Available for remote contract

Cross-platform full‑stack developer.

I’m Avinash Sreekumar — I ship fintech, mobile, and on-device AI products end-to-end. Five products shipped in the last six months, solo.

Role
Full-stack developer
Based
Trivandrum, India
Focus
Fintech · Mobile · On-device AI
Shipped
5 products in 6 months

About

I ship small, complete things.

I’m a cross-platform full-stack developer based in Trivandrum, India. I like shipping small, complete things — a working product you can hand to a user, not a slide deck. Over the last six months I’ve taken five products to production, solo and end-to-end: a fintech dashboard, an on-device AI chat app, a Flutter strategy game, a multilingual prayer app, and PlayShip — a productized Google Play submission service.

Previously I was Lead Web Developer at MeOmics (UK), where I led a full WordPress → modern JavaScript redevelopment — owning architecture, delivery, and release cycles (Apr 2024 – Jan 2025). I hold an MA in Digital Media Design from Birkbeck, University of London. After my UK Graduate visa term ended I returned to India, and I now build independently.

On the side I’ve gotten Gemma-class LLMs running on Snapdragon NPUs — including the “unsupported” 8 Gen 1 (Hexagon v69) — verified at ~31 tok/s on a OnePlus 10 Pro. I’m open to remote contract work, with a fintech and data-visualization specialism. If that fits what you’re building, let’s talk.

Selected work

Commercial products, shipped solo.

Each one taken from idea through build, release, and the app store — end-to-end.

Featured · Fintech web app

Stock Portfolio Pro

A production fintech dashboard. Node.js + Express, MongoDB Atlas, and vanilla JS with custom D3.js v7 SVG charts. Live market data via yahoo-finance2 with an Alpha Vantage fallback, JWT plus Google/Facebook OAuth, and Stripe-gated paid tiers. A tiered TTL cache (60s quotes → 12h fundamentals) and a ~2.5 req/s outbound throttle keep it fast and within rate limits.

  • Node.js
  • Express
  • MongoDB
  • D3.js
  • Stripe
  • OAuth
Android · On-device AI

Localyze

A native Android (Kotlin) chat app running Gemma 3n on-device via LiteRT — fully offline, with no server cost and no per-query latency. Ships with a Playwright-driven eval harness for prompt/response quality. Currently in closed testing under Play Store review.

  • Kotlin
  • Gemma 3n
  • LiteRT
  • Playwright
Flutter · Google Play

The Ledger Report

A narrative business-strategy game set in India, 1947. Built solo in Flutter (Dart, Riverpod, go_router, intl) and taken from concept through closed testing to full production release on Google Play.

  • Flutter
  • Dart
  • Riverpod
Kotlin Multiplatform · Google Play

Praarthana

A Kotlin Multiplatform Hindu prayer app for the diaspora, centered on Bhadra Bhagavathi Temple, Karunagapally. Includes a 14-chapter illustrated “Discover Hinduism” section and a multilingual UI (EN / HI / ML / TA / TE). Full release lifecycle through Play Console.

  • Kotlin Multiplatform
  • Play Console
Product · Web service

PlayShip

A productized Google Play submission service — I take a finished app through Google’s review gauntlet to a published listing. The marketing site is a static Astro 6 + Tailwind v4 one-pager (self-hosted Geist fonts, sitemap, Formspree intake) that auto-deploys via GitHub Actions.

  • Astro
  • Tailwind
  • Render

Stack

Tools I reach for.

Web

JavaScript / TypeScript, React, Node.js, Express, MongoDB, D3.js, REST APIs

Mobile

Flutter (Dart, Riverpod), Native Android (Kotlin), Play Console release workflows

AI

Gemma 3n / LiteRT (on-device), Claude Code workflows, Playwright eval harnesses

Infra

Git / GitHub, Render, custom domain + HTTPS, AWS / Azure (basic)

Get in touch

Let’s build something.

Open to remote contract work — fintech and data-viz preferred. I read every message and reply within a day, usually faster.