Core Java Software Engineer - TS/SCI with Polygraph

General Dynamics Information Technology; Chantilly (VA); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

401K with company match

Health and wellness packages

Internal mobility support

Education and certifications paid for

Cutting-edge technology access

Paid vacation and holidays

Job summary

General Dynamics Information Technology is seeking a Core Java Software Engineer to develop and maintain enterprise-grade software on a customer site in Chantilly, VA. The role emphasizes Java 17+ and REST API development, with strong involvement in security and PKI infrastructure.

You will work on Linux-based deployments, Tomcat integrations, and database connectivity using MariaDB/MySQL, while collaborating across technical teams to deliver scalable, secure solutions.

Qualifications

• Expert-level Core Java and related web technologies.
• Experience with LDAP authentication and PKI tools.
• Strong knowledge of Tomcat and MySQL/MariaDB integration.

Responsibilities

• Develop and maintain Core Java applications and REST APIs.
• Ensure security with PKI, OpenSSL, and certificate management.
• Collaborate with front-end and back-end teams for scalable solutions.

Skills

Core Java

Eclipse IDE

Java 17+

REST API development

Linux system administration

JSP/AJAX/jQuery

Tomcat 11

MariaDB/MySQL

LDAP authentication

PKI/OpenSSL

SSH/Putty

Tools

Git/GitHub

Tomcat configuration

MariaDB tooling

OpenSSL tooling

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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