Balaji Ramamoorthy
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Balaji Ramamoorthy

Senior Infrastructure Engineer: Windows Server, VMware vSphere, Entra ID and Azure

I am a senior infrastructure and cloud engineer with 16 years of experience delivering and running enterprise environments across the UK, EMEA, APAC and North America. I work directly with client stakeholders from design through go-live and into operations, and I automate repeat work with PowerShell. I have worked on site in the UK, the USA and India, and led onshore and offshore teams alongside several service providers.

Contact me About me

  • 16 yearsin enterprise infrastructure
  • 800+servers migrated to Windows Server 2019 and 2025
  • 1,000+mailboxes moved in a tenant consolidation
  • 300+applications moved to Entra ID single sign-on

My story

How I went from first-line support to designing and delivering enterprise infrastructure.

  1. Where I started

    I began in 2009 as the single IT contact for seven regional offices, in first-line support. Being the person everyone calls teaches you quickly what matters: clear answers, calm under pressure, and fixing the cause rather than the symptom.

  2. How the work grew

    From support I moved into design and architecture. Today I work at Tata Consultancy Services in the United Kingdom as a single point of accountability for clients, from first design through go-live and into day-to-day operations. I have worked on site in the UK, the USA and India for Fortune 500 clients in utilities, financial services, manufacturing and professional services, and I have led onshore and offshore teams.

  3. Still hands-on

    I still build, not only plan. Recent work includes moving over 800 servers to Windows Server 2019 and 2025, single sign-on for over 300 applications through Microsoft Entra ID, and a tenant consolidation of over 1,000 mailboxes. I write the designs, take them through review and business approval, and then deliver them.

  4. Still learning

    I learn quickly, on the job and in my own time. I hold the Azure Solutions Architect Expert (AZ-305) and Azure Administrator (AZ-104) certifications, plus VCP-DCV and VCP Cloud Management, and I write up what I learn in Insights.

About me

I am a senior infrastructure and cloud engineer with 16 years of experience delivering and operating enterprise environments across the UK, EMEA, APAC and North America. I began in 2009 as the single IT contact for seven regional offices. Today I work at Tata Consultancy Services in the United Kingdom, as a single point of accountability for clients: from first design, through go-live, into day-to-day operations. I have worked on site in the UK, the USA and India for Fortune 500 clients in utilities, financial services, manufacturing and professional services. I have led delivery through onshore and offshore teams and worked alongside several service providers and vendors for the same client.

My work sits where four areas meet:

  • Servers and virtualisation. Windows Server and VMware vSphere estates. I have migrated over 800 servers to Windows Server 2019 and 2025 with no unplanned downtime and consolidated over 800 physical servers onto vSphere with P2V.
  • Identity and security. Microsoft Entra ID, with single sign-on for over 300 enterprise applications through SAML, OAuth, OIDC and SCIM, and Zero Trust through Conditional Access, MFA, Identity Protection, Privileged Identity Management and Access Reviews.
  • Microsoft 365 and data migration. A cross-tenant consolidation covering over 1,000 mailboxes and over 500 devices with no disruption for users, and over 10 TB of data moved to OneDrive and Azure Files.
  • Cloud and automation. Azure IaaS, assessment and migration of on-premises servers to Azure virtual machines, and PowerShell automation that cuts manual effort in daily operations.

What I enjoy most is the full journey: assessing an environment, understanding what the business needs, designing the right solution and seeing it through to delivery. I write the high-level and low-level designs, take them through architecture review and business approval, and then build them. I am as comfortable presenting to stakeholders as I am building and automating.

I started my career in first-line support and grew into an architect role, so learning new technology quickly is how I have always worked. If a role needs a skill I have not used yet, I will learn it fast and apply it with the same care as everything else I deliver. Given the opportunity, I will meet the needs of the role and go beyond them.

I am based in the United Kingdom and open to infrastructure, cloud and platform engineering roles here or in another country. I am happy to relocate for the right opportunity.

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