Principal Mechanical Design Engineer, CesiumAstro
$145-198k
+ Stock Options
Office located in El Segundo, CA
Aerospace communication systems
Be an early applicant
Aerospace communication systems
101-200 employees
Be an early applicant
$145-198k
+ Stock Options
Office located in El Segundo, CA
101-200 employees
Company mission
To deliver advanced phased array technology to diverse applications at compelling performance and cost.
Role
Who you are
- If you enjoy working in a startup environment, and are passionate about developing leading-edge hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you
- The ideal candidate will have extensive experience in electronics packaging design, mechanical simulations and analyses, computer-aided design (CAD), spacecraft mechanical interfaces, and environmental qualification of electronic assemblies
- Required skills and experience include thermal management design, precision machining principles, thermal simulation and analysis, shock and vibration simulation and analysis, electromagnetic interference/compatibility (EMI/EMC) mitigation techniques, geometric dimensioning and tolerancing (GD&T), finite element analysis (FEA), and cost analysis to develop, validate, and optimize mechanical designs
- As such, excellent written and verbal communication skills are required
- Bachelor of Science (BS) or Master of Science (MS) degree in Mechanical or Aerospace Engineering from an accredited university or institution
- 11 years of industry experience in design and analysis of electronics packaging, including thermal, vibration, and stress dynamics, or 9 years of experience with a Master's degree
- Expertise in aerospace industry design, development, and qualification
- Expert-level proficiency with electronics assemblies and experience working closely with electrical engineers
- Expert-level proficiency with professional mechanical and FEA CAD tools, such as Solidworks Simulation
- Experience with CNC manufacturing
- Experience with EMI/EMC mitigation techniques
- Excellent written and verbal communication skills
What the job involves
- We are looking to add a Principal Mechanical Design Engineer II to our team
- In this position, you will be responsible for the mechanical design of Cesium products through all phases of the development process
- As a principal mechanical team member, you will be responsible for mechanical designs from initial concept design through requirements definition, detailed design, simulation, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products
- Principal engineers also serve as technical and professional mentors in their field
- The successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts
Our take
CesiumAstro is a startup specializing in phased array communications for aerospace applications. It manufactures antennas that support in-flight connectivity and satellite communications, addressing the significant data transfer needs of AI and autonomous vehicles.
This type of communication support is vital nowadays, when the transfer of massive amounts of data is mission-critical. The company's first antenna flew in 2023 as part of a payload for defense contractor CACI International. Plus, it secured a lucrative subcontract with RocketLab to provide antennas for the Space Development Agency.
In 2024, CesiumAstro secured funding that brought its total equity to over $150 million. This investment will fuel the company's expansion, R&D and manufacturing goals. With plans to grow its team and develop new technology, CesiumAstro seems set for continued growth.
Freddie
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 5 rounds)
Mar 2025
$55m
GRANT
Jun 2024
$65m
SERIES B
Total funding: $194.2m
Company benefits
- Health, dental, vision
- HSA and FSA
- Life and retirement plans
Company HQ
Bee Cave, TX
Leadership
Shey Sabripour
(CEO)Served as the Director of Spacecraft Design at Lockheed Martin for over 23 years. They also served as the CTO at Firefly Aerospace before founding CesiumAstro.
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