Powering the Future of Solar Technology with Qcells

At Qcells, we don’t just envision a greener future—we actively create it.
As a global leader in photovoltaic technology and a proud member of the Hanwha Group, a FORTUNE® Global 500 enterprise, we are dedicated to shaping the next generation of solar energy. Our Center for Innovation, Technology and Quality in Thalheim (near Leipzig/Halle/Berlin) is home to over 200 experts driving advancements in solar cells and modules, “Engineered in Germany.”

We are currently looking for an outstanding Principal Expert for Integration & Failure Analysis to strengthen our R&D team and drive the development of next-generation perovskite-silicon tandem solar cells. This role is designed for a deep technical expert who drives innovation through scientific excellence and system-level understanding.

Your Role: Deep Technical Leadership & System-Level Understanding

As a Principal Expert, you will act as the highest-level technical authority in integration and failure analysis topics. You will focus on complex problem solving, deep physics understanding, and technology breakthroughs across perovskite-silicon tandem solar cell architectures, without primary people management responsibilities.

Your Key Responsibilities:

Technical Excellence & Problem Solving:

• Lead the resolution of most complex and critical integration and performance issues
• Develop a deep understanding of process–material–device interactions, including perovskite absorber layers and interfaces, across tandem architectures
• Identify fundamental performance limitations and hidden loss mechanisms

Advanced Failure Analysis:

• Own and drive high-impact deep-dive analyses for critical yield and reliability challenges
• Combine process, metrology, and PL/EL datasets to uncover non-obvious root causes
• Define new methodologies and standards for failure analysis at scale

Scientific & Methodological Leadership:

• Establish best-in-class approaches for data analysis, root cause methodology, and system understanding
• Drive physics-based interpretation of experimental and production data
• Introduce new concepts, tools, and analytical frameworks

Cross-Functional Technical Influence:

• Act as key technical advisor across R&D, characterization, and production
• Challenge assumptions and guide teams toward robust technical solutions
• Contribute strongly to technology strategy and architectural decisions

Your Profile: World-Class Expertise

We are looking for a recognized expert with deep technical knowledge and a strong track record of solving complex problems.

Your Qualifications:

• PhD in physics, materials science, engineering, or related field (strongly required)
• 10+ years of experience in photovoltaics, semiconductors, or advanced device technologies
• Proven expertise in integration, device physics, and/or failure analysis
• Strong experience with complex data interpretation and statistical analysis
• Deep understanding of process-device-performance relationships

Highly desirable (not mandatory):

• Experience with perovskite solar cells or perovskite-silicon tandem technologies
• Understanding of perovskite-specific degradation, interfaces, or material interactions
• Demonstrated track record of solving high-impact technical challenges
• Strong ability to influence without formal authority
• Excellent communication skills in an international environment

Why Qcells?

• Take a key technical authority role in next-generation perovskite-silicon tandem solar technologies
• Work on cutting-edge tandem architectures
• Collaborate with top experts in a highly innovative environment
• Access to industrial-scale data and advanced characterization capabilities

Ready to Shape the Future of Solar Energy?

If you are driven by solving the hardest technical challenges and pushing the limits of solar cell performance, we want to hear from you.

Apply today and join a team that’s redefining the solar industry!

Qcells is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Please send your application including Cover Letter, CV and References to: 

hr-techgroup@qcells.eu 

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Hanwha Q CELLS GmbH
OT Thalheim
Sonnenallee 17 - 21
06766 Bitterfeld-Wolfen
Deutschland

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Schlüsselwörter: MINT / STEM, Solar, Photovoltaik, Forschung, Entwicklung, F&E / R&D, Physik, Chemie, Ingenieur, Wissenschaftler, Chemiker, Physiker, Labor, MSA, ISO9001, ISO17025, ISO45001, TRGS 526