[All remote jobs](https://jobicy.com/jobs.md)[![Quest Defense Systems & Solutions, Inc. logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/11/6ff1fed5f24f-221.webp)](https://jobicy.com/company/quest-defense-systems-solutions-inc.md)[Quest Defense Systems & Solutions, Inc.](https://jobicy.com/company/quest-defense-systems-solutions-inc.md)

# Embedded Software Engineer

AI Summary Quest Defense Systems & Solutions is hiring an Embedded Software Engineer to create reusable, certifiable software foundations for next-generation avionics systems. The role centers on C++ development, low-level I/O frameworks, shared libraries, data interfaces, and ARINC-653 partitioned services. The engineer will work with system architects and certification stakeholders on DO-178-aligned documentation, traceability, and DAL compliance. Candidates need substantial embedded-development experience, with VxWorks, avionics buses, ARINC standards, and persistent data-storage expertise strongly preferred. This is a remote US role with occasional travel to Cedar Rapids, Iowa.[Apply for this job](#job-application)[View company](https://jobicy.com/company/quest-defense-systems-solutions-inc.md)ShareRemote from[USA](https://jobicy.com/job-region/usa.md)SalaryUSD 110k–145k / yrDepartment[Software Engineering](https://jobicy.com/categories/engineering.md)EmploymentFull TimeExperienceOpen levelPublished13 Nov 2026Apply before13 Dec 2026Listing views36Application actions2Application toolkit

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Opportunity details

## About this role.

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 foundational software components for next-generation avionics systems. This team develops 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.

Due to the nature of this role, all candidates must be U.S. citizens or U.S. persons.

This role is remote with the possibility of up to 10% travel to Cedar Rapids, IA.

Key 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

Required Qualifications:

* 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.

Ideal Candidate:

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.

The QDSS Advantage:

At QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact. You’ll grow your career while contributing to mission-critical programs that demand excellence and shape the future.

What You’ll Find Here

* Work That Matters – Next-generation, safety- and mission-critical projects where your contributions have real-world impact.
* Growth That’s Supported – Competitive compensation, employer-matched 401(k), certification assistance, and clear opportunities for advancement.
* A Culture That Works – A flexible, collaborative, and people-first environment where teamwork, innovation, and balance are valued.

Benefits Include

* Competitive pay, comprehensive medical/dental/life and disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.

Full compensation package is based on candidate experience and certifications

Pay Ranges

$110,000—$145,000 USD

At Quest Defense Systems and Solutions, we don’t just build technology — we engineer the future. From next-generation aerospace solutions to cutting-edge defense systems, we tackle the toughest, mission-critical challenges that keep people safe and push the boundaries of innovation. This is where problem-solvers, innovators, and visionary thinkers come together to shape the future. With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart — not just as an industry leader, but as a driving force for impactful change. Together, we’re not just leading the industry — we’re revolutionizing it.

Quest Defense provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Show more

[Apply now >](https://jobicy.com/jobs/161964-embedded-software-engineer.md)

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![Upload CV](data:image/svg+xml;base64,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)

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## Role DNA

A quick view of the complexity, pace, ownership and collaboration implied by the job description.

### Job Complexity

5/5EasyHard

### Pace & Pressure

4/5RelaxedFast-paced

### Autonomy Level

4/5GuidedFull ownership

### Communication Load

4/5IndependentCollaborative

AI insightThe role requires deep embedded C++ expertise in safety-critical avionics, where architectural choices must satisfy both system performance and rigorous certification requirements. Familiarity with ARINC-653, DO-178, low-level protocols, and traceability creates a high technical and regulatory bar.

## Salary analysis

Estimated compensation compared with the broader US market for similar roles.

Estimated job median (per year)Market rate$127,500US market range (per year)$105k–$160k0$176k

AI insightThe yearly pay period is inferred from the job context; it was not explicitly stated by the employer. The employer lists a base pay range of USD 110,000 to USD 145,000. The annual period is inferred from the professional US engineering context and the magnitude of the disclosed range, as no cadence is explicitly stated. The midpoint is USD 127,500 per year; an estimated US market range for a mid-level embedded avionics engineer is USD 105,000 to USD 160,000 per year.

## Core skills

Skills and capabilities most closely associated with this opportunity.

[Embedded C++](https://jobicy.com/jobs?search_keywords=Embedded%20C%2B%2B.md)[Object-oriented design](https://jobicy.com/jobs?search_keywords=Object-oriented%20design.md)[Avionics software](https://jobicy.com/jobs?search_keywords=Avionics%20software.md)[ARINC-653](https://jobicy.com/jobs?search_keywords=ARINC-653.md)[DO-178](https://jobicy.com/jobs?search_keywords=DO-178.md)[VxWorks](https://jobicy.com/jobs?search_keywords=VxWorks.md)[I/O architecture](https://jobicy.com/jobs?search_keywords=IO%20architecture.md)[Protocol handling](https://jobicy.com/jobs?search_keywords=Protocol%20handling.md)[HLR/LLR traceability](https://jobicy.com/jobs?search_keywords=HLRLLR%20traceability.md)[ARINC-429](https://jobicy.com/jobs?search_keywords=ARINC-429.md)[MIL-STD-1553](https://jobicy.com/jobs?search_keywords=MIL-STD-1553.md)[AFDX](https://jobicy.com/jobs?search_keywords=AFDX.md)[Configuration management](https://jobicy.com/jobs?search_keywords=Configuration%20management.md)[Non-volatile storage](https://jobicy.com/jobs?search_keywords=Non-volatile%20storage.md)[CI/CD](https://jobicy.com/jobs?search_keywords=CICD.md)

Sample interview questionsHow would you design a reusable I/O framework for several avionics applications using different data buses?I would define stable, hardware-independent interfaces for data acquisition, transport, validation, and publishing. Protocol-specific adapters would isolate ARINC-429, MIL-STD-1553, CAN, SPI, or UART details, while common services would manage scheduling, error handling, configuration, and data quality. I would document interface contracts and maintain traceability to system requirements.

What practices do you use to support DO-178 certification in embedded software development?

I begin with clear, testable high-level and low-level requirements, maintain bidirectional traceability, and use reviews to verify correctness and completeness. I apply coding standards, deterministic design principles, static analysis, unit and integration testing, and configuration control. Evidence is produced throughout development rather than deferred until certification activities begin.

Describe an approach to preserving ARINC-653 partitioning integrity.

I would identify each partition's responsibilities, time and memory allocations, interfaces, and allowable communication paths. Shared services must avoid violating isolation boundaries, so I would use approved ports and controlled data exchange mechanisms with strict validation. Testing would include partition scheduling, fault handling, resource limits, and robustness under invalid or delayed inputs.

How would you implement persistent logging for a constrained embedded platform?

I would first define retention, rollover, recovery, performance, and certification requirements. The implementation would use bounded storage, integrity checks, wear-aware handling where flash is involved, and a resilient record format that can recover after power interruption. I would separate the logging API from storage drivers and test capacity limits, corruption scenarios, and transport of logs through approved channels.

How do you refactor existing application-level functionality into a shared library without disrupting current programs?

I would identify cohesive functionality and its dependencies, establish a minimal public interface, and create characterization tests around existing behavior. I would then extract the component incrementally, preserve compatibility where needed, and validate it in both the original application and representative consumers. Requirements, interface specifications, and verification artifacts would be updated to maintain certification traceability.

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