Senior Java Engineer - Remote, DoD Platform Modernization

CONCEPT SOLUTIONS LLC; Virginia Beach (VA); Remote; USD 170,000 - 180,000; Full time

Job summary

Concept Solutions, LLC is seeking an experienced Senior Java Software Engineer to support a mission-critical modernization program for a DoW customer. You will sustain existing applications built with Java Spring Boot and React, PostgreSQL, containerized on AWS ECS/Fargate, while integrating with the modernization platform.

The role requires strong enterprise Java development, production support in cloud environments, and active security clearance readiness.

Qualifications

• 7+ years in enterprise Java development with Spring Boot.
• Strong SQL and PostgreSQL experience; RESTful APIs.
• Experience operating and supporting production apps in cloud environments.
• Familiar with change management processes and privileged-access security controls.
• U.S. citizenship required; eligible for security clearance.

Responsibilities

• Sustain a production application built with Java Spring Boot, React, and PostgreSQL, containerized using AWS ECS/Fargate.
• Manage defects, security patches, and production releases to maintain reliability.
• Support API Gateway synchronization with a Pega-based status tracking system.
• Implement application integrations with the modernization platform (identity-provider trust, deep linking, redeem endpoints, feed access).
• Maintain runbooks and sustainment baselines.
• Participate in Severity 1 on-call rotation for critical incidents.
• Remediate security findings to maintain compliance and readiness.

Skills

Java

Spring Boot

SQL

PostgreSQL

RESTful APIs

Cloud environments

Production support

Security controls

Change management

Tools

AWS ECS/Fargate

AWS GovCloud

Pega

React

Job description

Concept Solutions, LLC is seeking an experienced Senior Java Software Engineer to support a mission-critical modernization program for a DoW customer. You will sustain existing applications built with Java Spring Boot and React, PostgreSQL, containerized on AWS ECS/Fargate, while integrating with the modernization platform.

The role requires strong enterprise Java development, production support in cloud environments, and active security clearance readiness.