Embedded Software Engineer

We don’t just build technology—we engineer the future. From next-gen aerospace to cutting-edge defense systems, we tackle the toughest, mission-critical challenges that keep people safe and push the limits of innovation. This is where problem-solvers, innovators, and big thinkers thrive. Quest Defense Systems & Solutions is seeking an Embedded Software Engineer to support the development of scalable software infrastructure for avionics systems. You will design an I/O framework that supports multiple protocols and data interfaces while contributing to system integration, requirements traceability, and long-term software architecture. This position is onsite in Cedar Rapids, IA, or remote in the United States. Relocation assistance may be provided. Due to the nature of the work, U.S. Citizenship is required. Key Responsibilities: Design and implement an embedded I/O framework supporting multiple protocols and data interfaces. Define and maintain data dictionaries, interface specifications, and technical requirements. Develop and test embedded software in C/C++ and Python. Create, review, and maintain high- and low-level requirements with full traceability. Integrate software, hardware, device drivers, and communications across multiple platforms. Help shape scalable, reusable, and maintainable software architecture. Required Qualifications: Bachelor’s degree in Engineering, Computer Science, or another STEM discipline 4+ years of embedded software development or testing experience. Strong C/C++ skills and experience with object-oriented embedded design. Experience with embedded C in an avionics environment. Experience with Python 2.7 and Python 3.12. Knowledge of I/O architecture, protocol handling, memory management, and C data structures. Experience generating, reviewing, and tracing high- and low-level requirements. Strong initiative, problem-solving skills, and the ability to learn quickly. Preferred / Differentiating Skills: Experience with LynxOS, VxWorks, Makefiles, NXP T2080 processors, DOORS, Trace32, socket programming, and Python concurrency. Experience interfacing with hardware or developing device drivers. Familiarity with avionics and video protocols, including ARINC 429, ARINC 818, MIL-STD-1553, AFDX, CAN, SPI, and UART. Experience designing non-volatile storage using EEPROM, flash, or NVRAM. Knowledge of persistent and transient logging, rollover, retention policies, and log transport mechanisms. Familiarity with CI/CD toolchains, configuration management, and software verification. Experience integrating systems across multiple platforms and configuring network communications. Experience with dynamic resolution 2D or 3D video systems. Ability to think strategically and design reusable software frameworks. Experience adopting and/or integrating emerging technologies (e.g., generative AI, automation platforms, digital assistants) into day-to-day operations for continuous improvement. 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—$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.