Selected work
Enterprise-grade applications I've architected and built — full-stack development, cloud infrastructure, and scalable system design.
12 featured below, out of 50+ delivered overall
JanvaaniAI
Real-Time AI Voice-Calling SaaS Platform
A multi-tenant SaaS platform built from scratch that lets builders and brokers automate customer engagement through real-time AI voice calls, campaign management, and lead tracking. Powered by an AI voice-agent pipeline where Deepgram streams speech-to-text, an LLM generates contextual replies, and Murf AI synthesizes natural outbound speech.
Technologies
Key Features
- Real-time AI voice agent (Deepgram STT → LLM → Murf AI TTS)
- Multi-tenant architecture with RBAC and org-level data isolation
- Campaign management and lead tracking dashboards
- Optimized PostgreSQL query plans and Redis caching for low latency
- Call transcripts in MongoDB with campaign/lead indexing; automated PDF invoicing
Full Stack Developer
Spearheaded the platform across frontend dashboards, backend API integration, authentication flows, AI workflow orchestration, and production deployment on AWS EC2 behind Nginx with PM2 and TLS.
Bandish
Music Riyaz App
Bandish is a Hindustani and Carnatic classical-music practice app combining tabla, tanpura, manjira, metronome, and voice recorder into one mobile experience, built with React Native in Expo's bare workflow. It has scaled to 50,000+ active users across the App Store and Play Store.
Technologies
Key Features
- Real-time, low-latency native audio processing driving tabla, tanpura, manjira, and metronome engines
- Waveform visualization synced in real time with recorded playback via careful audio-buffer and rendering-performance management
- Built-in voice recorder for structured practice sessions
- Performance tuning to reduce unnecessary re-renders for smooth playback on lower-end Android devices as well as iOS
Lead Mobile Engineer
Led and mentored a team of 3 engineers on the core engineering team through code reviews, technical planning, and release cycles, ensuring consistent code quality and timely delivery.
QH - Fluid Trend
Offline-First Field Engineer Mobile App
A cross-platform mobile app for field engineers supporting scheduled and ad-hoc activities in both online and offline modes. Built on an offline-first architecture using SQLite and Outbox synchronization for reliable data capture and sync, with QR scanning, FMID measurement flows, and telemetry logging.
Technologies
Key Features
- Offline-first architecture (SQLite + Outbox synchronization)
- QR scanning and FMID measurement flows
- Telemetry logging and reliable data sync
- Scheduled and ad-hoc activities in online/offline modes
Lead Mobile Developer
Led development of the app and mentored a team of mobile developers, handling code reviews, sprint planning, and stable production releases.
Acharya Chahat - Portfolio
Astrology Consultation & Booking Platform
Professional astrology consultation platform with appointment booking, Razorpay payments, Google Calendar sync, client CRM, blog, and a full admin panel. Built with Next.js and MongoDB, deployed on AWS EC2. Live at acharyachahat.com.
Technologies
Key Features
- Appointment booking with single/multi-person, online/in-person/phone consultation types
- Razorpay payments (UPI, card, net banking) with abandoned slots auto-expiring via MongoDB TTL
- Google Calendar sync — events auto-created on booking with .ics invites emailed to attendees
- Full admin panel: dashboard, appointments, client CRM, contacts, testimonials, blog, and availability management
Solo Full Stack Developer
Designed and built the entire platform end-to-end — public website, multi-step booking flows, payment integration, Google Calendar sync, admin panel, and JWT-secured APIs — and deployed it to production on AWS EC2 behind Nginx with PM2.
Book My Game (BMG)
Sports & Venue Booking Platform
Book My Game is a user-friendly platform connecting players with sports venues. Venue hosts can register facilities, manage availability, and streamline bookings while players can discover and reserve venues easily.
Technologies
Key Features
- Venue registration and booking system
- Host management dashboard
- Pricing and availability control
- Multi-user access with real-time updates
- Responsive and intuitive UI
Frontend-Focused Full Stack Developer
Led UI architecture and dashboard implementation, optimized venue booking flow, and collaborated with backend team to integrate REST APIs. Mentored junior devs on state management and modular UI patterns.
GISUL
Interactive Learning Platform
GISUL revolutionizes e-learning through expert-curated courses, interactive modules, and real-time engagement. Users can browse, learn, and connect with instructors effortlessly.
Technologies
Key Features
- Course discovery and enrollment system
- Interactive and multimedia-based modules
- Inquiry and messaging system for students
- Instructor engagement and management tools
Full Stack Developer
Designed modular Next.js components, integrated REST APIs for course management, and implemented responsive UI layouts with Tailwind. Collaborated in sprint planning and deployment on Hostinger.
Ed-Tech LMS
AI-Integrated Learning Management System
An advanced Ed-Tech platform providing AI-powered personalized learning, online classes, and quizzes. Features chatbot-assisted Q&A and automated evaluations for educators and learners.
Technologies
Key Features
- AI-integrated chatbot for learning assistance
- Interactive quizzes and class sessions
- Teacher-student collaboration tools
- Progress tracking and analytics dashboard
Dashboard & AI Integration Lead
Architected AI integration workflows, designed adaptive UI layouts, and led API integration. Ensured accessibility and responsive design across devices.
Horizon Pro
Workflow Management Platform
A platform to create, approve, and manage workflows with built-in collaboration and decision-tracking features for teams and organizations.
Technologies
Key Features
- Custom workflow builder
- Role-based access and approvals
- Activity tracking and audit logs
- Real-time notifications and collaboration
Full Stack Developer & Technical Decision Maker
Led architecture design for role-based access and authentication layers. Collaborated with UI/UX teams to deliver user-centric workflow creation experience.
Watugot
Crypto Asset Management & Trading Platform
Watugot provides real-time crypto tracking, secure trading, and portfolio management tools for digital asset investors and traders.
Technologies
Key Features
- Live crypto price updates
- Secure buy/sell/trade system
- Market sentiment analytics
- User-friendly trading dashboard
Frontend Lead
Developed responsive dashboard UI, optimized state management, and ensured high performance for real-time data updates. Coordinated with backend team for API sync.
Zylm
CRM & Workflow Management Platform
Zylm streamlines internal workflows and task management across teams, enabling organizations to collaborate efficiently and manage their operations in one place.
Technologies
Key Features
- Task and project tracking system
- Integrated communication and notes
- Cross-department workflow management
- Role-based permissions and dashboards
Frontend Developer
Led Angular Material UI implementation, ensured responsive design and scalability, and collaborated with backend for API integration and performance tuning.
Gym App
Fitness Tracking & Coaching App
A mobile fitness app offering personalized workout plans, nutrition tracking, and progress visualization to help users reach their goals efficiently.
Technologies
Key Features
- Personalized workout plans
- Progress and analytics dashboard
- Nutrition and calorie tracking
- Social and motivational features
Full Stack App Developer
Architected full mobile workflow using React Native, built backend APIs, and implemented offline-first capabilities for fitness data tracking.
Music Play App for Clubs
Music Request & DJ Engagement App
A dynamic app that lets club-goers request songs to DJs, make instant payments, and personalize their nightlife experience while rewarding DJs and venues fairly.
Technologies
Key Features
- Song request and payment integration
- Real-time song queue management
- Revenue sharing for DJs and venues
- Interactive and gamified club experience
Full Stack App Developer
Developed full-stack mobile app architecture, implemented secure payment flows, and optimized real-time song request handling using socket-based APIs.