Senior Software Engineer I - TAF

Epsilon Systems Solutions, Inc.
San Diego, California, United StatesFull-time$130,000–$170,000Posted Sep 18, 2026

About the role

Epsilon C5I (www.epsilonsystems.com/c5i) is focused on software development and systems engineering for intelligence and combat systems. We are hiring for a Senior Software Engineer I with 6+ years of experience to join our team in San Diego. Our software teams employ an Agile/Scrum process to rapidly design, code, and integrate capabilities into mature solutions. Our primary end users are focused on the safety and security of Navy and other DoD personnel.

Summary: Work on a team developing cutting-edge technology to support DevOps testing environments for integrating Commercial and Government Off the Shelf (COTS/GOTS) technologies. You will help design and develop features and capabilities for a software test automation framework, implement and maintain automated test procedures, as well as build and maintain CI/CD infrastructure.

Duties & Responsibilities

Work within an AGILE software development and integration environment

Create and enhance automation framework using Python, Robot Framework, and common OSS tools and technologies to automate system health checks, APIs, functional tests, and verification and validation of various system capabilities

Implements re-usable plug-and-play components to enhance automation framework capabilities

Convert manual test procedures into automated test suites. Investigate and develop additional automated tests to extend the scope of program testing and find bugs, configuration problems, and other system degradation issues quicker

Provide test framework user support through tutorials, demos, forum activity, documentation, and best practices development

Required Qualifications

Bachelor’s Degree in Computer Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience

Six (6+) or more years of software engineering experience

Experience using Git as a source code repository tool

Strong interpersonal skills, telephone etiquette, and professional demeanor

Excellent oral and written communication skills

Effective team player with highly proficient customer service skills

Must be able to obtain and maintain an active DoD Secret Clearance

Pursuant to the various government contractual requirements, all applicants must be U.S. Citizens

Preferred Qualifications

An Active DoD Secret or Top Secret Clearance with SCI Access

CompTIA Security+

Pay Range

The pay range for this role is $130,000 to $170,000 annually. This is a reasonable estimate for this role. Individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

ADA Notations

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, stand, walk, and may occasionally lift and move at least 25 pounds

Ability to travel by car, air or other means of transportation, if required

Epsilon Systems Solutions, Inc. is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

Responsibilities

  • Work within an AGILE software development and integration environment
  • Create and enhance automation framework using Python, Robot Framework, and common OSS tools and technologies
  • Implement re-usable plug-and-play components to enhance automation framework capabilities
  • Convert manual test procedures into automated test suites
  • Provide test framework user support through tutorials, demos, forum activity, documentation, and best practices development

Qualifications

  • Bachelor’s Degree in Computer Science, Engineering or a related technical discipline, or equivalent experience
  • Six (6+) or more years of software engineering experience
  • Experience using Git as a source code repository tool
  • Strong interpersonal skills and professional demeanor
  • Excellent oral and written communication skills
  • Effective team player with customer service skills
  • Must be able to obtain and maintain an active DoD Secret Clearance
  • U.S. Citizenship required

Skills mentioned

PythonAutomationSoftware TestingAPI TestingIntegration TestingEnd-to-End TestingDebuggingGitCI/CDDevOps

About Epsilon Systems Solutions, Inc.

Epsilon Systems is a 100% employee-owned professional and technical services company founded in 1998 and headquartered in San Diego. We are dedicated to delivering high-quality products and services to defense and commercial customers worldwide, including the Department of Defense, Department of Energy, Department of the Interior, and Department of Homeland Security. Our sustained growth in size, capability, and reputation reflects our focus on customer success, our employees’ expertise, and the strength of our management team. Our business units: - Modernization & Engineering Sector: A premier NAVSEA-certified Alteration Installation Team (AIT) provider to the U.S. Navy, offering ship alteration installations, repair, technical services, and logistics support for NAVSEA, NAVAIR, Regional Maintenance Centers, and Military Sealift Command. - Ship Repair Sector: Offers comprehensive marine engineering, assessment, maintenance, and ship repair services for all classes of U.S. Navy ships. We provide the capacity and technical expertise to meet any shipboard repair or maintenance needs. - Epsilon C5I, Inc.: Specializes in Command, Control, Communications, Computers, Combat Systems, and Intelligence (C5I) support. Our capabilities include solutions for software and systems engineering, signal intelligence, cryptologic programs, and cybersecurity. - Advanced Products (AP): Provides design, build-to-print, assembly, testing, and integration for electrical, mechanical, and electronic systems for the U.S. Navy, foreign military sales, and commercial customers. - Technology Solutions: Develops systems for operational readiness and nuclear operations. Our Epsilon XR team specializes in virtual, augmented, and mixed reality training, simulations, and e-learning. - Mission Services: Provides secure communications, satellite systems, network operations, environmental management, fleet technical assistance, and logistics support for U.S. Navy operations.

Defense and Space Manufacturing501-1,000 employeesSan Diego, California