Cross-Domain Solutions (CDS) Engineer - Military veterans preferred

ManTech (


  full-time   employee

United States

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 Cross-Domain Solutions (CDS) Engineer to join our team in the Herndon, VA area.

The candidate shall support the project by providing expertise and support towards the design, implementation, development, and maintenance of the Cross-Domain Solution (CDS) components. Candidate should be able to work with a team of highly skilled individuals to ensure the secure and efficient data transfer from high to low and low to high. This role requires that the individual can produce a hardened solution that best fits mission needs. The candidate will travel to customer sites if required; will work with people to provide exemplary customer service in high-pressure situations. Responsibilities include engineering support throughout the life-cycle of the Cross-Domain Solution with an emphasis on planning, building, testing, release, and deployment.

Specific responsibilities include, but not are limited to:

  • Developing and maintaining a working knowledge of the customer's requirements for the team product and a working knowledge of how the product functions in the larger ecosystem.

  • Develop and maintain a working knowledge of the technologies in use by the team product while exploring alternative implementations and solutions.

  • Create, implement, test, document, and support feature and product capabilities and data processing methods that ensure highest levels of information system security.

  • Collaborate with Product Owners/Scrum Masters, team leads, and team members to ensure product capabilities that meet or exceed customer requirements.

  • Perform maintenance on existing products.

Basic Qualifications:

  • Requires Bachelor’s Degree and 7 or more years of relevant experience.
  • Experience designing, developing, deploying, and maintaining cross-domain solutions for Customers
  • Demonstrated proficiency in Linux
  • Strong experience in C, C++, Python, or Java 
  • Proficient in Object-Oriented design
  • Knowledge of networking protocols (TCP, UDP)
  • Experience in designing, developing, and documenting well defined RESTful APIs
  • Strong understanding of web protocols and standards like Http, WebSockets, JSON, REST, XML
  • Ability to identify technical problems, research and define solutions, and implement in a timely manner with minimal or no oversight
  • Experience resolving bugs and performance problems
  • Strong written and oral communication skills

Preferred Qualifications:

  • Experience with unit testing frameworks and debugging software
  • Experience with Systems Administration experience
  • Experience with Agile and SAFe methodologies
  • Experience with MQTT, AMQP and various IoT and IIoT protocols
  • Experience working on Cloud-Edge connectivity solutions and experience with AWS and Azure

Security Clearance Requirement:

  • Top Secret/SCI clearance required.

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.