Widgets and embeddable flows

Embeddable on-ramp and off-ramp systems require coordination across frontend, backend and partner environments. I built the first version from scratch in 2019. Integration quality directly impacts trust.

Partners: Trusted by Ledger, TREZOR, Edge and Phemex.

Architecture:

• Versioned integration contracts with controlled evolution.
• Explicit state modeling supporting retries and recovery.
• Observability focused on funnel visibility and actionable errors.
• Optimized asset delivery for fast startup and cache efficiency.

Delivery:

• Integration via callbacks, redirects and webhooks.
• Frontend and API components evolving in alignment.
• Explicit handling of partial failures with bounded retries.
• Operator tooling designed for fast diagnosis and resolution.