What You'll Do

Lead process engineering activities for key TOPCon unit processes, including tunnel oxide, polysilicon deposition, diffusion, passivation, and/or metallization

Provide technical leadership and mentorship to process engineers supporting your assigned process areas

Drive process stability and continuous improvement, using data to identify and close yield and efficiency gaps

Establish and maintain process baselines, control plans, and process documentation for owned process steps

Partner with Equipment, Metrology, and Quality teams to ensure process and tool readiness, control, and compliance

Lead root cause analysis for yield excursions, efficiency losses, and cell performance deviations within your process area

Support technology transfer and process qualification activities for new tools, materials, and process flows

Collaborate with R&D and device engineering on next-generation process development and integration

Represent your process area in cross-functional technical reviews and discussions

Who You Are

A TOPCon practitioner — you know the technology well and have hands-on development and manufacturing experience to back it up

A technical contributor who can operate effectively at both the bench and in cross-functional discussions

Rigorous and methodical in your approach to process development, with a strong instinct for where problems are hiding

Collaborative and effective across engineering disciplines, operations, and external partners

Energized by the challenge of scaling advanced cell technology in a new fab environment

Qualifications

MS or BS in Materials Science, Chemical Engineering, Electrical Engineering, Physics, or a related field

6+ years of process engineering experience in solar cell fabrication, with specific experience in TOPCon technology

Solid understanding of TOPCon unit processes including tunnel oxide growth, polysilicon deposition, doping, and/or contact formation

Hands-on experience with PECVD, LPCVD, diffusion furnaces, ALD, or related toolsets

Working knowledge of process integration, yield analysis, and statistical process control

Experience mentoring or providing technical guidance to junior engineers

Exposure to technology transfer activities from development to high-volume production

About T1 Energy

At T1 Energy (NYSE: TE), we build energy. We are an American solar manufacturer building the future of energy abundance. From our headquarters in Austin, Texas, we’re pioneering a domestic solar supply chain with one mission: to invigorate America with scalable, reliable, and low-cost energy.

We started with G1_Dallas, one of the most advanced solar manufacturing facilities in the world. The 5GW facility is located in Wilmer, Texas. It has the capacity to produce more than 20,000 solar modules a day for solar farms that power American homes, businesses, and keep our energy grids resilient.

Next is G2_Austin: Our new solar cell fab in Rockdale, Texas. Its first 2.1GW phase is designed to produce next-generation TOPCon cells beginning in 2027. As the fab grows, it’s expected to support up to 1,800 manufacturing jobs. Modules assembled at G1 can run on cells from G2.

What comes after G2? Come join us and help figure that out. And then build it. The sun has always shone on America. Now you can turn it into abundant electricity.

The T1 Way

We’re all in on the mission, and we pursue it as one team. We move fast, own our results, and treat each other with respect. Egos stay at the door: no one is too senior to roll up their sleeves, and no idea is too small to share. Be sharp, be honest, be human. If you can hold the line and keep a sense of humor, you’ll fit right in.

T1 Energy is an Equal Opportunity Employer. We are committed to creating an inclusive environment for all employees and applicants and do not discriminate on the basis of any legally protected characteristics.