Case Study — Web3 Payment Gateway

BlockATM

Building a compliant crypto payment gateway from zero to $100M+ in processed transactions

Timeline
2023 — 2026
Role
Product Owner & Product Designer
Team
8 Engineers, Compliance
Domain
Web3 · FinTech · Payments
Overview

The Challenge

BlockATM is a Web3 payment gateway enabling merchants to accept cryptocurrency payments via smart contracts across multiple blockchain networks.

As the Product Owner, I led the entire product lifecycle — from initial concept and market research through to launch and scaling. The platform enables merchants to accept crypto payments without deep technical knowledge, while maintaining full regulatory compliance.

Merchants wanting to accept crypto payments faced three critical barriers: complex smart contract integration, regulatory compliance uncertainty (AML/KYC), and fragmented multi-chain support. Existing solutions were either too technical for non-crypto-native merchants or lacked proper compliance frameworks.

Process

How We Built It

A four-phase approach from discovery to scale, with continuous iteration based on merchant feedback.

Phase 1 — Discovery

Market Research & User Interviews

Conducted competitive analysis of 12 existing crypto payment solutions. Interviewed 20+ potential merchant users to understand pain points, compliance concerns, and integration requirements. Identified the gap: no solution offered both simplicity and regulatory compliance.

Phase 2 — Definition

Product Strategy & Roadmap

Defined product vision and success metrics. Created a phased roadmap: MVP (single-chain, basic payments) → V1 (multi-chain, dashboard) → V2 (AML/KYC integration, withdrawal management). Wrote detailed PRDs and functional specification documents for each phase.

Phase 3 — Design & Build

Wireframing, Prototyping & Sprint Execution

Led design sprints to create user flows for wallet connection, payment processing, and merchant dashboard. Managed 2-week Agile sprints with the engineering team. Made critical technical decisions on smart contract architecture and multi-chain support strategy.

Phase 4 — Launch & Scale

Go-to-Market & Growth

Coordinated launch across marketing, sales, and support teams. Established merchant onboarding process. Monitored product analytics to identify optimization opportunities. Managed exhibition booth design and presence at Web3 conferences.

Results

Impact & Outcomes

$100M+
Crypto Transactions Processed
Multi-Chain
Blockchain Support (ETH, Arbitrum, Tron)
Full
AML/KYC Compliance Integration
Deliverables

Key Outputs

Payment Flow Architecture
Payment Flow Architecture — End-to-end user journey from wallet connection to transaction completion
Wallet Connection UI
Wallet Connection — Simplified onboarding for non-crypto-native merchants
Merchant Dashboard
Merchant Dashboard — Real-time transaction monitoring and analytics
Withdrawal Management
Withdrawal Management — Secure fund withdrawal with multi-sig protection
Signature Management
Signature Management — Configurable approval workflows for enterprise clients
Exhibition Booth
Web3 Conference Presence — Exhibition booth design and brand activation
Reflection

Key Learnings

Building in a regulated Web3 space taught me invaluable lessons about trust, compliance, and user experience.

"Compliance isn't a blocker — it's a competitive advantage. Merchants chose BlockATM specifically because we solved the compliance problem they couldn't solve alone. I also learned that in crypto, user trust is everything: every UI decision had to communicate security and transparency."

What I'd Do Differently

  • Start compliance conversations earlier — regulatory requirements shaped more of the product than anticipated
  • Invest more in developer documentation from day one — technical merchants wanted deeper integration options
  • Build analytics dashboards sooner — data visibility became a key differentiator for enterprise clients
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