Work
Case studies
Systems I designed and built: from backend and payment integrations to AI agents and cloud architecture. Each entry includes a detailed case study.
AI Agents
AI Agents with ADK
Intelligent agents integrated into the GCP ecosystem via MCP Toolbox
PythonADKVertex AICloud Run
Case study Payment Systems
Payment Integration Platform
Stripe event-driven: checkout, subscriptions, and lifecycle management
PythonStripeWebhooksPostgreSQL
Case study Payment Systems
GPOS Payment System
.NET/C# backend for PIX and cards with mTLS authentication
.NETC#PIXmTLS
Case study Backend Engineering
Transactional Email Microservice
Queue-based decoupled microservice for email delivery
PythonRabbitMQSMTPDocker
Case study Computer Vision
Computer Vision Analytics
People counting and dwell time for operational metrics
PythonOpenCVYOLOPostgreSQL
Case study Backend Engineering
Service Licensing System
Token activation, permission management, and admin CRUDs
C#.NETPostgreSQLJWT
Case study Data Engineering
Budget Diarization Platform
Monthly commercial budget split into daily store-category rows with audited calibration
TypeScriptTanStack StartReactBun
Case study AI Agents
AI Delivery Workspace
Methodology-driven project workspace with AI-assisted document generation
TypeScriptReactViteTipTap
Case study