Rondo is accelerating industry’s transition to lower-cost, zero-carbon heat and power.
Our Rondo Heat Batteries turn low-cost renewable electricity into continuous, high-temperature heat and power, enabling industrial facilities to replace fossil-fired boilers without costly process changes. The result is lower-cost, zero-carbon industrial energy delivered safely, reliably, and at 98% efficiency.
Rondo is commercially deployed and rapidly scaling, today. Backed by world-class industrial leaders and investors — including Breakthrough Energy, Energy Impact Partners, Rio Tinto, Aramco, SABIC, SCG, TITAN, Microsoft, H&M, and John Doerr — Rondo is building the next generation of industrial energy infrastructure at global scale.
We are looking for a customer-centric Application Engineer to join our team and help us repower industrial heat at a scale. In this role, you will work closely with the Rondo Mechanical Engineering team, external partners, and prospective customers to define complete system solutions which deliver zero carbon, reliable heat for customer projects. You will conduct thermo-economic analyses to identify configurations which maximize the value created by Rondo’s technology and develop the technical information critical to developing a robust pipeline of project opportunities.
What You Will Do (key responsibilities for this role include but are not limited to):
What You Will Bring:
Bonus Points:
What We Offer:
This role will be hybrid, and based in Madrid Spain.
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.
Rondo mayuse AI-assisted tools to help screen and evaluate applications as part of our hiring process. All hiring decisions are made by humans
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.

We're hiring!! Rondo is delivering the world's lowest cost zero-carbon industrial heat. The Rondo Heat Battery powers industrial processes with renewable electricity, cutting energy costs and eliminating emissions. We deliver complete solutions to large-scale industrial energy needs worldwide - both as major capital projects and on a Heat as a Service basis. The Rondo Heat Battery provides temperatures up to 1,500°C, at less than half the cost and twice the efficiency of hydrogen.