Creating a platform with microservices from scratch for video streaming and processing services, using Go and React:

● Onboarding application, integrated with Zuora and Auth0

● User management and permission application (like AWS IAM)

● Billing Service (Zuora + ClickHouse)

● Cloud Storage management (AWS, GCP)

1028 pizzerias in 18 countries. ~ 300 engineers.

● Collaborated with a team of 20 engineers in redesigned infrastructure to pass the PCI DSS (Payment Card Industry Data Security Standard)

● Developed a new CLI tool (Go) that reduced resource provisioning speed for new infrastructure and microservices from days to hours.

● Developed new CICD pipelines, Docker images, and Go shared libraries, improving code reuse to 40%, and implementing common design standards.

● Created API gateway (Go proxy) with schema validation for 40 microservices

● Updated the whole Terraform infrastructure (mv from HCL to Jsonnet).

Cloud database. Semantic layer. ~ 50 Engineers.

● Moved the service to the enterprise segment, enabling rapid deployment of the entire platform and infrastructure in independent clouds (AWS, GCP) on demand (Node, Terraform).

● Reduced AWS costs by 20% through the creation of metrics, alerts, and cost analytics services (go, k8s, terraform).

● Designed real-time infrastructure configuration with Metacontroller and Rest API (NodeJS and Vue.js).

● Implemented dashboards with Datadog and Grafana, improved incident detection.

● Designed an internal billing service to reduce commission and save 5% on daily income (go).

● Split the PHP monolith into Go microservices, removed vendor development lock, increased delivery speed (from hours to minutes), and SLO from 99.90 to 99.95

● Designed and implemented a new data processing (for analytics) microservice using Golang.

B2B Price analytics platform.

● Architected and developed a price analytics platform from scratch, capable of analyzing over 500 million unique prices daily to optimize sales by 20% by delivering the best daily prices.