We are looking to add a Senior Staff Mechanical Engineer to our team. If you are great at what you do, 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.
In this position, you will be responsible for mechanical designs of Cesium products through all phases of the development process. The ideal candidate will be proficient in electronics packaging design, mechanical simulations and analyses, computer-aided design (CAD), aircraft mechanical interfaces, and environmental qualification of electronic assemblies (MIL-STD-810 and DO-160G).
As a Cesium 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 field support of Cesium's products. 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, environmental compatibility analysis, geometric dimensioning and tolerancing (GD&T), finite element analysis (FEA), and cost analysis to develop, validate, and optimize mechanical designs.
The successful candidate will also present engineering design review materials to our customers and leadership team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.
JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS
BS or MS in Mechanical Engineering, Aerospace Engineering, or a related technical field.
Minimum of 12 years of industry experience in design and analysis of avionics or ruggedized embedded electronics packaging, including thermal, vibration, and stress dynamics or in aircraft structures and mechanisms. A Master’s degree may count as two years of experience.
Familiarity with electronics assemblies and experience working closely with electrical engineers.
Familiarity with design for test, manufacturability, assembly, and reliability.
Experience with CAD software packages, such as SolidWorks.
Experience with professional mechanical and FEA CAD tools, such as Ansys.
Experience with CNC manufacturing.
Experience with EMI/EMC mitigation techniques.
Excellent written and verbal communication skills.
PREFERRED EXPERIENCE
Aerospace industry design, development, and qualification.
Proven experience as a technical lead on a program or project.
Experience with aircraft/airframe integration.
Experience with FAA certification to DO-160G requirements or environmental qualification to MIL-STD-810 requirements.
Skills Required
- Bachelor of Science or Master of Science degree in Mechanical or Aerospace Engineering from an accredited institution
- 12 years of experience in communications satellite structures and mechanisms design across the development lifecycle
- At least 5 years of experience leading technical teams
- Significant contributions to multiple flight missions and lead ownership of at least one full space vehicle mechanical development cycle
- Ability to support subsystem leads with clear mechanical interfaces and cross-functional alignment
- Hands-on experience in satellite and large instrument assembly, integration, and test leading to design implementation
- Experience with mechanism failures and recovery during testing and operations
- At least one experience recovering from a structural failure during environmental testing
- Strong fundamentals in mechanics of materials, hand calculations, and engineering rules of thumb
- Experience conducting architectural trade studies with parametric, cost, and physical analysis
- Experience reviewing structural and thermal analyses for requirements compliance and manufacturability
- Experience with professional mechanical and FEA CAD tools such as SolidWorks Simulation, Ansys, and Nastran
- Experience designing for manufacturing and cost
- Expertise in CNC manufacturing and GD&T, including implementing and critiquing mechanical drawings
- Experience designing and manufacturing composite sandwich panels for satellite structures
- Experience designing spacecraft primary and secondary structures using varied materials
- Familiarity with design for test, manufacturability, assembly, and reliability
- Familiarity with spacecraft assembly, integration, and test
- Hands-on experience supporting vibration, shock, and thermal vacuum environmental test campaigns
- Experience with LEO, GEO, and beyond
- Experience spanning CubeSats and SmallSats through large GEO satellites
- Python or other scripting capability
- Experience with multiple spacecraft structural and mechanical architectures
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.
-
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.
-
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.
-
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.
Gallery







