Senior Deposition Process Engineer

The Role

T1 Energy is looking to hire a Thermal Process Engineer to join our team supporting the process development and ramp of our G2 solar cell fab. This is a hands-on, high-impact role for a process engineer who knows their way around CVD toolsets and thermal systems and is ready to help build one of the most ambitious domestic solar manufacturing operations in the country.

You'll be working at the leading edge of solar cell fab, owning critical deposition and thermal processes that directly impact cell efficiency, yield, and throughput. If you've spent your career developing and optimizing PECVD, LPCVD, and thermal processes in a semiconductor or photovoltaic environment and you're ready to do it at scale, this is the role for you.

What You'll Do

• Develop, optimize, and own thermal and vapor deposition processes for solar cell fabrication, including PECVD and LPCVD toolsets.

• Support process integration across the G2 solar cell fab, working closely with equipment, integration, and yield engineering teams.

• Drive process characterization, DOE execution, and data analysis to improve film quality, uniformity, and throughput.

• Troubleshoot process excursions and equipment issues on CVD and thermal tools, identifying root causes and implementing corrective actions.

• Collaborate with equipment engineers and tool vendors to qualify new tools, execute preventive maintenance reviews, and maintain process baselines.

• Develop and maintain detailed process documentation, including recipes, SOPs, and control plans.

• Monitor process performance through statistical process control (SPC) and respond to out-of-control conditions with urgency.

• Support technology transfer from development to high-volume manufacturing, ensuring processes are robust, repeatable, and scalable.

• Partner with cross-functional teams including device engineering, materials, and operations to meet cell efficiency and production targets.

Who You Are

• Deeply knowledgeable in CVD processes — PECVD and LPCVD are your home turf.

• Hands-on and comfortable getting into the details of both process and equipment to solve problems quickly.

• Well versed in thermodynamics, crystal lattice chemistry, principles of diffusion and chemical kinetics, and extreme prescience in quantum chemistry.

• Data-driven in your approach to process development and troubleshooting — you let the numbers lead.

• Able to work effectively in a fast-moving fab environment where priorities shift and deadlines are real.

• A strong collaborator who can work across engineering disciplines and communicate technical findings clearly to varied audiences.

• Energized by the challenge of building something new and scaling it to high-volume production.

Qualifications

• Bachelor's degree or higher in Chemical Engineering, Materials Science, Electrical Engineering, Physics, or a related field.

• 5+ years of process engineering experience in semiconductor, photovoltaic, or advanced manufacturing environments.

• Hands-on experience with PECVD and LPCVD toolsets is required.

• Strong working knowledge of vapor deposition processes and thermal tools and processes.

• Experience with process characterization, DOE methodology, and statistical process control (SPC).

• Familiarity with solar cell fabrication processes and device physics is a strong plus.

• Proficiency with data analysis tools (e.g., Python, JMP, Excel) for process monitoring and optimization.

• Strong documentation skills and experience writing SOPs, process specs, and engineering reports.

• Ability to support a fab environment, including occasional travel to the G2 facility as needed.

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.