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# Embedded Software Engineer

- **Company:** QuEST Defense
- **Location:** Seattle, WA, United States
- **Experience:** Experienced
- **Salary:** $130,000.0 - $145,000.0
- **Contract:** Permanent contract
- **Skills:** Adobe Flash, Application Frameworks, C++ (Programming Language), Configuration Management, Communications Protocols, Continuous Integration, Data Retention, Embedded Software, Object-Oriented Software Development, Software Architecture, Real-Time Operating Systems, Software Engineering, Systems Integration, Toolchain, Universal Asynchronous Receiver/Transmitter, VxWorks, Jama (Software), Data Server Interface, Data Storage Technologies, Safety Critical Systems, Generative AI, Atlassian Tools, Data Management
- **Published:** July 27, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=db0355c1a3c36350

## About the Role

* 4+ 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

Desired Skills:

 * Strong experience with ARINC-653 partitioning and low-level application design
 * Hands-on experience with VxWorks RTOS
 * Familiarity with toolchains and CI/CD environments supporting configuration management and verification (Atlassian Suite, Jama, Coverity, Rapita, etc)
 * Designed and implemented non-volatile data storage systems (e.g., EEPROM, flash, or NVRAM) for configuration or state retention
 * Experience with persistent and transient log storage, including rollover and data retention policies
 * Familiarity with log transport mechanisms (e.g., shared memory, I/O channels, or network-based telemetry)
 * Experience developing or integrating ARINC 661 Cockpit Display Systems (CDS) and User Applications (UA)
 * Familiarity with avionics data buses and communication protocols (e.g., ARINC-429, MIL-STD-1553, AFDX, CAN, SPI, UART, etc)
 * Strategic systems thinker able to plan scalable, reusable frameworks
 * Previous FMS Experience is a bonus but not required.
 * Experience in the adoption and/or integration of emerging technologies (e.g., generative AI, automation platforms, digital assistants) into day-to-day operations for continuous improvement., Technically strong software engineer who can balance deep systems knowledge with strategic foresight. One who understands how to design reusable building blocks for complex, safety-critical systems-and thrives in a fast-moving environment where architecture, certification, and execution come together.

## Description

Engineers are the reason we exist-they're the core of who we are. We don't just build technology; we engineer the future. From next-gen aerospace to cutting-edge defense systems, our teams power the solutions that drive innovation, tackle mission-critical challenges, and keep people safe. This is where problem-solvers and big thinkers thrive.

Quest Defense Systems & Solutions is seeking Embedded Software Engineers to build the foundational software components that enable next-generation avionics systems. This team is responsible for developing shared libraries, I/O frameworks, and partitioned services that power multiple avionics applications.

This role is ideal for a systems-minded engineer with deep low-level experience who can design robust, certifiable software architectures. This effort will be in support of multiple key programs, including the Next Gen Flight Management System (FMS) program., * 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


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