Intern Energy Efficiency & Building Systems

energiebüro ag has been successfully active for around 30 years in the field of renewable energy solutions as well as energy efficiency & building systems. We stand for innovative, qualitatively convincing solutions as well as expert and method-competent consulting services – always in the context of 100% renewable and sustainability. Our pioneering role in novel building and energy concepts, innovative solar power plant solutions, and the renovation of hydropower in Switzerland distinguishes us. As a committed, interdisciplinary team of 20 people, we work in a family-like setting in central locations in Zurich and Bern – full of energy, step by step contributing to the energy transition.

From February 2026 or by arrangement, we are looking for you:

You are committed to energy efficiency in the building stock, especially in the networking of technology. You engage in the successful execution of projects and support our clients as well as our project managers in solving a wide variety of challenges. In addition to your planning support, you also work in an advisory capacity and contribute to improving the ecological footprint of our clients regarding construction, consumption, and generation. You are partially involved in conceptual work and have the opportunity to provide individual services for demanding customers.

You support our project managers in the following areas:

• Feasibility and preliminary studies energy & building / condition analyses and renovation concepts
• Project planning, functional tenders, and support up to and including commissioning
• Operational optimizations and analyses, including follow-up support
• Technical consulting, client representation, quality assurance in demanding projects

Technology in harmony with decarbonization excites you. The energy transition and the associated challenges are close to your heart. You are fascinated by building technology issues and also enjoy being on the move. You think and act entrepreneurially and performance-oriented, lead your projects conscientiously and self-motivated to success, and take responsibility.

You preferably have a university degree (ETH, FH) in a technical field of study (mechanical engineering, electrical engineering, or building technology/energy) or are a HF technician in building technology and have attended corresponding further training in the field of building, energy & sustainability. You are independent, reliable, and think ahead. You can organize yourself, independently prioritize tasks, and are strong in implementation. You can count on the support of an experienced team of professionals in a dynamic environment.

The internship duration is set to 6 months. The internship is preferably suitable for recent graduates, with the prospect of subsequent permanent employment. Good IT user skills such as good Excel knowledge are required. User experience in simulation tools, tools for heat demand calculations, drawing programs, etc., as well as programming experience, are advantageous. Your organizational skills, your proactive thinking, your performance orientation, and your goal-oriented working style are part of your recipe for success. Pleasant manners, successful communication internally and externally, and confident German (French/English/Italian advantageous) are required.

Interested in actively participating with us? And developing yourself further? Then please email us the completed electronic application form (www.energiebuero.ch > About us, Career) together with your meaningful electronic application with the subject "EECO Internship_2602" to personal@energieburo.ch. Thank you in advance, and we look forward to hearing from you.