Senior Mechanical Engineer I

Roman Health Pharmacy LLC; Austin (TX); On-site; USD 80,000 - 120,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

HSA and FSA options

Life and disability insurance

Retirement plans

Company stock options

Job summary

CesiumAstro is looking for a Senior Mechanical Engineer I to join their Mechanical Engineering team in Austin, Texas. This role requires expertise in mechanical design, with responsibilities for the development of advanced communication satellites. Candidates should have a Bachelor of Science in Mechanical or Aerospace Engineering and at least 4 years of experience in related fields.

The successful candidate will engage in various mechanical design aspects, including antenna design, and must have excellent communication skills to present reviews and participate in proposals. Benefits include company stock options and a comprehensive health package.

Qualifications

• Minimum of 4 years of experience in space antenna and payload mechanical engineering.
• Experience with architectural trade studies including cost and physical analysis.
• Proficiency in detailed mechanical design using CAD.

Responsibilities

• Responsible for mechanical design aspects of phased array antennas.
• Present engineering design reviews to customers and executive teams.
• Participate in proposal-writing efforts.

Skills

Mechanical design

Electronics packaging

Computer-aided design (CAD)

Thermal architecture

Spacecraft propulsion

Environmental qualification

Mechanical analysis

Excellent communication

Education

Bachelor of Science in Mechanical or Aerospace Engineering

Tools

Ansys Mechanical

SolidWorks Simulation

Thermal Desktop

Job 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.

We are looking to add a Senior Mechanical Engineer I 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 4 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, vibration, 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.