The future of aerospace and defense starts here.
Ursa Major was founded to revolutionize how America and its allies access and apply high-performance propulsion, from hypersonics to solid rocket motors, satellite maneuvering and launch. We design and deliver propulsion and defense systems that solve the most urgent and critical national security demands.
Modern aerospace and defense systems require sophisticated automated test capabilities to verify the performance, reliability, and quality of mission-critical avionics throughout development, qualification, and production. As a Senior Test Software Engineer, you will develop the software that powers our automated test systems, enabling efficient verification and validation of FPGA-based electronics, embedded systems, and avionics hardware supporting advanced missile and defense programs.
In this role, you will design, develop, integrate, and maintain software applications that control electronic test equipment, execute automated test procedures, collect and analyze test data, and generate reports used for engineering development, qualification, and production acceptance. You will work closely with Electrical Design Engineers, FPGA Engineers, Flight Software Engineers, and Electrical Test Engineers to deliver scalable, reliable, and maintainable automated test solutions throughout the product lifecycle.
The ideal candidate enjoys solving complex hardware/software integration challenges, developing robust automation frameworks, and building test systems that improve product quality while reducing development and production cycle time.
Responsibilities:
- Design, develop, and maintain software for automated test equipment (ATE), Hardware-in-the-Loop (HIL) systems, engineering development laboratories, and production test stations.
- Develop software to control laboratory instrumentation including oscilloscopes, digital multimeters, signal generators, power supplies, electronic loads, switching systems, and other electronic test equipment.
- Translate engineering test requirements and procedures into automated software solutions that produce repeatable, traceable, and reliable test results.
- Design reusable software architectures, libraries, and frameworks that support multiple products and test platforms.
- Develop operator interfaces, automated test sequencing, data acquisition, measurement analysis, logging, and report generation capabilities.
- Integrate software with avionics hardware, FPGA designs, embedded software, and external instrumentation to support hardware verification and system integration.
- Support hardware integration, qualification testing, environmental testing, and production acceptance activities.
- Troubleshoot software, instrumentation, and hardware integration issues, perform root cause analysis, and implement corrective actions.
- Develop software documentation including requirements, design descriptions, user documentation, and test procedures.
- Support software configuration management, version control, and continuous improvement initiatives.
- Collaborate with cross-functional engineering teams to improve test efficiency, automation coverage, and overall product quality.
Required Qualifications:
- Bachelor's degree in Computer Engineering, Computer Science, Electrical Engineering, Software Engineering, or related technical discipline.
- 5+ years of experience developing software for automated test systems, laboratory automation, or hardware integration.
- Proficiency in one or more programming languages such as C#, Python, C++, LabVIEW, or similar.
- Experience developing software that interfaces with electronic test instrumentation using communication standards such as VISA, GPIB, USB, Ethernet/LXI, Serial, or PXI.
- Experience developing automated test sequences, data acquisition, measurement processing, and test reporting.
- Familiarity with software architecture, object-oriented programming, and software design best practices.
- Experience troubleshooting hardware/software integration issues in laboratory or manufacturing environments.
- Experience using version control systems such as Git or Azure DevOps.
- Strong analytical, debugging, and problem-solving skills.
- Must be a U.S. Person with the ability to perform work subject to ITAR/EAR regulations and applicable program requirements.
Desirable Experience:
- Experience developing automated test software for aerospace, defense, or other high-reliability electronic systems.
- Experience supporting FPGA-based systems, embedded software, or mixed-signal electronic hardware.
- Experience developing software for Hardware-in-the-Loop (HIL) or Automated Test Equipment (ATE) systems.
- Experience controlling electronic instrumentation using NI VISA, SCPI, PXI, or similar communication frameworks.
- Experience with test management tools such as NI TestStand or equivalent automated test executives.
- Experience with multithreaded software development and asynchronous hardware communication.
