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Salary: USD 140,000 - 160,000 / annual
Rondo Energy is seeking a Mechanical Design Engineer to join its team in Alameda, California. The company is transforming industrial decarbonization with its Rondo Heat Battery technology—a low-cost, zero-carbon solution that charges from intermittent renewables to provide high-temperature, continuous heat at 98% efficiency for customers. With over $160 million in funding and rapid scaling, Rondo is replacing fossil-fired boilers and enabling industries to adopt renewable energy without costly factory changes.
In this role, you will lead the design and development of ceramic, refractory, steel, and insulation assemblies, as well as the mechanical integration of instrumentation and cable routing into high-temperature systems. You will take complex mechanical designs from concept through production, combining deep technical expertise with hands-on experience.
Key responsibilities include:
- Design components, assemblies, and systems—including ceramic, refractory, steel, and insulation parts—that cycle and operate at high temperatures up to 1500°C
- Conduct FEA and 1D thermal and fluid-flow analysis to confirm mechanical performance and correlate against test data; contribute to FMEA activities to identify and mitigate failure risks
- Drive rapid prototyping and fast build-test-learn iteration cycles to quickly validate designs and accelerate maturity
- Apply GD&T principles and tolerance stack-up analysis to critical features
- Specify and mechanically integrate high-temperature measurement devices and sensors into assemblies, including mounting, thermal/electrical isolation, and cable routing in collaboration with electrical and controls engineers
- Utilize CAD and PLM software (SolidWorks preferred) for design, documentation, and configuration control
- Formulate subsystem requirements and prepare documentation for external suppliers and stakeholders
- Lead and participate in design reviews, schedule estimation, and progress reporting to cross-functional teams
The role is required to be on-site at Alameda headquarters with up to 10% travel to project sites.
REQUIREMENTS:
- Bachelor's or Master's degree in Mechanical Engineering or related discipline
- 3–5 years of mechanical design engineering experience, taking designs from concept through production
- Proficiency in FEA and 1D thermal analysis; CFD experience a plus
- Strong fundamentals in GD&T and tolerance stack-ups
- Design experience with high-temperature materials and thermal-mechanical systems strongly preferred
- Strong communication and collaboration skills
BONUS:
- Hands-on instrumentation, cable/harness design experience
- Experience in a construction environment
