Job Description

Focused Energy is a fusion energy startup with the goal of generating unlimited clean energy to responsibly meet future global demand. With the use and commercialization of laser-induced inertial fusion, a clean and highly efficient power generation technology is coming within reach, suitable to ensure a secure and scalable future energy supply.


We are seeking a skilled and highly reliable Cleanroom Lab Technician to support the operation, upkeep, and continuous improvement of our cleanroom and experimental laboratory environments. You will play a critical role in maintaining contamination-controlled spaces, supporting scientists and engineers with small and mid-sized technical projects, assisting with installation and implementation work, and ensuring equipment and consumables are always available and ready. Your work will directly support high-precision laser, optical, and experimental development efforts essential to our fusion energy mission.

What you’ll do:

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Cleanroom Operations & Upkeep:

Execute routine and advanced cleanroom cleaning protocols, including surface wipe-downs, floor maintenance, consumable replacement, and environmental monitoring to ensure compliance with cleanliness classifications and internal standards.

Technical Project Support:

Assist scientists and engineers with preparation, execution, and wrap-up of small and mid-sized projects—including component preparation, basic mechanical or optical setup tasks, labeling, documentation, and safe material handling.

Procurement & Inventory Ownership:

Manage ordering, tracking, and restocking of tools, consumables, lab supplies, and specialized cleanroom equipment. Develop and maintain an organized system that ensures availability while minimizing delays or shortages.

Tool & Equipment Coordination:

Support the installation, calibration, and basic maintenance of cleanroom equipment and laboratory tools. Coordinate with external vendors as needed for service, repairs, inspections, and deliveries.

Minor Construction & Installation:

Perform hands-on work beyond standard cleanroom technician tasks—including assisting with infrastructure buildouts, racking installation, cable routing, light mechanical fabrication, fixture mounting, and implementation of new workflows or stations.

Process & Safety Compliance:

Ensure strict adherence to safety procedures, contamination control protocols, PPE requirements, and material flow rules. Help identify issues proactively and support corrective actions.

Documentation & Continuous Improvement:

Maintain accurate logs, checklists, and inventory records. Contribute to improving procedures, increasing operational efficiency, and enhancing the usability and reliability of the cleanroom environment.

Who you are:

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Cleanroom Experience:

You understand cleanliness protocols, gowning procedures, and the importance of precision and consistency in technical environments. Experience working in cleanroom environments or other contamination-controlled labs is beneficial.

Hands-On Technical Skills:

Comfortable with tools, fixtures, mechanical assembly, and light installation tasks. You can follow engineering instructions and support lab build-outs, equipment moves, or setup changes.

Organized & Detail-Driven:

Strong ability to maintain order across inventory, supplies, logs, and checklists. You take pride in creating smooth, predictable, and well-structured operational systems.

Problem Solver & Self-Starter:

You notice issues early, suggest improvements, and take initiative to resolve small problems before they become big ones. You thrive in environments where ownership and proactivity matter.

Procurement & Vendor Coordination:

Experience managing orders, tracking shipments, comparing suppliers, and coordinating with vendors for equipment or service needs.

Safety & Compliance Mindset:

Knowledge of lab safety protocols, including handling chemicals, equipment, and materials within cleanrooms or technical laboratory environments. Preferred:

Light Fabrication or Lab Build Experience:

Background in supporting construction of lab setups, racking, optical tables, cable routing, or similar technical infrastructure is a plus.

What we offer:

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Innovative 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. Flexibility: We believe work should adapt to your life—not the other way around. That’s why we offer a hybrid setup, giving you the freedom to work from our office while also enjoying the flexibility to work from home when it suits you. Snacks and Drinks: Our office fridges are never empty. Enjoy our healthy snacks and drinks. Our Darmstadt office even offers a subsidized canteen with delicious lunch options daily. Retirement Plan: If you decide for a private pension plan, we will finance 15% on top of your monthly contributions. Equipment: Choose between a state-of-the-art Windows or Apple Laptop. In addition, you will receive a keyboard, mouse and headset so you are fully equipped from day 1. Events: We organize regular events to foster team bonding, encourage collaboration, and build a strong, supportive company culture. Connect with colleagues across departments, share ideas, and have fun together, both in and outside of the workplace. Mobility with NAVIT: We partner with NAVIT to support your flexible commuting needs—whether it’s a public transportation ticket, taxi rides or car-sharing you choose what fits your lifestyle. Fitness with Wellhub: We care about your health. Get access to a wide range of gyms, fitness studios and wellness services across Europe through our partnership with Wellhub.


Focused Energy is an equal opportunity employer committed to creating an inclusive environment. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.


Pursuant to the San Francisco Fair Chance Ordinance, Focused Energy will consider for employment qualified applicants with arrest and conviction records.


Compensation offered will be determined by factors such as location, level, job-related knowledge, skills, and experience. Certain roles may be eligible for incentive compensation, equity, benefits.