Senior Software Engineer with Test Equipment - P4
Butler
Tucson, AZ · Posted September 22, 2026
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Where Tucson, AZ ranks
Where Tucson, AZ placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #4Best cities for aerospace and defense jobs320 openings · of 67
- #6Best cities for software and engineering jobs in the Southwest307 openings · of 33
- #8Best cities for pay after cost of living in the Southwest$125k · of 15
- #13Cities with the most jobs that do not need a four-year degree in the Southwest56 jobs · of 38
- #13Best all-round cities for AI careers in the Southwest21 / 100 · of 15
- #15Best all-round cities for new graduates in the Southwest30 / 100 · of 15
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Senior Software Engineer
Location: Tucson, AZ
Job ID: #73220
Pay Range: $96-99 ph (W2)
Duration: 12 mos
The Principal Software Engineer with Test Equipment position is focused on the design, development, integration, and maintenance of software as a part of on-site factory support of systems to support weapon system product development. The selected candidate will develop applications, libraries, and instrument drivers using the software style, development language, and integrated development environment specified by the organization.
The selected candidate will contribute to multidiscipline engineering teams. Typical work involves the development of both engineering and production equipment, environments, and systems. As such, the candidate will contribute to the completion of all stages of product development for weapon system products. They will be expected to work, either as a part of a team or independently, to design, develop, and implement system level applications in support of producing and maintaining weapon system products.
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 multidiscipline engineering team environment
Develop and derive requirements for software products
Lead and mentor junior software engineers
Qualifications You Must Have:
Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 8 years prior relevant experience, or an Advanced degree in a related field and minimum 5 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 in utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software products.
Prior experience in Windows Operating System and Microsoft Visual Studio is required.
The ability to maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Qualifications We Prefer:
Prior experience in laboratory test instrumentation, electronics, and software (Ex. oscilloscopes, power supplies, digital multimeters)
Experience with computer architecture and computer hardware optimization techniques
Experience of the development of software drivers for the operation of computer hardware interfaces
Experience in common computer hardware interface and data protocols such as TCP/IP, UDP, or RS-422
Experience with Unified Modeling Language (UML) to visualize software architecture and design
Experience in software development lifecycles, such as Waterfall and Agile
Experience with Software Configuration Management principles
Experience with Microsoft Azure DevOps Server or GitHub
Written and interpersonal communication skills
Experience in leading teams/projects in a technical capacity
Benefits provided: 401K, medical, dental, and vision, sick time as applicable to state law
Butler America Aerospace, LLC. is an equal opportunity employer. Butler evaluates applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics. The Butler America Aerospace, LLC. EEO Policy Statement and “Know Your Rights” Poster is available here: Applicant and Employee Notices .
Butler America Aerospace, LLC. is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact the Human Resources Department at accommodations@butler.com .