Mechanical Engineer – Thermal Simulation & Analysis

Apptronik is a human-centered robotics company developing AI-powered robots to support humanity in every facet of life. Our flagship humanoid robot, Apollo, is built to collaborate thoughtfully with people, starting with critical industries such as manufacturing and logistics, with future applications in healthcare, the home, and beyond. We operate at the cutting edge of embodied AI, applying our expertise across the full robotics stack to solve some of society's most important problems. You will join a team dedicated to bringing Apollo to market at scale, tackling the complex challenges like safety, commercialization, and mass production to change the world for the better. JOB SUMMARY Apptronik is seeking a Mechanical Engineer – Thermal Simulation & Analysis to supports the development and validation of thermal solutions for Apptronik’s humanoid robot, Apollo. This role focuses on executing simulations, assisting in testing, and contributing to the design of thermal systems for tightly integrated robotic hardware. The engineer will work under guidance while building expertise in thermal modeling and analysis. ESSENTIAL DUTIES AND RESPONSIBILITIES or KEY ACCOUNTABILITIES Assist in developing CFD and thermal models for actuators, electronics, and battery systems Run simulations using established tools and workflows Analyze simulation and test data to identify trends and performance gaps Support thermal testing, including setup, instrumentation, and data collection Collaborate with design engineers to incorporate thermal considerations into designs Document modeling approaches, assumptions, and results Support model validation through correlation with experimental data SKILLS AND REQUIREMENTS Familiarity with CFD tools (e.g., Simcenter CFD, Ansys Icepak, Fluent, or similar) Understanding of basic heat transfer principles (conduction, convection, radiation) Strong analytical and problem-solving skills Ability to clearly document and communicate technical findings Willingness to learn and grow in a fast-paced engineering environment EDUCATION and/or EXPERIENCE Bachelor’s or Master’s degree (or equivalent) in Mechanical Engineering or related field At least 2–5 years of experience in thermal analysis, simulation, or mechanical design PHYSICAL REQUIREMENTS Prolonged periods of sitting at a desk and working on a computer Must be able to lift 15 pounds at times Vision to read printed materials and a computer screen Hearing and speech to communicate *This is a direct hire. Please, no outside Agency solicitations. Apptronik provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

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