Mechanical Engineer

We’re seeking engineers who thrive on solving hard problems and turning bold ideas into real-world solutions. If you’re driven to design, develop, and test technology that truly makes an impact, you’ll feel at home here. 

Quest Defense Systems and Solutions is actively hiring Mechanical Engineering to lead hardware design, development and production of critical defense systems.

The ideal candidate will bring a blend of technical expertise, mechanical hardware design experience, system integration skills, and a strong background in program execution and production support. 

Location: Onsite Tucson, AZ.  Relocation assistance is available

Citizenship: Due to the nature of the work, US Citizenship is required. 

Clearance:    Active DoD Security Clearance  

Qualifications You Must Have: 

• Proven experience with concept definition through detailed design, transition to production, and production support. 
• Hands-on expertise with 3D CAD design tools and related product data management tools 

Preferred Qualifications: 

• Experience in design, fabrication, and integration of electronic assemblies, shelter assemblies, power distribution equipment packaging 
• Demonstrated team player, a self-driven leader with excellent collaboration skills, interpersonal skills, and positive interactions in a teaming environment 
• Prior leadership of small to mid-sized technical teams 

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

$105,000—$116,000 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.