Mohammad is available for hire

Mohammad Hassan Ur Rehman

Verified Expert in Engineering

DevOps Engineer and Developer

Kabirwala, Punjab, Pakistan

Toptal member since March 13, 2026

Expertise

AWS Solutions System Security Cloud Engineering Site Reliability Cloudflare OKTA DevOps Visual Studio Development Git Docker Terraform AWS AWS Lambda

Bio

Mohammad Hassan is a DevOps engineer with 5 years of experience designing and automating cloud infrastructure on AWS. He specializes in Kubernetes, Terraform, and CI/CD pipelines, emphasizing infrastructure as code (IaC) and cost optimization. Mohammad Hassan has delivered solutions across retail, healthcare, and IoT industries. An AWS Certified Solutions Architect, he enjoys sharing DevOps knowledge through technical blogs.

Portfolio

Adept Tech Solutions

Kubernetes, Amazon Web Services (AWS), GitHub, Azure Active Directory...

Xavor

Amazon Web Services (AWS), Terraform, Kubernetes, GitLab CI/CD, Grafana, Docker...

Global Rescue

Amazon Web Services (AWS), AWS CloudFormation...

Experience

DevOps - 5 years
Docker - 5 years
Terraform - 5 years
Amazon Web Services (AWS) - 5 years
Kubernetes - 4 years
Linux - 4 years
Virtual Private Cloud (VPC) - 4 years
GitHub Actions - 4 years

Preferred Environment

Linux, Visual Studio Code (VS Code), Terminal, Windows Subsystem for Linux (WSL), Docker, Kubernetes, Terraform, GitHub Actions, DevOps, MacOS, Microsoft 365

The most amazing...

...project I've completed was migrating a healthcare EMR infrastructure to AWS ECS and Kubernetes in 3 months, achieving 99.9% uptime for 1,000+ doctors in MENA.

Work Experience

Senior DevOps Engineer

2026 - PRESENT

Adept Tech Solutions

Managed Kubernetes cluster operations across 5 nodes and 18 microservices, ensuring high availability and production reliability for a synthetic data AI platform serving a cross-functional team of 20 engineers.
Designed and maintained CI/CD pipelines across 25 repositories using GitHub Actions, standardizing deployment workflows and reducing manual intervention across all services.
Implemented ELK Stack for centralized logging across all 18 services, improving observability and reducing mean time to diagnose production issues.
Set up SonarQube for static code analysis and integrated it into CI/CD pipelines, establishing a baseline for code quality standards across the engineering team.

Technologies: Kubernetes, Amazon Web Services (AWS), GitHub, Azure Active Directory, Cloud Infrastructure, GitOps, AWS Cloud Operations, AWS Cloud Architecture, AWS ECS Fargate, FastAPI, Machine Learning Operations (MLOps), Innovation, Cloud Security, DevSecOps, Cloudflare, Vulnerability Management, Vulnerability Scanning, Zero Trust, AWS IAM Identity Center, Continuous Integration (CI), Microsoft Entra ID, Scripting, Systems Engineering, MDM, Azure Kubernetes Service (AKS), Identity & Access Management (IAM), Cloud, Data Privacy, Large Language Models (LLMs), Model Deployment, Observability Tools, Performance Optimization, Infrastructure, Observability

Senior DevOps Engineer

2025 - 2026

Xavor

Designed and deployed CloudFront and Lambda image optimization infrastructure to ECS with auto-scaling, achieving 30% faster image response times for eCommerce sites serving millions of customers.
Optimized GitLab CI/CD pipelines with Terraform-based infrastructure deployments, improving pipeline speed and efficiency by 40%.
Managed and optimized CloudFront distributions for high-performance image delivery, improving CDN cache hit ratio and reducing origin load across the eCommerce platform.

