Siva Sai Takkellapati

Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate

Language

English
Fluent

Work Experience

React Native Developer at PFGC
May 1, 2024 - Present
Architected and developed an enterprise cross-platform React Native 0.74 (TypeScript) mobile app for iOS and Android, serving field sales reps, store managers, and delivery staff across multiple business units. Built a scalable navigation system using React Navigation with 35+ screens; implemented dual authentication flows (Azure AD B2C for customers and Microsoft SSO for employees) with JWT token handling. Enabled offline-first order persistence with SQLite and AsyncStorage, and integrated WebSockets for real-time order updates. Implemented multiple hardware barcode scanning solutions and Zebra/printing integrations; designed a global data architecture using Zustand and React Context to manage session, active store, cart, and device info. Prepared iOS native configurations, MFi declarations, and managed release pipelines via Fastlane and CI/CD (Azure DevOps/Jenkins).
React Native Developer at Accenture
November 1, 2021 - July 1, 2022
Developed a multi-platform telecom/utilities application suite comprising a React Native mobile app and a React.js web portal. Built cross-platform UIs with TypeScript, React Native, React Navigation, and Animated API; created a shared reusable component library; implemented in-app push notifications with Firebase Cloud Messaging; integrated RESTful APIs and GraphQL endpoints with Axios; implemented secure authentication (JWT/OAuth 2.0) and biometrics; optimized performance for large data sets; added CI/CD pipelines with Jenkins, GitHub Actions, and Azure DevOps; built native modules bridging iOS/Android; contributed to QA/testing and Agile processes.
Mobile Developer at Coforge
October 1, 2019 - September 1, 2021
Developed and maintained cross-platform mobile features using React Native, Expo, and JavaScript. Implemented UI screens, FlatList optimizations, push notifications, and hardware peripheral integrations (Zebra scanners, device-level interfaces); collaborated in Agile ceremonies and maintained code quality with PR reviews.

Education

Master of Science in Computer Science at University of Bridgeport – CT, USA
September 1, 2022 - April 1, 2024
Bachelor of Engineering in Electronics & Communication at MVJ College of Engineering – Bangalore, India
August 1, 2017 - June 1, 2021

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Telecommunications, Education