A

Ayrton da Silva Iseri

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São Paulo, Brazil

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Résumé

Jobs verified_user 0% verified
  • Degica
    SRE engineer
    Degica
    Dec 2024 - Current (1 year 6 months)
    • Implement a CI/CD pipeline for a client reporting service. • Manage database and application-level secrets using Terraform, AWS SSM, and AWS Secrets Manager. • Designed and deployed a Kinesis stream to log query activity on a critical credit card database service, improving monitoring and observability. • Built a notification system for deployment pipelines that automatically tags developers on Slack when their PRs reach production, increasing awareness of breaking changes. • Deployed self-hosted GitHub Actions runners by managing an auto-scaling cluster of spot instances with Terraform. • Tech Stack: GitHub Actions, GitHub Apps, Atlantis, SOPS, Terraform, Container Orchestration (ECS), CodePipeline, AWS Developer Tools, Python, AWS
  • Degica
    SRE Intern
    Degica
    Aug 2023 - Dec 2024 (1 year 5 months)
    • Provisioned a redshift cluster, reducing query latency by 90% for workloads that previously relied on Aurora. • Optimized data dashboards through SQL refactoring, reducing query latency by up to 50%. • Implemented a pipeline to anonymize production data into staging environment, reducing the lag between staging and production from ~6 months to ~1 day average. • Tech Stack: Python, Terraform, Redshift, AWS RDS, SQL, DMS, Glue, Lambda, Cloudwatch, S3, Airflow.
  • Big Data
    Data Engineering Internship
    Big Data
    Dec 2022 - Jul 2023 (8 months)
    • Helped to implement a Data Lakehouse with the medallion paradigm. Consumption latency reduced from ~1 hour to ~3 minutes. • Refactored +20 airflow pipelines with idempotency and best practices which led to a reduction in data downtime of +50%. • Reduced cloud costs by refactoring data pipelines and replacing provisioned resources by serverless ones. • Improved data quality company-wide by referring and implementing a GX
Education verified_user 0% verified
  • A
    AWS Certified Solutions Architect – Associate
    Mar 2025 - Current (1 year 3 months)
Projects (professional or personal) verified_user 0% verified
  • C
    Computer Vision for food retail
    May 2023 - Jun 2023 (2 months)
    • Firmware for ESP32 cameras deployed on-site in my uncle's bakery and supermarket. • MQTT connection to establish communication and authenticate the device via X.509 certificates. • Upload images through an HTTP request on a dynamically generated S3 pre-signed URL. • YoLoV4 model to classify uploaded images, count shelves, and highlight stocks. • Tech Stack: C/C++, Arduino, Python, PyTorch, AWS, S3, IoT Core, Fleet Manager,