SECTION I · THE BRIEF
Brief #44574Updated 26 AUG 2026LONGMONT, COGreenhouseMOTOR VEHICLE MANUFACTURERS
Employbl Company Profile

Senior Test Software Engineer

Ursa Major Technologies is an American aerospace company founded in 2015 and based in Berthoud, Colorado. The company produces rocket engines and sells them to space launch and hypersonics companies, and the U.S.…

Location
Longmont, CO
Company size
200–500
Posted
1w ago
Comp band
$110K–$135K
Section II · Full ProfileFree with an account
  • 01Equity package & total comp detailLocked
  • 02Seniority & experience requirementsLocked
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Ursa Major logo

Senior Test Software Engineer · Ursa Major

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Job title
Senior Test Software Engineer
Job location
Longmont, Colorado
Job description

 

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.


NOTE: Research suggests that women and BIPOC individuals may self-select out of opportunities if they don't meet 100% of the job requirements. We encourage anyone who believes they have the skills and the drive necessary to succeed here to apply for this role.
 
Must be a U.S. Person (this includes U.S. Citizens and Permanent Residents).
 
Eligibility to obtain and maintain a U.S. Security Clearance. 
 
We’re an equal-opportunity employer. You will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.
 
No outside recruiters, please.
 
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Where this role is based

Longmont, CO

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Ursa Major headquarters

Berthoud, CO

Company size

200500 employees

Founded

2015

Total raised

$459,980,711

View company profile ↗

Funding rounds

  • Debt Financing$50M
  • Series E$100M

    Eclipse, XN, Woodline Partners, Alsop Louie Partners +2 more

  • Series Unknown$356.6K

    Gaingels

  • Grant$12.5M

    Department of Defense's Office of Strategic Capital (OSC), United States Department of the Navy

  • Series D$38M

    Explorer 1 Fund, Mack-Cali Realty, BlackRock, RTX Ventures +2 more

  • Series D$100M

    Eclipse Ventures, Space Capital, BlackRock, Alumni Ventures Group +1 more

  • Series C$85M

    BlackRock, Alpha Edison, Explorer 1 Fund, XN +3 more

  • Series Unknown$15M
  • Series B$25.3M

    Conconi Growth Partners, Space Capital, Morgan Brook Capital, Alpha Edison +1 more

  • Series B$9.8M

    Conconi Growth Partners, Space Capital, Morgan Brook Capital, Alpha Edison +1 more

  • Series Unknown$525K

    Alumni Ventures Group

  • Series B$15.5M

    Alpha Edison, Space Capital, Dylan Taylor

  • Series A$8M

    Space Capital, Alsop Louie Partners, Dolby Family Ventures, Blue Ivy Ventures