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Mechanical Engineering  ·  University of California, Berkeley

Zain Dahdul

Mechanical design, shipped software, and split-second response — I build things that have to work the first time.

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Education · Expected May 2029
Zain Dahdul
B.S. Mechanical Engineering · UC Berkeley
  • College of Engineering · 3.3 GPA
  • Coursework: Solid Mechanics, 3D CAD & Prototyping, Programming & Data Analysis for Engineers, Linear Algebra & Differential Equations
  • Cal Men's Club Water Polo · Phi Kappa Psi
  • Millikan High School Valedictorian — Gold Robe
Experience · 2025 – Present
Co-Founder — Tipsy
Biometric drinking-safety iOS app · Live in the App Store
  • One of two technical founders — concept to App Store in under a year
  • Personalized limit system and digital buddy feature to reduce high-risk drinking
  • Design, development, and launch with no outside funding or engineering hires
Project · 2026
Small-Scale Wind Turbine
UC Berkeley · 4-person team
  • 1.242 W peak output at 140.7 g under fixed volume and swept-radius constraints
  • SolidWorks FEA deflection predictions validated against physical load testing
  • Traced a 2× sim-vs-measured discrepancy to print infill density and corrected the model
SolidWorks · FEA 3D Printing Load Testing

Mechanical Engineer · UC Berkeley · 2029

Full Profile
Below

Explore My Work
UC Berkeley Mechanical Engineering Tipsy — Co-Founder Shipped on the App Store SolidWorks · FEA Wind Turbine Design 3D Printing Ocean Lifeguard EMR Certified Valedictorian Robotics Founder Bilingual ES · EN UC Berkeley Mechanical Engineering Tipsy — Co-Founder Shipped on the App Store SolidWorks · FEA Wind Turbine Design 3D Printing Ocean Lifeguard EMR Certified Valedictorian Robotics Founder Bilingual ES · EN
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iOS App Shipped
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Funding Raised
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Safety Certifications
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Weighted GPA · Valedictorian
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Expected Graduation

Built Different

"The ocean teaches you one thing: hesitation costs lives. Engineering teaches you another: precision saves them."

I bring both to every problem I touch — whether it's shipping an app to the App Store, catching my own FEA model being wrong, or responding to a swimmer in distress a half-mile offshore.

Gold Robe Valedictorian

Engineering meets action.

I'm a Mechanical Engineering student at UC Berkeley who ships. I co-founded Tipsy, a biometric drinking-safety iOS app now live in the App Store — taken from concept to release in under a year by two technical founders, with no outside funding and no engineering hires.

On the hardware side I work the full loop: design, simulate, build, test, iterate. I've run SolidWorks FEA on a 3D-printed wind turbine, validated it against physical load testing, and tracked down my own model error when the two disagreed by 2×.

I've also operated under life-or-death pressure as an Ocean Lifeguard for the Long Beach Fire Department Marine Safety Division, and tuned Bioness L300 Go stimulation systems on post-stroke patients in live gait training at Precision Rehabilitation.

Design → Test → Iterate Calm Under Pressure Ships Product Team Leadership Bilingual

Experience

2025 — Present
Co-Founder
Tipsy — Berkeley, CA
  • Co-founded and shipped a biometric drinking-safety iOS app, now live in the App Store, as one of two technical founders.
  • Designed a personalized limit system and digital buddy feature to reduce high-risk drinking among college students.
  • Took the product from concept to App Store release in under a year — design, development, and launch without outside funding or engineering hires.
May 2026 — Aug 2026
Clinical Technology Intern
Precision Rehabilitation — Long Beach, CA
  • Fitted and calibrated Bioness L300 Go functional electrical stimulation systems for patients with post-stroke gait impairment.
  • Tuned stimulation intensity and timing through a tablet interface during live gait training sessions.
  • Logged device parameters across sessions to support clinician assessment of patient response and treatment adjustment.
May 2024 — Aug 2026
Ocean Lifeguard Seasonal
Long Beach Fire Department — Marine Safety Division, CA
  • Prevented and responded to water emergencies through active surveillance and enforcement across public beaches.
  • Served as first responder for on-site medical crises, executing Emergency Medical Response protocols.
  • Certified Emergency Medical Responder (EMR), USLA Open Water Lifeguard, BLS, and CPR/AED for Professional Responders.
Jun 2023 — Aug 2023
Environmental Engineering Intern
Biogas Engineering — Victorville, CA
  • Supported biogas system design and optimization at the Victor Valley Wastewater Reclamation Authority, converting methane and CO2 from waste streams into usable energy.
  • Compiled daily production data into technical reports used by plant management.
  • Worked alongside senior engineers on operational efficiency improvements to the digestion and gas capture process.

