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# Software Engineer III - TACKLE

- **Company:** Epsilon Systems Solutions, Inc.
- **Location:** San Diego, CA, United States
- **Experience:** Experienced
- **Salary:** $115,000.0 - $165,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Microsoft Windows, Artificial Intelligence, Systems Engineering, Computer Engineering, Software Design Patterns, Linux, Distributed Systems, Python (Programming Language), Platform as a Service (PAAS), Scrum Methodology, Software Architecture, Software Engineering, Software Systems, Web Applications, Containerization, Information Technology, Programming Languages
- **Published:** October 31, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9281175/software-engineer-iii-tackle

## About the Role

Epsilon C5I (www.epsilonsystems.com/c5i), focused on software development and systems engineering for complex command, control, intelligence and combat systems, is seeking a Software Engineer III, with 4-8 years of experience, for work in San Diego, CA. Our engineering efforts provide the warfighter with common enterprise solutions to improve information sharing and combat effectiveness. If you have a passion for excellence in engineering and enjoy working on challenging projects in a fast-paced, team-oriented environment - read on!, * Bachelor of Science degree in Computer Science or related discipline (e.g. Software Engineering, Computer Engineering)

 * Four to eight (4-8) years of professional experience involving software development and design
 * Experience in designing and developing large-scale, distributed systems
 * Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams, gain consensus, and get things done.
 * Strong expertise in one or more programming languages (e.g., JavaScript, Java, Python)
 * In-depth knowledge of software engineering principles, design patterns, and best practices.
 * Experience working across multiple phases of the software development lifecycle, with demonstrated ability to independently develop and deliver software solutions.
 * Demonstrated experience leveraging AI-powered coding assistants to accelerate software development, improve productivity, and support efficient delivery of high-quality applications.
 * Proficient in working with various operating systems such as Windows and Linux.
 * Ability to obtain and maintain an Active DoD Secret Security Clearance
 * Pursuant to the various government contractual requirements, all applicants must be U.S. Citizens.

Preferred Qualifications:

 * Ability to Obtain and Maintain a DoD Top Secret Clearance with SCI Access, * Regular communication (hearing/speaking).
 * Noise conditions range from very quiet to very noisy.
 * Prolonged use of computer (typing/keyboarding).
 * Frequently required to sit for long periods of time, standing, and walking.
 * Ability to travel by car, air or other means of transportation, if required.

## Description

Our software team employs an Agile Scrum process to rapidly design, code, and integrate capabilities into a mature Platform as a Service (PaaS) solution. Work involves implementing new functionality, troubleshooting, and securing containers and container platforms. The ideal person would be security-focused and interested in solving practical software challenges, building modular web applications, and collaborating with a team to turn user needs into useful features., * Participate in the design, development, implementation, and integration of complex software systems onto an MLS (Multi-level Security) platform.

 * Collaborate with cross-functional teams to define and drive software architecture and design decisions.
 * Collaborate with developers and stakeholders to understand business requirements and translate them into technical solutions.
 * Design, develop, test, deploy, and maintain web-based and enterprise software applications.
 * Rapidly translate business requirements into functional applications, prototypes, and production-ready solutions.
 * Actively leverage AI-powered coding assistants to accelerate development, improve productivity, troubleshoot issues, and streamline repetitive development tasks.