**ManTech** seeks a motivated, and career oriented **Senior Front End Java Developer** to join our team in **Sterling, VA** . Front End Java Developers play a key leadership role in multidisciplinary teams providing crucial insight on front-end development, user interface, and user experience. Developers must also model behaviors supporting the acquisition of new skills and enhanced understanding and fostering the same attitude in their colleagues in both technical and mission understanding. **Responsibilities include but are not limited to:** + Perform development and maintenance of end-user focused, object-oriented, data-driven analytic applications to support CBP threat analysis and targeting. + Drive the development of CBP Common Framework-compliant UI/UX to promote clear, consistent, and simple to use interfaces for developed applications. Support building complementary job aids and tutorials for mission facing field users. + Perform server-side application integration, deployment and operations support + Develop new code, modify existing application code, conduct unit and system testing, and engage in rigorous documentation of developed and delivered application use cases, data flows, and functional operations. + Demonstrate a strong practical understanding of application-relevant cargo and passenger data used to support analytic application development, functionality and targeting end user (officer) operation. + Actively participate in formal and informal design reviews, solution sessions, and project milestone meetings as well as contribute to project document artifacts for presentation to both technical and non-technical audiences. + Collaborate and integrate with project portfolio teams as a matrixed resource to provide development expertise in collaboration. **Required Qualifications:** + HS Diploma/GED and 15-20 years, AS/AA and 13-18 years, BS/BA and 7-12 years, MS/MA/MBA and 5-9 years, PhD/Doctorate and 3-7 years + Hands on experience with a JavaScript UI development and framework such as ReactJS and NodeJS + Experience with React Redux, Front End Build Tools such as Webpack, Gulp, or Node Package Manager (NPM) + Demonstrated expertise with UI coding languages (e.g., HTML, CSS, JavaScript, JQuery, JSON, AJAX) + Hands on experience with web/application servers (e.g., Tomcat, WildFly, WebLogic) + Experience developing solutions via Amazon Web Services (e.g. AWS EC2, RDS, S3) + High level of self-motivation, desire to deliver stellar solutions and willingness to work in a distributed team environment. **Preferred Qualifications:** + Software Configuration Management (SCM) using Git. + Hands on experience with one or more relational database systems (e.g., Oracle, MySQL, Postgres) + Hands on experience with SQL + Familiarity with Atlassian tools such as Jira, BitBucket and Bamboo. + Experience executing continuous integration with Jenkins or Bamboo + Agile Scrum participation **Clearance Requirements:** + Must be a US Citizen and able to obtain and maintain a U.S. Customs and Border Protection (CBP) Background Investigation. **Physical Requirements:** + Must be able to remain in a stationary position 50% + The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. + 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. 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. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.