FEA Engineer Intern (PICO) - 2026 Summer (PhD)

Bytedance • San Jose, CA

3d • $55 - $55

About The Position

We are seeking a highly motivated FEA Engineer Intern with a strong foundation in solid mechanics and fracture mechanics to support the design, modeling, and reliability evaluation of next-generation MR optical modules. In this role, you will contribute to developing opto-mechanical finite element models to guide design decisions and optimize manufacturing processes. You will help build a robust simulation framework for structural integrity, with particular emphasis on fracture mechanics, adhesion and thin film deformation. Additionally, you will bridge the gap between simulation and physical testing by designing and executing targeted opto-mechanical experiments. We are looking for talented individuals to join us for an internship in 2026. PhD Internships at ByteDance aim to provide students with the opportunity to actively contribute to our products and research, and to the organization's future plans and emerging technologies. PhD internships at Bytedance provide students with the opportunity to actively contribute to our products and research, and to the organization's future plans and emerging technologies. Our dynamic internship experience blends hands-on learning, enriching community-building and development events, and collaboration with industry experts. Internships at ByteDance aim to provide students with hands-on experience in developing fundamental skills and exploring potential career paths. A vibrant blend of social events and enriching development workshops will be available for you to explore. Here, you will utilize your knowledge in real-world scenarios while laying a strong foundation for personal and professional growth. Applications will be reviewed on a rolling basis - we encourage you to apply early. Please state your availability clearly in your resume (Start date, End date).

Requirements

• Currently pursuing a PhD in Mechanical Engineering, Solid Mechanics, or a related field.
• Experience in implicit and explicit finite element analysis (FEA).
• Experience with the mechanical behavior of materials and constitutive modeling.
• Strong verbal and written communication skills.

Nice To Haves

• Experience with calibration, verification, and validation of models through physical testing.
• Strong background in fracture mechanics, adhesion, soft materials, and large deformation of thin films.
• Expertise in running non-linear static and dynamic Finite Element Analysis (FEA) using ABAQUS.
• Knowledge of optics is a plus.
• Knowledge of liquid lens is a plus.

Responsibilities

• Develop opto-mechanical finite element models/analytical models of MR optical modules for design guidance, process optimization and reliability evaluation.
• Conduct fracture mechanics analysis on brittle/ductile fracture evaluation.
• Drive material characterization and testing to support modeling efforts.
• Communicate and report analysis results to team as well as cross-functional teams.
• Coordinate and work with other teams to integrate module models into larger assembly models.

Benefits

• Interns have day one access to health insurance, life insurance, wellbeing benefits and more.
• Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year).
• Interns who are not working 100% remote may also be eligible for housing allowance.

What This Job Offers

• Career Level: Intern
• Education Level: Ph.D. or professional degree
• Number of Employees: 5,001-10,000 employees