Technologies: Amazon Web Services (AWS), Terraform, Kubernetes, GitLab CI/CD, Grafana, Docker, Amazon DynamoDB, Python, DevOps, Site Reliability Engineering (SRE), Jira, Confluence, YAML, Amazon EC2, Virtual Private Cloud (VPC), Visual Studio Code (VS Code), Terminal, Windows Subsystem for Linux (WSL), Amazon Simple Queue Service (SQS), AWS Fargate, GCP DevOps, Linux Administration, Infrastructure as Code (IaC), Performance, Security, OpenTofu, Amazon Virtual Private Cloud (VPC), Amazon CloudWatch, Docker Compose, Architecture, GitLab, APIs, SDKs, Google Cloud Platform (GCP), Python 3, Security Audits, User Permissions, AWS IAM, Containers, PostgreSQL, Redis, Cloud Infrastructure, GitOps, AWS Cloud Operations, AWS Cloud Architecture, AWS ECS Fargate, Amazon SageMaker, FastAPI, Machine Learning Operations (MLOps), Innovation, Cloudflare, Vulnerability Scanning, Zero Trust, AWS IAM Identity Center, Continuous Integration (CI), Scripting, Systems Engineering, MDM, OpenShift, Identity & Access Management (IAM), Azure Marketplace, Cloud, Data Privacy, Large Language Models (LLMs), Observability Tools, Performance Optimization, Infrastructure, Cloud Monitoring, Observability, Google Kubernetes Engine (GKE)

DevOps Engineer

2024 - 2025

Global Rescue

Automated AWS infrastructure provisioning with CloudFormation and Terraform (VPCs, subnets, and security groups), cutting environment setup time by 60%.
Built reusable CI/CD pipeline templates in GitHub Actions for Docker, ECS, and ECR workflows, reducing manual deployment errors by 40%.
Led cloud cost optimization initiative, achieving 60% cost reduction through EC2 rightsizing, S3 lifecycle policies, unused resource cleanup, and scheduled usage optimization.

Technologies: Amazon Web Services (AWS), AWS CloudFormation, Amazon Elastic Container Service (ECS), Amazon Elastic Container Registry (ECR), Amazon S3 (AWS S3), DevOps, Site Reliability Engineering (SRE), Jira, Confluence, YAML, Amazon EC2, Virtual Private Cloud (VPC), Visual Studio Code (VS Code), New Relic, Terminal, Windows Subsystem for Linux (WSL), Amazon Simple Queue Service (SQS), AWS Fargate, Linux Administration, Infrastructure as Code (IaC), MySQL, Performance, Security, OpenTofu, Amazon Virtual Private Cloud (VPC), Amazon CloudWatch, Docker Compose, Transport Layer Security (TLS), Architecture, Real-time Data, Real-time Systems, APIs, SDKs, Python 3, User Permissions, AWS IAM, PostgreSQL, Redis, Cloud Infrastructure, AWS Cloud Operations, API Gateways, AWS ECS Fargate, Innovation, Cloudflare, Vulnerability Scanning, Zero Trust, Pulumi, AWS IAM Identity Center, Continuous Integration (CI), Scripting, Identity & Access Management (IAM), Cloud, Observability Tools, Infrastructure, Cloud Monitoring, Datadog, Observability

Junior DevOps Engineer

2022 - 2024

Stella Technology

Automated and deployed scalable AWS infrastructure using Terraform and Ansible on Docker and Kubernetes with self-hosted Linux servers, ensuring 99.9% uptime.
Led complete infrastructure migration from 1Cloud VMs to AWS ECS and Kubernetes within 3 months, significantly improving system reliability and deployment speed.
Implemented centralized logging and monitoring using ELK Stack for improved observability across distributed services.

Technologies: Kubernetes, Linux, Docker, Amazon Elastic Container Service (ECS), Bash Script, ELK (Elastic Stack), Ansible, Prometheus, DevOps, Site Reliability Engineering (SRE), Jira, Confluence, YAML, Go, Amazon EKS, Amazon EC2, Virtual Private Cloud (VPC), Visual Studio Code (VS Code), Terminal, Windows Subsystem for Linux (WSL), Amazon Simple Queue Service (SQS), Linux Administration, JavaScript, Server Optimization, MySQL, Performance, Amazon Virtual Private Cloud (VPC), Amazon CloudWatch, Docker Compose, Transport Layer Security (TLS), APIs, Google Cloud Platform (GCP), Python 3, Security Audits, System Administration, User Permissions, AWS IAM, Containers, Redis, Cloud Infrastructure, AWS Cloud Operations, AWS DevOps, AWS ECS Fargate, AWS CodeCommit, Azure, AWS CodeDeploy, Scripting, Identity & Access Management (IAM), Distributed Systems, Jenkins

Experience

IoT Sensor Infrastructure Automation | FreshAir Sensors

https://freshairsensor.com/

Automated complete AWS infrastructure for an IoT sensor platform processing data from 15,000+ devices. I built IaC with Terraform and CloudFormation, achieving 60% reduction in environment provisioning time. I also implemented GitHub Actions CI/CD with reusable templates, reducing deployment errors by 40%, and led cost optimization, achieving 60% reduction in monthly cloud spend.

eCommerce Image Optimization Platform | Guitar Center

Designed and implemented a high-performance image optimization infrastructure for a major US retailer with 300+ stores nationwide. I built a CloudFront distribution integrated with Lambda functions for on-the-fly image resizing and format conversion, reducing bandwidth costs and improving user experience. The processing back end was deployed to ECS with auto-scaling policies to handle traffic spikes during peak shopping seasons, and proper CORS headers and ALB timeout settings were configured to ensure reliable image delivery. I also achieved 30% improvement in image load times across the eCommerce platform serving millions of customers.

