Application Developer - Military veterans preferred

ManTech (


  full-time   employee

District of Columbia
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, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement. 


We take National Security seriously. We focus on strategic and unified work to strengthen the security, resiliency, and workforce of the cyber ecosphere. This is your opportunity to join a team that is making an impact on protecting National interests including state, local, tribal and territorial Governments and critical infrastructure. 


Currently, ManTech is seeking a motivated, mission and customer-oriented Application Developer to join our team in the Washington D.C. area.  


Responsibilities include but are not limited to: 

  • Designing, programming/developing, and modifying software systems, applications, and tools, both existing and potentially new in the future 

  • Analyzing user needs and software requirements to determine feasibility of design within time and cost constraints 

  • Researches, tests, builds, and coordinates the conversion and/or integration of new products based on client requirements. Designs and develops new software products or major enhancements to existing software. 

  • Addresses problems of systems integration, compatibility, and multiple platforms.  

  • Consults with project teams and end users to identify application requirements 

  • Assists in the evaluation and recommendation of application software packages, application integration and testing tools. 

  • Resolves problems with software and responds to suggestions for improvements and enhancements  

  • Participates in development of software user manuals 

  • Conducting testing of program and software applications to be sure they will produce the desired results and that instructions are correct 

  • Organizing and maintaining documentation of application development and subsequent revisions, so others can understand the program 

  • Collaborating with teammates, other service providers, vendors, and users to develop new programming methods 


Basic Qualifications: 

  • Bachelor’s degree in Computer Science, Systems Engineering, or Management Information Systems  

  • A minimum of (3) three years of relevant experience 

  • Strong Java programming/development skills and experience (e.g., Java, C#/or C++, JavaScript/HTML5 Framework (EXT/JS, Angular, React) 

  • Experience with Web services (e.g., WDSLs, schemas, XSDs, XML, REST API, JSON) 

  • Experience with HTML, CSS, JavaScript, and at least one modern front-end framework 

  • Experience working and interacting with different types of data stores (e.g., Oracle, Elasticsearch) 

  • Understanding of SQL and Elasticsearch 

  • Knowledge, skills and abilities in SAFe Agile processes and methods 

  • Strong ability to manage competing priorities and communication to multiple stakeholders 


 Preferred Qualifications: 

  • Master’s degree Computer Science  

  • A minimum of (1) one year of related experience 

  • Cloud experience 


Clearance Requirements: 

  • Must be a U.S. citizen 

  • Top Secret w/SCI 


Physical Requirements: 

  • Must be able to be in a stationary position more than 50% of the time 

  • Must be able to communicate, converse, and exchange information with peers and senior personnel 

  • Constantly operates a computer and other office productivity machinery, such as a computer 

  • 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 to access file cabinets, office machinery, etc.


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.