Software Engineer - Embedded Systems & UI Development

About Quest Defense Systems and Solutions

At Quest Defense Systems and Solutions (QDSS), we are a high-growth, agile company dedicated to creating safety and mission-critical solutions. We operate in a synergistic environment, collaborating with our client partners on groundbreaking projects across Aerospace, Defense, Space, and Medical Devices. Our engineers have contributed to iconic programs like the F-35 and F-16 fighter jets, advanced aviation technologies, medical devices, spacecraft, and satellites. We are powering engineering solutions that drive technological advancement.

The Opportunity

We are seeking highly skilled Software Engineers to perform requirements-based unit tests for embedded software within a nuclear power plant control system. This role also involves using Python to develop a User Interface (UI) for software verification tools. The project adheres to the NQA-1 safety standard, a quality assurance framework for nuclear facility applications, and testing must be performed with a safety and completeness mindset prescribed by DO-178, ensuring comprehensive testing (MCDC coverage).

Please Note: Due to the nature of the project, all applicants must be U.S. Citizens or US lawful permanent residents.

Location: This role is preferred onsite/hybrid in Wilmington, NC.

Key Responsibilities

• Develop User Interface (UI) using the Python Tkinter library.
• Develop controls/monitoring software and low-level requirements-based tests to generate full-coverage LDRA verification procedures.
• Analyze and disposition structural coverage holes.
• Coordinate with the customer to ensure full test coverage, correct expected results, and communicate/dispose of test findings.
• Execute tests in the LDRA test setup on both simulated and on-target environments.
• Review test results and test time history data during test development, regression runs, and to assist in debugging software issues.
• Identify and report findings to the customer when test outcomes do not align with requirements or expected results.
• Author and participate in formal reviews of test cases, procedures, and results.

Required Qualifications

• Bachelor's or Master's degree in aerospace engineering, electrical engineering, software engineering, or a related technical field.
• Experience developing Python UIs using Tkinter or similar libraries (e.g., pySide, pyQt, wxPython).
• Experience performing low-level software requirements-based testing under DO-178B/C or other safety-critical process standards.
• Experience testing with LDRA or a similar tool (e.g., VectorCAST).
• Proficiency in understanding C programming, preferably with experience developing C code.
• A general understanding of control laws and redundancy management.

Preferred Qualifications

• Commercial controls industry experience or other embedded software development experience.
• 5 years of experience developing embedded software in safety-critical systems.

The QDSS Advantage

At QDSS, our advantage lies in purpose-driven work, collaborative teams, and complex challenges that push boundaries and create 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: Engage in next-generation, safety- and mission-critical projects where your contributions have real-world impact.
• Growth That’s Supported: Benefit from competitive compensation, employer-matched 401(k), certification assistance, and clear opportunities for advancement.
• A Culture That Works: Experience a flexible, collaborative, and people-first environment that values teamwork, innovation, and balance.

Benefits Include

• Competitive pay.
• Comprehensive medical, dental, life, and disability coverage.
• 401(k) with employer match.
• Professional development support.
• A flexible, friendly workplace.

Note: The full compensation package is based on candidate experience and certifications.

Pay Range: $90,000—$120,000 USD