[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) # Senior Embedded Software Engineer AI Summary This senior embedded software engineering role develops reusable software infrastructure for safety-critical, next-generation avionics systems. The engineer will create shared libraries, I/O frameworks, data specifications, and partitioned services supporting multiple applications, including a Flight Management System program. Success requires deep C++ and embedded systems expertise, along with certification-focused development practices such as DO-178, DAL compliance, and HLR/LLR traceability. The remote role is restricted to U.S. citizens or U.S. persons and may involve up to 10% 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 130k–155k / yrDepartment[Software Engineering](https://jobicy.com/categories/engineering.md)EmploymentFull TimeExperienceSeniorPublished13 Nov 2026Apply before13 Dec 2026Listing views39Application actions0Application toolkit ## Make your next move. Prepare your resume, explore your fit, and draft a cover letter for this opportunity. 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 Senior Embedded Software Engineers to build the foundational software components that enable 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: * 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 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 $130,000—$155,000 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. 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This job listing has been manually reviewed by the Jobicy Trust & Safety Team for compliance with our posting guidelines, including verification of the company's legitimacy, accuracy of job details, clarity of remote work policy, and absence of misleading or fraudulent content. ## 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 5/5GuidedFull ownership ### Communication Load 4/5IndependentCollaborative AI insightThe role requires extensive embedded software experience in a highly regulated avionics environment where architectural choices, safety, certification evidence, and low-level implementation must align. It also demands ownership of reusable platform components across multiple complex programs. ## Salary analysis Estimated compensation compared with the broader US market for similar roles. Estimated job median (per year)Market rate$142,500US market range (per year)$135k–$165k0$181.50k 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 $130,000–$155,000 USD. The annual cadence is inferred because the posting does not explicitly state a period, but the range and senior US avionics engineering context strongly indicate yearly compensation. The estimated US market range for a senior embedded avionics engineer is $135,000–$165,000 per year. ## Core skills Skills and capabilities most closely associated with this opportunity. [Embedded Software Development](https://jobicy.com/jobs?search_keywords=Embedded%20Software%20Development.md)[C++](https://jobicy.com/jobs?search_keywords=C%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)[DO-178](https://jobicy.com/jobs?search_keywords=DO-178.md)[ARINC-653](https://jobicy.com/jobs?search_keywords=ARINC-653.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)[Safety-Critical Systems](https://jobicy.com/jobs?search_keywords=Safety-Critical%20Systems.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)[CI/CD](https://jobicy.com/jobs?search_keywords=CICD.md)[Configuration Management](https://jobicy.com/jobs?search_keywords=Configuration%20Management.md) Sample interview questionsHow would you approach extracting functionality from an existing avionics application into a reusable shared library?I would first identify stable responsibilities, interfaces, dependencies, and certification impacts. I would define a narrow, documented API, separate hardware- or application-specific code through abstraction layers, and create regression tests and traceability artifacts before incrementally integrating the library into consuming applications. What practices do you use to support DO-178 certification in embedded software development? I maintain bidirectional traceability from high-level requirements through low-level requirements, design, code, tests, and verification results. I also use coding standards, peer reviews, structural coverage analysis, configuration control, and documented verification evidence appropriate to the assigned DAL. How do ARINC-653 partitions influence software architecture decisions? ARINC-653 requires clear separation of time and space between applications, so interfaces, scheduling assumptions, memory ownership, and inter-partition communication must be explicitly designed. I minimize shared mutable state, define deterministic communication mechanisms, and validate that partition behavior remains within allocated resource budgets. How would you design an I/O framework that supports several avionics protocols? I would define protocol-independent interfaces for message lifecycle, configuration, validation, routing, and error reporting. Protocol adapters would implement details for buses such as ARINC-429, MIL-STD-1553, CAN, SPI, or UART, while a common data model and configuration layer would allow the framework to remain extensible and testable. How do you balance reusable framework design with the delivery needs of a fast-moving program? I focus on the smallest reusable abstraction that solves verified needs across more than one consumer. I deliver in increments, establish clear interface contracts early, avoid speculative generalization, and use automated tests and documentation to protect both near-term delivery and long-term maintainability. 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