Senior Embedded Software Engineer — Remote Avionics

Quest Defense Systems & Solutions, Inc.; United States; Remote; USD 130,000 - 155,000; Full time

Benefits offered by this job

401(k) with employer match

Certification assistance

Professional development support

Job summary

Quest Defense Systems & Solutions is seeking Senior Embedded Software Engineers to build foundational software components for next-generation avionics. You will create reusable libraries, refactor legacy code, and design an I/O framework supporting multiple protocols, while aligning with ARINC-653 partitioning and DAL compliance.

The role targets a systems-minded engineer with deep low-level experience, contributing to ARINC 653 partitioning integrity and HLR/LLR traceability in a certifiable

Qualifications

• 8+ years of experience in embedded software development and/or testing.
• 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.

Responsibilities

• 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.

Skills

Embedded software

C++ OO design

I/O architecture

ARINC-653

VxWorks RTOS

DO-178 DAL A

HLR/LLR traceability

CI/CD tooling

Tools

Atlassian Suite

Jama

Coverity

Rapita

Job description

Quest Defense Systems & Solutions is seeking Senior Embedded Software Engineers to build foundational software components for next-generation avionics. You will create reusable libraries, refactor legacy code, and design an I/O framework supporting multiple protocols, while aligning with ARINC-653 partitioning and DAL compliance.

The role targets a systems-minded engineer with deep low-level experience, contributing to ARINC 653 partitioning integrity and HLR/LLR traceability in a certifiable