Software Developer – Photovoltaic Systems

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.Familiarity with JavaScript, AWS, cloud concepts, CI/CD, and Git.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 technologiesExperience with clustering algorithms, graph libraries, or CAD applicationsExperience working with distributed teams We Offer A responsible and diverse role in an international environmentOpportunities for active involvement and process improvementFlat hierarchies and short decision-making pathsAttractive compensation and additional benefitsThe chance to influence technical standards, processes, and architectures in the long termA meaningful role with a direct contribution to the energy transition and the growth of solar energy Ready to Help Shape the Future of Solar Energy? If you are passionate about tandem solar cell technology and want to drive technological breakthroughs, we invite you to join Qcells. Apply today and become part of a team that is redefining the future of photovoltaics. Please send your application including cover letter, CV, and references to: hr-techgroup@qcells.eu Qcells is an equal opportunity employer. We value diversity and are committed to creating an inclusive environment for all employees. Privacy Notice pursuant to Article 13 of the GDPR for job vacancies As part of your application, we process your personal data (e.g. contact details, CV, references) solely for the purpose of conducting the recruitment process. The data controller is Hanwha Q CELLS GmbH OT Thalheim Sonnenallee 17–21 06766 Bitterfeld-Wolfen Germany The legal basis is Article 6(1)(b) of the GDPR. Your data will be treated confidentially and deleted no later than six months after the process has been completed, provided there is no statutory obligation to retain it. You have the right to access, rectify, erase and restrict the processing of your data, as well as the right to lodge a complaint with a data protection supervisory authority. If you have any questions, please contact datenschutz@qcells.eu Keywords: STEM, solar, photovoltaics, research, development, R&D, physics, chemistry, engineer, scientist, chemist, physicist, laboratory, MSA, ISO 9001, ISO 17025, ISO 45001, TRGS 526