Systems Modeling Engineer

Rondo Energy's mission is to eliminate 15% of global CO2 emissions in 15 years.

To accomplish this mission, Rondo is deploying low-cost, zero-carbon Rondo Heat Batteries to accelerate the deployment of renewable energy and to significantly decarbonize industrial processes that are commonly thought of as "difficult-to-decarbonize". Our Heat Batteries charge from intermittent renewables to provide high temperature, continuous heat for customers safely, reliably, at an unprecedented 98% efficiency - and at a cost point that is lower than any other method.

We are seeking a Systems Modeling Engineer to build one dimensional models of heat batteries and supporting systems. You will be responsible for coding, validating, optimizing, and using 1D models to enable controls development, inform product design, and optimize operation.

Join our team, and together we can reduce global CO₂ emissions by 1% in 10 years, and by 15% in 15 years!

What You Will Do (key responsibilities for this role include but are not limited to)

• Develop one-dimensional, transient models of heat battery components and assemble them into system models
• Validate your models with experimental data and higher order simulations such as CFD
• Interpret requirements from controls engineers and create hooks into physical models that enable controls development and hardware in the loop testing
• Analyze and interpret simulation results, providing insights and recommendations to optimize design and performance for internal customers in product design, applications engineering, marketing, quality, reliability…etc.

What You Will Bring

• Bachelor’s or higher degree in Mechanical Engineering or a related field
• 5+ years of experience in systems modeling with a proven ability to create models of various levels of complexity
• Strong expertise in heat transfer and thermodynamics
• Expertise with a range of software tools and languages such as Matlab, Simulink, and Python
• Excellent analytical and problem-solving skills, with strong attention to detail in modeling and data interpretation

Bonus Points!

• Digital Twin and HIL testing model creation
• Experience with radiation modeling in thermal simulations
• Background in modeling heat exchangers, particularly boilers
• Familiarity with air handling equipment modeling, including fans, louvers, and ductwork
• Knowledge of HVAC system simulations and airflow optimization

What We Offer

• Comprehensive Medical Benefits
• Dental & Vision Benefits
• Life Insurance and ADD
• Up to 13 paid holidays per year, in addition to a company week-long holiday in December
• Flexible time off policy
• Catered lunches on-site
• 401(k) plan with company match
• Rondo HQ is close to Oakland airport - one block from the Bay - and has stunning Bay views!

This role is on-site and necessitates being on-site at our Alameda HQ 4-5x per week. The estimated annual salary range for this role is $145,000 to $175,000 and it would be eligible for Rondo's excellent benefits listed above plus additional compensation in the form of equity. Please note that some pay bands may have wide ranges of compensation to accommodate candidates' diverse sets of skill levels and experience.

Rondo Energy is an equal opportunity employer. We strive to create a supportive and inclusive workplace where contributions are valued and celebrated, and our employees thrive by being themselves and are inspired to do their best work. We seek applicants of all backgrounds and identities, across race, color, ethnicity, national origin or ancestry, citizenship, religion, sex, sexual orientation, gender identity or expression, veteran status, marital status, pregnancy or parental status, or disability. Applicants will not be discriminated against based on these or other protected categories or social identities.

Rondo is committed to the full inclusion of all applicants. If reasonable accommodation is needed to participate in the interview process, please let our recruiting team know.

We proactively work to design hiring processes that promote equity and inclusion while mitigating bias.

Note to Recruitment Agencies: Rondo does not accept unsolicited agency resumes. Furthermore, Rondo Energy does not pay placement fees for candidates submitted by any agency other than its approved partners.