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Cimarron Software Services Inc Logo

Software Engineer

Cimarron Software Services Inc

Salary not specified
Nov 8, 2025
Saint Charles, MO, US
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Cimarron is seeking real-time Software Engineers to support an advanced aerospace development effort for the Phantom Works program, focusing on next-generation technologies for defense and flight systems. The role involves designing and developing Vehicle Management System (VMS) software for flight and subsystem control.

Requirements

  • 5 or more years of experience with C/C++.
  • 5 or more years of experience designing and developing software for both real-time and non-real-time systems.
  • 5 or more years of experience with the software development lifecycle (SDLC).
  • 3 or more years of safety-critical software development experience.
  • Experience with LOR-1, LOR-2 or DAL-A, DAL-B.
  • Familiarity with MIL-HDBK-516C, MIL-STD-882E, and JSSSEH, DO-178C.
  • Experience developing embedded real-time software.

Responsibilities

  • Develop, document, and maintain architectures, requirements, algorithms, interfaces, and designs for software systems.
  • Develop and maintain code, integrating software components into a fully functional software system.
  • Create and execute test plans and procedures to verify that software meets all system requirements.
  • Lead and mentor other team members on software engineering principles, design reviews, and process improvements.
  • Support the generation and maintenance of software processes, tools, and metrics.
  • Serve as a subject matter expert for real-time software design, safety-critical systems, and software certification processes.
  • Collaborate with multi-disciplinary teams to deliver innovative, high-quality software solutions.

Other

  • Due to facility security requirements, only U.S. citizens are eligible for consideration at this time.
  • Ability to obtain a Secret Clearance in a reasonable timeframe.
  • 15 or more years of related experience.
  • High School diploma or equivalent.
  • Active Secret Clearance.