./FinTech & Mobile/Mobile & Real-time Integration Lead

Real-time trading alerts and tips on Flutter with instant push notifications.

Jack Arrows delivers stock, index, and commodity trading calls directly to traders' phones the moment they are published.

My Role: Mobile & Backend Integration Engineer
Focus: High-priority push notifications, payment gateway & real-time UI updates
Project Type: FinTech Mobile Application
Timeline: Production Delivery

Notification Latency

<1.5s

Payment Gateway

PayKun Verified

Markets Covered

NSE / Nifty / MCX

User Retention

High Engagement

[01] The Challenge

Operational bottlenecks & constraints.

Ensuring push notifications wake up phones and show alerts with minimal delay.

Gating premium trade recommendations behind subscription paywalls cleanly.

Designing a clear dark interface where entry prices, stop-losses, and target prices are easy to read at a glance.

[02] Engineering Contribution

Connected Firebase Cloud Messaging with high priority so trade signals reach users without background delay.

Integrated PayKun for smooth payment collection via UPI, debit cards, and net banking to activate paid plans.

Created a clean dark theme displaying buy/sell prices, target 1/2/3 levels, and stop loss points.

[04] Systems Architecture

01.Flutter mobile application with responsive component hierarchy

02.Firebase Cloud Messaging for push dispatch

03.PayKun payment gateway SDK for Indian payment methods (UPI, Cards, NetBanking)

04.SMS OTP authentication ensuring secure individual device binding

[05] Delivered Artifacts

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Reach out with your technical requirements or timeline for a rapid architecture audit.

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