I build production-grade mobile apps that ship.
React Native / Software Engineer with 2+ years shipping production apps across EV-tech, aviation, and fitness — from white-label architecture and payments to performance and real-time features.
2+
Years of experience
30+
App deployments
10+
Major features shipped
1200+
Hours of DSA
Solutions built to meet the requirement
(01 — Capabilities)
Mobile App Development
Building and maintaining production-grade React Native apps for iOS and Android using TypeScript, the New Architecture, JSI, and TurboModules.
White-Label Architecture
Scalable white-label systems with dynamic theming and Firebase Remote Config, running 30+ branded apps from a single shared codebase.
Payment Integrations
End-to-end workflows across multiple payment gateways (Razorpay, Stripe, PayPlus, and more) — SDK integration, order lifecycle, transaction handling, and failure scenarios across thousands of transactions.
Performance Optimization
Improving startup and runtime performance with lazy loading, API-load reduction, FlatList, React.memo, and useCallback for smooth mid-range devices.
Backend & APIs
RESTful APIs with Node.js, Express.js, and MongoDB — including JWT auth, indexing, validation, and aggregation for data-heavy endpoints.
Real-Time Features
Shipping live, real-time user workflows — status updates, push notifications, and instant data sync — that keep thousands of users in sync across devices.
2+ years building production mobile apps
(02 — Work)
Software Developer Engineer I
Kazam
30+
Branded apps shipped
~40%
Faster startup
~80%
More stable releases
- Developed and maintained production React Native apps for an EV charging platform, supporting 30+ branded apps and thousands of users across iOS and Android.
- Built scalable white-label architecture with dynamic theming and Firebase Remote Config, enabling multiple branded apps from a shared codebase.
- Integrated multiple payment gateways end-to-end (Razorpay, Stripe, PayPlus, and more) — SDK integration, order lifecycle, transaction handling, and failure scenarios.
- Improved app startup performance by ~40% and release stability by ~80% through lazy loading, render optimization, and a dedicated stable/release workflow.
Where I learned the craft
(03 — Background)
Aug 2022 - Oct 2023
Full Stack Web Development (Full Time)
Masai School
July 2019 - June 2022
Bachelor's Degree in Computer Science
Awadesh Pratap Singh University
Selected recent work
(04 — Projects)
2025 — Present
Kazam — White-Label EV Charging Platform
React Native · SDE I
A React Native platform powering 30+ branded EV-charging apps from a single shared codebase — dynamic theming, Firebase Remote Config, multi-gateway payments, and real-time charging and user workflows across iOS and Android. Improved startup ~40% and release stability ~80%.
Powering brands like
2024
Anugraha — Pilot Training App
React Native Developer
A cross-platform aviation app for airline pilot training — dynamic, field-validated data-entry forms (30% faster data entry) and a calendar-based scheduling module that replaced manual coordination with a structured, filterable workflow.
2023 — 2024
Trifit — Fitness App
React Native · Full Stack
Authentication and user-profile modules for the Trifit fitness app using Redux and protected navigation, with JWT auth and refresh flows, backed by RESTful Node.js / Express / MongoDB APIs with indexing and validation.
Tools I build with
(05 — Stack)
- Mobile
- React Native (New Architecture, JSI, TurboModules), Redux, Expo
- Frontend
- React, Next.js, TypeScript, JavaScript, Tailwind CSS
- Backend
- Node.js, Express.js, REST APIs
- Databases
- MongoDB, PostgreSQL, MySQL, Firebase (Firestore, Remote Config, Auth)
- Payments
- Razorpay, Stripe, PayPlus & more (SDK, Order Lifecycle, Transaction Handling)
- Tools
- Git, Firebase, GitHub Actions
- Core
- Data Structures & Algorithms, System Design
Let's work together.
© 2026 Harsh Shukla. All rights reserved.