Hi, my name is

Isaiah Mwinga.I build resilient backends & automation.

I am a Backend & Automation Engineer with 4+ years of experience building scalable, high-throughput services and the automated testing and CI/CD pipelines that keep them reliable in production.

01.About Me

๐Ÿ‘‹ Hello, I am Isaiah Mwinga, a Backend & Automation Engineer with 4+ years of experience building and scaling the systems that power production applications. I focus on creating resilient, high-throughput services and the automated pipelines that keep them reliable.

๐Ÿš€ I architect backend platforms end to end designing distributed microservices, event-driven architectures with Kafka and SQS, and cloud-native infrastructure on AWS while building the automated test and CI/CD pipelines that let teams ship with confidence.

๐ŸŒ My work spans the full lifecycle of a service: performant APIs, thoughtful data modeling and query optimization, observability, and load and performance testing to eliminate bottlenecks before they reach users. I care deeply about systems that are not just fast, but scalable, maintainable, and well-tested.

๐Ÿ’ก I believe the best systems are built through clear communication and strong engineering culture. I enjoy collaborating on technical decisions and partnering closely with cross-functional teams to turn complex requirements into robust, production-ready solutions.

Here are a few technologies I have been working with recently:

  • Python
  • Django Rest Framework
  • FastAPI
  • Flask
  • Golang
  • AWS
  • Docker
  • Selenium
  • Kafka
  • PostgreSQL & MySQL
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02.Where I have Worked

  • Oseas, Guatemala
  • Eclectics International
  • MarketForce360
  • Dowell's Living Lab

Backend Developer@Oseas Guatemala

January 2025 - present

  • Designed and maintained microservices architecture using FastAPI, SQLAlchemy and Gino improving service reliability and scalability.
  • Integrated Kafka for real-time event streaming and asynchronous communication among the microservices.
  • Developed serverless compute workflows using AWS Lambda, reducing infrastructure cost and improving execution efficiency.
  • Built secure and optimized file storage and retrieval solutions using AWS S3.
  • Integrated Amazon SQS to support an event-driven architecture, enabling decoupled microservices and improving system reliability and throughput.

03.Some Things I have Built

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Featured Project

Oseas ERP System APIs

An ERP system built to serve LATAM countries with 5 different Microservices built using Python FastAPI and then deployed on AWS and running on an EC2 instance.This is just thePayroll service part.

  • Python
  • FastAPI
  • PostgreSQL
  • SQLAlchemy&Gino
  • AWS EC2 Deployment
  • Docker
  • Kafka
  • Redis
  • Celery

04. Whatโ€™s Next?

Get In Touch

Iโ€™m currently looking for any new opportunities, my inbox is always open. Whether you want to hire me or just want to say hi, Iโ€™ll get back to you in the less minimum time possible!