Working Student – Laser Lab & Cleanroom Operations (f/m/d)

About Focused EnergyFocused Energy is building the future of clean energy through laser-driven inertial fusion. Backed by our $240M Series A — the largest fully secured Series A in the global fusion industry — we are scaling rapidly across multiple geographies. Based in Germany and the US, we have brought together the top scientific and engineering minds using proven technologies to unlock fusion power at commercial scale. Focused Energy is working to realize game-changing scientific innovation that promises to deliver a clean, sustainable and abundant source of power globally. Your RoleFocused Energy seeks a Working Student - Laser Lab & Cleanroom Operations (f/m/d) for our Laser Lab in Darmstadt to support laser experiment design and setup. You will assist with cleanroom operations, including preparing and inspecting optical components, setting up support systems, electronics, and measurement equipment, and helping commission cooling and driver units. After setup, you will operate experiments and collect data. This immersive, hands-on role involves daily collaboration with lab and controls engineers in a cleanroom, requiring precision, adherence to What You'll DoAssist the Laser Lab team in designing and building laser experiments in the Darmstadt Optical Lab. Support cleanroom operations by setting up support systems and preparing components. Clean and inspect optical and mechanical components according to cleanroom standards. Set up electronics and measurement equipment for experiments. Collaborate with engineers to commission cooling and driver units. Operate experiments and collect data under engineering supervision. Adhere to cleanroom and lab safety protocols, and promptly report any deviations. Who You AreCurrently pursuing a Bachelor's or Master's degree in Physics, Optics/Photonics, Laser Engineering, Mechatronics, Electrical Engineering, or a related field. You possess a basic understanding of optics, lasers, or experimental physics through coursework or laboratory experience. Comfortable with hands-on hardware work, demonstrating careful, precise, and methodical handling of sensitive components. Able to reliably follow structured procedures and safety protocols (such as cleanroom or laboratory guidelines). Basic familiarity with electronics and measurement equipment, such as oscilloscopes, power meters, or similar devices. You demonstrate reliability, a structured and proactive approach, and a willingness to learn in a hands-on laboratory environment. Strong English skills. What We OfferInnovative Technology & Mission: Be part of a cutting-edge company working on groundbreaking research in clean energy and scientific discovery. Career Development: We invest in our people. This is an opportunity to join an early, growing company at the forefront of new technology, where you’ll have the opportunity to develop and grow your career. Collaborative Culture: Work with great people in a dynamic, international environment with top-tier scientists, engineers and professionals passionate about solving global challenges. Ownership: Take ownership from day 1 and drive impact by making decisions, solving challenges and shaping the future of our company. Your Success is our Success: We offer a competitive salary and company ownership in the form of stock options, giving you a direct stake in our success and ownership in what we build together. Vacation Days: We support your work-life-balance by granting you 30 days of vacation per year. Snacks and Drinks: Our office fridges are never empty. Enjoy our healthy snacks and drinks. Our Darmstadt office even offers a canteen with delicious lunch options daily. Retirement Plan: If you decide for a private pension plan, we will finance 20% on top of your monthly contributions, plus loyalty incentives. Equipment: We offer state-of-the-art Windows or Apple Laptops. In addition, you will receive a keyboard, mouse and headset so you are fully equipped from day