Quest Defense Systems & Solutions, Inc. is looking for a Senior Software Engineer to build foundational software components for next-generation avionics systems. You will be part of the Core Services & Libraries (CS&L) team, responsible for developing the shared libraries, I/O frameworks, and partitioned services that power multiple applications.

What You'll Do

Abstract and consolidate core functions into reusable libraries and frameworks.
Extract existing functionality from application code and refactor for shared use.
Design and implement an I/O framework supporting multiple protocols and data interfaces.
Define and maintain data dictionaries and I/O level specifications.
Collaborate with system architects to ensure ARINC-653 partitioning integrity.
Support certification activities through HLR/LLR documentation and DAL compliance.
Contribute to long-term strategy for scalable, maintainable software infrastructure.

What We're Looking For

8-12 years of proven expertise in C++ and object-oriented design for embedded systems.
Working knowledge of I/O architecture, protocol handling, and data management.
Background in developing certifiable software (DO-178 DAL A preferred).
Proficiency in HLR/LLR generation, review, and traceability.
Quick learner with strong initiative and drive.
Must be a U.S. citizen or US Person.