Embedded Software Engineer - Real-Time Systems

Embark on a journey with QDSS 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 looking for an Embedded Software Engineer with experience in embedded C/C++, real-time operating systems, multicore processors, and low-level software development to build software that powers safety-critical systems. You'll work across software, hardware, FPGA, systems, and verification teams to design, develop, integrate, and validate embedded solutions for mission-critical applications.

Location: Remote candidates will be considered provided they are available for an initial onboarding period in Endicott, NY and can travel to the site on a quarterly basis thereafter.

Citizenship: U.S. Citizenship is required.

What You'll Do

• Design, develop, and maintain embedded software using C, C++, and Assembly.
• Develop low-level software including device drivers, board support packages (BSPs), boot code, and processor initialization.
• Optimize software performance on ARM-based multicore processors.
• Analyze and improve deterministic real-time system performance, timing, and resource utilization.
• Support hardware/software integration with FPGA, ASIC, and embedded hardware platforms.
• Perform system integration, debugging, and verification using ARM DS IDE, DSTREAM, and Python.
• Participate in software architecture, code reviews, and technical design discussions.
• Support software verification and certification activities in accordance with DO-178C.
• Collaborate with systems, hardware, FPGA, and verification engineers throughout the development lifecycle.
• Help improve software quality, automation, and development processes.

Required Qualifications

• Bachelor's degree in Computer Engineering, Software Engineering, Electrical Engineering, Computer Science, or another STEM discipline.
• 4+ years of experience developing embedded software.
• Strong programming experience with Embedded C and C++.
• Experience with real-time embedded systems, firmware, or low-level software development.
• Experience with multicore processors or ARM-based architectures.
• Experience debugging embedded software using hardware debugging tools.
• Experience working with hardware/software integration.
• Knowledge of DO-178C, safety-critical software, or other regulated embedded software environments.
• Strong problem-solving and communication skills.
• U.S. Citizenship required.

Preferred Qualifications

Experience with any of the following is highly desirable:

• ARM processors
• NXP S32 processors
• RTOS
• Bare Metal Software
• Board Support Packages (BSP)
• Device Drivers
• Boot Loaders
• FPGA or ASIC interfaces
• Python automation
• Cache management
• Worst Case Execution Time (WCET)
• Deterministic execution
• Multicore synchronization
• DCCC analysis
• Avionics
• Aerospace
• Defense
• Electronic Warfare
• Flight Controls
• DO-178C Level A
• Active Security Clearance

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

$100,000—$140,000 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.