Junior 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 and Solutions is seeking an experienced Aerospace Software Verification Engineer to join our team in performing software design review and software verification for a Level A certified aircraft engine control system. 

Due to the nature of the project all applicants must be US Citizens or US lawful permanent resident. This role is onsite in Cincinnati, OH.  

Responsibilities: 

• Perform detailed reviews of software design diagrams (created in Beacon) against established standards checklists and best practices. 

• Develop, execute, and debug software unit tests to verify requirements-based functionality and robustness. 

• Identify, document, and resolve discrepancies or defects discovered during reviews and testing. 

• Collaborate with cross-functional teams to support verification activities in a regulated aerospace environment. 

Required Skills: 

• Solid understanding of fundamental software concepts, including data types, control structures, conditional execution paths, and modular design. 

• Experience interpreting and working with software logic diagrams, flowcharts, or model-based design representations. 

• Proven hands-on experience in software verification activities, such as testing, reviews, or analysis. 

• Strong attention to detail and ability to work methodically in accordance with strict processes. 

Desired Skills: 

• Knowledge of DO-178C (or DO-178B) Level A certification processes, particularly as applied to aircraft engine control systems or FADEC (Full Authority Digital Engine Control). 

• Familiarity with unit testing frameworks/tools in embedded or safety-critical environments. 

• Excellent problem-solving skills with the ability to thrive in a fast-paced, collaborative, and process-driven team setting. 

• Prior experience in aerospace, avionics, or similarly regulated industries. 

Physical Requirements & Work Environment: 

• Mostly Office Environments, Occasional Shop Floor involvement. 

• Substantial amounts of telephone and computer work. 

• Heavily Regulated Industries with strict adherence to procedures. 

• Flexibility to meet business deadlines by staying late or arriving early. 

• Typical 8 hour days plus lunch / 40 hour weeks / core (required) hours are 9AM to 4PM 

• Ability to use personal transportation to visit customer locations. 

• Due to the nature of the work, all candidates must be a U.S. Citizen 

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. 

Why QDSS:  

We’re a family-like-company. We are collaborative. We believe in embracing change. We believe in doing consistent good work. EXB houses smart, curious and passionate about “making a difference” people.  Our company culture sets us apart from others as well as:   

• 401k with Employer-Match Contributions 

• Medical, Dental, and Life coverage 

• Disability Benefits 

• Generous compensation structure 

• Significant opportunities for advancement 

• Next Generation / Cutting Edge Technology Projects 

• Certification Assistance Available (Approval Required) 

• Flexible, Friendly and Fun work environment 

About Us 

At QDSS, we are more than an engineering company—we are a force for innovation and positive change. With over 25 years of proven expertise in solving mission-critical challenges, we empower our team to push boundaries, combining deep industry knowledge, cutting-edge technology, and a collaborative "think tank" approach.  

 
Our vision is to be the trusted partner of choice for our defense and aerospace clients, delivering secure, sustainable, and world-class solutions that build a brighter future. 

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.