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FinTech / Deposit & Investment Management

MobiCrypto

MobiCrypto is a robust FinTech application enabling users to purchase investment packages, track automated crypto deposits via CoinPayments & Bybit integration, earn multi-level referral commissions, and participate in Hall of Fame leaderboard contests.

ReactMaterial UI (Jumbo)Node.jsExpressMongoDBCoinPayments APIBybit APINode-CronSpeakeasy 2FA
Year Completed2025
Engineering RoleFull-Stack Architect
Project TypeCrypto Deposit & Investment Platform
Live Demo Logins
User Credentials:
Username: user1
Password: 12345678
Admin Credentials:
Username: admin
Password: 12345678
MobiCrypto
The Production Challenge

Tracking manual crypto deposits and calculating complex binary commission percentages across thousands of active members leads to missed payouts and delayed transaction confirmations.

The Engineering Solution

Integrated automated CoinPayments IPN webhooks and Bybit API listeners combined with Node-Cron background jobs to instantly record deposits, process package investments, and calculate binary commissions.

Key Engineered Features

Automated Crypto Deposit Gateway

Instant deposit processing via CoinPayments and Bybit SDK integration.

Investment Package Engine

Multiple package tiers with automated yield calculations and maturity tracking.

Hall of Fame Leaderboard

Dynamic competitions awarding top investors and referral partners.

Binary & Referral Commission Engine

Multi-level referral tree with automated binary balance matching and payouts.

Admin Control Console

Complete member management, deposit verification queue, commission adjustments, and contest controls.

Platform Dashboard Visuals

MobiCrypto Preview 1
👤 User Operational Workspace
MobiCrypto Preview 2
🛡️ Admin Master Command Console

Technical Architecture Breakdown

SYSTEM ARCHITECTURE BLUEPRINT
PRODUCTION VERIFIED
1. Client & Gateway

React application powered by Material UI (Jumbo React) with responsive dashboard views.

Gateway: Express API with IPN webhook signature verification and rate-limited endpoints.
2. Business & Service Layer

Node.js core server running Node-Cron scheduled background payout workers.

3. Database & AWS Cloud

MongoDB Atlas utilizing atomic transaction updates for wallet balance accuracy.

Cloud: AWS EC2 server with SSL encryption, Nginx reverse proxy, and automated database backups.

Development Lifecycle & Steps

01

API & Webhook Architecture

Integrated CoinPayments IPN webhooks and Bybit API credentials for crypto deposit handling.

02

Investment & Yield Calculation

Engineered backend logic for package returns, maturity dates, and daily yield distribution.

03

Binary Commission Worker

Built Node-Cron job queue calculating weak-leg matching bonuses at scheduled intervals.

04

Hall of Fame & Admin Console

Designed leaderboard dashboard and administrative deposit approval tools.

05

Deployment & Security Audit

Hardened API endpoints with Speakeasy 2FA TOTP authentication and deployed to AWS.

Technical Obstacles & Solutions

ENGINEERING OBSTACLE 01

Challenge: Handling unconfirmed crypto transactions and preventing double-crediting when webhook callbacks retried.

Solution: Implemented idempotent transaction hashes in MongoDB with confirmation status verification, preventing duplicate balance credits.

ENGINEERING OBSTACLE 02

Challenge: Heavy server load during daily binary commission calculation runs across active user networks.

Solution: Batch-processed referral calculations in chunked background queues using Node-Cron, maintaining zero downtime on active user dashboards.

Verified Production Metrics

✓ Benchmarked on AWS Infrastructure
100%
Automated Deposit Reconciliation
0
Duplicate Payout Errors
99.9%
Platform Service Availability
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