Projects

2026 · UC Berkeley · 4-Person Team
Small-Scale Wind Turbine
SolidWorks · FEA · 3D Printing · Data Analysis
1.242W
Peak Output
12.4N/mm
Tower Stiffness
140.7g
Assembly Mass
  • Designed and 3D-printed a full turbine assembly under fixed volume and swept-radius constraints.
  • Ran SolidWorks FEA to predict tower deflection, then validated those predictions against physical load testing.
  • Diagnosed a 2× discrepancy between simulated and measured deflection, traced the error to print infill density, and corrected the model.
Design for Manufacturing Finite Element Analysis Physical Load Testing Rapid Prototyping

Skills & Tools

SolidWorks · 3D CAD & FEA
Part and assembly modeling, technical drawings, and finite element analysis validated against physical load testing.
3D Printing & Prototyping
Rapid iteration from CAD to printed part, with design-for-manufacturing decisions made at the model stage.
Python & Data Analysis
Python and OpenCV for engineering data — processing test results, and turning measurements into conclusions.
iOS & Backend Development
Built and deployed a production iOS app end to end, including server-side features and App Store release.
Emergency Medical Response
Certified EMR, BLS, CPR/AED for Professional Responders, First Aid, and USLA Open Water Lifeguard.
Bilingual (ES / EN)
Full professional fluency in Spanish and English — effective across cultures and clinical settings.

Education

In Progress · Expected May 2029
B.S. Mechanical Engineering
University of California, Berkeley — College of Engineering
  • 3.3 / 4.0 GPA
  • Coursework: Solid Mechanics · 3D CAD & Prototyping · Programming & Data Analysis for Engineers · Linear Algebra & Differential Equations · Multivariable Calculus · Physics for Engineers I & II
  • Cal Men's Club Water Polo
  • Phi Kappa Psi Fraternity
Aug 2021 — Jun 2025
High School Diploma
Millikan High School — Long Beach, CA
  • Valedictorian — Gold Robe Recipient
  • 4.8 Weighted GPA / 4.0 Unweighted · QUEST Program
  • Captain: Water Polo & Swim · 2× All-Moore League · 2024 Offensive Player of the Year
  • Founder & President, Robotics Club — raised $2,000+ in funding

Beyond the Classroom

Space Enterprise at Berkeley
Avionics Sub-team · 2026 — Present
Build sensor data-collection pipelines and validate telemetry integrity from flight to ground. Design and test PCBs for the rocket avionics stack, enabling telemetry links back to the ground station.
Millikan Robotics Club
Founder & President · 2023 — 2025
Founded the school's first robotics club and grew it to 8–10 active members, independently securing $2,000+ in funding for VEX V5 hardware. Led design and build cycles from concept to working machine, and taught new members CAD and assembly fundamentals.
Life Rolls On
Deep Water Instructor, Volunteer · 2022
Assisted adaptive athletes with transfers from wheelchairs into the water and provided in-water stabilization during surf sessions in Santa Monica.
Cal Men's Club Water Polo
Member · 2025 — Present
Compete on UC Berkeley's club water polo team alongside a full engineering course load, after captaining varsity water polo and swim through high school.
Off the Clock
Surfing Backpacking Cooking Pickleball Concerts Snowboarding Electronics Traveling

Get In Touch

Whether you're looking for an engineer who ships, someone who stays calm when the stakes are real, or a bilingual collaborator who'll own a problem end to end — I'd love to hear from you.