Core Java Software Engineer - TS/SCI with Polygraph

General Dynamics Information Technology; Chantilly (VA); On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

401K with company match

Healthcare and wellness packages

Internal mobility program

Continuing education & certifications

Paid vacation & holidays

Job summary

General Dynamics Information Technology in Chantilly, VA is seeking a Core Java Software Engineer to help ensure today is safe and tomorrow is smarter. You will apply expert Core Java skills, work on REST APIs, and deploy on Tomcat in a Linux environment.

You will collaborate with security and operations teams, implement LDAP-based authentication, and write clean, well-documented code while contributing to enterprise IT initiatives.

Qualifications

• Expert-level Core Java development in a Linux environment.
• In-depth knowledge of Tomcat, MariaDB/MySQL, and REST APIs.
• Experience with LDAP authentication and PKI/infrastructure.

Responsibilities

• Develop Core Java applications across the stack.
• Design and implement secure REST APIs.
• Integrate with MariaDB/MySQL databases.
• Deploy and configure Apache Tomcat servers.
• Implement LDAP-based authentication/authorization.
• Collaborate with cross-functional teams and stakeholders.
• Maintain clean, well-documented code.

Skills

Core Java

Eclipse IDE

Java 17+

Tomcat

MariaDB/MySQL

REST API

LDAP

SSH/Putty

Linux

JSP/AJAX

JDBC

Git

PKI/OpenSSL

Web security

XML/JSON

Tools

Git/GitHub

Tomcat

Confluence

Job description

Seize your opportunity to make a personal impact as a Core Java Software Engineer supporting an information technology enterprise. At GDIT, people are our differentiator. As a Core Java Software Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Core Java Software Engineer joining our team.

• Expert-level knowledge of Core Java (NOT Spring Boot), Eclipse IDE v2026, Java 17 or later, JVM, JRE, and JDK concepts, JavaScript, AJAX, jQuery, JSP, Apache Tomcat 11 or later, Tomcat connector, MariaDB (MySQL) v10 or latest, HTML5, CSS, JSON/XML HTTP, HTTPS, REST API, SSH, PKI, OpenSSL, Putty, Linux and LDAP.
• Extensive experience with LDAP authentication and authorization, and custom LDAP-based solutions.
• Strong experience with SSH and Putty, and custom SSH-based tools and applications on Linux platform.
• Experience with Linux system administration and command-line tools.
• Experience w/ Java REST API development, and API secure requests using application certificates and scalability for user activity monitoring.
• Experienced w/ JDBC, DAO pattern and configuration using MariaDB (MySQL) and custom database tools and scripts – connection pooling without framework.
• Experience deploying applications on Apache Tomcat, configuring Tomcat connectors, and managing HTTPD (Apache HTTP Server).
• Experience w/ front-end development w/ JSP, AJAX, jQuery, JavaScript, HTML and CSS design for web presence and back-end development;
• Experienced writing Jakarta Servlet API, including servlet lifecycle, request and response handling, and session management.
• Experience w/ Java Base64 API, that encodes and decodes data, including its usage and limitations.
• Knowledge of Java Cryptography Architecture (JCA) and its APIs.
• Knowledge of encryption algorithms, such as AES, RSA and ECC and their usage in Java.
• Experience w/Quartz Job Scheduling Library using Core Java development.
• Experience w/ software version control tools (Git/GitHub) code repository;
• Knowledge of PKI infrastructure and secure data transmission, and custom PKI-based tools and applications.
• Knowledge of X.509 certificate handling, including certificate parsing, certificate validation and certificate chaining.
• Experienced in generating, managing, and storing key pairs using OpenSSL, and RSA, troubleshooting PKI-related issues, including key pair and certificate problems.
• Strong problem-solving skills and analytical thinking, attention to detail, and excellent communication and collaboration skills with technical and non-technical stakeholders.
• Ability to analyze user needs to determine technical requirements.
• Ability to write clean, maintainable, and well-documented code.
• Shows initiative and offers ideas for new products and improvements to existing interfaces.
• Actively keeps apprised of industry technological enhancements and changes.
• Location:Chantilly,VA (On Customer Site)

• Desired skills:
• Some experience integrating Python into web applications;
• Some experienceWriting Confluence plugins
• Familiar w/ Windows Active Directory Certificate Services (AD CS) – for issuing and managing key infrastructure (PKI) certificates
• US Citizenship Required

WHAT YOU’LL NEED TO SUCCEED:

GDIT IS YOUR PLACE:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you own your career
• Professional growth opportunities including paid education and certifications
• Cutting-edge technology you can learn from
• Rest and recharge with paid vacation and holidays

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