Vivian Chiamaka Okose

@vivianokose

DevOps Engineer | AWS • Terraform • Claude Code • Agentic AI | viviancloud.site

Joined July 2022

About

I build production-grade cloud infrastructure and agentic AI pipelines on AWS. With a background in biochemistry and biotechnology, I bring scientific precision to the systems I design. Every pipeline I build has deliberate safety guardrails -- minimal permissions, read-only auditors, plan-before-apply gates. Safety is architecture, not discipline. Currently writing a 7-part series documenting the Agentic Infrastructure project: a complete Claude Code pipeline from environment setup to live AWS deployment, SubAgents, MCP integration, and safety hooks. Portfolio: viviancloud.site

Available for

Remote work, Freelance work

Vivian Chiamaka Okose's blogs

How I Deployed a Production-Ready Three-Tier Web App on AWSvivianokose.hashnode.dev13 posts

Building a Three-Tier Bookstore App on AWS from Scratch: Infrastructure, Deployment, and Every Debug Along the Waycrystal-vivian.hashnode.dev3 posts

Building a Complete AWS Network from Scratch (And What I Learned That Surprised Me)vivian-okose.hashnode.dev2 posts

I Provisioned My First Azure VM with Terraformvivianchiamaka.hashnode.dev1 post

About

I build production-grade cloud infrastructure and agentic AI pipelines on AWS. With a background in biochemistry and biotechnology, I bring scientific precision to the systems I design. Every pipeline I build has deliberate safety guardrails -- minimal permissions, read-only auditors, plan-before-apply gates. Safety is architecture, not discipline. Currently writing a 7-part series documenting the Agentic Infrastructure project: a complete Claude Code pipeline from environment setup to live AWS deployment, SubAgents, MCP integration, and safety hooks. Portfolio: viviancloud.site

Available for

Remote work, Freelance work

Vivian Chiamaka Okose's blogs

How I Deployed a Production-Ready Three-Tier Web App on AWSvivianokose.hashnode.dev13 posts

Building a Three-Tier Bookstore App on AWS from Scratch: Infrastructure, Deployment, and Every Debug Along the Waycrystal-vivian.hashnode.dev3 posts

Building a Complete AWS Network from Scratch (And What I Learned That Surprised Me)vivian-okose.hashnode.dev2 posts

I Provisioned My First Azure VM with Terraformvivianchiamaka.hashnode.dev1 post

Articles Comments

Recently published

VCVivian Chiamaka Okosevivianokose.hashnode.devJun 11 · 5 min read

Deploying 8 Microservices to AWS EKS with Docker Compose: A Step-by-Step Walkthrough

Introduction Spring PetClinic Microservices is a production-grade distributed application used by the Spring community to demonstrate microservices architecture. It consists of 8 independent services,

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VCVivian Chiamaka Okosevivianokose.hashnode.devJun 10 · 5 min read

How 11 Engineers Deployed a Production-Grade Pet Clinic to AWS EKS

When the PetCare Clinic CloudOps team decided to deploy Spring PetClinic Microservices to production, nobody handed us a guide. We were simulating a real engineering company. Running actual sprints. R

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VCVivian Chiamaka Okosevivianokose.hashnode.devJun 6 · 9 min read

From Code to Cloud: Deploying 11 Microservices to AWS EKS with Terraform and ArgoCD

The CI pipeline was passing. Images were in ECR. Everything looked ready. Then I ran kubectl get pods and saw this: emailservice 0/1 CrashLoopBackOff 12 (3m ago) 24m recommendationservi

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VCVivian Chiamaka Okosevivianokose.hashnode.devJun 5 · 7 min read

Why My CI Pipeline Kept Failing (And What I Had to Redesign to Fix It)

error: failed to push some refs to 'https://github.com/...' Updates were rejected because the remote contains work that you do not have locally. The first time it happened I thought it was a simple g

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VCVivian Chiamaka Okosevivianokose.hashnode.devMay 28 · 4 min read

I Deployed 11 Microservices Locally With kind, Then Broke One on Purpose subtitle: A real walkthrough with fault injection, live traffic surprises, and five lessons I did not expect.

Online Boutique running locally on kind. 11 services. 5 languages. One command. I have been training as a DevOps engineer for a while now — mostly reading and watching. This was the first time I actua

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Vivian Chiamaka Okose

About

Available for

Vivian Chiamaka Okose's blogs

Recently published

Deploying 8 Microservices to AWS EKS with Docker Compose: A Step-by-Step Walkthrough

How 11 Engineers Deployed a Production-Grade Pet Clinic to AWS EKS

From Code to Cloud: Deploying 11 Microservices to AWS EKS with Terraform and ArgoCD

Why My CI Pipeline Kept Failing (And What I Had to Redesign to Fix It)

I Deployed 11 Microservices Locally With kind, Then Broke One on Purpose subtitle: A real walkthrough with fault injection, live traffic surprises, and five lessons I did not expect.

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Vivian Chiamaka Okose

About

Available for

Vivian Chiamaka Okose's blogs

Recently published

Deploying 8 Microservices to AWS EKS with Docker Compose: A Step-by-Step Walkthrough

How 11 Engineers Deployed a Production-Grade Pet Clinic to AWS EKS

From Code to Cloud: Deploying 11 Microservices to AWS EKS with Terraform and ArgoCD

Why My CI Pipeline Kept Failing (And What I Had to Redesign to Fix It)

I Deployed 11 Microservices Locally With kind, Then Broke One on Purpose subtitle: A real walkthrough with fault injection, live traffic surprises, and five lessons I did not expect.