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, 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.
Skills Required
- Bachelor of Science in Mechanical or Aerospace Engineering
- Minimum of 4 years experience in space antenna and payload mechanical engineering (electronics packaging, thermal, shock, vibration, stress dynamics, cost)
- Experience conducting architectural trade studies including parametric and first-order cost and physical analysis
- Experience with professional mechanical and FEA CAD tools (Ansys Mechanical, SolidWorks Simulation, Thermal Desktop)
- Experience with CNC manufacturing and GD&T
- Experience with advanced aerospace manufacturing and materials (sandwich panels, carbon composites) OR high-reliability deployment mechanisms for space applications (deployment, HDRMs, power delivery)
- Proficiency in detailed mechanical design (3D CAD, drawings)
- Experience designing and manufacturing mechanisms and mechanical actuators
- Experience with EMI/EMC mitigation techniques
- Familiarity with satellite thermal architectures (heat pipes, phase change materials, contact resistance, surface finishes) and orbital thermal control in LEO
- Familiarity with launch and LEO environments (thermal, shock, vibe, radiation)
- Familiarity with design for test, manufacturability, assembly, and reliability
- Excellent written and verbal communication skills
- Python, C++, or other programming languages
- Experience with large, deployable antenna arrays
- Robotics and control systems experience
- PCBA experience
CesiumAstro Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CesiumAstro and has not been reviewed or approved by CesiumAstro.
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Healthcare Strength — Health coverage includes medical, dental, vision, life and disability insurance, plus FSAs and mental health benefits. Feedback suggests the health package is comprehensive for a growth-stage aerospace firm.
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Retirement Support — Offerings include a 401(k) with company matching and other retirement-plan elements. Feedback suggests core retirement mechanisms are in place alongside standard financial benefits.
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Leave & Time Off Breadth — Generous PTO, paid holidays, paid sick days, and bereavement leave are included. Feedback suggests time-off options are broad on paper across multiple leave types.
CesiumAstro Insights
What We Do
We build high-throughput, plug-and-play phased array communication payloads for space and airborne platforms. CesiumAstro’s full-stack, multi-mission hardware and software products enable a diverse range of commercial and defense objectives. Full-system engineering design is at the heart of every CesiumAstro product. We deliver high-performance solutions under rapid development timelines.
Why Work With Us
At CesiumAstro, we’re a team. We’re passionate, respectful, and determined colleagues ready to help at a moment’s notice. We’re mentors excited to enable our peers with the knowledge they need to succeed. Together, we’re visionaries committing to building memories that will last a lifetime.
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