---
title: 'Mechanical Design Engineer at Rondo Energy'
canonical: 'https://feeny.ai/job/mechanical-design-engineer-rondo-energy-alameda-tvcjn3m85af4'
type: 'job'
last_seen: '2026-10-16'
---

# Mechanical Design Engineer at Rondo Energy

- **Company:** Rondo Energy
- **Location:** Alameda, CA
- **Posted:** 2026-09-21
- **Last confirmed live:** 2026-10-16
- **Apply:** https://job-boards.greenhouse.io/rondoenergy/jobs/4715235006

## Job description

We are looking for a highly skilled Mechanical Design Engineer to join our team. This role involves leading the design and development of ceramic, refractory, steel, and insulation assemblies, as well as the mechanical integration of instrumentation and cable routing into the system.  The ideal candidate combines deep technical expertise with hands-on experience bringing complex mechanical designs from concept to production.

What You’ll Do (responsibilities include but are not limited to):

- Design components, assemblies, and systems — including ceramic, refractory, steel, and insulation parts — that are cycled and maintained 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 other sensors into the assembly — 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

What You’ll Bring:

- 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 Points!

- Hands-on instrumentation, cable/harness design experience
- Experience in a construction environment

This role is required to be on-site at our Alameda Headquarters with up to 10% travel to project sites. The estimated annual salary range for this role in the San Francisco Bay Area is $140,000 - $160,000 and it would be eligible for Rondo’s excellent benefits, 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.

## About Rondo Energy

We are transforming industrial decarbonization with our innovative Rondo Heat Battery technology. 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.

Our technology is designed to replace fossil-fired boilers. By enabling industries to adopt renewable energy without costly factory changes, we are accelerating the transition to a sustainable future. With over $160 million in funding and partnerships across critical industrial sectors, Rondo is scaling rapidly to meet global demand.

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.

## About Rondo Energy

## Company Overview
- **One-liner**: Rondo Energy provides low-cost, zero-emission industrial heat and power by converting intermittent renewable electricity into continuous, high-temperature heat using a refractory brick-based thermal battery.
- **Entity Type**: Private (Series B)
- **Headquarters**: Oakland, California, United States
- **Founded**: 2020
- **Founders**: Pete Von Behrens (Co-Founder & CTO)

## Core Business
- **Primary industry**: Energy Technology / Industrial Decarbonization
- **Target customers**: B2B, large-scale industrial facilities in hard-to-abate sectors (food & beverage, cement, fuel, chemical, textile, steel, mining)
- **Mission or purpose statement**: To eliminate CO₂ emissions from the world's most energy-intensive industries by providing the lowest-cost, zero-carbon industrial heat and power.

## Products & Services
- **Rondo Heat Battery (RHB)**: A thermal energy storage system that uses intermittent renewable electricity to heat refractory brick to 1,100–1,500°C. The stored heat is then delivered as continuous superheated air, steam, or electric power at over 98% efficiency. Configurable from 2 MWth to over 100 MWth per unit, with a 40+ year life and unlimited cycles. Serves as a drop-in replacement for fossil-fired boilers.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Total Funding of $162.1M (across Series A, Series B, Debt Financing, and Grants) [linkedin.com](https://www.linkedin.com/company/rondo-energy)
- **Annual Revenue**: Estimated at $47.0M [linkedin.com](https://www.linkedin.com/company/rondo-energy)
- **Notable Investors/Partners**: Breakthrough Energy Ventures, Energy Impact Partners, European Investment Bank, H&M Group Ventures, Microsoft, Aramco Ventures, SABIC [tracxn.com](https://tracxn.com/d/companies/rondoenergy/__a08M2tZ2Rr9f41c1w7isKGjSP8FA4nqNE80sn-BFRek)
- **Growth Signals**: 128 employees (+19.4% YoY), operates in 15 countries, has announced 11 commercial developments including 8 RHB deployments, and has partnerships across 5 industries (food & beverage, cement, fuel, chemical, textile) [rondo.com](https://www.rondo.com/)

## Competitive Advantages
- **Proven, low-cost technology**: Uses centuries-proven refractory brick (not exotic materials) for heat storage, making it cheaper and safer than alternatives like hydrogen or molten salt.
- **High efficiency**: 98% energy efficient from electricity to heat/steam output, with no degradation over unlimited cycles and a 40+ year life.
- **Drop-in replacement**: The Rondo Heat Battery is designed as a direct replacement for fossil-fired boilers, requiring minimal changes to existing industrial facilities.
- **No "Green Premium"**: Claims to be the lowest-cost energy storage solution, reducing energy price volatility risk without a cost premium for being green.
- **Safe and sustainable**: Non-pressurized, free of hazardous chemicals, with no risk of fires or explosions, and eliminates NOx, SOx, and particulate matter emissions.

## Strategic Focus
- **Scale and deployment**: Rondo is focused on scaling its manufacturing and deploying its heat batteries across multiple industries and geographies, with announced projects in the US, Europe, and the Middle East.
- **Partnerships**: Building a network of world-leading partners (including Microsoft, Aramco, SABIC) to accelerate adoption and integrate into global supply chains.
- **Heat as a Service (HaaS)**: Offering flexible commercial models, including both capital projects and a "Heat as a Service" model to lower the barrier to adoption for industrial customers.
- **Global expansion**: Actively hiring in the US (Alameda, CA), Spain (Madrid), and the Middle East (Dubai, UAE; KSA) to support international project delivery.

## Why Work Here
- **Mission-driven impact**: Employees work directly on decarbonizing the hardest-to-abate industrial sectors, with a stated goal of reducing global CO₂ emissions by 1% in 10 years and 15% in 15 years.
- **Strong compensation and benefits**: Covers up to 100% of employee healthcare costs on standard plans, offers a 401(k) matching plan (100% on first 3%, then 50% up to 5%), flexible vacation policy, 12 paid holidays, and a company-wide holiday week in December [rondo.com](https://www.rondo.com/careers).
- **Work flexibility**: Flexible vacation policy and hybrid/remote-friendly roles depending on the position.
- **High employee satisfaction**: Rated 4.4/5.0 on LinkedIn (21 reviews), with strong scores for Compensation (4.5), Culture (4.2), and Career (4.4) [linkedin.com](https://www.linkedin.com/company/rondo-energy).
- **Multidisciplinary engineering culture**: Engineering and R&D teams work with low-cost, durable, proven materials in a novel way, offering hands-on, high-impact work on real-world decarbonization.
- **Global, growing team**: 128 employees across 15 countries, with active hiring in the US, Spain, and the Middle East.

## Sources
1. [rondo.com](https://www.rondo.com/)
2. [rondo.com/careers](https://www.rondo.com/careers)
3. [linkedin.com](https://www.linkedin.com/company/rondo-energy)
4. [tracxn.com](https://tracxn.com/d/companies/rondoenergy/__a08M2tZ2Rr9f41c1w7isKGjSP8FA4nqNE80sn-BFRek)
5. [job-boards.greenhouse.io](http://job-boards.greenhouse.io/rondoenergy)

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- [Project Controls Engineer - Cost & Planning](https://feeny.ai/job/project-controls-engineer-cost-planning-rondo-energy-madrid-m1139kkkynbn) — Madrid, Spain
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