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Defense Contractor Software Engineer Jobs in Arizona

INA Solution Inc

Principal Software Engineer

Tucson, AZ · On-site

$127K - $171K/yr

Principal Software Engineer - Tucson, AZ (Onsite) Active Secret Clearance Required A leading aerospace & defense company is seeking a Principal Software Engineer to develop and maintain Windows-based ...

Foxhound Federal

Software Engineer

Tucson, AZ · On-site

$80K - $95K/yr

This role focuses on building reliable, high-performance software for real-time and distributed environments, often supporting defense, aerospace, or complex engineering applications. Position ...

Rincon Research Corporation

Sr. Software Engineer

Tucson, AZ · On-site

$113K - $150K/yr

... States Defense and Intelligence Communities. They are seeking a Sr. Software Engineer to design ... real-time cloud processing solutions, implement advanced algorithms, and provide technical ...

Rincon Research Corp

Advanced Software Engineer

Tucson, AZ · On-site

$127K - $228K/yr

Rincon Research Corporation seeks a Software Engineer to create cutting edge software and cloud computing solutions to challenging national security and defense signal processing, geolocation, and ...

Sapsol Technologies Inc

Software Engineer

Phoenix, AZ · On-site

... in programming languages such as C, C++, Assembly. * Experience working in DAL A software ... Experience working with Defense Customers preferred Requirements * Leading and organizing the RFIO ...

Sapsol Technologies Inc

Software Engineer

Phoenix, AZ · On-site

... in programming languages such as C, C++, Assembly. * Experience working in DAL A software ... Experience working with Defense Customers preferred Requirements * Leading and organizing the RFIO ...

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Defense Contractor Software Engineer information

What skills and qualifications are needed to thrive as a defense contractor software engineer?

To excel as a Defense Contractor Software Engineer, you should possess strong programming skills in languages like C++, Java, or Python, a bachelor's degree in computer science or engineering, and eligibility for security clearance. Familiarity with tools and frameworks such as embedded systems, real-time operating systems (RTOS), and secure software development methodologies is often required, along with certifications like Security+ or CISSP. Outstanding problem-solving, attention to detail, and the ability to communicate effectively within multidisciplinary teams are valuable soft skills. These capabilities ensure project success, compliance with stringent regulations, and the ability to innovate in high-stakes, mission-critical environments.

What does a defense contractor software engineer do?

As a Defense Contractor Software Engineer, your daily responsibilities may include designing, coding, and testing software for defense systems, debugging complex issues, and ensuring products comply with security and regulatory standards. You'll often collaborate closely with systems engineers, hardware teams, and project managers to deliver integrated solutions. Depending on your project, you might also participate in technical reviews, support integration and testing activities, and maintain thorough documentation. Working within a multidisciplinary team, you will play a key role in delivering reliable and secure technology critical to national defense.

What is a defense contractor software engineer?

A Defense Contractor Software Engineer develops, tests, and maintains software systems for military and defense applications. They work for private companies that contract with government agencies, such as the Department of Defense, to create secure and reliable software solutions. Their work often involves embedded systems, cybersecurity, and compliance with strict government regulations. This role requires a security clearance, knowledge of specialized programming languages, and an understanding of defense industry standards.

What are the most commonly searched types of Defense Contractor Software Engineer jobs in Arizona? The most popular types of Defense Contractor Software Engineer jobs in Arizona are:
What are popular job titles related to Defense Contractor Software Engineer jobs in Arizona? For Defense Contractor Software Engineer jobs in Arizona, the most frequently searched job titles are:
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What cities in Arizona are hiring for Defense Contractor Software Engineer jobs? Cities in Arizona with the most Defense Contractor Software Engineer job openings:
Defense Contractor Software Engineer jobs near you
Infographic showing various Defense Contractor Software Engineer job openings in Arizona as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Software Engineer - Test Equipment

Quest Defense Systems & Solutions, Inc.

Tucson, AZ • On-site

Full-time

Medical, Dental, Life, Retirement

Re-posted 9 days ago

Job description

Immediately hiring engineers who want to contribute to mission-critical systems that demand precision, accountability, and technical excellence. Success here means solving real problems that keep complex systems moving forward.
Quest Defense Systems & Solutions is seeking a Software Engineer to join the Test Equipment Engineering (TEE) team. In this role, you will design, develop, integrate, and maintain Windows-based software applications that support the development, testing, and production of mission-critical weapon systems.
You will work closely with software, electrical, systems, and test engineers to create software solutions used in engineering laboratories, manufacturing environments, and production facilities. This position supports factory operations by developing applications, software libraries, and instrument drivers used with automated test equipment throughout the product lifecycle.
This is a hands-on software engineering role that combines application development, system integration, troubleshooting, and technical leadership.
This is a 100% onsite position based in Tucson, Arizona, where you'll enjoy the collaboration of working alongside your team every day. With more than 310 days of sunshine each year, stunning mountain views, and a vibrant yet relaxed lifestyle, Tucson offers an exceptional place to build both your career and your life. All candidates must be U.S. citizens due to the nature of the work. Clearance or the ability to obtain a clearance is strongly preferred unless otherwise stated below.
What You'll Do:
  • Design, develop, test, and maintain Windows-based software applications using object-oriented programming principles.
  • Develop software in C# and C++ using Microsoft Visual Studio.
  • Create and maintain software libraries, utilities, and instrument drivers used with automated test equipment.
  • Support software integration for engineering labs, manufacturing, and production test environments.
  • Troubleshoot software issues and interface with automated test equipment and instrumentation.
  • Work closely with cross-functional engineering teams, including Systems, Electrical, Mechanical, and Manufacturing Engineering.
  • Develop software requirements and translate system requirements into software solutions.
  • Support software throughout the engineering lifecycle, including development, verification, production, and sustainment.
  • Manage multiple engineering tasks while balancing competing priorities.
  • Lead technical efforts on software projects and provide guidance and mentorship to junior software engineers.
  • Contribute to continuous improvements in software design, development practices, and test automation.

Required Qualifications
  • Bachelor's degree in Computer Engineering, Computer Science, Software Engineering, Electrical Engineering, or another STEM-related field.
  • 2-8 years of professional software engineering experience, or
  • 5 years of professional software engineering experience with a Master's degree in a STEM discipline.
  • Experience developing object-oriented software applications using:
    • C#
    • C++
  • Experience using Microsoft Visual Studio.
  • Experience developing software for Microsoft Windows operating systems.
  • Experience designing, developing, debugging, and integrating software applications.
  • Experience working in a collaborative, multidisciplinary engineering environment.
  • Ability to manage multiple technical priorities simultaneously.
  • U.S. Citizenship required.

Preferred Qualifications
  • Experience developing software for automated test equipment (ATE).
  • Experience creating software libraries and hardware instrument drivers.
  • Experience in integrating software with electronic test instrumentation.
  • Experience supporting manufacturing, production, or factory test environments.
  • Experience developing software requirements and technical documentation.
  • Experience supporting software throughout the full product development lifecycle.
  • Experience troubleshooting integrated hardware and software systems.
  • Previous experience mentoring or leading software engineers.
  • Experience working within aerospace, defense, or other highly regulated engineering environments.
  • Active U.S. Security Clearance.

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.

This position may be filled at multiple levels depending on the candidate's experience and qualifications. Responsibilities and compensation will be aligned to the selected level.
Full compensation package is based on candidate experience and certifications
Pay Ranges
$61-$66 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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