Application Developer

MANTECH; Chantilly (VA); On-site; USD 90,000 - 120,000; Full time

Job summary

MANTECH seeks an Application Developer to join our Chantilly, VA team. This full-time role will focus on developing and enhancing existing applications as well as new software components, collaborating across teams to deliver features and fixes.

The ideal candidate will bring strong Java, front-end skills, and experience with Spring/REST and SQL, plus Git workflows and DevOps deployment support. Responsibilities include designing and coding software, testing, debugging production issues, and

Qualifications

• High School Diploma or GED with 7+ years in IT; relevant security clearance may apply.
• Strong Java development skills with hands-on experience and modern frontend basics.
• Experience with Angular, Spring, REST, SQL, and ORM (Hibernate/JPA); Git used in teamwork.

Responsibilities

• Design, develop, and modify software systems and tools, existing and new.
• Analyze user needs and feasibility within time and cost constraints.
• Collaborate with teammates, vendors, and users to add new features.
• Develop unit/integration tests and participate in functional/regression tests.
• Fix defects, review production issues, and support deployments via DevOps.
• Participate in code reviews and apply feedback per standards.
• Deploy code to development, test, and production environments.

Skills

Java development

HTML/CSS/JavaScript

Angular

Spring Framework

RESTful services

SQL / Hibernate

Git

Education

High School Diploma/GED with 7+ years IT experience

Tools

Elasticsearch

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 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
• 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. As well as, 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