Tensor Marketplace
Django REST API marketplace with Stripe integration and secure file delivery
BACKEND / PLATFORM ENGINEER
SCALABLE BACKEND SYSTEMS
Backend engineer specializing in production-grade APIs, scalable architecture, and high-performance systems. I build reliable backend infrastructure using Python, Django, FastAPI, and Go—designed for scale, performance, and global remote teams.
Clean Code
Scalable Backend
High Performance
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WHAT I DO
Backend Engineering Services
Production-ready backend systems for remote-first companies
Backend Architecture
Designing scalable backend systems with Django, FastAPI, and Go. RESTful and GraphQL APIs built for performance, maintainability, and scale.
Database & Performance
PostgreSQL optimization, Redis caching strategies, and query performance tuning for systems handling millions of records.
Production Systems
CI/CD pipelines, Docker containerization, and deployment strategies. Building backend infrastructure that runs reliably in production.
Full-Stack Delivery
When needed, I deliver complete solutions with React, Next.js, or Vue.js frontends—always with a backend-first approach.
MY PORTFOLIO
Featured Backend Projects
Production systems built with backend-first architecture
Arizona Sunshine Portal
Backend system managing 12.6M campaign finance records with Django
Rozipeda Procurement
Professional sourcing and procurement company website
KenyaEstate
Conversion-focused real estate platform for the Kenyan market
Amber Quill
E-commerce
Age-restricted liquor platform with dual payment processing
GoVerde Errands Marketplace
FastAPI backend with WebSocket chat, escrow payments, and role-based access
ABOUT ME
Let's Work Together
Backend / Platform Engineer
I'm Amos Mwangi, a backend engineer who builds scalable, production-ready systems that power real-world applications. I specialize in backend architecture, API design, and performance optimization—with responsibility for systems handling millions of records and thousands of daily requests.
My work centers on Python backend development (Django, FastAPI), Go for high-performance services, and architecting robust, maintainable systems. I design RESTful and GraphQL APIs, optimize database queries, implement caching strategies, and ensure production systems run reliably at scale. My frontend experience with React, Next.js, and Vue.js complements my backend work, enabling me to deliver complete, production-ready solutions.
Backend & Platform
- Python (Django, FastAPI)
- Go (Golang)
- REST & GraphQL APIs
- PostgreSQL & MongoDB
- Redis & Caching
- Docker & Production Deploy
Full-Stack Delivery
- React.js & Next.js
- Vue.js & Nuxt.js
- TypeScript
- API Integration
- Responsive UI
- Modern CSS/Tailwind
Backend Architecture
Frontend Development
Database Design
MY PROCESS
How I Build Software
A systematic approach to delivering quality solutions
01
Requirements & Planning
Understanding technical requirements, defining architecture, and planning development roadmap
02
Development & Testing
Building features with clean code, comprehensive testing, and continuous integration
03
Code Review & Optimization
Ensuring code quality, performance optimization, and security best practices
04
Deployment & Monitoring
Deploying to production with CI/CD pipelines and monitoring systems
TESTIMONIALS
Client Feedback
What clients say about working with me
GET IN TOUCH
Let's Build Backend Systems Together
Need a scalable backend API, production-grade infrastructure, or performance optimization? I architect and build backend systems that power real-world applications—ready for global remote collaboration.