Celestin Joy
Kannur
Summary
Dedicated Cloud Engineer with experience managing large-scale Azure environments, optimizing infrastructure, and ensuring high availability for mission-critical applications across global data centers. Proven expertise in troubleshooting complex networking and application issues, driving operational efficiency, and delivering innovative cloud solutions.
Overview
3
3
years of professional experience
1
1
Certification
Work History
CLOUD ANALYST
HCL TECHNOLOGIES
Chennai
09.2022 - Current
- Currently working as an Azure Cloud Operations Engineer (L3) by managing a large-scale Azure estate for a client with 15,000+ virtual machines (including SAP HANA systems) and 600+ applications, including 150 business-critical applications.
- Managed multiple Azure services across 100+ subscriptions in six regions.
- Expertise in networking, managing over 1,000 virtual networks in Azure, connected to five global data centers via ExpressRoute.
- Experience in troubleshooting connectivity issues for over 600 applications hosted in Azure application gateways.
- Involved in critical tasks like ExpressRoute Direct migration, Palo Alto firewall upgrades, and Application Gateway updates.
- Worked as a Site Reliability Engineer (SRE), managing incidents through monitoring and troubleshooting with Grafana, AppDynamics, and ThousandEyes.
- Optimized the client's cloud infrastructure hygiene using cloud bots, reducing costs significantly.
- Handled deployments in Azure Kubernetes Service (AKS) and managed the cloud infrastructure using Terraform.
- Experienced in resolving AKS deployment failures and integrating Istio, KEDA, Argo CD, Helm charts, Prometheus, Grafana, and other tools with AKS clusters.
- Automated cloud provisioning and configuration management using Ansible and Terraform.
- Worked with Azure DevOps, building CI/CD pipelines, and managing microservice deployments on Azure Kubernetes clusters.
- Proficient in the Spring Boot framework for Java, with experience in creating REST APIs.
- Knowledge of scripting languages such as Python, PowerShell, and Bash.
Education
BTECH - ELECTRICAL AND ELECTRONICS ENGINEERING
Cochin University of Science And Technology
Kochi, India06-2022
Skills
- Azure
- Kubernetes (EKS, AKS, GKE)
- Networking
- Docker
- CI/CD pipelines (Azure DevOps)
- Terraform
- Ansible
- Python
- PowerShell
- Grafana
- Helm and GitOps
- Java (Spring Boot)
Personal Information
- Date of Birth: 02/07/99
- Gender: Male
- Nationality: Indian
Certification
- Microsoft Certified: Azure Developer Associate (AZ-204)
- Microsoft Certified: Azure Administrator Associate (AZ-104)
- Microsoft Certified: Azure Fundamentals (AZ-900)
- Certified SRE Associate : Cloud Native and AI Labs
Timeline
CLOUD ANALYST
HCL TECHNOLOGIES
09.2022 - Current
BTECH - ELECTRICAL AND ELECTRONICS ENGINEERING
Cochin University of Science And Technology
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