Rene Ledesma

I’m a senior software engineer with 9+ years building backend platforms with Node.js, TypeScript, AWS, SQL, and event-driven architecture. I architect production-grade REST APIs and data pipelines that keep systems reliable as products scale.

At Proliance Consulting, I designed REST APIs and event-driven services with NestJS, PostgreSQL, Redis, Kafka, and AWS to support dependable transaction processing. I built a usage and revenue integrity pipeline for 80,000+ business customers, reducing revenue leakage from 5% to below 0.3% and cutting manual invoice corrections from 42% to 4%.

I also delivered subscription renewal and entitlement workflows that processed 50,000 renewals in under 30 minutes using idempotent consumers, retry policies, durable state transitions, and automated reconciliation. I optimize PostgreSQL schemas and query plans to lower latency and reduce contention during peak processing, and I lead architecture/code reviews plus incident debugging.

Previously, I built regulated operational workflows with secure, versioned REST APIs and resilient Kafka-based processing for delayed, duplicated, and out-of-order messages. Across earlier full-stack roles, I shipped customer-facing platforms with TypeScript, React, Node.js, and PostgreSQL, emphasizing pragmatic architecture, automated testing, and observability (with OpenTelemetry, Prometheus, and Grafana) so teams can move fast without breaking reliability.