Senior Backend Developer Portfolio - 10+ Years Experience | Expert Node.js, Python & Cloud Architecture

About

Senior backend developer with 10+ years building scalable systems

I've architected distributed systems handling millions of requests, designed RESTful APIs, and optimized database performance for global applications.

Expertise

Python, Node.js, Go, PostgreSQL, Redis, Docker, Kubernetes

Focus

High-performance APIs, microservices, cloud architecture

Passion

Clean code, system optimization, solving complex problems

Skills

Technologies I've mastered over 10+ years

Backend Technologies

Python Expert

Node.js Expert

Go Advanced

Databases & Cloud

PostgreSQL

Redis

MongoDB

AWS

Docker

Kubernetes

Experience

A decade of building scalable systems

2021 - Present

Lead Backend Engineer

TechCorp Inc.

• Architected microservices handling 10M+ daily requests
• Reduced API latency by 40% through optimization
• Led team of 5 backend developers

2018 - 2021

Senior Backend Developer

StartupXYZ

• Built RESTful APIs for SaaS platform
• Implemented real-time data processing pipeline
• Scaled database from 1M to 50M records

2014 - 2018

Backend Developer

Digital Solutions Ltd

• Developed e-commerce payment systems
• Optimized database queries for performance
• Integrated third-party APIs and services

Projects

Featured backend systems I've built

Payment API Gateway

Built PCI-compliant payment processing API handling $2M+ monthly transactions

Python PostgreSQL Redis

Real-time Analytics Engine

Processing 1M+ events daily for SaaS platform analytics

Node.js MongoDB Kafka

Microservices Architecture

Designed fault-tolerant system serving 5M+ users globally

Go Docker Kubernetes

API Documentation System

Auto-generated documentation for 100+ endpoints

FastAPI OpenAPI

Testimonials

What clients say about my work

Sarah Chen

CTO, TechCorp

"Built our payment system handling millions in transactions. Flawless execution."

Marcus Rodriguez

Product Lead, StartupXYZ

"Transformed our API performance. 40% faster response times overnight."

Lisa Park

CEO, DataFlow Inc.

"Scalable architecture handled 10x growth without performance issues."

Contact

Ready to build something amazing together?

Let's Discuss Your Project

I help businesses build scalable backend systems that handle millions of users.

Email

contact@portfolio.com

linkedin.com/in/portfolio

GitHub

github.com/portfolio