ktasie (Kelechukwu Tasie) · GitHub
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Achievements

Achievement: QuickdrawAchievement: Pull Sharkx2Achievement: YOLOAchievement: Public SponsorAchievement: Arctic Code Vault Contributor

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@zero-to-mastery

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ktasie/README.md

Kelechukwu Tasie

Software & Cloud Engineer focused on backend systems, infrastructure automation, and scalable platform engineering.

I build reliable backend tools and cloud infrastructure that simplify operations, reduce manual engineering effort, and improve system reliability.

Core Stack

Languages: JavaScript, Node.js, Bash, PHP
Backend: Express.js, REST APIs, JWT, Microservices
Infrastructure: Linux, Docker, NGINX, SSL/TLS, CI/CD
Cloud: AWS, DigitalOcean, HCS
Databases: MongoDB, MySQL, Redis
Tools: Git, GitHub, Postman, PowerShell

Featured Projects

NGINX Automation Toolkit

CLI tool that migrated 250+ domains from a legacy Citrix SSL termination platform to NGINX — with automated Let's Encrypt certificate issuance.

Tech: Node.js, Bash, Linux, NGINX, Let’s Encrypt

SSL Toolkit

A production-deployed web application that wraps complex OpenSSL workflows behind a browser interface. Built for system administrators and infrastructure engineers who need to generate, validate, and convert certificates without manually constructing OpenSSL commands.

Tech: Node.js, Express, Linux, SSL/TLS

Microservice Platform

Backend microservices platform designed around independently deployable services, RESTful APIs, and containerized infrastructure to support scalable and maintainable system architecture.

Tech: Node.js, Express.js, Docker, Azure Container Apps, Azure Cosmos DB, Azure Blob Storage, JWT (RS256), Azure DevOps

MikroTik Auth Prototype

Built a Node.js prototype integrating with MikroTik RouterOS APIs to extend default captive portal functionality with custom user registration and email verification workflows. Implemented as an internal lab prototype; full RouterOS credential synchronisation ongoing.

Tech: Node.js, Express.js, MongoDB, RouterOS API, SMTP, Pug

Enterprise Email Hosting Infrastructure

Deployed and operate a scalable Modoboa email platform on IaaS infrastructure, currently serving 40,000+ active mailboxes. Work is proprietary and not publicly available.

Tech: Linux, Postfix, Dovecot, Modoboa, NGINX, SSL/TLS

Currently Exploring

  • TypeScript
  • Distributed systems
  • Cloud-native architecture

Engineering Philosophy

I enjoy simplifying complex systems, automating repetitive workflows, and building infrastructure that helps teams move faster without sacrificing reliability.

Pinned Loading

  1. nginx-automation nginx-automation Public

    CLI tool that migrated 250+ domains from a legacy Citrix SSL termination platform to NGINX — with automated Let's Encrypt certificate issuance.

    JavaScript 1

  2. ssl-toolkit ssl-toolkit Public

    Web-based SSL automation toolkit for CSR generation, certificate conversion, and private-key validation

    JavaScript 1

  3. microservices-platform microservices-platform Public

    Backend microservices platform designed around independently deployable services, RESTful APIs, and containerized infrastructure to support scalable and maintainable system architecture.

    JavaScript 1