01
Fast Notification Delivery
Connected Firebase Cloud Messaging with high priority so trade signals reach users without background delay.
./FinTech & Mobile/Mobile & Real-time Integration Lead
Published: · Updated:
Jack Arrows Real-Time Trading Signals Application
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
Delivered via Firebase Cloud Messaging
Payment Gateway
PayKun Verified
Instant UPI and NetBanking confirmation
Markets Covered
NSE / Nifty / MCX
Equity, Index, and Commodity feeds
User Retention
High Engagement
Real-time trade entry and exit alerts
[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
Key architectural breakthroughs delivered.
02
PayKun Gateway Setup
Integrated PayKun for smooth payment collection via UPI, debit cards, and net banking to activate paid plans.
03
Clean Trading UI
Created a clean dark theme displaying buy/sell prices, target 1/2/3 levels, and stop loss points.
[04] Systems Architecture
Data flow & service topology.
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] Measurable Business Outcome
Production impact & verified results.
Production Verified · 2021
Engineered real-time trade alert delivery under 1.5 seconds via Firebase Cloud Messaging, supporting PayKun payment checkout for multi-asset commodity and equity advisory.
[06] Delivered Artifacts
Production deliverables & engineering milestones.
- Jack Arrows Flutter mobile application for Android & iOS
- Live trade call feeds with Free and Paid tier access controls
- Instant FCM push alert receiver with foreground alert handling
- Integrated subscription purchase and receipt management
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