Product Leader · Engineer · Entrepreneur

Subhrojyoti
Dey

Engineering-rooted product manager with 9+ years building FDA-regulated medical devices, global consumer electronics, and AI-powered platforms from concept through commercialization.

OralVac, FDA-regulated oral care medical device by Toothsure
9+
Years Experience
5
USPTO Patents
$1M
Capital Raised
40%
Cost Reductions

About

Engineer first.
Builder always.

Subhrojyoti (Rico) Dey, Co-Founder & COO, Toothsure
Co-Founder & COO · Toothsure®

I am a product manager and entrepreneur who spent five years inside Hasbro's global product operations, delivering NERF, Fortnite, and pre-school lines across North America, Europe, and Asia, before co-founding a regulated medical device company, navigating the FDA, and building two supply chains simultaneously on two continents.

My engineering foundation spans embedded systems firmware, PCB design, electromechanical product development, VR simulation architecture, and production AI/LLM deployment. I have taken products from whiteboard through FDA clearance, from concept through global manufacturing scale-up.

I hold an MS in Computer Engineering from the University of Michigan-Dearborn (GPA 3.64) and a BS in Electrical Engineering from KIIT University. Based in Dearborn, Michigan.

Co-Founder & COO, Toothsure®, Inc. (2024–Present)FDA Class I & II devices · ISO 13485 QMS · Dual USA–China supply chain · $1M raised
Engineering Manager, Brainchild Engineering (2023–2024)Multi-client NPI consulting across medical, automotive, and consumer industries
Project Engineer, Hasbro India (2017–2022)NERF Fortnite · NERF Rivals · Mr. & Mrs. Potato Head · Pre-school action lines
MS Computer Engineering, U of M-Dearborn · GPA 3.64Embedded Systems · Cloud Computing · Supply Chain Management (A) · Engineering Management (A+)

Featured Work

Products built.
Problems solved.

A curated selection of products and platforms developed across medical devices, consumer electronics, VR simulation, and AI deployment.

Hasbro NERF and entertainment product portfolio, global NPI programs
Consumer Electronics · Global NPI

Hasbro, NERF & Entertainment Lines

Led electromechanical NPI programs for NERF Fortnite, Rivals, Elite Stryke, Mega Stryke, Mr. & Mrs. Potato Head, and pre-school lines, concept through global retail launch across NA, Europe, and Asia in 30-week cycles. Managed $5M to $25M sourcing scale-up over three years.

Embedded SystemsPCB DesignFCC · CEInjection Molding
AI and LLM platforms, OpenAI, Anthropic, Gemini, Copilot, Llama, Mistral
AI · Operations Automation

Production LLM Deployment

Built and deployed production AI-powered customer support and document control systems using LLM-based automation at a regulated medical device company, reducing operational overhead and enabling a continuous post-launch product feedback loop.

ChatGPTClaudePrompt EngineeringProduction Deployment
Electric Vehicle PHOENIX, KIIT e-BAJA Team, Baja SAE competition
Capstone · Baja SAE Competition

Electric Vehicle "PHOENIX"

Designed and built a competition electric vehicle for a Baja SAE-format event, integrating drivetrain systems, motor control, power electronics, and structural engineering from concept through competition deployment.

Power ElectronicsMotor ControlSystems Integration

Recognition

Recognized for
building what matters.

Subhrojyoti Dey presenting OralVac+ at 5 Across Startup Showcase, Lexington KY
2026 · KY Inno / Louisville Business First

"Startup to Watch", Kentucky 2026

Toothsure® named a 2026 Startup to Watch by KY Inno and Louisville Business First, recognizing innovation in bedside oral care systems and the company's potential to transform clinical oral hygiene protocols in hospital and long-term care environments.

Read the Full Feature ↗
2025

Market Disruptor

Placed at 5 Across Startup Showcase, Lexington, KY, recognized for disrupting the clinical oral care market.

2024

Published Author

Systems-innovation article on bedside oral care featured by TestlabsUK, selected for publication on Outlook. Read Article ↗

Hasbro

Above & Beyond Award

Received for extraordinary leadership in Project Engineering at Hasbro, Inc. across global NPI programs.

2024

Alpha Kappa Psi

Member, AKPsi Eta Nu Chapter, University of Michigan-Dearborn professional business fraternity.


Intellectual Property

5 USPTO Patents
Co-Authored.

Published utility patents spanning dental technology, oral care devices, and mechanical innovation, co-authored across Toothsure and client engineering programs.

Patent illustration
US20240090656A1
Syringe Toothbrush
A novel oral care device integrating syringe-based fluid delivery with brushing mechanics, enabling waterless oral hygiene in clinical and bedside environments for patients who cannot access traditional brushing.
View Patent ↗
Patent illustration
US20240090657A1
Electric Toothbrush
An electrically-actuated toothbrush system designed for assisted oral care in hospital and long-term care settings, optimizing cleaning efficiency while minimizing caregiver effort and procedure time.
View Patent ↗
Patent illustration
US20240245497A1
Sedation Toothbrush
A specialized oral care instrument engineered for use on sedated or unconscious patients in ICU and surgical environments, addressing the unique access and compliance challenges of critical care oral hygiene.
View Patent ↗
Patent illustration
US20240166003A1
Automatic Trailer Hitch
An automated trailer hitch coupling mechanism that eliminates the need for manual alignment during hitching, improving safety and usability for drivers operating solo without a spotter.
View Patent ↗
Patent illustration
US20250275834A1
Artificial Palatal Expansion Kit
A next-generation rapid palatal expansion device incorporating embedded electronics for programmable force delivery and treatment monitoring, enabling more precise and patient-friendly orthodontic expansion therapy.
View Patent ↗

Contact

Let's build
something great.

Open to product management, engineering leadership, and entrepreneurial opportunities in the United States and Canada.