**MANTECH** seeks a highly experienced and mission-focused **Senior Software Engineer** to join our CNO team in **Hanover, MD.** As a Senior Software Engineer on our team, you will play a key role in developing advanced CNO capabilities that directly support national security. You’ll work in a collaborative environment focused on solving complex technical challenges in support of our customer’s most critical missions. **Responsibilities include but are not limited to:** + Design and develop new hardware- or software-based CNO capabilities + Independently contribute to the design, development, documentation, testing, and debugging of applications software and systems + Apply knowledge of security concepts and network technologies + Ensure software engineering standards are consistently met **Minimum Qualifications:** + High School Diploma and 11+ years of technical work experience, orBS Degree in a technical discipline and 7+ years of technical work experience + Experience in Python or C/C++ programming + Experience with troubleshooting and debugging complex systems + Experience with networking (TCP/IP) and socket-level programming **Preferred Qualifications:** + Experience developing CNO capabilities + Experience in software analysis or reverse engineering + Experience in low-level internals in one or more platforms (e.g., Windows, Unix, mobile, or network devices) + Experience with unit testing and test automation + Understanding of assembly programming concepts + Familiarity with Atlassian tools such as JIRA, Confluence, and Crucible **Clearance Requirements:** + Active/current TS/SCI with ability to obtain a polygraph is required **Physical Requirements:** + Must be able to remain in a stationary position 50% of the time ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.