Hello there

I'm Devayan Mandal

Full Stack Developer|

I craft seamless, engaging, and responsive digital experiences using cutting-edge technologies. Passionate about building products that make a difference.

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Devayan Mandal
Devayan Mandal

Devayan Mandal

Full Stack & Blockchain Developer

10 Projects
2 Internships
100∞ Learning
Passionate about building robust, scalable web apps, secure systems, and decentralized solutions. Always learning, always shipping!

My Journey

Turning ideas into impact through full-stack development, open-source contributions, and blockchain innovations.

Roles & Internships

2024 — Full Stack Developer (Intern) at PHICSIT (Soft Codehack)
React, Node.js, MongoDB
2024 — Full Stack Developer (Intern) at PHICSIT
React, Node.js, MongoDB
2024 – Present — Full Stack Developer at PHICSIT (Nexfellow)
React, Node.js, MongoDB

Projects & Highlights

2024 — Team Lead & Developer on PramaanPatra
NFT, Blockchain, Certificate System
2024 — Team Lead & Developer on AssetHub
Solidity, Ethereum, Web3.js
2024 — Patent Filed on Proximity-Based Safety App
Smart Community, Emergency System

My Tech Stack

Python

90%

Description: Scripting, ML, backend, automation.

JavaScript

85%

Description: Web, backend, and tooling.

C++

80%

Description: Competitive programming, systems.

Java

75%

Description: OOP, Android, backend.

Rust

60%

Description: Safe, fast system programming.
AI: Based on your interests, try learning TypeScript next!

Projects

PramaanPatra Featured
PramaanPatra

Decentralized certificate management system using blockchain. Securely generates, stores and validates certificates.

ReactNode.jsSolidityMongoDBWeb3.js
CareData
CareData

Blockchain-based medical record platform with bookings, labs, video consults, and patient blog.

ReactNode.jsSolidityMongoDB
AssetHub Featured
AssetHub

Ethereum-based registry for land and vehicles. Secure asset tracking via smart contracts.

ReactNode.jsSolidityMongoDBWeb3.js
Exposio
Exposio

Virtual exhibitions platform with real-time booths, galleries, and chats. Full-stack React and Node.

ReactNode.jsSocket.ioMongoDB
Portfolio Website
Portfolio Website

This portfolio site built with React, Bootstrap, scroll animations, and component architecture.

ReactBootstrapCSSVercel

Patents

Proximity Based Safety and Community Empowerment App
202431029543 A Apr 26, 2024
The Proximity-Based safety and community empowerment apps signify a revolutionary leap in safety technology. This abstract provides an exhaustive overview, emphasizing the inventive use of proximity and geolocation technologies, a community-driven approach, and the app's capacity to address safety concerns in real-time. It encapsulates the essence of the invention, offering a glimpse into its transformative potential.
See patent

Resume

Devayan Mandal

Full Stack Developer • System Designer • Web3 Enthusiast

Kolkata, IN devayan9689@gmail.com LinkedIn GitHub Portfolio
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Full Stack DevelopmentSmart ContractsSystem DesignREST APIsWeb3ReactNode.jsMongoDBSolidityCloudCybersecurity

Work Experience

PHICSIT, New Delhi

Full Stack Developer (Freelance)Oct 2024 – Present

Architecting Nexfellow platform, building scalable REST APIs, reusable components.

Full Stack Developer (Intern)Sep 2024 – Oct 2024

Integrated Ethereum smart contracts with React frontend and backend APIs.

Soft CodeHack

Web DeveloperJul 2023 – Sep 2024

Built responsive hackathon platform, ensured performance across devices.

Volunteering

Microsoft

MS Learn Student AmbassadorOct 2023 – Oct 2024

Conducted global workshops on GitHub, Azure, and FOSS principles.

Education

B.Tech in Information Technology

JIS College of Engineering • 2021 – 2025

Specialized in AI, Cloud, Web, and Cybersecurity.

Senior Secondary (CBSE)

Kendriya Vidyalaya, Fort William • 2019 – 2021

PCM + CS • 79%

Secondary (CBSE)

Kendriya Vidyalaya, Fort William • 2018 – 2019

69%

Let's work together!