Principal Software V&V Engineer - DO-178 / Multicore SoC

Engineers are the reason we exist—they’re the core of who we are. Embark on a journey with EXB Solutions at the forefront of technological innovation as we seek talented Engineers to shape the future of cutting-edge projects and contribute to a culture of excellence and creativity. What we do matters.

Quest Defense Systems & Solutions is seeking Principal Software V&V Engineers with experience in safety-critical embedded systems to support advanced aerospace and defense programs.

You’ll be verifying and validating software running on RTOS-based, multicore SoC architectures, ensuring compliance with DO-178C and alignment to system-level requirements. This includes hands-on work across integration, system test, and software verification (HLR/LLR) in complex hardware/software environments.

This role is ideal for engineers who understand the added complexity multicore introduces in certification, including timing, determinism, and partitioning concerns.

Location: Endicott, NY (potential to be hybrid)
Due to the nature of this work, all applicants must be U.S. Citizens.

Required Qualifications:

• Bachelor’s degree in software engineering or a related engineering discipline

• 8+ years of relevant Software Engineering experience in avionics or electronic controls embedded development in a safety or mission-critical environment (ie: aerospace, military).

• Experience developing or developing on top of an RTOS (real-time operating system), as well as familiarity with RTOS concepts.

• Experience with developing software to DO-178C standards.

• Experience with C and Python.

• Experience with Integration and Test at both system levels (HW/SW integration) as well as software test (HLR/LLR).

Preferred Qualifications:

• Experience with Asymmetric Multiprocessing

• Experience with debug concepts on complex multi-core SoC.

• Master’s degree in software engineering or a related engineering discipline.

• Experience with ARM processors, associated System on Chip features, and ARM toolsets like ARM Dev Studio IDE and ARM DStream Probe.

• Experience developing device drivers/board support packages.

• Familiar with data transfer protocols (ARINC 615A, ARINC 429, MIL-STD-1553, PCIe, LIN, CAN).

• Familiar with security concepts (authentication, authorization, confidentiality).

• Familiarity with actuators and sensors like stepper/torque motors, solenoids, relays, VDT, VRT, etc.

• Experience BVA (boundary value analysis), SCA (structural coverage analysis), DCCA (data and control coupling analysis).

• Experience with DO-330 Tool Qualification.

• Good soft skills: communication, active listening, self-management, raising and elevating roadblocks and hiccups, clear communication, and taking direction.

• Good general understanding of engineering principles to adapt to new projects/environments and come up to speed quickly.

• Team leadership experience, including project technical leadership and/or software functional leadership.

• 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.

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.