Built and scaled core customer-facing apps using React, Elixir, Node.js, and PostgreSQL. Led full product lifecycles from concept to deployment, integrated third-party APIs, and improved system performance with background jobs and observability tools like Datadog.

Helped re-architect the backend from REST/SQL to GraphQL/MongoDB. Built scalable microservices with Node.js, Go, and Docker. Designed APIs, improved testing coverage, and worked closely with clients to deliver secure and flexible integrations.