DevOps consultant
I design, ship, and run AWS infrastructure.
The account, the pipeline, and what happens after it ships.
Harun R. Rayhan
Available for remote consulting.
Enterprise ERP platform
Migrating a 15-Year-Old ERP Off Zend Framework 1
Noticeably faster for day-to-day operations
Read the case studyCompanies
Places the work has shipped.
Product teams and larger companies. The client name stays off the case studies.
What the work usually is
The app, the AWS account, and the release after I leave.
Software
PHP and Laravel most of the time. Python, Go, or Node when the project is already in that language.
AWS
The account you already have: network, compute, and the bill.
Releases
Terraform and a pipeline, so a release is a button instead of a checklist.
Production
Metrics, logs, and an alarm that pages a person.
Credentials
All 12 AWS certifications
I write the change, review the plan, and leave notes the next person can run.
Tools I use to keep systems moving.
A practical stack for building, deploying, and operating modern web and cloud systems.
Node.js
Linux
AWS
Terraform
Docker
Kubernetes
Jenkins
GitHub Actions
Laravel
Python
GoNode.jsLinuxAWSTerraformDockerKubernetesJenkinsGitHub ActionsLaravelPythonGoNotes from people I've worked with
From the companies on the timeline.
“Harun is an amazing developer. He takes instruction well, takes pride in his work, and is easy to work with. I would recommend Harun without hesitation.”
“Harun was instrumental in a series of complex infrastructure upgrades. He made a stressful project feel manageable and delivered high-quality engineering work.”
“Harun is an expert and is very good at what he does.”
“Harun is a superb professional to work with, responsive, punctual, and careful about understanding project requirements.”
