01 — About

About.

Engineer, entrepreneur, and hands-on builder with a bias for shipping real products in the real world.

I build things that actually work — then figure out how to make them work better.

I'm Yasodh Jayathilake (YJ) — an electrical engineer turned entrepreneur based in San Francisco, CA. My background spans hardware design, embedded software, autonomous systems, event production, and security technology. What ties it all together is a drive to own the full stack: from CAD and circuit design to firmware and real-world deployment.

Right now I'm Co-Founder & CTO at Trac Technology , where I designed an autonomous pressure washing robot entirely from scratch. That means the mechanical chassis in Fusion 360, the full electronics stack, low-level Arduino control, and autonomous navigation software on an NVIDIA Jetson Nano. We've moved from prototype to live pilots with real customers.

Before robotics, I founded and ran YJ Entertainment for six years — an event production company where I led a team, built custom PCBs and IoT-driven scenic installations, and grew profit margins by 32% through engineering-driven process improvements.

I'm a PMP-certified project manager and hold a Bachelor of Science in Electrical Engineering from Southeast Missouri State University.

Yasodh Jayathilake — Engineer, Co-Founder & CTO at Trac Technology

Experience.

Jan 2025 – Present Trac Technology ↗

Co-Founder & CTO

Trac is an autonomous robotics startup developing a self-driving pressure washing robot designed to clean commercial and industrial floors without human intervention.

  • Designed the complete mechanical architecture from the ground up using Autodesk Fusion 360 — chassis, drivetrain, structural components, and full subsystem integration.
  • Performed all hands-on fabrication and physical build of the robot, translating CAD designs into a functioning prototype.
  • Engineered the full electronics stack — power systems, motor control, sensor integration, and wiring.
  • Developed autonomous navigation and control software on an NVIDIA Jetson Nano — real-time computer vision, path planning, and autonomous decision-making.
  • Programmed low-level hardware control on Arduino microcontrollers — sensor feedback loops and actuator control for precise movement and pressure washing execution.
  • Designed and 3D printed all custom mechanical components and enclosures, enabling rapid prototyping and iterative hardware improvements.
  • Advanced the robot from prototype to real-world validation through active pilot programs and live product demonstrations with prospective customers.
C++ Python NVIDIA Jetson Nano Arduino Fusion 360 3D Printing Computer Vision Robotics
Aug 2024 – Present Safe Haven Security

Technician & Sales

  • Designing and installing home security solutions for the largest ADT Security Dealer in the US.
  • Educating customers on equipment — problem-solving to best protect homes, implement video surveillance, and smart home technology.
  • Closed over $50K in sales within the first 5 months through consultative selling and technical expertise.
Security Systems Low Voltage Smart Home B2C Sales
Apr 2017 – Dec 2023 YJ Entertainment Inc

Founder & System Designer

  • Founded and operated an event production company providing 3D event design and creative technical services for the entertainment and corporate event industry.
  • Designed engineering drawings, system integration plans, and custom PCB designs for installation projects.
  • Used microcontrollers and IoT systems for automation projects in scenic event designs.
  • Developed and documented SOPs that reduced direct labor expenses by 32% and increased gross profits.
  • Designed and built tour-ready custom integrated control, networking, and power distribution road cases.
PCB Design IoT 3D Design Fabrication Team Leadership
2021 – 2023 Logic Systems Inc

Production Lighting Director

  • Designed and operated lighting controls for the St. Louis Blues at the Enterprise Center — live event productions for large audiences.
  • Managed lighting and video production for large-scale concerts at St. Louis Music Park and St. Charles Heritage Fair.
  • Implemented innovative lighting techniques that improved visual effects by 25%.
  • Trained and supervised junior lighting technicians, improving team performance and efficacy.
Lighting Control Live Events Team Management
2021 – 2023 Coopers Corner Schools Inc

Low Voltage System Designer

  • Designed and installed network and CCTV camera systems, enhancing school security and connectivity.
  • Developed a custom modular command center for live monitoring of remote locations, improving response times.
  • Provided technical support and maintenance, reducing system downtime by 30%.
  • Collaborated with IT and security teams to integrate new technologies and improve overall system performance.
CCTV Networking Low Voltage System Design

Skills.

Programming

C++ Python

Embedded & Hardware

Arduino NVIDIA Jetson Nano Microcontrollers IoT Systems PCB Design Circuit Design PLC Programming Power Distribution Low Voltage Systems

Design & CAD

Autodesk Fusion 360 SolidWorks AutoCAD 3D Printing Fabrication

Systems & Integration

Electrical Systems Design System Integration Network Installation CCTV Systems IT & Security Computer Vision

Business & Management

PMP Certified Team Leadership Project Management B2B Sales B2C Sales SOPs & Documentation System Audits

Tools

Salesforce QuickBooks Google Suite Zoho Microsoft Office

Education.

Graduated December 2020

B.S. Electrical Engineering

Southeast Missouri State University

Licenses & Certifications

  • Project Management Professional (PMP) — Project Management Institute
  • Mortgage Loan Originator — State of California | NMLS ID: 2559526

Ready to build something together?

See My Work Get In Touch