CesiumAstro

Designs satellite communications hardware and software

Senior Staff Mechanical Engineer

Design EngineeringPosted on Nov 13

Full-timeMelbourne, FL, USAIn-person

About the Job

Requirements

A Bachelor of Science in Mechanical Engineering or Aerospace Engineering from an accredited university or institution is required.
At least 12 years of experience in space antenna and payload mechanical engineering, including electronics packaging, thermal, shock, vibration, stress dynamics, and cost. A master's degree may count as two years of experience.
Experience conducting architectural trade studies, including parametric and first-order cost and physical analysis.
Experience with professional mechanical and finite element analysis computer-aided design tools, such as Ansys Mechanical, SolidWorks Simulation, and Thermal Desktop.
Experience with computer numerical control manufacturing and geometric dimensioning and tolerancing.
Experience with advanced aerospace manufacturing and materials, including sandwich panels and carbon composites, or experience with high-reliability deployment mechanisms for space applications, including deployment, hold-down and release mechanisms, and power delivery.
Proficiency in detailed mechanical design, including 3D computer-aided design and drawings.
Experience designing and manufacturing mechanisms and mechanical actuators.
Experience with electromagnetic interference and electromagnetic compatibility mitigation techniques.
Familiarity with satellite thermal architectures, including heat pipes, phase change materials, contact resistance, and surface finishes, and with fundamental orbital thermal control in a low Earth orbit environment.
Familiarity with launch and low Earth orbit environments, including thermal, shock, vibration, and radiation.
Familiarity with design for test, manufacturability, assembly, and reliability.
Excellent written and verbal communication skills.

Responsibilities

Own mechanical design aspects of phased array antennas, subsystems, and interfaces through all phases of development.
Develop mechanical designs from concept through space flight, including requirements definition, architecture trades and block diagrams, analysis, manufacturing, testing, qualification, and in-orbit support.
Present engineering design review materials to customers and the executive team.
Participate in proposal-writing efforts.

Desired Qualifications

Experience with Python, C++, or other programming languages.
Experience with large, deployable antenna arrays that informs the next generation of on-orbit communications and sensor arrays.
Robotics and control systems experience.
Printed circuit board assembly experience.

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.

We are looking to add a Senior Staff Mechanical Engineer to our Mechanical Engineering team. If you enjoy working in a startup environment and are passionate about developing space hardware for leading-edge communications satellites, we would like to hear from you.

In this position, you will be responsible for mechanical design aspects of Cesium phased array antennas, subsystems, and interfaces through all phases of the development process. The ideal candidate will be versatile and proficient in mechanical analysis, electronics packaging, computer-aided design (CAD), mechanical interfaces, thermal architecture, spacecraft propulsion, deployable and actuated structures, and environmental qualification of spacecraft antennas and payloads. You will be responsible for mechanical designs from concept through space flight including requirements definition, architecture trades and block diagrams, analysis, manufacturing, testing, qualification, and in-orbit support.

The successful candidate will also 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 REQUIREMENTS AND MINIMUM QUALIFICATIONS

Bachelor of Science (BS) in Mechanical or Aerospace Engineering from an accredited university or institution

Minimum of 12 years of experience in space antenna and payload mechanical engineering to include electronics packaging, thermal, shock, vibration, stress dynamics, and cost. A Master's degree may count as two years of experience.

Experience in conducting architectural trade studies including parametric and first-order cost and physical analysis

Experience with professional mechanical and FEA CAD tools, such as Ansys Mechanical, SolidWorks Simulation, and Thermal Desktop

Experience with CNC manufacturing and GD&T

Experience with advanced aerospace manufacturing and materials including sandwich panels and carbon composites, OR experience with high-reliability deployment mechanisms for space applications (including deployment, HDRMs, power delivery, etc.).

Proficiency in detailed mechanical design (3D CAD, drawings, etc.)

Experience designing and manufacturing mechanisms and mechanical actuators

Experience with EMI/EMC mitigation techniques

Familiarity with satellite thermal architectures including heat pipes, phase change materials, contact resistance, and surface finishes as well as fundamental understandings of orbital thermal control in a LEO environment.

Familiarity with launch and LEO environments (thermal, shock, vibe, radiation, etc)

Familiarity with design for test, manufacturability, assembly, and reliability

Excellent written and verbal communication skills

PREFERRED EXPERIENCE

Python, C++, or other programming languages

Experience with large, deployable antenna arrays which drive your vision for the next generation of on-orbit communications and sensor arrays.

Robotics and control systems experience

PCBA experience.

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.

About the Company

CesiumAstro

Designs satellite communications hardware and software

CesiumAstro builds end-to-end space and airborne communications systems, combining hardware and software to connect satellites, UAVs, and ground stations. Its products include active phased array antennas, software-defined radios, and complete RF payloads that enable electronically steered links for inter-satellite communication, high-rate downlinks, lunar communications, and 5G/NTN networks. The company ships plug-and-play, commercially manufactured, full-stack systems designed to be flexible and cost-efficient, rather than bespoke one-off solutions. Its goal is to make space-based connectivity more accessible and adaptable across space, air, and ground networks for both government and commercial customers.

Company size: 501-1,000
Company stage: Debt Financing
Total funding: $1.6B
Headquarters: Bee Cave, TX
Founded: 2017

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