John Samuel
@johnsamuel
Senior DevOps/SRE engineer building secure, resilient multi-cloud delivery systems.
CanadaWhat I'm looking for
I’m an experienced Senior DevOps Engineer with 7+ years advancing DevOps, SRE, and DevSecOps initiatives. I architect and automate multi-cloud and hybrid infrastructure across AWS, Azure, and GCP to support large-scale, high-availability enterprise environments.
I specialize in Infrastructure as Code and automated provisioning with Terraform, Pulumi, CloudFormation, and Ansible, plus Kubernetes operations using Docker, EKS, ECS, Helm, and OpenShift. I design fault-tolerant, disaster-resilient architectures using AWS Backup, Azure Site Recovery, Velero, and Zerto, while driving zero-downtime delivery through Blue-Green, Canary, and Rolling deployments.
In recent roles, I modernized critical systems at TD Bank by migrating to Azure, operating Red Hat OpenShift and Tanzu Kubernetes Grid, and building AI copilots with Azure OpenAI and secure governance. I’ve also led regulated healthcare transformations at Mastercard, strengthening CI/CD, observability, and compliance (including HIPAA/HITRUST controls), and I bring a strong security-by-design mindset through continuous scanning and threat mitigation.
Experience
Work history, roles, and key accomplishments
Senior Azure DevOps Engineer
TD Bank
Feb 2024 - Present (2 years 1 month)
Led modernization of loan and mortgage integration platforms by migrating core systems to Microsoft Azure while enabling zero-downtime service continuity. Implemented CI/CD and GitOps-based Kubernetes rollouts, reducing manual deployment effort by over 70% and improving MTTR using automated health checks and monitoring.
Drove cloud transformation for healthcare workloads, migrating critical EHR/EMR systems from AWS to Azure with zero service disruption. Built and secured Azure DevOps CI/CD for .NET applications and ARM/Terraform IaC, integrating monitoring/logging for proactive issue detection and compliance controls.
Engineered CI/CD frameworks using Jenkins and Azure DevOps pipelines with automated quality gates and release automation. Delivered GitOps-driven AKS rollouts using Flux/Argo CD and improved observability with Azure Monitor, Prometheus, and Grafana, while standardizing deployments with Terraform/ARM and SaltStack configuration management.
Education
Degrees, certifications, and relevant coursework
Southeast Missouri State University
Bachelor of Computer Science, Computer Science
Earned a Bachelor of Computer Science (May 2018). The provided education details also reference JNTUH, India.
Tech stack
Software and tools used professionally
Azure RBAC
Microsoft Azure
GitHub
GitLab
Bitbucket
Azure Repos
SonarQube
Kubernetes
Velero
Azure Kubernetes Service
Jenkins
GitHub Actions
Azure Pipelines
GitLab CI
MySQL
PostgreSQL
MongoDB
Microsoft SQL Server
Cassandra
Percona
Gmail
.NET
Redis
Terraform
Pulumi
Azure Resource Manager
Azure DevOps
ASP.NET
RabbitMQ
Grafana
Kibana
Prometheus
OpenTelemetry
Azure Monitor
ZAP
Red Hat OpenShift
Prisma
Checkmarx
Ansible
Serverless
Azure Functions
Toolkit
Azure Firewall
AWS Backup
Zap
SQL
ServiceNow
Snyk
Cilium
Foundry
Harness
GitHub Copilot
Azure Logic Apps
Argo CD
OWASP ZAP
Bash
Aqua Security
Calico
Agentic
Enhance
Dynamic
Task
Jan
Azure AI Foundry
Availability
Location
CanadaAuthorized to work in
Job categories
Skills
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