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Salary
$88k – $178k per year (Estimated)
Location
In office (Austin)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 24, 2026. First seen by Alion on Sep 23, 2026. CesiumAstro scores B 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 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 be responsible for the design, analysis, and implementation of engineering test plans and procedures for board-level electronics products, including power, digital, and RF electronics. The ideal candidate possesses a strong combination of hardware and software knowledge with proficiencies in measurement techniques, test equipment, test architectures, automation, and integrated system testing. The successful candidate will work closely with multi-disciplinary teams to address company-wide test needs.

This role will be responsible for software products necessary throughout all phases of test and integration. Key projects will include developing and managing software for interfacing with flight hardware and test equipment in an abstract and flexible manner that can be quickly implemented into a variety of test campaigns, developing methods to store and access generated data, and equipping the test team with other software tools necessary to efficiently accomplish ambitious testing goals. Additionally, designing test solutions for flight hardware optimizing for reliability and efficiency, and developing modular, reusable test and automation software in Python (or similar languages) implemented in a variety of test applications to verify design and build quality.

A Senior Test Engineer I is distinguished by an ability to architect test systems, to draw insightful conclusions from test results, and to participate in “design for test” planning and review from the early stages of product development. The successful candidate will present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.

JOB DUTIES AND RESPONSIBILITIES

  • Developing test architectures and test systems, including equipment selection, test fixtures, data logging methodology, and interfaces.
  • Designing and executing tests at the prototype, qualification, and acceptance stages.
  • Developing test requirements for new products.
  • Designing tests for compliance with standards, such as NASA GEVS (GSFC-STD-7000).
  • Planning and executing board-level verification tests, such as high-speed signal integrity, digital link characterization, power supply performance, and performance over temperature.
  • Designing and developing systems for testing complex integrated hardware and software, such as phased array products that combine radios, computers, and phased array antennas.
  • Advising design engineering team on design-for-testability (DFT).
  • Evaluating and documenting test results, presenting them to key stakeholders.
  • Contributing to the continuous improvement of in-house tools, such as test software and documentation templates.
  • Training technicians and operators to perform tests.
  • Contributing to lab buildout and lab management.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • A Bachelor of Science (BS) or higher degree in Electrical Engineering or similar from an accredited university.
  • A minimum of 5 years of industry or university research experience in design, analysis, and implementation of electronic products and/or test systems.
  • Experience designing and executing test plans for custom board-level electronics.
  • Hands-on experience with lab instruments such as digital oscilloscopes, spectrum analyzers, RF signal generators, and vector signal analyzers.
  • Programming or scripting experience, such as Python, LabVIEW, SQL, MATLAB, or Embedded C.
  • Excellent written and verbal communication skills.

PREFERRED EXPERIENCE

  • Experience working in a version-controlled environment (Git or SVN).
  • Knowledge of Windows and Linux operating systems, VLANs, and network security.
  • Experience developing graphical user interfaces for a production environment.
  • Extensive knowledge of a range of digital and analog interfaces including GPIB, USB, VISA, TCP/IP, VLAN, CAN bus, SPI, I2C, and analog-to-digital conversion.
  • Experience programming test equipment using SCPI.
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