André Medeiros

Director of Software Engineering @TELUS

Delivered a record-breaking Black Friday by scaling customer-facing systems to handle peak load with zero downtime, mitigating prior year’s failure points through infrastructure hardening and load-tested fallback strategies- Led org-wide improvements in operational maturity: modernized on-call practices, embedded observability into development workflows, and increased real-time monitoring adoption by over 60%- Decommissioned multiple legacy systems (including on-prem data grids, Oracle-based reporting platforms, and call center infrastructure), reducing complexity and unlocking $1M in forecasted annual savings- Improved backend API performance by over 3× by migrating from legacy caching systems to Redis, introducing lazy loading, and implementing zero-downtime deployment strategies using traffic mirroring, blue/green, and canary rollouts- Scaled a national loyalty platform to support 5.7M active users with 75% automated test coverage and doubled deployment frequency through CI/CD and shift-left testing practices- Built shared platform capabilities—such as auto-remediation tooling, AI-assisted change validation, and dynamic content templating systems—that accelerated delivery across product teams and improved release safety.