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Focused Energy · 3 weeks ago

Computational Fluid Dynamics Engineer

San Francisco Bay Area

Full-time

Hybrid

Senior Level

5+ years exp

Focused Energy is a fusion energy startup aiming to generate unlimited clean energy. They are seeking a highly skilled Computational Fluid Dynamics (CFD) Engineer to develop and integrate advanced CFD models for the fusion chamber environment, directly influencing the design of core reactor systems.

Clean EnergyEnergyRenewable Energy

Responsibilities

Develop and rigorously validate a high-fidelity CFD model of the fusion chamber

Design and execute a systematic series of CFD simulations to explore and optimize design parameters

Work seamlessly with mechanical, thermal, and target injection teams to integrate CFD results into the broader reactor design framework

Develop robust meshing tools, High-Performance Computing (HPC) workflows, and visualization tools to ensure that CFD simulations are scalable, efficient, and reproducible within our large-scale research and development environment

Define necessary model improvements and validation activities to continuously de-risk the reactor gas dynamics and thermal management designs

Actively manage and maintain external research collaborations with universities, national laboratories, and other research groups to leverage specialized expertise and resources for CFD model validation and advanced flow physics studies

Qualification

CFD modelingHigh-Performance ComputingProgramming/ScriptingGas dynamicsMulti-physics couplingCollaboration managementTechnical communication

Required

Advanced degree (M.S. or Ph.D.) in Mechanical Engineering, Nuclear Engineering, Aerospace Engineering, Physics, or a closely related field with a strong focus on CFD

Proven expertise (5+ years post-degree or equivalent experience) in developing, validating, and applying CFD models for complex, transient, or reacting flow problems

Strong proficiency with commercial or open-source CFD software packages (e.g., Fluent, OpenFOAM, etc.)

Experience with HPC environments and developing scalable simulation workflows

Proficiency in programming/scripting (e.g., Python, MATLAB, C++) for automation, meshing, and post-processing

Ability to articulate complex technical concepts clearly to multidisciplinary teams

Preferred

Direct experience with hybrid flow regimes (e.g., combining Navier-Stokes and DSMC) or high-temperature gas dynamics

Experience in fusion energy, shock physics, or multi-physics coupling

Familiarity with systems engineering and verification/validation processes for computational models

Benefits

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.

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.

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.