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 and quality is at the center of how we get there.
We are building a hardware product that has to be right the first time, every time — at scale, across a general supply chain, with no room for per-project redesign or one-off fixes. As Supplier Quality Engineer you will own the quality of our mechanical component supply base across Europe and Asia,



covering both metallic and refractory components, ensuring our suppliers can meet the repeatability, traceability, and scale demands of a product that needs to ship like a manufactured good, not a bespoke project. This is not a compliance or audit role. It is a hands‑on, technically demanding position for someone who understands how parts are made — whether that’s structural metal fabrications or dense refractory bricks — what failure looks like before it happens, and how to build a supply chain that learns.
What You Will Do
(key responsibilities for this role include but are not limited to):
- Own supplier qualification for mechanical components — structural, thermal, electromechanical, and refractory — across our European and Asian supply base, including developing and implementing a robust qualification process, and ongoing performance monitoring.
- Be on-site at suppliers when it matters. Witness first

📌 Supplier Quality Engineer, Mechanical Systems (España)
🏢 Rondo Energy
📍 España