Senior Software Engineer – Test Equipment & Factory Systems Support

Quest Defense Systems & Solutions•Scottsdale, AZ

10h•Onsite

About The Position

Join Quest Defense Systems & Solutions, supporting the development of advanced aerospace and defense products through cutting-edge software and test systems engineering. We are seeking a hands-on Principal or Senior Software Engineer who thrives in fast-paced engineering environments and enjoys solving complex problems at the intersection of software, hardware, and production systems. In this role, you will design, develop, integrate, and maintain software applications used to support engineering labs, factory test environments, and weapon system product development. You’ll work with C#, C++, and other modern programming languages to build applications, drivers, and tools that interface directly with instrumentation, automated test equipment, and hardware systems critical to product performance and delivery. You’ll collaborate closely with multidisciplinary teams across software, electrical, systems, and manufacturing engineering to develop solutions that improve efficiency, reliability, and test capability. This is an excellent opportunity for an engineer who enjoys both software development and real-world hardware integration, while mentoring junior engineers and contributing to programs with real mission impact. Due to the nature of this role, all candidates must be U.S. citizens. Active Secret Clearance required or ability to obtain interim clearance prior to start. This role is onsite in Scottsdale, AZ. Relocation assistance is provided.

Requirements

Typically requires a bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 5 years prior relevant experience, or an Advanced degree in a related field and minimum 3 years’ experience.
Experience in developing and integrating software applications using programming languages including but not limited to C++, C#, Java, Python or Visual Basic.
Experience with Windows Operating System and Microsoft Visual Studio is required.
U.S. citizens
Active Secret Clearance required or ability to obtain interim clearance prior to start

Nice To Haves

Familiar with computer architecture and computer hardware optimization techniques
Working knowledge of the development of software drivers for the operation of computer hardware interfaces
Working knowledge in common computer hardware interface and data protocols such as TCP/IP, UDP, or RS-422
Familiarity with laboratory test instrumentation, electronics, and software (Ex. oscilloscopes, power supplies, digital multimeters)
Experience with Unified Modeling Language (UML) to visualize software architecture and design
Experience of software development lifecycles, such as Waterfall and Agile
Experience with Software Configuration Management principles
Experience with Microsoft Azure DevOps Server or GitHub
Good written and interpersonal communication skills

Responsibilities

Design, develop, and integrate object-oriented software applications using C#, C++ in Microsoft Visual Studio in a Windows Operating System (OS)
Prioritize and handle multiple software engineering tasks concurrently
Troubleshoot software and test equipment instrumentation
Work in a multidisciplinary engineering team environment
Develop and derive requirements for software products
Lead and mentor junior software engineers