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Rene Puentes
Senior Go/Python Full-Stack Engineer specializing in cloud-native microservices
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Backend/data engineer with hands-on production experience across FastAPI microservices and AWS (Lambda, ECS, SQS, RDS, S3), plus Glue/Athena analytics pipelines. Demonstrates strong reliability and operations focus (timeouts/retries, centralized errors, CloudWatch monitoring) and measurable SQL optimization impact (25s to under 2s). Seeking fully remote senior developer role at ~$150k base.
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Key Strengths
- Built and maintained production FastAPI services with Docker, Postgres, Redis, and JWT auth
- Reliability engineering: timeouts, retries with backoff, centralized error handling, logging/monitoring
- Delivered AWS production architecture using Lambda + ECS with SQS for async workloads
- ETL on AWS Glue (PySpark) from S3 (CSV/JSON) to Parquet for Athena, including schema evolution and data quality handling
- Incident response for batch/data jobs using alerts and log-based triage; added preventative validation checks
- SQL performance tuning using execution plans and indexing (reduced query runtime ~25s to <2s)
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