Which tasks do you take over? As a Project Engineer (m/f/d), you are responsible for the technical execution of our international customer projects – from concept to commissioning. You will work at the interface between the customer, engineering, suppliers, and installation partners to ensure that our thermal energy storage systems are seamlessly integrated into existing industrial environments. Technical coordination of international customer projects in the field of thermal energy storage. Planning and design of system integration into industrial environments (e.g., steel, chemical, cement, or energy industries). Creation and maintenance of technical documentation, drawings, and specifications. Coordination with customers, partner companies, and internal departments (e.g., engineering, procurement, installation). Monitoring project execution with regard to quality, deadlines, and costs. Support during manufacturing, delivery, installation, and on-site commissioning. Participation in technical risk assessments and development of solutions. Contribution to the continuous improvement of our project execution and integration processes. What do you bring? Degree in mechanical engineering, plant engineering, process engineering, energy technology, or a related field. Initial or several years of experience in technical project roles, ideally in an international industrial context. Knowledge of integrating technical systems into existing industrial plants – e.g., heat exchangers, storage systems, piping, control systems. Strong technical understanding, structured working style, and a high level of personal responsibility. Excellent communication skills and confidence in working with customers and partners. Fluent in German and English, both written and spoken; additional languages are a plus. Willingness to travel internationally (up to 30%). What we offer? Permanent employment in a fast-growing cleantech company. Flexible work models with home office options and trust-based working hours. Personal development through targeted training and development programs. Flat hierarchies and space for initiative, ideas, and active participation. Diverse international projects with real impact on the energy transition. Strong team culture with open communication and regular team events. Innovative work environment with modern tools and a global perspective. About us At Kraftblock, our goal is to enable the transition to renewable energy. Kraftblock has a key technology to decarbonize the industry and is backed by world-class investors with a track record of supporting disruptive technology startups. Now we are looking for highly talented and visionary people who share our passion and drive to develop Kraftblock into the world's leading energy storage system. Join the "Top Innovator" and shape the future of the climate-friendly energy market!