Expert CNO Developer

General information

Requisition #

R71560

Locations

USA-MD-Hanover

Posting Date

10/20/2026

Security Clearance Required

TS/SCI w/ Poly

Remote Type

Onsite

Time Type

Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!

MANTECH seeks a highly experienced and innovative Expert CNO Developer to join our team in Hanover, MD.

In this role, you will lead the development of mission-critical cyber capabilities and lead efforts in advanced Computer Network Operations (CNO) and drive technical excellence in CNO development. You'll be part of a dynamic team working on next-generation solutions that safeguard national security systems.

Responsibilities include but are not limited to:

• Designing, writing, and executing software test plans
• Writing scripts using Python, Perl, VB script, or Unix shell scripts
• Installing and configuring network security devices, such as firewalls and network Intrusion Detection Systems (IDS)
• Leading engineering teams in evaluating CNO solutions
• Replicating real world network and system scenarios in a lab environment

Minimum Qualifications:

• BS degree in a technical discipline and 12+ years of technical work experience, or MS Degree in a technical discipline and 10+ years of technical work experience, or High school diploma and 16+ years of technical work experience
• Experience in Python and C/C++ programming languages
• Experience with troubleshooting and debugging complex systems
• Experience with low-level system internals across one or more platforms (e.g., Windows, Unix, Mobile, or network devices)
• Experience with networking protocols (TCP/IP) and socket-level programming
• Experience with developing CNO capabilities

Preferred Qualifications:

• Experience with Ansible
• Experience with ELK/SPLUNK
• Experience with NiFi
• Experience with VMWARE
• Experience with Traffic generation tools
• Experience with Networking device system commands

Clearance Requirements:

• Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able to obtain another polygraph prior to start, if required

Physical Requirements:

• Must be able to remain in a stationary position at least 50% of the time.

The projected compensation range for this position is $179,300.00-$318,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.