Healthcare EMR Cloud Migration | Equinox

https://www.stellatechnology.com/solutions.html

Led a complete infrastructure migration from legacy 1Cloud VMs to AWS ECS and Kubernetes for a healthcare EMR system serving 1,000+ doctors. I implemented Terraform and Ansible automation to ensure consistent deployments across environments and achieve 99.9% uptime with self-hosted Kubernetes clusters. I also deployed ELK Stack for centralized logging and compliance monitoring.

Confidant Health

https://www.confidanthealth.com

Confidant Health is a US-based virtual behavioral health platform specializing in mental health and addiction treatment. They run a proprietary telehealth system that serves patients and providers via a HIPAA-compliant, cloud-native infrastructure on AWS.

Education

2018 - 2022

Bachelor's Degree in Computer Science

Sukkur IBA University - Sukkur, Pakistan

Certifications

FEBRUARY 2024 - JANUARY 2027

AWS Certified Solutions Architect – Associate

Amazon Web Services

Skills

Libraries/APIs

REST APIs

Tools

Amazon CloudFront, Amazon Elastic Container Service (ECS), AWS CloudFormation, Git, Terminal, Terraform, Grafana, Amazon Elastic Container Registry (ECR), Ansible, AWS Fargate, OpenTofu, Amazon Virtual Private Cloud (VPC), Amazon CloudWatch, Docker Compose, GitLab, AWS IAM, GitHub, AWS CodeDeploy, Claude, Google Kubernetes Engine (GKE), Jenkins, Amazon EKS, Jira, Confluence, Amazon Simple Queue Service (SQS), GitLab CI/CD, ELK (Elastic Stack), AWS CodeCommit, Amazon SageMaker, Google Workspace, Observability Tools, Azure Kubernetes Service (AKS)

Languages

YAML, Python, Go, Bash Script, Bash, JavaScript, Python 3, Snowflake, C#

Paradigms

DevOps, Continuous Delivery (CD), HIPAA Compliance, Continuous Integration (CI), Real-time Systems, DevSecOps

Platforms

AWS IoT, Amazon EC2, AWS Lambda, Linux, Visual Studio Code (VS Code), Docker, Kubernetes, Amazon Web Services (AWS), Google Cloud Platform (GCP), Azure, OpenShift, NVIDIA CUDA, New Relic, MacOS, Azure Marketplace

Storage

Amazon S3 (AWS S3), PostgreSQL, Redis, On-premise, Amazon DynamoDB, MySQL, Datadog, Azure Active Directory, Microsoft Entra ID

Industry Expertise

Cybersecurity

Other

Virtual Private Cloud (VPC), Cloud Computing, GitHub Actions, Windows Subsystem for Linux (WSL), CI/CD Pipelines, Site Reliability Engineering (SRE), Linux Administration, AWS Certified Solution Architect, Infrastructure as Code (IaC), Performance, Podman, Transport Layer Security (TLS), Architecture, APIs, SDKs, User Permissions, Containers, Cloud Infrastructure, HIPAA, AWS Cloud Operations, AWS ECS Fargate, AWS SCP, Innovation, Cloudflare, Vulnerability Scanning, Zero Trust, AWS IAM Identity Center, JumpCloud, Okta, Scripting, Identity & Access Management (IAM), Cloud, Distributed Systems, Infrastructure, Cloud Monitoring, Observability, Scalability, Amazon RDS, Prometheus, GCP DevOps, Server Optimization, Security, Real-time Data, Security Audits, System Administration, GitOps, AWS Cloud Architecture, AWS DevOps, API Gateways, Machine Learning Operations (MLOps), Cloud Security, Vulnerability Management, Pulumi, Microsoft 365, Systems Engineering, Compliance, MDM, Artificial Intelligence (AI), Data Privacy, Large Language Models (LLMs), Model Deployment, Performance Optimization, FastAPI

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