Six Figure Work

Senior Test Software Engineer

Ursa Major

Company websiteursamajor.com (Ursa Major, opens in new tab)

Base salary $110K  to $135K

Employer-published annual base salary, USD. Advertised base range in Longmont, CO

Apply (opens in new tab)

You apply on the employer's own site. Six Figure Work does not handle applications.

  • LocationLongmont, CO
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (26 min ago) · observed since

About this job

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

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.

Source: Ursa Major on Greenhouse · View original posting (opens in new tab)

Pay in context

This role's base floor ($110,000) is above 13% of the 186 Engineering (non-software) roles in Colorado listed on this site; 4 others list the same floor. Their median floor is $129,488; the middle half runs from $113,941 to $144,179.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.

This range next to 6 other live Ursa Major roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Ursa Major roles with the nearest advertised base floor
RolePublished base
Senior Test Software Engineer (this listing)$110K - $135K
Senior Avionics Test Engineer$110K - $133K
Senior Test Engineer$109K - $136K
Senior Configuration Engineer$109,000 - $126,700
HPC Systems Engineer$108K - $135K
Senior Turbomachinery Engineer$112K - $140K
Senior Ground Support Design Engineer$112K - $140K

Same $100K to $400K scale as every card. All Ursa Major roles · How to read the bar

Observed changes

  1. Began meeting the published-salary criteria
  2. First observed on the employer's board
Observed since
Employer-stated posting date
2026-08-10
Where this pay comes from

Location as the employer wrote it: Longmont, Colorado

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, skill

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.