Anuj Kaushik
curious about most of the stackai software engineer / mobile · backend · system design
I build things
that talk to
the real world.
I build production-grade applications that scale. Specializing in highly performant Flutter apps, robust backend architectures, and intelligent AI integrations.
currently building AI-driven mobile products end to end — app, backend, and the architecture between them. hardware is where I stay curious, not where I claim to be an expert.
Engineering notes / 01
“I don't just build mobile apps —
I build software that interacts with the real world.”
- mobile apps
- ai
- backend systems
- architecture
- humans
My work spans Flutter and Android, backend engineering, system design, and AI — products that hold up in production, from the screen down to the architecture behind it, including connected devices and healthcare software. I care about clean architecture, performance, and building systems that scale beyond the first release.
Where I've been building
seven entries. logos, dates and notes exactly as they happened.
Sensio Enterprises
Mobile Engineer Intern
technical notes (6)
- Engineered production-grade Flutter applications for connected healthcare devices, implementing Bluetooth Low Energy (BLE) communication, real-time sensor streaming, and reliable device connectivity across varying signal conditions.
- Architected a scalable data processing pipeline to ingest, parse, and persist high-frequency physiological sensor data locally using Isar, enabling smooth offline access and efficient retrieval of large datasets.
- Optimized application performance by introducing asynchronous processing, background data handling, and memory-efficient state management, ensuring responsive UI rendering during continuous real-time data acquisition.
- Designed interactive health analytics dashboards using Syncfusion Charts, visualizing large-scale physiological datasets with timeline reconstruction, filtering, zooming, and high-performance rendering.
- Implemented Clean Architecture with BLoC to decouple presentation, domain, and data layers, improving maintainability, testability, and feature scalability across multiple application modules.
- Collaborated closely with firmware engineers, backend developers, and product teams to validate BLE protocols, debug device communication, and deliver production-ready healthcare features.
Stealth Startup
Mobile Application Developer
technical notes (4)
- Engineered a scalable video streaming platform supporting both short-form (shorts) and long-form video content playback.
- Integrated a robust recommendation engine to personalize content discovery and enhance user engagement.
- Spearheaded major UI/UX improvements, optimizing application responsiveness, fluid animations, and overall user experience.
- Developed mobile applications focusing on rapid prototyping, scalable architecture, and quick MVP delivery for an early-stage startup.
Advan Drive Technologies Pvt. Ltd.
Full Stack Developer
technical notes (7)
- Developing VibeMap, a location-based social networking platform enabling users to connect, discover events, and interact based on real-world locations with location-based feed, organization-based communities, and proximity-based content filtering.
- Building scalable geo-social infrastructure with Flutter frontend, Node.js backend, PostgreSQL/MongoDB databases, and WebSockets for real-time communication, real-time chat, notifications, and Google Maps integration.
- Implementing role-based content visibility, Google Maps geo-visualization, event discovery engine, and real-time notification system with scalable REST APIs.
- Worked on a Hyperlocal commerce application with Flutter mobile frontend, Node.js backend, and MongoDB database supporting real-time order flows and scalable operations.
- Architecting real-time order tracking, authentication & session management, order lifecycle management, and Payload CMS integration for dynamic content management.
- Optimizing database queries for scalability, implementing modular backend architecture, and designing multi-tenant infrastructure for high availability.
- Integrating Payload CMS for content management, ensuring secure API design, and maintaining code quality across frontend and backend services.
MeraNivas
Full Stack Developer / Backend EngineerFreelance
technical notes (10)
- Designed and developed a role-based backend system supporting Super Admin, Admin, Staff, and Residents with secure access control.
- Built a Visitor Management System with QR-based pre-approvals, frequent visitors, helper/maid tracking, and attendance logging.
- Implemented subscription lifecycle management including plans, renewals, reminders, and automated cron jobs.
- Developed financial modules for maintenance billing, event invoices, payments, settlements, budgets, and analytics.
- Created a complaint and feedback workflow with society-level resolution and centralized escalation.
- Engineered a notification and announcement system enabling role-based alerts and system-wide broadcasts.
- Built amenity booking and scheduling APIs with availability checks and approval flows.
- Implemented user onboarding, bulk uploads, and profile management for societies, residents, and staff.
- Developed secure data export and reporting features with date-range filtering.
- Ensured scalable REST APIs, optimized database queries, and multi-society architecture for high availability.
MediaJedi
Full Stack Developer Intern
technical notes (2)
- Designed and developed dynamic, reusable React widgets for cross-project integration.
- Integrated Node.js backend with MongoDB and implemented reusable widget architecture.
JobToken
Flutter Developer Intern
technical notes (5)
- Integrated Google Maps for location-based services and implemented GST verification for businesses.
- Implemented GST verification workflow for business onboarding, including API integration and validation logic.
- Developed a toll fare calculation engine using route-based distance computation and pricing logic.
- Built scalable UI components using Flutter & FlutterFlow, ensuring responsive layouts and clean architecture patterns.
- Integrated Firebase services including Authentication, Firestore, updates and secure user management.
GeekHub UIET
App Developer
technical notes (2)
- Mentored students in mobile app development and conducted Flutter workshops.
- Guided real app builds and supported student projects.
Things I've built
some survived production. some taught me something.
ApkTrace
In-Memory Android APK Inspector
ApkTrace
A lightweight, privacy-focused Android application analyzer built with Flutter and BLoC Clean Architecture. It parses APK zip headers directly in memory without disk extraction to detect framework signatures (Flutter, React Native, KMP, Unity, etc.), inspect brownfield hybrid architectures, and decompress Flutter assets and pub.dev package dependencies.
NeoShare
Real-Time File Sharing
NeoShare
Real-Time Cross-Device File Sharing Platform. Architected an anonymous identity provisioning system using atomic Firestore transactions to enforce collision-safe 6-character short-code registration. Engineered a chunked resumable upload pipeline via Firebase Storage with per-file SHA-256 integrity verification and sub-2-second real-time progress. Implemented native Android MediaStore integration and foreground service persistence via Pigeon platform channels.
College Management System
Android Management App
College Management System
Android application for college management with features like student enrollment, attendance tracking, grading, and event scheduling. Developed using Java and Firebase/SQLite. Integrated Firebase / SQLite for permanent data storage and efficient querying.
3 on file — each one shipped, broke, and got fixed at least once.
// archive is append-only. nothing here has been quietly deleted.
open the full archive ↗Tools I keep around
inventory sheet. no proficiency bars — they were never honest anyway.
Languages
- JavaScript
- TypeScript
- Dart
- Java
- SQL
- HTML
- CSS
Mobile
- Flutter
- Android Studio
Backend
- Node.js
- Express.js
- Prisma
Data
- PostgreSQL
- MongoDB
- MySQL
- SQLite
- Redis
Tools
- Git
- Jira
- Postman
- Docker
- AWS
- Vercel
// the list is the boring part. what matters is which ones I reach for first, and why.
What I'm reading
papers, articles and books currently open on the desk. the list changes.
Attention Is All You Need
Vaswani et al. · arXiv:1706.03762
read it ↗opens elsewhere
Stop Letting Everything Affect You
Daniel Chidiac
One Codebase, Every Screen: How Scapia Built a Multi-Platform Flutter App
Medium · Miles & Megabytes
read it ↗opens elsewheregithub / kxushix
proof that the keyboard wasn't decorative.
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