Sivarajan Ayyasamy
Espoo
Summary
Azure Cloud and DevOps Architect with over 15+ years of experience in designing and implementing scalable cloud infrastructure across Europe and Asia, specializing in Azure, Terraform, Kubernetes, and DevOps automation. Expertise in cloud migration, security, and CI/CD pipelines, with a strong ability to bridge technical and business requirements to deliver secure, resilient, and cost-efficient solutions. Proven leadership in cross-functional teams and driving innovation through automation and process optimization. Currently based in Finland with valid work authorization, committed to leveraging extensive experience to enhance organizational efficiency and performance.
Overview
15
15
years of professional experience
4
4
Certification
Work History
Associate Consultant (Technical Architect)
Tata Consultancy Services (TCS)
04.2025 - Current
- Designed and implemented scalable Azure solutions improving high availability and resilience.
- Led Azure network and security designs including vWAN, vHub, NSG, and Azure Firewall.
- Automated deployments with Terraform and PowerShell reducing manual effort by 60%.
- Provided architectural guidance to OP Bank cloud infrastructure projects in Finland.
- Ensured compliance with security and regulatory requirements in banking environments.
Associate Consultant (Technical Architect)
Tata Consultancy Services (TCS)
05.2023 - 04.2025
- Delivered end-to-end Azure migration projects for enterprise clients.
- Built CI/CD pipelines with Azure DevOps and Jenkins, enabling faster deployments.
- Designed disaster recovery strategies and implemented monitoring via Azure Log Analytics.
- Collaborated with cross-functional teams to translate business needs into cloud solutions.
Cloud Architect
Tata Consultancy Services (TCS)
08.2021 - 04.2023
- Migrated multiple workloads to Azure and built secure infrastructure with Terraform.
- Implemented Azure AD B2C, RBAC, Key Vault, and other security frameworks.
- Automated patch management and routine tasks using PowerShell scripting.
System Infrastructure Specialist
CDM Smith India Corporation Pvt Ltd
10.2014 - 08.2021
- Migrated on-premises workloads to Azure and designed cloud-native solutions.
- Implemented Azure Backup, VNETs, VPN, ExpressRoute, and Azure DNS.
- Set up CI/CD pipelines using Jenkins, Terraform, and Docker.
- Administered VMware ESXi and Windows Servers, ensuring high availability.
Education
Bachelor of Engineering - Electronics & Communication Engineering
Anna University
01.2009
Skills
- Cloud Platforms: Microsoft Azure (IaaS, PaaS, AVD), AWS (basic)
- IaC & Automation: Terraform, Ansible, PowerShell, ARM Templates
- DevOps & CI/CD: Azure DevOps, Jenkins, GitHub Actions, Docker, Kubernetes
- Infrastructure & Virtualization: Windows Server, Linux (basic), VMware, SCCM
- Networking & Security: VNet, ExpressRoute, Azure Firewall, Load Balancer, NSG, Traffic Manager
- Problem-solving
- Quality assurance
- Planning and execution
- Cost analysis
Certification
- Microsoft Certified: Azure Solutions Architect Expert (AZ-303/304)
- Microsoft Certified: DevOps Engineer Expert (AZ-400)
- VMware Certified Professional – Data Center Virtualization (VCP 5.5)
- PowerShell for SCCM Administration (55133)
- Server Virtualization with Windows Server 2012 R2 Hyper-V (74-409)
- Installing, Configuring & Administering Windows 7 (70-680)
Languages
English (Fluent)
Tamil (Native)
Finnish (Basic – learning)
Other Experience
- Trimble Information Technologies, Chennai – IT Operations Engineer (2013–2014)
- GISbiz Technologies, Chennai – Junior System Administrator (2011–2013)
- CMS Info Systems, Chennai – System Admin & Microsoft Trainer (2010–2011)
Timeline
Associate Consultant (Technical Architect)
Tata Consultancy Services (TCS)
04.2025 - Current
Associate Consultant (Technical Architect)
Tata Consultancy Services (TCS)
05.2023 - 04.2025
Cloud Architect
Tata Consultancy Services (TCS)
08.2021 - 04.2023
System Infrastructure Specialist
CDM Smith India Corporation Pvt Ltd
10.2014 - 08.2021
Bachelor of Engineering - Electronics & Communication Engineering
Anna University
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