Senior Java Engineer / Senior Software Engineer

CONCEPT SOLUTIONS LLC · Virginia beach, United States

Description

Concept Solutions, LLC (CS) is seeking an experienced

Senior Java Software Engineer

to support a mission-critical application modernization program for a Department of War (DoW) customer.
This initiative focuses on creating a unified platform that provides seamless access across multiple production applications through a single sign-on experience, a shared user interface, and a standardized approach to application integration.
The selected candidate will play a key role in sustaining existing applications while implementing enhancements that enable their integration into the modernized platform. This position requires strong enterprise Java development expertise, production application support experience, and the ability to work within secure, cloud-based environments.
Application Sustainment and Engineering
Maintain and support a production application built with Java Spring Boot, React, and PostgreSQL, containerized using AWS ECS/Fargate.
Manage application defects, security patches, and production releases while maintaining system reliability.
Implement application-side integrations with the modernization platform, including identity-provider trust, deep linking, redeem endpoints, and feed access.
Maintain operational runbooks and application sustainment baselines.
Participate in the Severity 1 on-call rotation to address critical production incidents.
7+ years of experience in enterprise Java development using Spring Boot.
~ Strong experience with SQL, PostgreSQL, and RESTful APIs.
~ Experience operating and supporting production applications in cloud environments.
~ Familiarity with formal change management processes and privileged-access security controls.
~ Current favorably adjudicated Tier 5 investigation or active Top Secret clearance.

Experience with React.
Experience with AWS ECS/Fargate and AWS GovCloud.
Experience integrating applications with Pega.
Location: Remote
Schedule: Full-time, 40 hours per week, Monday through Friday, with core hours from 9:00 a.m. Development Cycle: Two-week sprints, including a customer demonstration each sprint.
Travel: 0–10% within the Washington, DC metropolitan area.
Candidates must hold a current favorably adjudicated Tier 5 investigation or Top Secret clearance, or be eligible to obtain one. Government-furnished equipment is required for all access to Government environments.
We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors.
For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services.
Over two decades of experience across over $300 million in contract awards supporting critical FAA programs
Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies
We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting.
Concept Solutions is an Equal Opportunity Employer, and we value workplace diversity. We invite resumes from all interested parties and consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, sexual preference, personal appearance, family responsibility, the presence of a non-job-related medical condition or physical disability, matriculation, political affiliation, veteran status, or any other legally protected status. Concept Solutions is a VEVRAA federal contractor, and we request priority referral of veterans for available positions.