Senior Mechanical Design Engineer

About this position Join us in our mission to commercialize fusion energy. About Type One Energy Type One Energy Group is mission-driven to provide sustainable, affordable fusion power to the world. Established in 2019 and venture-backed in 2023, the company is led by a team of globally recognized fusion scientists with a strong track record of building state‑of‑the‑art stellarator fusion machines, together with veteran business leaders experienced in scaling companies and commercializing energy technologies. Type One Energy seeks a Senior Mechanical Design Engineer with first‑of‑a‑kind design and integration skills. Location: Knoxville TN or Boston (Woburn, MA) Salary: Highly Competitive Plus Benefits Contract: Permanent, full time Reporting to: Engineering Resource Manager Your role in the mission: The primary function of this position is to provide conceptual, preliminary and final design of systems and components for our stellarator fusion power plants. The Senior Mechanical Design Engineer will act as a mentor to junior engineers on a variety of projects and systems including vacuum vessels, divertors and plasma facing components. Other responsibilities include: Translating design requirements into functional stellarator components and systems. Develop system and component designs and associated technical specifications for our stellarator systems. Analyze and align the interface requirements between and among stellarator systems. Develop and validate Finite Element (FEA) and Computational Fluid Dynamics (CFD) models using ANSYS, COMSOL, and other tools. Resolve any technical questions which may occur during the fabrication efforts. What you’ll need: Bachelor’s degree in a relevant engineering discipline; Master’s degree is preferred. 10+ years of relevant experience in similar engineering environments. Demonstrated leadership, project management, communication, and problem‑solving skills, with a proven ability to manage complex technical challenges. Expertise in mechanical design principles, failure modes, and lifecycle reliability. Proficiency in cost, schedule, and resource planning. Skilled in balancing trade‑offs across performance, manufacturability, and regulation. Experience with design of first‑of‑a‑kind components. Familiarity with Computer Aided Design and Analysis software. Experience with design of fusion energy systems and equipment is desirable. Experience with Siemens NX CAD software is highly desirable. Experience operating within a PDM environment in CAD. We offer : A hybrid work policy Stock options Insurance plans Retirement options And many more great voluntary benefits Type One Energy applies proven advanced manufacturing methods, modern computational physics and high‑field superconducting magnets to develop its optimized stellarator fusion energy system. Our FusionDirect development program pursues the lowest‑risk, shortest‑schedule path to a fusion power plant over the coming decade, using a partner‑intensive and capital‑efficient strategy. Type One Energy is committed to community engagement in the development and deployment of its clean energy technology. For more information, visit or follow us on LinkedIn. Equal Opportunity Statement Type One Energy is an equal opportunity employer. We value diversity, searching for the best new ideas and remaining open to unique perspectives. Therefore, all qualified applicants will receive consideration for employment independent of race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other characteristics protected by applicable federal, state, or local laws. All qualified individuals are encouraged to apply. #J-18808-Ljbffr