Karim Zouine | Hi, I’m Karim.

I design and build .NET and cloud systems for a living. In my own time I write open source tools that people actually end up using.

About Me

Karim Zouine

Hi, I’m Karim Zouine. I’ve been writing code since I was a kid, and I never really stopped.

Role Solution Architect & Technical Lead
Passion Open Source
Open For Selected Projects

Professionally I work in .NET and AWS: system design, architecture and quality standards, and a good deal of algorithm and performance optimization, alongside my role as technical lead.

Everything below is built in my own time. None of it is client work, these are tools I needed myself and thought others might get something out of too. ImgCompress started exactly that way, and plenty of people run it today.

“Do good, and good comes back to you” is my motto. I’m always happy to talk about an interesting project, or about building software well.

Tech Stack

.NET

Full-Stack .NET Engineering

Building maintainable enterprise applications with modern patterns and distributed services.

  • C#
  • ASP.NET Core
  • EF Core
  • SQL Server
  • Microservices
SQL Databases

Database Design & NoSQL

Shaping solid data models and tuning queries for systems that see heavy load.

  • MS SQL Server
  • PostgreSQL
  • DynamoDB
  • Performance Tuning
Amazon AWS

Cloud Architecture (AWS)

Designing cloud environments that stay available without becoming expensive, with a cloud-native approach.

  • Lambda
  • ECS Fargate
  • EC2
  • IAM
  • S3
Docker

Containerization & Kubernetes

Smoothing the path from development to production, with an eye on security, scale and performance.

  • Docker
  • Kubernetes
  • Registry Management
  • BuildX
Node.js

Node.js & Web Tech

Building real-time backend services and APIs that hold up under real traffic.

  • TypeScript
  • React
  • NextJS
  • Playwright
  • WebSockets
Python

Python Automation

Writing automation frameworks and data pipelines, with a lot of care for clean code and tests.

  • FastAPI
  • Pydantic
  • Pandas
  • Pytest
Messaging & Event Streams

Messaging & Event-Driven Systems

Building decoupled, resilient systems around asynchronous messaging and event streams.

  • RabbitMQ
  • Amazon SQS/SNS
  • Kafka
  • CQRS
DevOps & Infrastructure as Code

Enterprise DevOps & IaC

Automating deployments and infrastructure for setups where downtime is not an option.

  • AWS CDK
  • GitHub Actions
GitHub

Open Source & Community

Giving back to the community through projects, clean engineering standards and good documentation.

  • Maintainability
  • DX
  • Automated Documentation
  • Community Management

Side Projects

Projects I build in my own time. Each one grew out of a requirement I had myself, and it’s a nice bonus when it turns out useful to others as well.

Fetching projects from GitHub...

Get in Touch

If you’re working on something interesting, or simply want to exchange ideas about architecture and technology, feel free to get in touch.