Hojat Gazestani
DevOps & Cloud Engineer
Building resilient, scalable systems with modern cloud technologies. Specializing in Kubernetes, AWS, Python/Django, and DevOps automation.
Contact Information
Location
Available for remote work worldwide
Direct Contact
Call or WhatsApp
Primary contact method
About Me
I am a seasoned DevOps & Cloud Engineer with over a decade of experience specializing in building resilient, scalable systems. My journey began programming in Pascal and Delphi, followed by C++ under mentorship, and evolved through mastering Linux, networking, and security—eventually leading me to infrastructure automation with Python, microservices, and cloud-native DevOps practices.
Today, as a freelance Kubernetes, AWS, and DevOps engineer, I architect and manage Kubernetes clusters, implement CI/CD and GitOps pipelines, and develop web applications using Python and Django. I automate infrastructure across platforms like OpenStack, AWS, Docker, and more. I'm passionate about delivering stability without sacrificing velocity—empowering development teams to iterate quickly and confidently.
Skills
Cloud & Infrastructure
Programming & Automation
Web & Application
Monitoring & Observability
Networking & Security
Message Brokers & Databases
Latest Blogs
View All BlogsLinux Sudoers File Configuration: A Practical Guide with Examples
How to configure the /etc/sudoers file. Explains syntax, aliases, and best practices for granting sudo access without a password.
Read moreUnderstanding Linux Process UIDs: Real, Effective, Saved, and Filesystem
Linux user IDs (UIDs) and how the kernel uses Real, Effective, Saved, and Filesystem UIDs to manage permissions and security for processes like Nginx and passwd.
Read moreWhat is the Linux VFS? Understanding the Virtual File System
A deep dive into the Linux Kernel's Virtual File System (VFS), the abstraction layer that unifies Ext4, NTFS, proc, and more under a single interface. Learn how VFS works with superblocks, inodes, and dentries.
Read moreProfessional Experience
Cloud Engineer | DevOps | Kubernetes | AWS (Contract)
May 2023 – Present- Developed scalable services on AWS using EC2 Auto Scaling, ELB, S3, and DynamoDB
- Engineered AWS EKS Kubernetes clusters with Terraform, reducing deployment time by 60%
- Optimized Kubernetes deployments using Kubespray and Bash scripts, achieving 80% faster application launches
- Created HAProxy training materials (GitHub, YouTube) boosting content delivery by 50%
- Implemented GitLab CI/CD with Kustomize and Flux, reducing delivery time by 80%
OpenStack DevOps Engineer
Sep 2021 – Dec 2022- Architected OpenStack and Ceph infrastructure, improving network management by 40%
- Transformed single-node Redis to cluster, achieving 100% scalability and 70% reliability boost
- Redesigned RabbitMQ into cluster configuration, improving scalability and stability by 80%
DevOps Engineer
Apr 2020 - May 2021- Optimized Python unit tests in CI/CD, improving code management by 100%
- Automated Netbox-VMware vCenter synchronization with Python
- Implemented monitoring stack (Zabbix, Grafana, Prometheus, cAdvisor)
- Established SLAs for 50+ web services in Zabbix
Systems Engineer
Jul 2016 – Apr 2020Didehbannet
Tehran, Iran- Designed and secured new server room infrastructure
- Implemented Kubernetes/Docker storage optimization saving high-cost storage space
- Redesigned core network security (Juniper, FortiGate) improving security by 80%
- Automated network management with Python scripts
- Configured EMC Unity and HP SAN storage for VMware HA clusters
Education
Bachelor's Degree in Information Security
University of Applied Science and Technology (UAST)
Associate Degree in Software Development
Chamran College
Languages
Online Content
Certifications
AWS Cloud Solutions Architect Specialization
Coursera
DevOps on AWS Specialization
Coursera
Python for Everybody Specialization
Coursera
Google Cloud Fundamentals: Core Infrastructure
Coursera
Container & Kubernetes Essentials V2
Coursera
Introduction to Containers with Docker, Kubernetes & OpenShift
Coursera
AWS CloudFront: Serve content from multiple S3 buckets
Coursera
Routing & Switching (CCNA, CCNP)
Cisco
Data Center (CCNA, CCNP)
Cisco
Mikrotik (MTCNA, MTCRE, MTCWE)
Mikrotik
Microsoft (MCSA)
Microsoft
VMware (VCP, NSX, SRM)
VMware
PWK (Penetration Testing with Kali Linux)
Offensive Security
ISMS (Information Security Management System)
ISO/IEC 27001
EMC Storage Certifications
Dell EMC