Product Engineer

At Tandem PV we are a team of people who are passionate about building a more sustainable world by bringing more cost effective solar panels onto the market. We’re scaling metal-halide perovskite solar technology to make best‑in‑class mechanically stacked tandem modules. We have built efficient, durable cells, monolithic multi‑cell submodules, and packaged modules with our scalable, low‑cost process. Our next focus is expanding our team and building a pilot manufacturing facility.

Sounds like a lot, right? It is, and that’s why we need you to join the team!

We are seeking an experienced Product Engineer to take new module products from concept through pilot and commercial production, working closely with R&D, manufacturing, supply chain and quality. Main focus will be to ensure our modules meet performance, cost, manufacturability, reliability, and certification goals - driving innovation while supporting high‑volume output, with a strong emphasis on integrating research and development (R&D) initiatives into high volume industrial production.

The ideal candidate will have a solid background in both R&D, pilot and high‑volume manufacturing processes in solar energy.

• Lead the design and improvement of solar module products and the introduction of new materials and processes.
• Define and update specifications for materials and processes and set up prototyping and field test programs.
• Plan and execute material and product qualification, reliability and certification programs following industry standards (e.g. IEC 61215/61730, Thresher test(RETC), UL, TUV).
• Ensure compliance with industry standards, maintain documentation and support third‑party test labs during test and certification process.
• Manage and act as the key interface between suppliers, supply chain and procurement, R&D, process and manufacturing teams to support the transition of new materials and products from prototype to mass production and continuous improvement.
• Analyze data regarding material and process performance using statistical tools and recommend design, material and process changes for performance, reliability or cost improvement.
• Lead scale‑up processes from lab‑scale R&D to pilot and commercial production, addressing technical challenges and optimizing performance.
• Develop and train production team personnel, including supervisors, technicians, and line workers.
• Coordinate with quality assurance and engineering teams to troubleshoot product issues and implement corrective/preventive actions.

• Bachelor’s degree in Mechanical, Electrical, Industrial, Chemical Engineering, Materials Science, or a related field and/or comparable work experience in solar energy, semiconductors or other relevant field
• Proven track record of introducing new products, materials and processes in industrial production and R&D operations simultaneously.
• Understanding of PV modules, solar cells, or thin‑film manufacturing technologies is desirable.
• Experience in selecting, evaluating, and characterizing solar module components and materials including but not limited to frames (and frame profiles), filler sheets (polyolefins, EVA, PVB), interconnect ribbons (soldered and ECA), and conductive silver pastes.
• Able to develop and maintain module durability characterization including but not limited to 85/85, High Pot, Accelerated Aging, Outdoor Testing, I‑V, and BOS reliability/durability.
• Improve product quality through detailed and systematic problem identification/failure analysis.
• Experience in process engineering, lean manufacturing, and Six Sigma is a plus.
• Strong leadership, communication, and team‑building skills.
• Ability to work in a fast‑paced, dynamic, and highly collaborative environment.

• Prior involvement in scaling up solar production from lab to mass production.
• Knowledge of automated production systems and data‑driven manufacturing (e.g. MES, SPC tools).
• Familiarity with global manufacturing standards such as ISO 9001, ISO 14001, or IEC certification.

Tandem PV uses perovskite & silicon mechanically‑stacked tandems to upgrade silicon solar panels, sharply decreasing installed…