Jean Eric TUYISHIMIRE

Introduction

About Me

Building Resilient Systems

With over 4 years of experience in software development and DevOps, I've architected and deployed cloud-native applications serving thousands of users. My expertise spans the full development lifecycle—from writing clean, maintainable code to deploying scalable infrastructure.

I'm passionate about automation, infrastructure as code, and building systems that developers love to work with. Whether it's setting up CI/CD pipelines, optimizing cloud costs, or debugging production issues at 3 AM, I thrive in challenging technical environments.

Currently exploring: Kubernetes operators, service mesh architectures, and eBPF-based observability.

AWS Certified Cloud Practitioner – Validated expertise in AWS cloud fundamentals, services, and best practices.

4+ Years Experience

20+ Projects Deployed

99.9% Uptime Maintained

50+ Automations Created

Technologies

Tech Stack

Tools and technologies I use to build production systems.

DevOps & Cloud Infrastructure

AWS

Docker

Kubernetes

Terraform

Ansible

Jenkins

GitLab CI

GitHub Actions

Prometheus

Grafana

New Relic

Datadog

ELK Stack

Nginx

Backend Development

Node.js

Python

Express

Django

FastAPI

Spring Boot

PostgreSQL

MongoDB

Redis

RabbitMQ

GraphQL

REST APIs

Frontend Development

React

Vue.js

Angular

TypeScript

JavaScript

HTML5

CSS3

Webpack

Tools & Practices

Git

Linux

Bash

Agile/Scrum

TDD

CI/CD

IaC

Monitoring

Career

Professional Experience

DevOps Engineer

Rwanda Social Security Board (RSSB)

Dec 2024 - Present

Leading DevOps initiatives for RSSB's critical social security systems used nationwide by millions of Rwandans. Ensuring 99.99% uptime for mission-critical infrastructure through robust automation and proactive monitoring.

Maintaining 99.99% uptime for nationwide social security systems serving millions of citizens
Architected and deployed cloud infrastructure using Infrastructure as Code (Terraform)
Implemented CI/CD pipelines with GitHub Actions for automated deployments
Established comprehensive monitoring and alerting systems for proactive incident management

GitHub Actions Linux Server Docker Kubernetes Terraform

Software Engineer

Hexakomb

Dec 2022 - Dec 2024

Actively contributed to successfully migrating from a monolithic architecture to a scalable microservices architecture, enhancing system efficiency and flexibility.

Led microservices migration improving system scalability by 300%
Built RESTful APIs using FastAPI and SQLModel serving 10K+ requests/day
Implemented Redis caching reducing database load by 60%
Deployed containerized applications using Docker and Kubernetes

FastAPI SQLModel Python Redis Docker Kubernetes

Full Stack Software Engineer

Hexakomb (Apprenticeship)

Sep 2022 - Dec 2022

Completed intensive apprenticeship program building full-stack applications with modern frameworks and best practices.

Developed responsive web applications using Vue.js and FastAPI
Implemented authentication and authorization systems
Collaborated on code reviews and pair programming sessions
Learned microservices architecture and design patterns

FastAPI Vue.js PostgreSQL Git

Full Stack Software Engineer Trainee

Andela

Jan 2022 - Nov 2022

Completed intensive software development training program focusing on full-stack development, clean code practices, and modern development workflows.

Built 10+ production-ready applications using React, Node.js, and Python
Implemented CI/CD pipelines reducing deployment time by 60%
Collaborated with distributed teams using Agile methodologies
Mentored junior developers on best practices and code review

Node.js React PostgreSQL Docker AWS

IT Support Specialist

National Bank of Rwanda

Feb 2022 - June 2022

Provided technical infrastructure support for critical banking systems, ensuring 99.9% uptime for mission-critical applications.

Maintained network security and monitoring systems for banking infrastructure
Automated routine maintenance tasks saving 15 hours weekly
Collaborated with development teams on system integration projects
Documented system architecture and created runbooks for incident response

Linux Networking Security Monitoring

Data Analyst

Eritcus Solutions

Sep 2019 - Jan 2022

Analyzed complex datasets and built automated data pipelines to drive business intelligence and decision-making.

Built ETL pipelines processing 1M+ records daily
Created interactive dashboards used by C-level executives
Developed Python scripts for data validation and quality checks
Optimized database queries improving performance by 40%

Python SQL ETL Data Viz

Software Developer

Nexin Ltd

Aug 2017 - Dec 2020

Developed and maintained web applications for various clients, specializing in building REST APIs and database solutions for educational platforms.

Built REST API for e-portal, an online learning platform serving thousands of students
Designed and implemented relational database schemas for educational content management
Developed 15+ client applications using modern web frameworks
Conducted code reviews and established coding standards for the development team

Django REST Framework Python Relational Databases MySQL REST APIs

Work

Featured Projects

Selected projects demonstrating my technical capabilities and problem-solving approach.

Rwanda Phone Format Library

Python library for standardizing Rwandan phone number formats. Accepts multiple input formats and normalizes them to the standard +250 format with comprehensive test coverage.

39+ Commits

MIT Licensed

Python Poetry GitHub Actions Testing

Portfolio Backend API

RESTful API powering portfolio features including contact forms, blog management, and user authentication. Built with Node.js and Express.

99.5% Uptime

50ms Avg Response

Node.js Express MongoDB Heroku

Phantom E-Commerce Platform

Modern e-commerce web application with real-time features, shopping cart functionality, and secure payment integration. Built with React for optimal UX.

500+ Products

Real-time Updates

React Node.js Socket.io Stripe

Farmvest Agricultural Platform

Backend API for agricultural investment platform connecting farmers with investors. Features secure transactions and real-time farm monitoring.

1000+ Users

Secure Payments

Python Django PostgreSQL REST API

Power FM Radio Platform

Radio station streaming and podcast platform with live broadcast capabilities, show scheduling, and content management system.

5K+ Listeners

24/7 Streaming

Vue.js Laravel MySQL WebRTC

KREL Enterprise Platform

Enterprise resource planning (ERP) solution for business management including inventory, CRM, and reporting modules with role-based access.

200+ Users

10+ Modules

Angular Spring Boot PostgreSQL Redis

Professional Portfolio Website

Modern, responsive portfolio showcasing software engineering and DevOps projects. Features terminal-style UI, dark theme, and dynamic content rendering.

100% Lighthouse

A+ Performance

HTML5 CSS3 JavaScript GitHub Pages