Secure our Nation, Ignite your Future ManTech is seeking a motivated, career and customer-oriented Application Developer to join our team in Chantilly, Va. 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. * Correcting errors by making the appropriate changes and then re-checking the program to ensure the desired result was produced. * 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 are able to understand the program. * Collaborating with teammates, other service providers, vendors, and users to develop new programming methods. Minimum Qualifications: * 2+ years of relevant Software/Information Technology experience * Strong Java programming/development experience * Experience with HTML, CSS, JavaScript, and at least one modern front-end framework such as Angular * Experience with Spring and ORM libraries such as Hibernate/JPA * Experience working and interacting with different types of data stores (e.g. Oracle, Elasticsearch) * Experience with RESTful services * High School Diploma or GED Preferred Qualifications: * Experience with Ext JS (v3 and v4), Groovy (v2), Grails (v2), and Bootstrap (v3+) * Understanding of SQL and Elasticsearch * Strong ability to manage competing priorities and communication to multiple stakeholders * Cloud experience, particularly AWS Clearance Requirements: * TS/SCI w/ Polygraph Physical Requirements: * Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. * The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc. * Constantly positions self to maintain computers in the lab, including under the desks and in the server closet. #LI-AA1 , #joinmantechd #joinmantechaa 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 http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click careers@mantech.com and provide your name and contact information.