Embedded Software Engineer - Multicore Platforms and Avionics Networking

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 (Multicore Platforms and Avionics Networking) with experience developing low-level software for multicore processors and System-on-Chip platforms. This role requires hands-on experience with deterministic avionics networking—particularly Time-Sensitive Networking, ARINC 664 Part 7/AFDX, or related ARINC communication standards—as well as development within a DO-178 environment.  You will work at the intersection of software and hardware, developing processor-level software, enabling new hardware platforms, and integrating multicore systems with FPGA, ASIC, and other custom hardware.

Location: Endicott, NY, with a hybrid work schedule available. (Remote may be available to candidates who are open to up to 50% travel for the first 6 months, then 1 week per quarter after that)
Citizenship: U.S. citizenship is required

What You’ll Do

• Design, develop, and maintain low-level embedded software using C, C++, and Assembly.
• Develop software for multicore processors and SoCs, including processor initialization, inter-core communication, synchronization, shared-resource management, and deterministic execution.
• Develop and integrate deterministic avionics networking solutions using TSN, ARINC 664 Part 7/AFDX, PCIe, and related real-time communication technologies.
• Develop board support packages, boot code, device drivers, and other platform-level software.
• Support new hardware bring-up, board initialization, and hardware/software integration.
• Integrate embedded software with FPGA, ASIC, and custom hardware components.
• Develop software in accordance with DO-178B/C processes and applicable safety-critical requirements.
• Analyze and troubleshoot timing, latency, concurrency, and real-time performance issues.
• Debug processor- and board-level software using hardware debuggers, trace tools, oscilloscopes, logic analyzers, and related laboratory equipment.
• Develop Python-based tools to support debugging, testing, automation, and integration.
• Collaborate with software, hardware, FPGA, ASIC, systems, and verification engineers throughout the development lifecycle.
• Participate in software architecture, design reviews, testing, technical documentation, and continuous process improvement.

Required Qualifications

• Bachelor’s degree in Computer Engineering, Software Engineering, Electrical Engineering, Computer Science, or another relevant STEM discipline.
• 4+ years of embedded software or firmware development experience in aerospace, avionics, defense, or another safety- or mission-critical environment.
• Strong programming experience with embedded C and C++.
• Experience developing very low-level, real-time embedded software, such as BSPs, boot code, device drivers, processor initialization, or platform software.
• Hands-on experience developing software for multicore processors or multicore SoCs.
• Experience with deterministic avionics networking or communications, including at least one of the following:
• Time-Sensitive Networking
• ARINC 664 Part 7 or AFDX
• Related ARINC avionics communication standards
• Experience working within a DO-178B/C software development lifecycle.
• Experience with board bring-up, hardware initialization, or hardware/software integration.
• Experience interfacing embedded software with FPGA, ASIC, or other custom hardware.
• Experience debugging embedded systems using hardware debugging or trace tools.
• U.S. citizenship.

Preferred Qualifications

• Experience with ARM processor architecture and ARM-based SoCs.
• Experience with PCIe or other high-speed hardware interfaces.
• Experience with RTOS, bare-metal, or embedded Linux development.
• Experience analyzing timing, latency, concurrency, WCET, or deterministic system performance.
• Experience with ARM Development Studio, DSTREAM, or comparable processor-debugging tools.
• Experience using oscilloscopes, logic analyzers, and other laboratory equipment.
• Experience developing Python scripts for debugging, testing, or workflow automation.
• Familiarity with DO-254 and hardware/software design assurance activities.
• Active security clearance or the ability to obtain one.

The QDSS Advantage

At QDSS, you’ll work alongside collaborative engineering teams on complex, mission-critical programs where software reliability and technical precision matter. You’ll have opportunities to deepen your expertise, take on new challenges, and contribute to platforms with meaningful real-world impact.

What You’ll Find Here

• Work That Matters: Contribute to next-generation safety- and mission-critical systems.
• Supported Growth: Competitive compensation, employer-matched 401(k), certification assistance, and opportunities for advancement.
• A Collaborative Culture: Join a flexible, people-focused environment where teamwork, technical excellence, and work-life balance are valued.

Benefits

• Competitive compensation, comprehensive medical, dental, life, and disability coverage, a 401(k) with employer match, professional development support, and a flexible, collaborative workplace.

Pay Ranges 100000 - 140000 USD