FULL STACK ENGINEER

Architecting
Scalable Systems

I build websites, full-stack web apps, mobile & desktop apps, handle cloud backends on AWS, and create multi-agentic AI systems.

Debsourya Datta
// Services

What I Can Build

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Languages & Core
Strong Foundations

Languages & Core

Proficient in multiple programming languages with deep understanding of algorithms, data structures, and software engineering principles.

JavaScriptTypeScriptPythonSolidityRust
Clean Code Architecture
Algorithm Design
Performance Optimization
Code Reviews
Frontend Development
Pixel Perfect Interfaces

Frontend Development

Crafting responsive, performant, and visually stunning user interfaces that deliver exceptional user experiences across all devices.

ReactNext.jsReact NativeTailwind CSSElectron
Responsive Design
Web Extensions
PWA Development
UI/UX Implementation
Backend Development
Robust & Scalable APIs

Backend Development

Building high-performance backend systems and RESTful APIs that handle millions of requests with reliability and security.

Node.jsHono.jsExpressFastAPIGraphQL
REST APIs
WebSocket Services
Microservices
Authentication
Database Systems
Data Architecture

Database Systems

Designing efficient database schemas and implementing data pipelines for optimal performance and data integrity.

PostgreSQLMongoDBRedisPrismaDrizzle
Schema Design
Query Optimization
Data Modeling
Caching Strategies
Infrastructure & DevOps
Cloud Native Solutions

Infrastructure & DevOps

Deploying and maintaining scalable cloud infrastructure with modern DevOps practices for continuous delivery.

AWSDockerKubernetesCloudflareKafka
CI/CD Pipelines
Container Orchestration
Serverless
Monitoring
AI & Machine Learning
Intelligent Systems

AI & Machine Learning

Developing AI-powered applications with cutting-edge LLMs, RAG pipelines, and intelligent automation workflows.

LangChainOpenAIPineconen8nRAG
AI Agents
RAG Pipelines
Vector Databases
Automation
Blockchain & Web3
Decentralized Apps

Blockchain & Web3

Building secure smart contracts and decentralized applications across multiple blockchain networks.

SolidityEthers.jsHardhatViemPonder
Smart Contracts
DeFi Protocols
Cross-chain
NFT Systems
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// Portfolio

Selected Works

6 Projects
Olloi
View Live
01
Professional · Backend Architecture

Olloi

Multi-tenant social media platform for corporate teams with serverless AWS architecture (Lambda, Aurora, SQS, EventBridge). Features a 15+ sub-agent AI system for content generation & moderation, vector-based personalization, and multilingual TTS via ElevenLabs.

Technologies
HonojsAI SDKAWS LambdaAuroraSQSEventBridge
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YAP
View Live
02
Professional · Mobile App

YAP

Multilingual language learning app with AI-powered pronunciation grading (Azure Speech), real-time voice tutoring (ElevenLabs), and on-chain token rewards on Sei blockchain. Features CEFR-based adaptive learning across 5+ languages.

Technologies
React NativeExpoAzure SpeechElevenLabsEthers.js
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Mesmer AI
View Live
03
Professional · AI Platform

Mesmer AI

AI-driven outbound calling platform automating sales outreach at scale. Orchestrates 10,000+ lead workflows with Twilio, Retell AI, and OpenAI. Includes RAG-powered support chatbot with ~85% resolution rate.

Technologies
Next.jsFastAPILangChainPineconeTwilio
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AIVerse
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04
Personal · AI Learning Platform

AIVerse

AI-powered learning platform with automated course generation via LangChain, real-time AI Voice Mentor (Groq Whisper + Deepgram), Stripe credits monetization, and social features including profiles, follows, and gamified leaderboards.

Technologies
Next.jsFastAPILangChainPrismaStripeAWS
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Snapcast
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05
Personal · Screen Recording

Snapcast

Screen recording and video sharing platform with WebRTC MediaRecorder for real-time capture, ImageKit CDN delivery, Arcjet security (bot detection, rate limiting), and Google OAuth via Better Auth.

Technologies
Next.js 15Drizzle ORMNeonImageKitArcjet
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MCPDesk
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06
Personal · Desktop App

MCPDesk

Cross-platform desktop MCP client for AI agents and tool-enabled LLMs. Features dynamic model selection via OpenRouter, configurable MCP server connections, and multi-step agentic execution (up to 30 reasoning steps).

Technologies
ElectronReactTypeScriptLangChainOpenRouter
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