ω = √(k/m)
T = 2π/ω = 2π√(R₀/g)
∫x²e^(ax)dx
Q_total = Q₁ + Q₂
1 - (-1/(n+2))^(n+1)
(-1)^(n+1) · 1/(n+2)^n
C₁ = C₂ = ε₀·S/d₁
x[m]
S_F
ω = √(g₀/R₀)
e^(ax)
dF/dh
CO₂
Hg
H₂O
S₁, S₂
n+1/n+2
ε^(ax)
Available for new projects

Jibon Roy

@rj-roy

Full Stack Developer building intelligent systems — AI Driven
Turning research into products.

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SelectedWork

Systems designed to handle users, data, and complexity.

Forever Paws

Forever Paws

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A modern full-stack platform for adopt a pet or list a pet to get adopted

ReactNext.jsNode.jsMongoDBExpressJWTREST APIVercelRenderCloudinaryBetter AuthGemini Api
Startup Forge

Startup Forge

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A modern full-stack platform for connecting founders, collaborators, and admins in a startup ecosystem.

ReactNext.jsNode.jsMongoDBExpressJWTStripeREST APIVercelRailway
Hire Loop

Hire Loop

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A full-stack modern AI-powered recruitment and career platform

ReactNext.jsNode.jsMongoDBExpressJWTStripeREST APIVercelRailway
Medi Queue

Medi Queue

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A full-stack education platform connecting rural classrooms.

ReactNext.jsNode.jsMongoDBExpressREST APIVercel

TECH/ Use

Tools behind the systems I design and develop.

TypeScript
React
N
Next.js
Framer Motion
Chakra UI
Shadcn UI
Redux Toolkit
Figma
React Native
Expo
Electron
Node.js
Express
MongoDB
PostgreSQL
Firebase
Docker
Kubernetes

Full Stack Developer buildingscalable & real-time systems

I'm Rj Roy, a software engineer focused on building high-performance web applications. From frontend to backend, I enjoy turning complex ideas into products that actually work at scale.

My programming journey began with curiosity about how websites work. What started with learning HTML and CSS quickly grew into exploring JavaScript, React, and full-stack development. Over time, I expanded my skills toTypeScript, React, Next.js, and Node.js, Express.js, MongoDballowing me to build complete applications from frontend interfaces to backend services and databases. Every project has been an opportunity to learn something new, refine my problem-solving skills, and become a better engineer. , I've built everything from AI-powered developer tools to full SaaS platforms. I care deeply about clean architecture and shipping fast without breaking things.

I believe great software isn't just written — it's crafted with intent.

What PeopleSay AboutMy Work

Testimonials from colleagues and clients

Imran Pradhan

Imran Pradhan

Senior Backend Developer

@Stellar Code

I had the pleasure of working with Rj Roy, and I was always impressed by how quickly he understands problems and comes up with effective solutions. He is a talented developer and a great team player who is always willing to help others. It was great collaborating with him.

20+
Happy Clients
46+
Projects Delivered
100%
Satisfaction Rate

CONNECT&Craft

Find me across the web.

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