Backend Engineer | Platform Engineer

I build scalable backend systems that handle millions of records and thousands of daily requests. Specialized in Python and Go, with a focus on production-grade APIs, database optimization, and reliable infrastructure.

• Design and build RESTful and GraphQL APIs for production environments
• Architect backend systems optimized for scale and performance
• Implement database optimization, caching strategies, and query tuning
• Build CI/CD pipelines and containerized deployment workflows
• Deliver full-stack solutions when end-to-end ownership is needed

Backend: Python, Go, Django, FastAPI, Django REST Framework

Databases: PostgreSQL, MongoDB, Redis

Infrastructure: Docker, CI/CD, Linux, Nginx

Frontend: React, Next.js, Vue.js, TypeScript

• Architected a Django backend managing 12.6M campaign finance records
• Built real-time marketplace systems with WebSocket chat and escrow payments
• Achieved 60% performance improvement through Go microservices migration
• Production systems handling thousands of daily API requests

Arizona Sunshine Portal - Django backend for large-scale campaign finance data (12.6M records)

GoVerde Marketplace - FastAPI backend with WebSocket, escrow payments, role-based access

Tensor Marketplace - Django REST API with Stripe integration and secure file delivery

• Email: emosmwangi@gmail.com
• Portfolio: emos21.github.io/Emos
• LinkedIn: linkedin.com/in/amos-mwangi-backend-developer

Available for remote backend engineering roles globally.