**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