We don't talk about technologies. We talk about problems solved and metrics improved.
Startup with 3k active users whose monolithic architecture could not sustain projected growth. Response times > 8 seconds at peak hours.
Progressive migration to microservices with FastAPI. Cache implementation with Redis and separation of the async jobs layer with Celery.
Result
Response time reduced from 8s to 280ms. Capacity to support 50k users without additional infrastructure changes.
Stack
Legacy PHP platform with load times > 4 seconds and architecture that did not allow marketplace integrations.
Complete backend redesign in Django + Next.js for the frontend. Unified API for web, mobile app and external marketplaces.
Result
Core Web Vitals in the green. Integration with 4 marketplaces. Load time < 1.2s. 35% increase in conversion.
Stack
Fintech startup that needed to process recurring payments with high reliability, regulatory compliance and automatic reconciliation.
Event-driven architecture with Django + Celery. Integration with payment gateways, retry system and reconciliation dashboard.
Result
99.97% uptime. Processing $2M+ monthly. Client onboarding time reduced from 2 weeks to 2 days.
Stack
Retail company with data scattered across 6 different systems. No unified visibility of sales, inventory and customer behavior.
Data pipeline with Python + Airflow, data warehouse in BigQuery and interactive dashboard with React + recharts.
Result
Data access time reduced from days to minutes. 12 key metrics unified. 100% adoption by executive team in the first week.
Stack
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