Ubani Obiajulum Emmanuel

@ubaniemmanuel

Lagos, NigeriaJoined March 2026

About

I'm a mid-level Cloud & DevOps Engineer based in Nigeria, building in public. I document every piece of infrastructure I ship — the architecture, the code, the mistakes, and the lessons. If you're a hiring manager or engineering lead looking for someone who builds first and talks second, this blog is my portfolio.

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Ubani Obiajulum Emmanuel's blogs

Emmanuel Ubaniemmanuelubani.hashnode.dev12 posts

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UOUbani Obiajulum Emmanuelemmanuelubani.hashnode.devJun 6 · 11 min read

I Built an Automated CIS Compliance Pipeline That Saved a Company From a $3.2 Million Contract Loss — Here Is How It Works

OpenSCAP, Ansible auto-remediation, Python compliance gate, and CloudWatch trending — from 47% to 91% CIS Level 2 in one pipeline run The Audit That Cost $3.2 Million In 2022, a fintech startup in Be

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UOUbani Obiajulum Emmanuelemmanuelubani.hashnode.devMay 24 · 14 min read

I Built a Zero-Trust Kubernetes Platform Where Every Connection Is Encrypted, Every Identity Verified, and Every Threat Detected in Real Time — Here Is the Full Architecture

The Lateral Movement Attack That Cost $4.3 Million In April 2023, a financial services company in London received a phone call from their bank. Unusual transactions had been detected on their payments

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UOUbani Obiajulum Emmanuelemmanuelubani.hashnode.devMay 1 · 15 min read

I Built the Supply Chain Security Platform That Would Have Detected the SolarWinds Attack — Here Is Exactly How It Works

The Attack That Changed How the World Thinks About Software In December 2020, security researchers at FireEye discovered something that made the entire industry stop and reconsider everything they tho

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UOUbani Obiajulum Emmanuelemmanuelubani.hashnode.devApr 26 · 14 min read

I Built a 5-Node HashiCorp Vault HA Cluster on AWS EKS That Eliminated Every Static Secret From Our Kubernetes Workloads

The Breach That Started With a Hardcoded Secret In March 2020, an engineer at a US healthcare company pushed a configuration file to a private GitHub repository. The file contained an AWS access key.

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UOUbani Obiajulum Emmanuelemmanuelubani.hashnode.devApr 16 · 14 min read

I Built an Enterprise DevSecOps Pipeline That Would Have Prevented a $4.2 Million Regulatory Fine — Here Is Exactly How It Works

The Breach That Cost $4.2 Million In September 2021, a fintech company in Singapore deployed a Docker image to production. The image contained a critical vulnerability in its base OS layer. The vulner

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Ubani Obiajulum Emmanuel

About

Available for

Ubani Obiajulum Emmanuel's blogs

Recently published

I Built an Automated CIS Compliance Pipeline That Saved a Company From a $3.2 Million Contract Loss — Here Is How It Works

I Built a Zero-Trust Kubernetes Platform Where Every Connection Is Encrypted, Every Identity Verified, and Every Threat Detected in Real Time — Here Is the Full Architecture

I Built the Supply Chain Security Platform That Would Have Detected the SolarWinds Attack — Here Is Exactly How It Works

I Built a 5-Node HashiCorp Vault HA Cluster on AWS EKS That Eliminated Every Static Secret From Our Kubernetes Workloads

I Built an Enterprise DevSecOps Pipeline That Would Have Prevented a $4.2 Million Regulatory Fine — Here Is Exactly How It Works

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Ubani Obiajulum Emmanuel

About

Available for

Ubani Obiajulum Emmanuel's blogs

Recently published

I Built an Automated CIS Compliance Pipeline That Saved a Company From a $3.2 Million Contract Loss — Here Is How It Works

I Built a Zero-Trust Kubernetes Platform Where Every Connection Is Encrypted, Every Identity Verified, and Every Threat Detected in Real Time — Here Is the Full Architecture

I Built the Supply Chain Security Platform That Would Have Detected the SolarWinds Attack — Here Is Exactly How It Works

I Built a 5-Node HashiCorp Vault HA Cluster on AWS EKS That Eliminated Every Static Secret From Our Kubernetes Workloads

I Built an Enterprise DevSecOps Pipeline That Would Have Prevented a $4.2 Million Regulatory Fine — Here Is Exactly How It Works