Hi there, I'm Kartikey Mahawar 👋

🚀 About Me

Lead Flutter Fullstack Developer with ~3 years of experience building high-performance, cross-platform applications. I specialize in architecting concurrent Flutter frontends, real-time pipelines (gRPC, WebSockets), and distributed backend systems. Currently scaling multi-tenant SaaS platforms at Cladbe with 10K+ daily users.

💡 What I Do:

• Build production-ready cross-platform apps (Web, iOS, Android, macOS, Windows)
• Design event-driven microservices and real-time sync systems
• Create open-source tools for the Dart/Flutter ecosystem
• Win hackathons (5+ major wins including SIH 2022 & GrabHack 2025)

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🏆 Achievements

🥇 GrabHack 2025 (Backend track) - 2nd Prize Winner 
🥇 Smart India Hackathon 2022 - 1st Prize Winner
🥇 Defence Innovation Hackathon 2022 - 1st Prize Winner
🥇 Nasscom Academic Grand Challenge (Wells Fargo) - 1st Prize
🥉 Bajaj Finserv Hackrx 3.0 - Third Prize Winner
🥉 Hack The Mountains 2.0 - 3rd Prize Winner

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🛠️ Tech Stack

Languages

Frontend & Mobile

Backend & Real-Time

Databases & Infrastructure

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🔥 Featured Open Source

🎯 Fletch - Express for Dart

Production HTTP framework with SSE, streaming, middleware. Featured on Medium.

app.get('/api', (req, res) => res.json({'status': 'ok'}));

📦 Knex Dart - SQL Query Builder

Type-safe query builder with 100% Knex.js API parity. 268 tests passing.

💬 Mongo Chat Dart - Real-time Chat SDK

Direct messages, group chats, read receipts, WebSocket streams for Dart backends.

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💼 Professional Highlights

Lead Flutter Fullstack Developer @ Cladbe (2024 - Present)

• Cross-platform apps serving 10K+ daily users (Web/iOS/Android/Desktop)
• Built concurrent file upload system: 37% faster, 50% less memory, CPU 200%→50%
• Architected event-driven backend with gRPC, Kafka CDC, Neo4j GBAC

First Engineer @ Amiltus/Cladbe (2023 - 2024)

• Architected entire real-estate platform from ground up
• Established CI/CD, Flutter best practices, and team scaling patterns

Software Developer Intern @ Wells Fargo (2023)

• ML-driven enterprise workflows with React, Socket.io, MongoDB

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📊 GitHub Stats

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📝 Latest Writings

• Fletch: Building Production-Ready Backends in Dart

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📫 Let's Connect

Open to collaborations in: Flutter/Dart backends • Real-time systems • Performance optimization • Open-source tooling

💼 LinkedIn • 📧 Email • 🌐 Website • ✍️ Medium

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If you find my work interesting, consider giving it a ⭐