Control Systems Engineer, Advanced Controls and Integration

About Thea Energy: Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The company is reinventing the stellarator using computer-controlled arrays of planar coils thereby replacing the intricate, complex modular magnets required in all other stellarator architectures. Thea Energy is on a mission to create a limitless source of zero emission energy for a sustainable future.

Position Overview: Thea Energy is seeking a Senior Electrical Distribution Systems to lead the design, specification, and integration of the power supplies, power distribution network, grid interface, STATCOM, and energy storage systems for the company’s Eos integrated stellarator. This role combines high-voltage substation and distribution infrastructure design with simulation-driven development of plant-wide energy management strategies.

This role will be responsible for defining and validating the full electrical infrastructure, ranging from the high/medium-voltage power supply systems, power generation units, HV/MV utility interconnection, and substation architecture to backup generators and BESS platforms. You will interface with external EPC and utility partners, while driving internal technical requirements, simulations, and review processes across the design, procurement, and commissioning lifecycle.

As part of a rapidly growing team, you’ll be part of the organizational build-up of a leading fusion energy company. This role will have a high degree of autonomy and must be able to move quickly. The Thea Energy team is comprised of self-motivated, creative, and fun individuals with an excitement for solving complex problems.

Key Responsibility Areas: • Develop control strategies, operating modes, control narratives, and sequence logic for assigned Eos subsystems. • Support distributed control system design through preparation of control logic diagrams, I/O architecture, design-basis documentation, and subsystem interface definitions. • Build and maintain dynamic models of plant and subsystem behavior using MATLAB, Simulink, Python, or similar tools to inform control design, operating setpoints, and transient analysis. • Support design and tuning of classical and advanced control algorithms for thermal, fluid, electrical, and process systems. •

Coordinatewithinternal subsystem owners and external vendors to translate design requirements into implementable PLC, DCS, HMI, and supervisory control solutions. • Prepare technical documentation including block diagrams, interface descriptions, validation plans, control philosophies, and test support packages. • Contribute to integration of control functions across power supply systems, cryogenic systems, vacuum systems, utilities, plant support systems, and future plasma-related control interfaces. • Support verification, commissioning preparation, issue resolution, and design reviews during conceptual and preliminary design phases.

Ideal Experience & Skillsets: Required Qualifications: • Bachelor’s, Master’s, or Ph.D. degree in Electrical Engineering, Mechanical Engineering, Control Systems, Nuclear Engineering, Physics, or a related discipline. • Two or more years of experience in control system development for complex industrial, energy, process, nuclear, aerospace, or scientific systems. • Strong background in dynamic system modeling and control design, including classical and modern control methods. • Strong proficiency with MATLAB and Simulink. • Experience with Python or other technical programming environments. • Familiarity with PLCs, DCSs, HMIs, SCADA, or

otherindustrial control environments. • Ability to prepare and communicate technical documentation clearly across cross-functional engineering teams. • Strong written and verbal communication skills and the ability to operate effectively in a multidisciplinary organization.

Preferred Qualifications: • Experience with first-of-a-kind energy systems, advanced reactors, fusion systems, or other high-reliability engineered systems. • Experience with vendor coordination and implementation oversight for control logic or subsystem controls. • Experience with MIMO control, optimization-based control, robust control, estimation, or data-driven control methods. • Familiarity with Linux, Git, and configuration-managed engineering workflows. • Experience with thermal-hydraulic, power system, or process system dynamic modeling. • Exposure to safety-related control functions, interlocks, or regulated plant environments.

Company Benefits: Salary range $120,000-$160,000 Comprehensive health benefits (e.g. medical/dental/vision) Employee equity stock options 20 days PTO Requirements: Ability to occasionally lift up to 50 lbs. Ability to perform activities such as typing, standing, or sitting for extended periods of time. Willingness to occasionally travel or work required nights/weekends/on-call.

Ability to work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, high voltage, high current, pressure systems, and cryogenics. It’s not necessary to meet all of the skillsets outlined above. Please feel free to send us a note and tell us why you would still be a great fit for this role or Thea Energy. Diversity and Inclusion: Thea Energy is an equal opportunity employer committed to creating a company of diverse backgrounds.

By creating a diverse environment, we will bring new ideas and approaches to solving some of the world’s hardest (and most important) problems. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, sexual orientation, gender identity or expression, national origin, family or marital status, age, disability, veteran’s status, or other characteristic protected by applicable laws and regulations.