Abhay

Senior Software Developer

Rakuten

Dec 2021 - Mar 2026 • 4 yrs 3 mos

Shipped AI call summarization to production for 10M+ users by integrating Claude LLM APIs with speech-to-text pipelines, designing the prompt, the summary schema and the client integration end to end. Improved call stability and reduced real-time latency for 10M+ users of Rakuten Link by building its WebRTC calling stack and leading two engine migrations (M77 to M114, M114 to M140) with deep NDK tuning. Maintained high crash-free session rates across Android and iOS by building resilient React Native SDKs, reusable modules and native bridges managed as packages in an Nx and Lerna monorepo, with offline-first synchronization for unstable networks. Built backend services and RESTful APIs powering Rakuten Link's WebRTC calling and mobile clients in Node.js, integrating REST and GraphQL with Jest unit tests and Detox end-to-end suites guarding critical flows. Reduced cold start time and memory footprint through systematic profiling of native and JS thread performance, applying the same budgets to web surfaces built with React Hooks and Redux Toolkit on Webpack and Rspack bundles through Core Web Vitals and frontend performance debugging. Raised team engineering standards by mentoring 10+ engineers on performance profiling and native crash debugging, while owning CI/CD releases for Google Play and the App Store.

Senior Software Developer

Reliance Industries

Nov 2020 - Dec 2021 • 1 yr 1 mo

Built customer-facing and internal apps (JWC, JWD) in Flutter, Android and React Native with Bloc and GetX, introducing Flutter to the team. Developed Node.js and Java microservices exposing RESTful APIs on AWS (DynamoDB, S3) and integrated SAP enterprise systems for internal workflows. Owned CI/CD pipelines and releases across the mobile and API estate, working with DevOps on deployment automation and containerized deployments with Docker.

Senior Software Developer

Maybank

Mar 2018 - Nov 2020 • 2 yrs 8 mos

Architected and built internal admin systems and dashboards using Next.js, Node.js and PostgreSQL as a micro-frontend architecture: independently deployed dashboard zones with Module Federation style composition and Next.js multi-zone routing behind a reverse proxy, shared component libraries, cross-application communication, distributed rendering and CDN caching, integrated with the mobile banking backend. Led development of the Maybank2u and MAE banking platform, building React Native frontends and working hands-on in the Java (Spring) banking backend, delivering secure, high-performance financial applications with payment gateway integration for millions of users across iOS and Android. Developed WebRTC video calling for smart glasses using custom native modules and C++ NDK integration.