Mobile CNO Developer 3 with Security Clearance

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 Mobile CNO Developer 3 .

The position will support one of our Government clients in Annapolis Junction, MD. Responsibilities * Modernize Mobile CNO capabilities, to include designing, developing, and testing, in support of the Customer's mission requirements. Minimum Qualifications * Bachelor's degree and six (6) years of experience OR minimum ten (10) years of experience in a relevant field.

• Minimum eight (8) years of experience programming in Assembly, C, C++, Java, Perl, and/or Python. • Minimum seven (7) years of experience developing in one (1) or more of the following: Windows applications using Visual Studio or .NET environments; UNIX applications using make files or comparable build environments. • Minimum six (6) years of experience with programming CNO tools and techniques.
• Minimum five (5) years of experience managing and supervising teams in support of the Government CNO capability development. • Minimum five (5) years of experience programming CNO tools for the US Government. • Minimum four (4) years of experience in programming techniques to evade host and/or network-based intrusion detection systems.
• Minimum four (4) years of experience in network sockets programming, developing packet-level programs: expert packet-level understanding of IP, TCP, and application-level protocols • Expert ability in UNIX kernel internals and low-level Windows internals: • OS runtime linker/loader • Object file formats (e.g., PE, COFF, ELF) • File system internals (e.g., NTFS, ext2, btrfs) • OS-specific mandatory and discretionary access control mechanisms • Process and thread APIs and data structures. $163,000 - $183,000 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: 2025-08-06 Clearance Requirement : This position requires an active TS/SCI with a polygraph. You must be a U.S.

citizen for consideration. Candidate Referral : Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects.

The bonus for this position is $10,000, and the referrer is eligible to receive the sum for any applicant we place within 12 months of referral. The bonus is paid after the referred employee reaches 6 months of employment. ARSIEM is proud to be an Equal Opportunity and Affirmative Action Employer.

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. These tools assist our recruitment team but do not replace human judgment.

Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.