Trivandrum, Kerala · Available for work

Avinash Sreekumar

Cross-Platform Full-Stack Developer + On-Device AI

I build and ship full products end-to-end across web, mobile and edge AI: React / Node / MongoDB on the backend, Flutter and native Android (Kotlin) on the frontend, and on-device LLM inference with Gemma 3n via LiteRT. Five live products in 2025–2026.

  • 3 live Play Store apps
  • 2 production web apps
  • 4 stacks shipped (React, Flutter, Kotlin, Node)

Shipped Work

Live products in production — Google Play, public web URLs and the stacks behind them.

Localyze app icon

Localyze

Offline AI chatbot · Native Android · Gemma 3n via LiteRT

Closed Testing → Production

A fully offline AI assistant. The 3B-parameter Gemma 3n model runs on-device using Google's LiteRT runtime — no network, no API calls, no data leaves the phone. Built in Kotlin with Jetpack Compose, optimised for low-RAM devices.

  • Kotlin
  • Jetpack Compose
  • LiteRT
  • Gemma 3n (on-device)
  • Gradle KTS
The Ledger Report app icon

The Ledger Report

Narrative business-strategy game · Flutter · India, 1947–1965

Live on Play Store

A choice-driven strategy game following five protagonists through post-independence India. Every decision is permanent: capital, reputation, family and truth track across 18 years of history. Built with Flutter, Riverpod state management and go_router.

  • Flutter
  • Dart
  • Riverpod
  • go_router
  • intl
The Ledger Report — gameplay screenshot 1 The Ledger Report — gameplay screenshot 2 The Ledger Report — gameplay screenshot 3
Praarthana app icon

Praarthana

Daily Hindu prayer · panchang · puja planning

Live on Play Store

A daily companion for Hindu prayer: panchang guidance, puja scheduling and curated mantras. Designed for low-friction daily use with a calm, focused UI.

  • Android
  • Material 3
  • Local notifications
Praarthana screenshot 1 Praarthana screenshot 2 Praarthana screenshot 3

Stock Portfolio Pro

Full-stack portfolio tracker · Node + Mongo + D3 + Stripe

Live

A real-money-grade stock portfolio tracker. Node/Express backend with MongoDB, Alpha Vantage market data, D3-rendered price charts and Stripe-backed subscriptions. End-to-end auth, encrypted storage and a responsive frontend.

  • Node.js
  • Express
  • MongoDB
  • Alpha Vantage API
  • D3.js
  • Stripe

PlayShip

Productized Google Play submission service · Astro + Tailwind

Live

A productized service that takes founders from "I have an idea" to "live on the Play Store" without dealing with Google's submission maze. Built as a fast, SEO- and LLM-discoverable Astro site (llms.txt, structured data) deployed on Render.

  • Astro
  • Tailwind
  • Render
  • SEO / llms.txt

Stack

What I actually use to ship — grouped by where it lives in the product.

Web

  • React
  • Node.js / Express
  • MongoDB
  • HTML / CSS / JavaScript
  • Astro
  • Tailwind
  • D3.js

Mobile

  • Flutter (Dart)
  • Riverpod, go_router
  • Native Android (Kotlin)
  • Jetpack Compose
  • Gradle KTS

AI / ML on Edge

  • On-device LLM inference
  • Gemma 3n
  • LiteRT (TensorFlow Lite)
  • Model quantisation
  • Prompt engineering

Infra & Ops

  • Git / GitHub
  • Render, Vercel
  • Stripe
  • Play Console release management
  • REST APIs

About

I'm a cross-platform full-stack developer based in Trivandrum, Kerala. I built my career on the MERN stack and have since pushed hard into mobile (Flutter, native Android) and on-device AI — shipping real apps on Google Play that put 3B-parameter language models on a phone without a network round-trip.

I was Lead Web Developer at MeOmics in the UK from April 2024 to January 2025. I hold an MA in Digital Media Design from Birkbeck, University of London (2023). Now back in India, building products end-to-end.

The honest version: I'm a generalist who ships. I'm fastest when I own a product from the spec to the Play Console release notes.

Videos

Walkthroughs of the work and references on the techniques behind it.

On-device Gemma with LiteRT Reference talk — the runtime behind Localyze. TODO(avi): swap this with your own Loom of Localyze running offline.
Flutter + Riverpod architecture Reference — the patterns behind The Ledger Report. TODO(avi): swap with your own gameplay walkthrough.
Astro in production Reference — the framework behind PlayShip. TODO(avi): swap with a tour of playship.pro or stockportfolio.pro.

Let's talk

Best for: full product builds, mobile / on-device AI work, or taking an idea from spec to Play Store.