Senior Test Software Engineer II
Cesium Astro
Westminster, CO$133,000 - $161,0001 week ago
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Benefits
EquityDental & VisionRetirement PlanStock Options
Job Type
full time
Description
Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.
At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.
The Skylark product line is focused on the rapid design, build, and test of cutting-edge active phased array antennas (AESA) for terrestrial and airborne applications. Current programs span high-power, large-scale ground terminals for missile defense to commercial airline and helicopter connectivity solutions.
We are looking for a Senior Test Software Engineer II to design, develop, and maintain automated test systems for embedded hardware and firmware. In this role, you’ll work closely with embedded software, hardware, and systems engineers to ensure our products are reliable, robust, and production-ready. You’ll own test infrastructure from low-level hardware validation through system-level and regression testing.
This role is ideal for someone who enjoys building test frameworks, working close to the hardware, and improving product quality through automation and thoughtful test design.
JOB DUTIES AND RESPONSIBILITIES
- Design and implement automated test software for embedded systems
- Develop test frameworks for unit, integration, hardware-in-the-loop (HIL), and system-level testing
- Write test code in C/C++, Python, or other scripting languages to validate firmware and hardware behavior
- Interface with embedded targets using UART, SPI, I2C, CAN, Ethernet, JTAG, and other protocols
- Collaborate with firmware and hardware teams to define test requirements and acceptance criteria
- Debug failures across software, firmware, and hardware layers
- Integrate tests into CI/CD pipelines and support regression testing
- Create and maintain test documentation, reports, and metrics
- Continuously improve test coverage, reliability, and execution time
JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
- Bachelor of Science (BS) or Master of Science (MS) degree in Computer Science, Electrical Engineering, or Computer Engineering.
- Minimum of 6 years of industry experience in software development.
- Strong experience with embedded systems and low-level software.
- Proficiency in C/C++ and/or Python.
- Experience developing automated test software, not just manual testing.
- Familiarity with RTOS or bare-metal systems.
- Experience debugging using oscilloscopes, logic analyzers, or JTAG/debug probes.
- Solid understanding of software testing principles and test automation best practices.
PREFERRED EXPERIENCE
- Experience with HIL/SIL testing or custom test rigs.
- Familiarity with CI systems (GitHub Actions, Jenkins, GitLab CI, etc.)
- Experience testing safety-critical or high-reliability systems.
- Knowledge of Linux-based embedded systems.
- Exposure to aerospace, automotive, robotics, or industrial embedded products.
CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.
CesiumAstro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.
Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.
This job is found at InterviewStack.io
Skills
automationc++pythonfirmwareuartspii2cci/cdrtosdebugginggithub actionsjenkinsgitlabembedded systemstest automationmanual testingregression testing
About Cesium Astro
Cesium Astro is an engineering company based in Westminster, Colorado, United States. The company specializes in engineering roles such as thermal engineering and operates a career page hosted on Lever. It is involved in advanced engineering projects, likely in aerospace or satellite technology sectors given the name and job roles.