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Open nowPosted 2 days ago

Software Engineer – Test Equipment

Quest Defense Systems & Solutions, Inc.72 open roles

Pay
$100,000 – $140,000 a year
Where
Tucson, AZ
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Your applicationOpen nowSoftware Engineer – Test EquipmentQuest Defense Systems & Solutions, Inc. · Tucson, AZ

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The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market. Quest Defense Systems & Solutions, Inc. postings stay open a median of 14 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: posted 2 days ago

Quest Defense Systems & Solutions, Inc. median: 14 days open

The posting

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 growing and looking to build out a team of Software Engineers at multiple levels (Engineer II, Senior, and Principal) who will design, develop, integrate, and maintain software supporting factory test equipment for weapon system product development. Responsibilities include building applications, libraries, and instrument drivers following organizational languages and development environments. Work involves collaboration within multidiscipline teams and participation across all stages of product development. Principal‑level engineers will also provide leadership and mentorship to junior team members.

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 or the ability to obtain and maintain

In this Role, you will:

  • Design, develop, and integrate object‑oriented software applications using C#, C++ in Microsoft Visual Studio within a Windows OS environment.
  • Troubleshoot software and test equipment instrumentation.
  • Work effectively in multidiscipline engineering teams.
  • Prioritize and execute multiple tasks concurrently.
  • Derive and develop software requirements.
  • (Principal level) Lead technical efforts and mentor junior engineers.

Qualifications You Must Have:

  • A bachelor’s degree in science, Technology, Engineering, or Mathematics (STEM) and 2–10+ years of relevant engineering experience (higher experience levels also acceptable; equivalent master’s degree combinations recognized).
  • Experience with C++, C#, Java, Python, or Visual Basic.
  • Experience using IDEs and debugging tools.
  • Experience with lab instrumentation, hardware interfaces, protocols (TCP/IP, UDP, RS‑422).
  • Experience with UML, configuration management, Azure DevOps/GitHub.
  • Proficiency with Windows OS and Microsoft Visual Studio.
  • Must maintain a U.S. Secret clearance; U.S. citizenship required.
  • Ability to obtain and maintain a U.S. security clearance prior to start; U.S. citizenship required.

Preferred Qualifications:

  • Understanding computer architecture and optimization techniques.
  • Experience developing software drivers for hardware interfaces.
  • Knowledge of protocols such as TCP/IP, UDP, RS‑422.
  • Familiarity with test instrumentation (oscilloscopes, DMMs, power supplies).
  • Experience with UML, Agile/Waterfall lifecycle models, Azure DevOps or GitHub.
  • Strong written and interpersonal communication skills.

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.

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