CNO Developer, Sr - Military veterans preferred

ManTech (


  full-time   employee

United States

Where applicable, confirmation that you meet customer requirements for facility access which may include proof of vaccination and/or attestation and testing, unless an accommodation has been approved.

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first.  At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented Software Engineer to join our team in Fort Meade MD area.

Responsibilities include, but are not limited to:

  • Designing Software and developing CO capabilities in C, C++, Python, Java, etc.
  • Software debugging
  • Creating and/or upgrading techniques and technologies to evade detection
  • Evaluating and re-engineering acquired tools
  • Programming for multiple operations systems (e.g., Windows, Linux, Solaris, and network devices)
  • Software reverse engineering across architectures
  • Network programming
  • Creatin and/or maintaining software build environments
  • Writing users’ manuals and the required documents of release process
  • Writing and executing test plans for various phases of testing, including functionality testing, integration testing, and Personal security product (PSP testing
  • Creating and maintaining automated test harnesses and test scripts
  • Conducting integration testing to ensure compatibility with other tools

Basic Qualifications:

  • Bachelor of Science in Computer Science or related discipline
  • Minimum of 5 years of experience development/exploitation experience

Preferred Qualifications:

  • Ability to manage projects and consolidate technical reports
  • Competence in understanding, prioritizing, and delegating requirements
  • Proficiency in C, C++, python
  • Software and hardware reverse engineering, network stack, x86 assembly
  • Familiarity with a disassembler such as IDA proc
  • Strong understanding of network protocol analysis to include TCP/IP, DHCP, FTP, HTTP/S, SSH
  • Experience briefing high ranking personnel

Security Clearance Requirements:

  • Be a United States Citizen
  • Possess a Single Scope Background Investigation (SSBI) that is current within the last five (5) years and will remain in scope for 3 months after anticipated reward
  • Possess a current DOD TS clearance
  • Possess eligibility for access to a TS/SCI
  • Be able to successfully pass a Counterintelligence (CI) polygraph examination

Physical Requirements:

  • Must be able to remain in a stationary position 50%
  • Capable of operating a computer and other office productivity machinery
  • Frequently communicates with co-workers, management, and customers, which may involve delivering presentations

#LI: DU1

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

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 because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access as a result of your disability. To request an accommodation please click and provide your name and contact information.