Eric
Santana.

Founding Engineer production Rust + AWS, end-to-end

• Led TypeScript → Rust migration of the entire backend (Poem framework), serving the same workload on 50% fewer EC2/Beanstalk instances.
• Architected multi-environment AWS infrastructure in Terraform -ECS, RDS, ElastiCache, ALB, KMS, Secrets Manager -with environment isolation and audit-gated promotions.
• Designed and led an end-to-end iGaming supplier integration (schema → API → settlement) and shipped KYC + geofencing for regulated jurisdictions.
• Migrated authentication to Privy for unified Web3 SSO, and integrated Relay for cross-chain deposits -users fund accounts from any chain.
• Stood up an MLOps platform from scratch: SageMaker domain with custom lifecycle configs, AWS Glue ETL, training/promotion pipelines, and a production inference API.
• Drove ~30% AWS cost reduction across the account; introduced k6 load testing and CloudWatch-based observability to catch issues before release.

DevOps Engineer Kubernetes on bare metal

• Architected a 6-node bare-metal Kubernetes setup (3 prod, 3 staging) using Helm and ArgoCD, with GitHub Actions pipelines for microservice CI/CD.
• Built the observability stack -Grafana, Loki, OpenTelemetry, Prometheus, Thanos -covering 10 gRPC microservices with long-term metric retention.
• Shipped a data-analytics service on Metabase backed by PostgreSQL read replicas, isolating reporting load from production traffic.

Software Engineer back-office for Brazilian fiscal docs

• Built the API + frontend for the back-office platform managing Brazilian notas fiscais, plus B2B partnership analytics dashboards.
• Worked on a NestJS + tRPC microservices stack with a microfrontend / BFF pattern in React.

Backend Engineer integrations on GCP

• Developed B2B integrations in TypeScript, Node.js, and .NET on Google Cloud (App Engine, Firebase, Pub/Sub), processing real-time data across multiple regions.
• Maintained legacy .NET services alongside new cloud-native work for mission-critical operations.

Full-stack Developer ad-tech at real-time scale

• Built a push-notification system on AWS SNS + MongoDB for a React Native client; shipped OTA updates via CodePush.
• Maintained a real-time conversions/clicks stream on Node.js + AWS Athena/RDS, plus a webscraper cronjob over AWS SQS.
• Cut cloud spend ~8% by benchmarking EC2 instance types, tuning load balancers, and trimming CI/CD pipeline duration.