Asheesh Sahu

Engineering leader building consumer mobile and web products at Flash. 10+ years shipping at scale across Flutter, React, and the full product stack — from custom mobile infrastructure to web performance and growth engineering.

2022 — Present

Lead Engineer · Web & Mobile

Sole architect of the Flash mobile app and Next.js web platform — scaled to 1M+ downloads and 4M+ MAU. Own the Flutter architecture, Shorebird OTA pipeline, custom image-caching layer, Core Web Vitals optimization, and the cross-platform consistency story across iOS, Android, and web.
2020 — 2022

Senior Engineer · Credit Platform

Oyster Financial Inc.
Owned frontend architecture for the React Native mobile app and web applications of a fintech credit platform. Partnered with compliance and backend teams to ship secure, regulation-aligned financial experiences.
2018 — 2020

Product Engineer · Mobile

AlMusbah Group (via ToppersEdge)
Built and launched Android and iOS apps end-to-end, integrating marketing and engagement tooling to drive retention and lifecycle messaging.
2017 — 2018

Software Engineer · Payments

Creo (Acquired by Hike)
Contributed to payments microservices, ensuring scalability and reliability of transaction flows.
2015 — 2017

Sr Application Developer

uCertify
Led development of e-learning mobile apps on Android and iOS from scratch, and built an offline-first sync mechanism enabling users to take tests offline and reconcile results on reconnection.