Application Developer

MANTECH; Chantilly (VA); On-site; USD 85,000 - 115,000; Full time

Job summary

MANTECH is looking for a motivated Application Developer to join our team in Chantilly, VA. This full-time position focuses on the development and enhancement support for existing applications and new development. The ideal candidate will have strong Java programming skills and experience with HTML, CSS, JavaScript, and preferably Angular.

Applicants must possess a High School Diploma/GED and 7+ years of IT experience, with knowledge of the Spring Framework, RESTful services, SQL, and Git. An active TS/SCI clearance is also required.

Qualifications

• 7+ years of experience in Information Technology field.
• Hands-on experience in Java programming and development.
• Experience with modern front-end frameworks, preferably Angular.

Responsibilities

• Design, program/develop, and modify software systems.
• Analyze user needs and software requirements.
• Collaborate with teammates and stakeholders for new features.
• Develop unit and integration tests.
• Resolve errors and troubleshoot production issues.
• Participate in code reviews.
• Deploy code using DevOps tools.

Skills

Java programming

HTML

CSS

JavaScript

Angular

Spring Framework

RESTful services

SQL

Hibernate/JPA

Git

Education

High School Diploma/GED

Job description

MANTECH seeks a motivated, career and customer-oriented Application Developer to join our team in Chantilly, VA.

The Application Developer will be dedicated full-time to development and enhancement support for existing applications as well as new development.

Responsibilities

• 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.
• Collaborating with teammates, other service providers, vendors, and users to develop new program features.
• Developing unit and integration tests, in addition to participating in functional and regression tests to ensure programs will produce the desired results and that instructions are correct.
• Correcting errors by making the appropriate changes and then re-checking the program to ensure the desired result was produced; also reviewing help desk messages periodically and working with other teams to troubleshoot and resolve production issues.
• Participating in code reviews by reviewing and incorporating feedback from teammates as well as providing feedback to others based on existing standards and recommended programming practices.
• Deploying code to development, test, and production environments using existing DevOps infrastructure/tools.

Minimum Qualifications

• High School Diploma/GED with 7+ years of experience in the Information Technology field.
• Strong Java programming/development skills, with hands‑on experience.
• Experience with HTML, CSS, JavaScript, and at least one modern front-end framework, preferably Angular.
• Experience with, or knowledge of, the Spring Framework and RESTful services and SQL, ORM libraries such as Hibernate/JPA.
• Experience with Git branching and merging within a team to manage source code.

Preferred Qualifications

• Strong ability to manage competing priorities and communication to multiple stakeholders.
• Experience with, or knowledge of, Elasticsearch.
• Experience with, or knowledge of, best practices for developing secure web applications.

Clearance Requirements

• An active TS/SCI with 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.
• Must be able to remain in a stationary position 50% of the time.