Paygreen Back Office

Fintech / Online Payment

Dashboard for merchants managing their online payments and stores

Context

Paygreen - French Fintech

6 months

Lead frontend in a product team of 8

Modernize the back office used daily by thousands of merchants. The old interface was outdated and lacked key features (2FA, advanced transaction management, payment method configuration).

My Role

Lead Frontend Developer

RESPONSIBILITIES

—Complete React interface redesign with Chakra UI
—Stripe + Paygreen API integration (real-time transaction management)
—Secure authentication implementation (JWT + 2FA)
—State management architecture with Recoil
—Internationalization (i18n) for multi-market support

DELIVERABLES

Modernized back office with enhanced authentication, real-time transaction tracking, API key management

Results

✓Interface used daily by 5000+ merchants
✓Significant reduction in support tickets thanks to improved UX
✓2FA authentication deployed to enhance account security

ACHIEVEMENTS

•Successful migration from legacy stack to modern React
•Zero downtime during progressive deployment

Technical Stack

TECHNOLOGIES

ReactReact RouterStripeFramer MotionChakra UIJWTRecoili18nTwo-Factor AuthenticationAPI IntegrationFintech

KEY FEATURES

—Real-time transaction tracking
—Payment method configuration
—Secure authentication
—API key management
—Hosted payment page
—Role management

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