10 First Solar engineering leaders
Gregory Helyer, VP, Technology Development at First Solar, is one of ten First Solar engineering leaders listed here, alongside leaders of advanced research, product, manufacturing engineering, module technology, process development, emerging technologies and reliability. A reader can learn how engineering leaders work at First Solar from people who have held the role.
Professionals to explore
Andrei V. Los
LinkedInExperience: Director, Emerging Technologies · First Solar
Andrei V. Los has been Director, Emerging Technologies at First Solar since April 2026, based in Perrysburg, Ohio, with a profile headline citing perovskite and tandem technology. Andrei V. Los was Sr. Manager Emerging Technologies at First Solar from 2024 to 2026, a title citing tandem technology and perovskite physics, and Senior Member of Technical Staff, Disruptive Technologies there from 2019 to 2024.
Bill Huber
LinkedInExperience: VP, Advanced Research · First Solar
Bill Huber has been VP, Advanced Research at First Solar since November 2020, based in the Toledo, Ohio Metropolitan Area, with the profile headline Head of Advanced Research at First Solar. Bill Huber was Director, Technology at First Solar from 2015 to 2020, Principal Scientist at GE Research from 2001 to 2015 and Postdoctoral Research Fellow at NIST from 1999 to 2001.
Chong W. Lim
LinkedInExperience: Director, Manufacturing Engineering · First Solar
Chong W. Lim has been Director, Manufacturing Engineering at First Solar since August 2012, based in Holland, Ohio, and working in Toledo. Chong W. Lim was Manager, Process Development at First Solar from 2009 to 2012, Sr. Research Engineer at Numonyx from 2008 to 2009 and Sr. Process Engineer at Intel from 2004 to 2008.
Gregory Helyer
LinkedInExperience: VP, Technology Development · First Solar
Gregory Helyer has been VP, Technology Development at First Solar since May 2012, based in Perrysburg, Ohio, and also lists Director, Technology Development there since 2007. Gregory Helyer was Manager, Process Development at First Solar from 2000 to 2007.
Jay Mehta
LinkedInExperience: Head of Manufacturing Engineering, Integration & Automation · First Solar
Jay Mehta has been Head of Manufacturing Engineering, Integration & Automation at First Solar since December 2020, based in the Toledo, Ohio Metropolitan Area, with the profile headline Head of Global Manufacturing Engineering. Jay Mehta was Director Of Manufacturing Engineering at First Solar from 2015 to 2021, Global Manager, Process Integration there from 2012 to 2015 and Global Efficiency / Yield Engineer from 2008 to 2011.
Joseph Lindgren
LinkedInExperience: Director Module Technology · First Solar
Joseph Lindgren has been Director Module Technology at First Solar since April 2023, based in Perrysburg, Ohio, and lists semiconductor process and equipment development as specialties. Joseph Lindgren was Senior Manager Module Development at First Solar from 2021 to 2023, Manager Module Development there from 2019 to 2021 and Integration Manager from 2014 to 2019.
Kevin Troyer
LinkedInExperience: Director - Process Development · First Solar
Kevin Troyer has been Director - Process Development at First Solar since March 2023, based in Perrysburg, Ohio. Kevin Troyer was Manager - Process Integration at First Solar from 2017 to 2023, Senior Integration Engineer there from 2011 to 2017, and Technology Development Group Leader and Senior Process Development Engineer at Intel from 2002 to 2011.
Madhu Sayala
LinkedInExperience: Director, Reliability Engineering · First Solar
Madhu Sayala was Director, Reliability Engineering at First Solar from 2006 to 2013, a role that has ended, working in Perrysburg, Ohio. Madhu Sayala was Director, Reliability Engineering at TS Solar GmbH from 2013 to 2016, Principal Engineer/Senior Manager at NEXT Energy Technologies from 2017 to 2020 and Engineering Manager at Texas Instruments from 1997 to 2006.
Pat Buehler
LinkedInExperience: Chief Product Officer · First Solar
Pat Buehler has been Chief Product Officer at First Solar since December 2022, based in Perrysburg, Ohio, and also lists Chief Quality and Reliability Officer there since 2020. Pat Buehler was VP, Global Quality & Reliability at First Solar from 2019 to 2020, Sr Director, Global Quality & Reliability there from 2017 to 2019 and Director, Global Quality & Reliability Assurance from 2014 to 2017.
Steve Wozniak
LinkedInExperience: Chief Engineer / Director - Project Development & Execution · First Solar
Steve Wozniak was Chief Engineer / Director - Project Development & Execution at First Solar from 2010 to 2021, a role that has ended, and Electrical Engineering Manager there from 2010 to 2013. Steve Wozniak has been Vice President of Engineering at Silicon Ranch Corporation since November 2022, based in Phoenix, Arizona, and was VP of Engineering at Ecoplexus from 2021 to 2022.
Choose the right perspective
Match the person's engineering area, whether research and technology development, product and reliability, manufacturing engineering, module and process development, or project engineering, to the decision you face. Check whether each role is current or has ended to judge how recent the person's view of it is.
Questions to take into the conversation
- 01What did you focus on first when you took on your engineering role at First Solar?
- 02How do you move a new cell or module technology from the lab into high volume production?
- 03What have you learned about balancing module efficiency gains against manufacturing cost and reliability?
Reaching First Solar engineering leaders
How can I contact one of these First Solar engineering leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: First Solar, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach First Solar engineering leaders?
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Can an AI agent ask one of these First Solar engineering leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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