Software Developer for PV Systems (m/f/d)

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.”

About the Role

To strengthen our team, we are looking for an experienced and motivated software development professional who will contribute to the further development of intelligent solutions for the planning, design, and optimization of photovoltaic systems . In this role, you will develop and use technical tools for PV systems, continuously improve the overall code quality of our products, and actively shape the technical future of our applications.

You will work at the interface between R&D , internal users, internal and external development teams, and external service providers. This position combines technical depth, architectural thinking, and strong communication skills with the goal of creating efficient and future-proof solutions that support the long-term growth of PV power generation .

Your Responsibilities

• Develop, improve, and use the required tools for the planning, design, and further development of PV systems .
• Identify the most efficient approaches to solve technical and product-specific challenges and implement them in a sustainable and future-proof way.
• Conduct frequent code reviews and ensure high standards of maintainability, readability, and reliability.
• Continuously improve the overall code quality and technical excellence of our products.
• Work closely with internal and external development teams on a daily basis.
• Facilitate effective communication between R&D , internal users, software developers, and external service providers.
• Coordinate and guide external partners to ensure efficient and high-quality collaboration.
• Take part in product roadmap planning and technical decision-making sessions.
• Support the design, evolution, and establishment of a solid application architecture .
• Deliver efficient results and actively contribute to the sustainable growth of photovoltaics .

Your Profile

• At least 5 years of professional experience in software development using a high-level programming language, preferably Python .
• Solid understanding of object-oriented programming .
• Experience with relational databases .
• Experience in creating and further developing software and application architectures .
• Strong analytical skills with the ability to develop pragmatic and scalable solutions for complex technical challenges.
• Independent, solution-oriented, and quality-driven way of working.
• Strong communication skills and the ability to collaborate with a variety of internal and external stakeholders.

Beneficial Experience

• Hands‑on experience with DevOps tools such as Terraform, orchestration tools, or similar technologies
• Experience with clustering algorithms , graph libraries , or CAD applications
• Experience working with distributed teams

We Offer

• A responsible and diverse role in an international environment
• Opportunities for active involvement and process improvement
• Flat hierarchies and short decision‑making paths
• Attractive compensation and additional benefits
• The chance to influence technical standards, processes, and architectures in the long term
• A meaningful role with a direct contribution to the energy transition and the growth of solar energy

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

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