Andre' Vella

Hub88 Core Platform  ·  Elixir · OTP · PostgreSQL · Phoenix

• Replica/primary read-routing with configurable window, fallback logic, and observability.
• HTTP client abstraction layer with per-operator configurable timeouts and tracing.
• Transaction engine: field-level change detection to avoid unnecessary updates.
• Release management and CI maintenance.
• Worked within an Agile team: sprint planning, Kanban board management, and planning poker for estimation.

pay.io - crypto payment platform  ·  Elixir · Phoenix · Absinthe GraphQL · RabbitMQ · Oban · Keycloak (Jun 2025 - May 2026)

• Passkey (FIDO2/WebAuthn) authentication end-to-end, including device-bound credentials and recovery key support.
• Audit-trail subsystem with automatic recording of audited GraphQL operations.
• Treasury APIs: hot-to-cold transfers and balance pages.
• Merchant currency management: per-currency wallet settings and configurable thresholds.
• Withdrawal abstraction with decimal-precision validation and status filters.
• Tron (TRX) integration: fee estimation, withdrawal flow, testnet/mainnet handling, and OpenWallet provider integration.

Knowledge Fabric - ASP.NET Core MVC  ·  C# · Entity Framework Core · SQL Server · Razor Views · JavaScript

• In-app notification system with paginated retrieval, bulk mark-as-read, and a live-updating navbar dropdown.
• Clean-up facility administration module with on-demand analysis refresh and a purge flow guarded against concurrent execution.
• Built and filtered various dashboard widgets, allowing users to scope results.

Elixir · Phoenix · React · Camunda · Zeebe · Azure

• Worked on the business portal: stakeholder meetings, requirements gathering, and feature delivery.
• Contributed to KYB systems and core shared libraries including business process engines, PDF generation, authentication, and others.