Application Developer Expert- Hybrid - 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 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 Application Developer Expert 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:

  • Provide Business application development and delivery using enterprise technologies, platforms, and tools, such as Microsoft Azure Cloud Services, SharePoint, and other Web application support

  • Responsible for analysis, design, development, testing, deployment and documentation of Web-based application systems

  • Extending SharePoint functionality with forms, web parts, and application technologies.

  • Testing and debugging code.

  • Reviewing website interface and software stability.

  • Supporting application updates and production releases on multiple IT systems

  • Conducting system testing with customer to make sure that requirements have been met and application products are understandable and easy to use

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 with programming in SharePoint and related web technologies

  • Experience programming in modern languages including JavaScript, Python, C#, CSS, HTML, XML, JSON, Angular, or React

  • Experience with Application architecture and systems engineering principles, including services-oriented architecture and best practice application design patterns

  • Agile development experience with Scrum and Kanban, application security, developing system requirements, system design artifacts and models, design documentation and development in Cloud platforms

Preferred Qualifications:

  • 5 years SharePoint/web design Experience

  • Strong knowledge and understanding in SharePoint 2016/2019

  • Experience delivering microservices in a containerized service model

  • Familiarity with multiple hosting platforms, such as: Windows, Linux, Azure, and Amazon cloud computing platforms

  • Experience using DevOps concepts and tools, such as: GitHub, JIRA, Maven, Jenkins, Chef, Ansible, and Docker

  • Experience in environments implementing RMF and NIST 800-53 security controls

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.