Senior Principal Software Engineer & Deputy Program Lead

Epsilon Systems Solutions, Inc; St. Louis (MO); On-site; USD 130,000 - 170,000; Full time

Job summary

Epsilon Systems Solutions, Inc. is seeking a Senior Principal Software Engineer / Deputy Program Manager for the CGSWeb ISR&T project in St. Louis, MO.

The role combines senior technical leadership with program management responsibilities on a DoD/IC-enabled program. Requirements include a Master’s in CS, 15+ years of related experience, strong Java/C++/JavaScript, Web Services, and a TS/SCI clearance. You will mentor teams, coordinate with government customers, and ensure timely,

Qualifications

• Master's degree in Computer Science or related discipline.
• 15+ years of progressively responsible experience in software design, development, test, and evaluation with technical leadership.
• Experience leading multidisciplinary teams on complex programs.
• Hands-on experience with Java, C++, JavaScript, React.js, and Web Services.
• AWS experience with network design, integration, analysis, and operation.
• Experience with SVN and Git version control.
• Windows Server administration and upgrade experience.
• Active TS/SCI clearance; U.S. citizenship required.

Responsibilities

• Design, develop, and implement web applications for a national ISR&T toolset with a large user base.
• Provide senior-level technical leadership for software architecture and development activities.
• Perform systems engineering on front-end and back-end applications.
• Write well-designed, testable, efficient code meeting requirements.
• Lead collaborations with users to troubleshoot defects and deploy fixes.
• Deliver projects on time with emphasis on quality and security.

Skills

Java

C++

JavaScript

React.js

Web Services

Git

SVN

Windows Server

Security+ / IAT 8570.01

Education

Master's degree in Computer Science

Tools

Apache Tomcat

Jenkins

Job description

Epsilon Systems Solutions, Inc. is seeking a Senior Principal Software Engineer / Deputy Program Manager for the CGSWeb ISR&T project in St. Louis, MO.

The role combines senior technical leadership with program management responsibilities on a DoD/IC-enabled program. Requirements include a Master’s in CS, 15+ years of related experience, strong Java/C++/JavaScript, Web Services, and a TS/SCI clearance. You will mentor teams, coordinate with government customers, and ensure timely,