Product Engineer

At Tandem PV, we are a team of people who are passionate about building a more sustainable world by bringing 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 to work in our new pilot manufacturing facility.

Job Summary:

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. The 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.

To be great at this role, you will have:

• Lead the design and improvement of solar module products while introducing new materials & processes

• Define and update specifications for materials & processes

• Set up prototyping and field test programs

• Plan/execute material & product qualification, reliability & 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 the test and certification processes.

• Manage as the key interface between suppliers, supply chain & procurement, R&D, process, and manufacturing teams to support the transition of new materials/products from prototype to mass production

• Analyze data regarding material & process performance using statistical tools

• Recommend design, material, and process changes for performance, reliability, or cost improvement.

• Lead scale-up processes from lab-scale R&D to pilot/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.

Qualifications:

• 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.

Preferred Experience:

• 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.

What we offer:

An awesome team of dedicated technologists changing the way the world is powered! If that’s not enough, we’ll take good care of you and your family with:

• Flexible PTO

• Healthcare coverage

• Life insurance

• Long-term & short-term disability

• Parental leave

• Meaningful equity

Tandem PV uses perovskite & silicon mechanically-stacked tandems to upgrade silicon solar panels, sharply decreasing installed systems costs, significantly increasing module manufacturing profit margins, and opening up vast new solar markets in the US and worldwide. TPV was co-founded by Stanford PhDs Colin Bailie and Chris Eberspacher; is advised by industry experts from Corning, First Solar, Vivint Solar, and Kateeva; has raised more than $50M in Series A funding. We were recently recognized as the Best Pre-Commercial Venture of 2025 by the Industry Growth Forum (IGF)

We are a team of people who are passionate about building a more sustainable world by delivering a new generation of solar panels to the market. We are constantly growing and are always looking for dedicated, hardworking, and empathetic teammates.

Tandem PV is an equal opportunity employer. All qualified applicants are encouraged to apply.