Hi, I’m Sean Njela.

DevOps Engineer.

I build and automate scalable infrastructure with cloud-native tools, CI/CD pipelines, and a security-first mindset. Focused, efficient, and always improving system reliability.

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Projects

Here you can see my last projects

Screenshot showing Argo CD managing Kubernetes deployments with Helm and Terraform image
Devops

July 27, 2025

Argo CD Production Demo

This project demonstrates continuous deployment practices using Argo CD to automate the deployment and management of Kubernetes applications. It integrates Docker, Helm, and Terraform to provision and maintain infrastructure consistently and efficiently. GitHub Actions are utilized to streamline CI/CD workflows, enhancing reliability and developer productivity. Designed for DevOps teams and learners, this demo highlights best practices for scalable and automated Kubernetes deployments.

Argo CD
Kubernetes
Helm
+2 more
Architecture diagram of a microservices-based Zero Trust security model image
Devops

July 27, 2025

Zero Trust Architecture in Microservices

This project implements a Zero Trust Architecture (ZTA) within a microservices ecosystem to enhance security and trust boundaries across distributed systems. Built with Kubernetes, Docker, Helm, and Terraform, it automates the deployment and scaling of secure service meshes and infrastructure. The project showcases infrastructure-as-code practices, secure service-to-service communication, and policy enforcement using modern DevOps tooling. It’s a practical demonstration of ZTA concepts applied in real-world microservices environments, ideal for high-assurance system design.

Kubernetes
Docker
Helm
+2 more
Screenshot of DRF Template project showing layered architecture and API docs image
Backend

July 31, 2025

DRF Template

A fully customizable Django Rest Framework starter kit designed with an N-Tier architecture in mind. It promotes clean code separation by organising logic across services, repositories, and serializers, making it ideal for building scalable and maintainable APIs.

Django
Amazon Web Services
Docker
Java and Docker official logos image
Devops

August 01, 2025

CICD Multi-Stage Docker Builds

A full-featured CI/CD pipeline for a Java web application using Gradle, with an emphasis on repeatability, test coverage, and secure delivery. It leverages multi-stage Docker builds to optimise image size and security, while incorporating unit, integration, API, and BDD-style UI tests using JUnit, Pytest, and Behave.

GitLab CI/CD
Jenkins
Spring Boot
End-to-end Kubernetes deployment template from local to cloud image
Devops

July 27, 2025

Universal K8s Template

The Universal K8s Template provides a complete Kubernetes deployment blueprint, from local k3s clusters to GKE Autopilot production setups. It integrates Terraform, Helmfile, Argo CD, GitHub Actions, Devbox, and Mise to automate infrastructure provisioning, CI/CD, and GitOps workflows. Designed for solo developers and teams alike, it includes fully configured dev/staging/prod pipelines, service mesh with Linkerd, and built-in DevSecOps and observability tooling. This project delivers a scalable, cloud-native template for rapid application delivery across environments.

Kubernetes
Terraform
Helm
+1 more

Blog

Articles, thoughts, and ideas written on Notion

demo image
Fullstack

July 27, 2025

demo

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Azure DevOps
Microsoft Azure
Firebase