) with C development and reverse engineering within a CNO environment. MS may substitute for 2 years; PhD may substitute for 4 years.

Responsibilities

• Work as SAS member for the Network Device team to support development of new and existing capabilities.

Skills

C development

Reverse engineering

CNO development

Network device experience

Education

Bachelor's degree in Computer Science or Computer Engineering

Job description

About ARSIEM Corporation At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients. We provide support to multiple agencies across the United States Government. ARSIEM has an experienced workforce of qualified professionals committed to providing the best possible support. As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients. That means a career packed with opportunities to grow and the ability to have an impact on every client you work with. ARSIEM is currently looking for a Network-Savvy CNO Developer. This position will support one of our government clients in Fort Meade, MD.

Responsibilities

• Work as SAS member for the Network Device team to support development of new and existing capabilities.

Minimum Qualifications

• 10+ years of experience with C development and reverse engineering
• 3 years of cybersecurity/CNO-specific development
• Experience with CNO Development on Network Devices
• Candidates should have one of more of the following:
  • In-depth understanding of network protocols
  • Experience with network device appliances (routers, switches, firewalls)
  • Experience working in a Real Time Operating System environment
  • B.S. degree in Computer Science or Computer Engineering (or something extremely similar) with C development and Reverse Engineering within a CNO environment.
  • MS degree may substitute for 2 years of experience; a PhD may substitute for 4 years of experience.

$181,000 - $203,000 a year

The ARSIEM pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other laws.

Benefits

For an overview of our benefits, please visit our benefits tab. https://www.arsiem.com/careers/

Original Posting Date

2026-05-28

Clearance Requirement

This position requires an active TS/SCI with a polygraph. You must be a US Citizen for consideration.

ARSIEM is proud to be an Equal Opportunity and Affi ...

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans.

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