# R&D Intern - Mechatronics Intern > Rapsodo · Singapore, Singapore · Full-time · Posted 2026-09-22 **Workplace:** on_site **Department:** RDO ## Description Rapsodo is a leading global sports technology company where passion for performance meets cutting-edge innovation. We develop advanced analytics and hardware that empower athletes to play without limits™. As our QA Engineer Intern, you will fuel the next generation of products through rigorous testing, data-driven analysis, and cross-team collaboration, ensuring we deliver game-changing results. **About the role** We're building a high-speed sports robot and the validation system around it. A machine that moves this fast, this repeatably, throws off a steady stream of mechanical problems: reaction loads into the frame, dynamic balance, structural stiffness, resonance, fatigue, joint wear, fixture repeatability. That's where you come in. **We want someone who can model a mechanism before we build it**, predict how it will behave, and then tell us honestly how far the prediction was off once we measure the real thing. You'll sit with the QA/Validation team, and simulation will be your main lever. One concrete example of the work: the forward swing dumps significant reaction torque into the structure and shifts the system's center of gravity through the stroke. We want a **counterweight / dynamic balancing scheme** that cancels as much of that as possible. Model it, propose it, verify it against measured data. There are plenty more problems like it waiting. You'll work across a mixed engineering team — mechanical, hardware, firmware, and software — so you'll be as involved in what the test system logs as in what the fixture is made of. Hands-on, on-site lab work, not a desk-only internship. **What you'll do** **Simulation and analysis (the core of the role)** - Build multibody dynamics models of the robot's mechanisms; extract joint reaction loads, torques, and CG behavior across the motion profile - Analyze dynamic balancing and counterweight concepts: mass, placement, linkage or counter-rotating approaches and quantify what each one actually cancels - Run structural and modal FEA to find stiffness limits, resonances, and fatigue-critical features before they show up as a broken part - Correlate every model against measured data. A simulation nobody validated is a guess with better graphics. **Validation and lab work** - Help build the robot validation tool, test fixtures, instrumentation, and the measurement setup behind it - Instrument the robot and its rigs (load cells, accelerometers, encoders, high-speed camera targets) and turn raw signals into numbers the team trusts - Run validation campaigns: performance verification, repeatability, durability and life cycling, tolerance checks, failure investigation - Work with firmware and software engineers on test automation, data logging, and reporting - Write test plans, validation protocols, and test reports; log and track defects - Support design reviews with tolerance stack-ups, GD&T checks, and design-for-test input ## Requirements - Currently pursuing or recently completed a BS/MS in **Mechatronics**, Mechanical, or Robotics Engineering (or equivalent) - Available full-time in Singapore for at least 6 months - Strong grounding in dynamics, mechanism kinematics, and vibration fundamentals, you should be comfortable reasoning about inertia, reaction loads, and natural frequencies - Hands-on experience with at least one simulation tool and a willingness to go deep on it - CAD proficiency (\[SolidWorks / Fusion 360 / NX\]) - Comfortable with lab instrumentation and data acquisition, can wire up a sensor and sanity-check the number that comes out - Able to work alongside hardware, firmware, and software engineers and speak enough of their language to be useful - Writes clearly. Analysis nobody can read is analysis nobody will act on. - Careful and safety-conscious around high-energy moving machinery **Strong plus** - **Multibody dynamics simulation**, such as MSC Adams, Simscape Multibody, RecurDyn, Ansys Motion, or equivalent — able to model a driven linkage and pull out joint reaction loads over a full motion cycle - Experience with **dynamic balancing / counterweight design**, inertia and CG management, or vibration and modal analysis - FEA beyond coursework: structural, modal, fatigue, or explicit dynamics - Python or MATLAB for data processing, model post-processing, and test automation - High-speed video motion capture or strain gauge work - Exposure to servo/actuator systems, motor sizing, or control-system basics - Interest in sports technology **What you'll get** - Real, unsolved mechanical problems with measurable answers — your model either predicts what the machine does or it doesn't, and the data will say so - Ownership of analysis and tooling the team will keep using after you leave - Mentorship from \[senior validation / mechanical engineers\] - The full loop: model, design, build, test, iterate  on production sports-tech hardware, next to every engineering discipline that touches it ## Apply [Apply at Rapsodo](https://apply.workable.com/rapsodo/j/9FCEA64742/apply) --- Powered by [Workable](https://www.workable.com)