Gabriel Siqueira Müller

Cloud Engineer | Backend Developer

AWS Certified Solutions Architect – Associate

Summary

Computer Engineer with professional experience in IT infrastructure and backend development, focused on AWS cloud architecture and infrastructure automation. Hands-on experience designing and deploying serverless applications, building APIs, and provisioning infrastructure using Terraform and CI/CD pipelines.

Tech Stack

Cloud Projects

The Cloud Resume Challenge (AWS)

Built and deployed a serverless cloud-based resume application on AWS.

  • Deployed a secure static website on Amazon S3 and CloudFront, using Origin Access Control (OAC) to restrict direct access.
  • Built a serverless backend API (API Gateway, AWS Lambda/Python) to interact with a DynamoDB visitor counter.
  • Provisioned the entire architecture using Terraform and automated deployments via GitHub Actions.

Github Repository & Documentation

Professional Experience

IT Technical Analyst & Backend Developer

Vertys Energy Group | July 2022 – Present

  • Re-architected and replaced the legacy Sankhya ERP integration using Python, reducing average order synchronization time by 66% (from 7.5 to 2.5 minutes).
  • Designed and deployed a production e-commerce platform (vertyshome.com.br) using Vite, Python, and Supabase, featuring secure payments, authentication, and automated ERP data synchronization.
  • Deployed and maintained a secure Linux-based server environment, enabling internal file sharing and access control for 100+ employees.
  • Maintained network infrastructure and resolved 680+ technical support tickets (4.91/5 satisfaction rate).

B2B Projects

Built production-grade web platforms for corporate clients, covering database design, backend development, and deployment.

Education

Bachelor of Science in Computer Engineering

Universidade Tecnológica Federal do Paraná (UTFPR) – Expected Graduation: 2026