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Salary
≈ $87k – $165k per year (Estimated)
Location
In office (Austin)
Seniority
Senior · 5+ years exp
Visa
H-1B filings in 12 months: 2
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Sep 23, 2026. CesiumAstro scores A on the Alion truth index.

Overview
Company
Impact
Profile match
CesiumAstro is an American company founded in Austin in 2017 that builds active phased array communications payloads for satellites, aircraft and defence platforms. Its systems are software-defined and electronically steered, which lets a moving platform track several links at once without mechanical antennas, and the company manufactures them in house rather than integrating third-party subsystems. It sells mainly to defence customers and satellite operators, has raised venture funding from investors including Airbus Ventures and Lightspeed, and operates facilities in Austin, Colorado and the United Kingdom.

We are looking to add a Senior Environmental Test Engineer to our team. If you are excited about working in a startup environment and are passionate about developing critical test systems for leading-edge satellite, spacecraft, and aerospace communication systems, we would like to hear from you.

In this position, you will develop and implement test procedures for dynamic and thermal environmental testing of CesiumAstro components and systems. You will be responsible for leveraging design for testability and continuous improvement to deliver space-grade electronics and structures without compromising personnel safety or product reliability. A successful candidate for this role will demonstrate integrity, intellectual curiosity, empathy, technical capability, and a strong motivation to support environmental test.

JOB DUTIES AND RESPONSIBILITIES

  • Create hardware test procedures, ensure test readiness, unblock issues that arise during test campaigns, etc. in support of our environmental test resources.
  • Develop standard operating procedures for environmental test technicians.
  • Establish and increase the efficiency of environmental test processes to maximize output, limit burden, and enable products to rapidly transition from engineering development to production.
  • Identify improvement opportunities and execute initiatives to maintain safe operations, ensure product quality, reduce lead time/labor hours, etc. through environmental test.
  • Identify, implement, and qualify environmental test equipment and processes in support of high reliability and throughput production.
  • Troubleshoot and identify ultimate root cause of issues in environmental test processes (hardware defects, test equipment anomalies, software problems, etc.), and implement permanent corrective actions.
  • Enable production autonomy understanding requirements, simplifying work processes, and automating actions.
  • Develop test equipment automation to improve efficiency of environmental test processes and maximize throughput.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Bachelor's degree in an engineering discipline and a minimum of 5 years related experience.
  • Experience in a hardware test environment for the Aerospace industry.
  • Experience operating/maintaining thermal chambers, TVAC chambers, and/or vibration shakers.
  • Experience with test instrumentation (i.e. thermocouples, accelerometers, pressure transducers, etc.)
  • Strong written and verbal communication skills.
  • Demonstrated ability to collaborate with peers.
  • Familiarity with RTCA DO-160G, MIL-STD-xxx, GEVS, SMC, etc.
  • Experience in the aerospace industry.

PREFERRED EXPERIENCE

  • Demonstrated ability to scale production rate capability.
  • Experience performing RTCA DO-160 aerospace environmental qualification campaigns for humidity, waterproofness, icing, sand and dust, salt fog, temperature and altitude, acceleration, operational shock and crash safety, vibration, and fluids susceptibility.
  • Demonstrated experience with hardware automation using Python, C++, or similar.
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