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
๐ 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.
๐ 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.
๐ 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.
๐ก 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

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

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. Whatโs Next?
Get In Touch
Iโm currently looking for any new opportunities, my inbox is always open. Whether you want to hire me or just want to say hi, Iโll get back to you in the less minimum time possible!
