Chantilly, Virginia

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 that leads the world in Mission, Cyber, and Technology Solutions. At ManTech International Corporation, you will help protect our national security while working on innovative projects that offer opportunities for advancement.

As an Expert Cyber Developer you will be responsible as part of a team of highly skilled professionals for designing, developing, testing and integration of a “from the ground up” new Microsoft on-premises Enterprise IT datacenter for supporting multiple DoD organizations.  This is an outstanding opportunity to design and build a new greenfield on-premise cloud solution that will eventually connect to commercial cloud providers.  This position offers great opportunities for technical experience and growth. 

This position is a hybrid role based in Chantilly, VA

Position Responsibilities:

  • Design and deploy a layered defense and zero trust architecture strategy, including but not limited to cyber network defense, boundary protection, continuous monitoring, audit, insider threat, and vulnerability management capabilities (i.e., malware detection; eDiscovery; threat intelligence; etc.)

  • Designing, developing, testing, and integrating security services for a Microsoft Azure based private cloud, on-premises Enterprise IT datacenter using Agile methodologies in accordance with best practices

  • Producing Infrastructure as Code (IaC) or Configuration as Code (CaC), delivering solutions with a code first approach with sufficient comments and structure

  • Developing Ansible Playbooks for application integration into multiple enterprise tenant enclaves

  • Participate in peer code reviews

  • Diagnosing and resolving complex performance, security, and/or technical challenges

  • Designing automated approaches to standardize the deployment and hardening of products delivered into enterprise systems

  • Create and maintain system technical documentation primarily as code to support RMF requirements

  • Interact with customers and independently research requirements from NIST, JSIG, and best practices which you will use to evaluate vendor products, analyze alternatives, and make recommendations to purchase hardware and software

  • Provide subject matter expertise in the area of security architecture and technologies

Basic Qualifications:

  • Bachelor’s Degree in Computer Science, Cybersecurity, Information Systems, or other related scientific or technical discipline is preferred. Work experience or industry certifications demonstrating technical proficiency may be substituted for education requirements

  • 12+ years of relevant experience

  • Minimum DoD 8570 IAT Level 2 certification required (CCNA Security, GICSP, GSEC, Sec+, CND, SSCP)

  • DoD 8570 Computing Environment certification within 6 months of hire

  • Proficiency in PowerShell, Bash, Python, YAML, JSON or Ansible for automation

  • Architecting, designing, engineering, integrating, configuring, and deploying COTS solutions

  • Experience with automation tools such as Ansible, Puppet, Chef and DevOps practices

  • Experience with the design and implementation of Zero Trust Architecture and related supporting third party products such as Appgate

Preferred Qualifications:

  • Extensive knowledge of Microsoft Azure, AWS, or Google Cloud platforms

  • GitHub Enterprise, GitLab, Azure DevOps or other code repositories experience

  • CI/CD pipeline experience

  • 10 years of experience architecting or engineering security services in Federal Government networks

  • Experience working within NIST 800-53 Protection Layer 3 environments

  • Experience designing and implementing cross domain solutions

  • Experience with automation tools such as Ansible, Terraform, Jenkins, Puppet, Chef and DevOps practices

  • Strong Azure Infrastructure experience

Clearance Requirements:

Active Top Secret clearance adjudicated within the past 6 years.  Candidate must be open to CI poly.

Physical Requirements:

  • Must be able to remain in a stationary position up to 75%

  • The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

  • The person in this position needs to occasionally move about inside the office.

  • The person in this position will need to be able to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

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.

Chantilly, Virginia

ManTech was founded in 1968 to provide advanced technological services to the United States government. We began with a single contract with the U.S. Navy to develop war-gaming models for the submarine community. Over the years, our government's technology needs have increased dramatically in scope and sophistication, and we have grown to meet that challenge.


For more than 4 decades, we kept a careful eye on where emerging technologies were taking the government, and we developed the resources to master those technologies—by staying close to our customers and anticipating their needs, hiring talented professionals to propel us into the future, and acquiring companies with proven capabilities.


Today, we are a multi-billion-dollar public company that provides the innovation, adaptability, and critical thinking our government needs for success in defense, intelligence, law enforcement, science, administration, health, and other fields—throughout the nation and in many countries throughout the world. We are now applying the lessons learned in the unforgiving arena of national security to help the private sector protect networks and critical information.

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