Secure Geo-Validated Fintech SDKs

Product challenge

Make regulated wallet actions—deposits, withdrawals, and transfers—feel straightforward to end users while giving enterprise partners a secure integration path across their chosen platforms. Product adoption depended as much on documentation, reference apps, and release confidence as it did on the transaction code.

Product and engineering approach

• Led a cross-functional team and worked directly across the partner-integration surface, turning security, compliance, device, and geolocation requirements into usable product flows.
• Architected SDKs for React, React Native, JavaScript, Flutter, and native iOS, supported by reference applications and integration documentation.
• Built Express.js and Next.js services in Docker where the product needed server-side coordination.
• Implemented custom OAuth for secure authentication inside embedded partner experiences.
• Automated testing, builds, and releases with GitHub Actions and Fastlane, then added Sentry and GCP logging and alerts to shorten the path from production issue to diagnosis.

Outcome

• Onboarded six enterprise clients across multiple technology stacks.
• Gave partners a clearer, faster integration route through purpose-built SDKs, examples, and documentation.
• Supported secure, compliance-aware payment experiences without pushing that complexity onto the end user.
• Improved release stability and operational visibility across client and backend components.