Epsilon C5I ( is focused on software development and systems engineering for intelligence and combat systems. We are hiring for a Principal Software Engineer I with 12+ 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