- Familiarity with digital communication protocols such as SPI, I²C, UART, CAN, Ethernet, or RS-422/485.
- Experience with qualification testing, environmental testing, and production acceptance testing.
- Experience developing software under configuration management and requirements-driven development processes.
- Familiarity with scripting and data analysis tools such as Python, MATLAB, or SQL.
- Active U.S. Department of Defense Security Clearance or the ability to obtain one.
Colorado law requires us to tell you the base compensation range of this role, which is $110,000 - $135,000, determined by your education, experience, knowledge, skills, and abilities. What we can’t quantify for you are the exciting challenges, supportive team, and amazing culture we enjoy.
Classification: Full-time Exempt
Benefits Include: (Please note, Interns are not eligible for benefits)
- Unlimited PTO - Vacation, Sick, Personal, and Bereavement
- Paid Parental and Adoptive Leave
- Medical, Dental and Vision Insurance
- Tax Advantage Accounts (HSA/FSA)
- Employer Paid Short and Long Term Disability, Basic Life, AD&D
- Additional Benefit Options Including Voluntary Life and Emergency Medical Transport
- EAP Program
- Retirement Savings Plan - 401k with Company Match
- Equity Grants in the Company
How To Apply:
Interested candidates are encouraged to apply by filling out the application below and clicking "Submit Application". This position will be posted for a minimum of 3 days and will remain open until filled or adjusted based on the volume of applicants.
Skills Required
- Bachelor's degree in Computer Engineering, Computer Science, Electrical Engineering, Software Engineering, or related technical discipline.
- 5+ years developing software for automated test systems, laboratory automation, or hardware integration.
- Proficiency in one or more programming languages such as C#, Python, C++, or LabVIEW.
- Experience interfacing with electronic test instrumentation using standards such as VISA, GPIB, USB, Ethernet/LXI, Serial, or PXI.
- Experience developing automated test sequences, data acquisition, measurement processing, and test reporting.
- Familiarity with software architecture, object-oriented programming, and software design best practices.
- Experience troubleshooting hardware/software integration issues in laboratory or manufacturing environments.
- Experience using version control systems and software configuration management (e.g., Git, Azure DevOps).
- Strong analytical, debugging, and problem-solving skills.
- Must be a U.S. Person with the ability to perform work subject to ITAR/EAR regulations and applicable program requirements.
Ursa Major Compensation & Benefits Highlights
-
Leave & Time Off Breadth — Time off is structured with an unlimited PTO policy plus two companywide paid breaks (mid‑summer and year‑end), creating predictable downtime alongside flexibility. Company holidays and shutdowns are consistently highlighted across employer materials and third‑party profiles.
-
Healthcare Strength — Health coverage is described as comprehensive, including medical, prescription drug, dental, vision, life/AD&D, and short‑term disability, with mental‑health resources also noted. These elements appear on the company’s careers page and are echoed by external listings.
-
Parental & Family Support — Paid parental and adoptive leave are emphasized, alongside family supports such as an onsite Mother’s Room and company‑sponsored family events. External profiles characterize the parental offering as generous.
Ursa Major Insights
What We Do
Ursa Major was founded to address a critical shortfall in the U.S. industrial base and bring a new model to aerospace and defense systems: we design and manufacture the world’s leading propulsion systems for space, hypersonic applications, and missile systems. Our products and technologies require an extraordinary team – a team that will mold tomorrow’s technologies while deploying today’s best. We are an intrinsically motivated team that has a passion for solving problems and empowering each other every day to develop our skills, knowing that there is always room for growth.
Why Work With Us
We believe that each unique team member fuels the creativity necessary to build the world’s best propulsion systems. This is realized as a deeply held commitment to celebrating individuality, hiring talent across all backgrounds and experiences, building a culture of inclusion, and constantly challenging ourselves to improve.
Gallery
Ursa Major Offices
OnSite Workspace
Most employees work on-site with some positions allowing hybrid and/or remote work.





