Open to Opportunities

Hi, I'm Suraj Gupta

Senior Android & Multiplatform Developer

4+ years crafting production-grade fintech applications. Specialized in Kotlin Multiplatform, iOS development, MVVM architecture, and secure payment systems. Published 4 apps on the iOS App Store.

4+ Years Exp
12 Android Apps
4 iOS Apps
val developer = Developer(
  name = "Suraj",
  role = "Senior Android dev",
  skills = listOf("KMP", "Compose")
)
Get To Know Me

About Me

Professional Summary

I am a Senior Android & Multiplatform Developer with a strong foundation in building high-performance, production-grade applications. Over the past 4+ years, I have specialized in Kotlin Multiplatform (KMP), native Android, and iOS development, successfully delivering 12 Android apps and 4 iOS apps to the market.

My expertise lies in crafting secure fintech solutions, implementing complex payment gateways, ensuring PCI DSS compliance, and architecting scalable, shared business logic across platforms. I am passionate about writing clean, maintainable code and building seamless cross-platform experiences that drive user engagement and business impact.

Name Suraj Gupta
Phone +91 70116 11740
Location New Delhi, India
Marital Status Married
Career Path

Work Experience

Jan 2026 – Present Noida

Senior App Developer

TFC Digital Private Ltd.

KMP Payment Gateways iOS & Android
  • Building TFC Pay using Kotlin Multiplatform (KMP), shipping a single shared codebase across Android and iOS.
  • Integrated Razorpay and Cashfree payment gateways end-to-end.
  • Engineered a Credit Card to Bank Transfer flow with full PCI DSS compliance.
  • Architected a shared business logic layer in KMP, reducing platform-specific duplicate code by ~90%.
  • Built Chat Support using Firebase Realtime Database, Storage, and Authentication for Android & iOS, and developed a separate KMP web app for staff members to reply.
Jun 2024 – Dec 2025 Noida

Senior App Developer

Yoke Payment India Pvt. Ltd.

KMP Firebase
  • Sole developer of WltPe, a bill payment and recharge platform handling ₹1 Cr+ in monthly transactions.
  • Architected and shipped 2 cross-platform apps using Kotlin Multiplatform (KMP).
  • Achieved 96% crash-free sessions by implementing real-time monitoring and structured error handling.
Jun 2023 – May 2024 Lucknow

Android Developer

Sahaz IT Solutions Pvt. Ltd.

  • Built enterprise fintech modules (AEPS, DMT, UPI) using MVVM, Coroutines, and Retrofit.
  • Reduced app startup time by 25% via Android Studio Profiler optimization.
May 2022 – May 2023 Noida

Android Developer

ICC Loyalty

  • Rebuilt the UI layer of a loyalty application using Kotlin.
  • Refactored legacy Java code to Kotlin with MVVM + Dagger.
Jan 2022 – Apr 2022 Noida

Android Developer

Nera Soft & Finserv Pvt. Ltd.

  • Developed full-cycle fintech applications from scratch, including AEPS, DMT, and bill payments.
  • Built a secure API integration layer with token-based authentication and data encryption.
Portfolio

Notable Projects

TFC Pay

Fintech super-app for bill payments, mobile recharges, and money transfers. Sole developer, processing ₹1 Cr+ in monthly transactions.

KMP Ktor Koin
View on Playstore

Call2Owner

Cross-platform KMP app enabling anonymous parking communication via QR codes. Features a real-world KMP architecture with shared business logic.

KMP Android iOS
View on Playstore

InterQue

Interview preparation platform with a curated question bank, topic-wise quizzes, and an integrated resume & cover letter builder.

Android Preparation
View on Playstore

Budget Tracker

Personal finance app for tracking daily income and expenses. Implements Firebase Authentication and Realtime Database for cross-device synchronization.

Firebase Finance
View on Playstore

Resumaker

Application to build professional resumes and cover letters using pre-built, customizable templates.

Android Productivity
View on Playstore

Music Player

Feature-rich music player supporting local storage playback with Firebase-backed cloud synchronization. Implements a freemium model.

Media Play Billing
View on Playstore
Expertise

Technical Skills

Mobile & Languages

Kotlin Swift Java Android Native KMP Compose / SwiftUI

Architecture & Core

MVVM Clean Architecture Hilt / Koin Coroutines Room / SQLite DataStore

Network & Firebase

Retrofit / Ktor REST APIs Crashlytics FCM / Auth Realtime DB

Security & DevOps

PCI DSS Encryption CI/CD (GitHub Actions) Git LeakCanary
Academic Background

Education

B.Sc. (Honours) Computer Science

Aatma Ram Sanatan Dharma College, Delhi University

Class of 2017