Recreational Endurance Athlete Ultra Marathon Runner
Senior Lead Infrastructure/Cloud Architecture
Kyndryl Solutions Pvt Ltd
08.2019 - Current
Syamkrishnan S
Team Lead, Hybrid Active Directory & Wintel Platform
Bengaluru,KA
Timeline
Service Delivery Consultant IV (Wintel and AD)
DXC Technology
10.2015 - 07.2019
Subject Matter Expert (Cisco UCS, VMware, Wintel &
IBM India Pvt Ltd
03.2011 - 09.2015
Senior Executive (Information Systems)
People Interactive India Ltd
06.2010 - 02.2011
Senior System Administrator
Snowman Logistics Ltd
02.2008 - 05.2010
IT Support Engineer
Tata Power Solar Ltd
08.2007 - 01.2008
System Administrator
G-TEC Computer Education
04.2006 - 07.2007
Project Maintenance Engineer
iBilt Technologies Ltd
03.2005 - 03.2006
Master of Science - Applied Electronics & Computer Technology
Mahatma Gandhi University
08.2002 - 01.2005
Bachelor of Science - Electronics
Mahatma Gandhi University
08.1998 - 05.2002
Work History
Senior Lead Infrastructure/Cloud Architecture
Kyndryl Solutions Pvt Ltd
08.2019 - Current
- Experienced in Hybrid Active Directory (On-premises & Azure AD) and Windows Server administration (2012–2022).
- Proficient with Azure AD Connect, Conditional Access, Identity Protection, and Group Policy management.
- Skilled in DNS, DHCP, DFS, File & Print Services, and automation via PowerShell scripting.
- Manages patching, compliance, security hardening, and auditing.
- Knowledgeable in ITIL Incident, Change, and Problem Management.
- Proven ability to secure and monitor complex enterprise infrastructures, with expertise in identity and access management systems.
- Designs and implements Directory, DNS, Entra solutions, DR, and BCP for AD and business applications.
- Configures and maintains Azure Conditional Access, MFA, and monitors Entra services.
- Integrates and troubleshoots AD synchronization with Azure Entra-Connect.
- Administers all aspects of AD, including users, groups, OUs, GPOs, trusts, and FSMO roles.
- Conducts root cause analysis, optimizes AD performance, and enforces security best practices.
- Builds, upgrades, demotes, and cleans up domain controllers; patches servers and validates health.
- Configures/maintains/troubleshoots DHCP, DNS, NPS, DFS namespaces, and replication.
- Maintains backups of DNS zones, DHCP scopes, and GPOs; troubleshoots client connectivity.
- Manages network access policies and PKI systems, including certificate renewals.
Service Delivery Consultant IV (Wintel and AD)
DXC Technology
10.2015 - 07.2019
- Design and implement Directory Services, DNS, Azure Entra solutions, and disaster recovery/business continuity plans (DR/BCP) for critical business applications, utilizing technologies such as SRDF and DoubleTake.
- Configure, maintain, and troubleshoot core services, including DHCP, DNS, NPS, DFS namespaces, and replication, to ensure reliable network functionality.
- Maintain regular backups of DNS zones, DHCP scopes, and Group Policy Objects (GPOs); resolve client connectivity issues promptly.
- Integrate and troubleshoot Active Directory (AD) synchronization with Azure Entra-Connect for hybrid identity solutions.
- Administer all aspects of enterprise AD environments, including users, groups, OUs, GPOs, trusts, and FSMO roles, ensuring secure operations and effective identity management.
- Build, upgrade, demote, and maintain domain controllers; perform server patching and comprehensive health validation.
- Analyze and resolve Windows dump files for server hang or unexpected reboot issues; troubleshoot cluster and performance issues using performance counter analysis.
- Collaborate with vendors such as Microsoft, IBM, Vision Solutions, and EMC to resolve significant technical challenges.
- Participate in peer reviews of solution packages, including design and implementation deliverables.
- Review capacity management data regularly and proactively manage problems to prevent incidents.
- Lead or participate in Change Advisory Board activities; independently review, implement, and verify high-complexity and high-risk changes.
- Identify automation opportunities within service deliveries, implement solutions to reduce manual efforts, and automate change tasks.
- Prepare and present service delivery reports to Wintel management.
- Provide technical guidance and act as an advisor for architecture, design, development, implementation, integration, compatibility, and customization across all relevant projects.
- Collaborate with integration engineers to design and document best practice solutions that deliver predictability, reliability, and quality.
- Conduct root cause analysis and optimization of Server and AD performance, enforcing security best practices and risk mitigation.
- Manage escalation of incidents and proactively seek solutions to prevent recurring issues within the team or technology area, from L3 to L5 levels.
Subject Matter Expert (Cisco UCS, VMware, Wintel &
IBM India Pvt Ltd
03.2011 - 09.2015
- Project management for planning and implementing Windows-based networks. Responsibilities include building physical and virtual servers, implementing Active Directory, DNS, DHCP, group policies, patch management, data center consolidation, data migration, print server migration, and AD migration.
- Serve as the primary point of contact for account-related activities involving Active Directory, Wintel, VMware, and Cisco UCS.
- Participate in routine meetings such as major and critical incident bridge calls, CABs, customer CABs, management meetings, account review sessions, daily status reports, security and compliance discussions, and performance and capacity meetings.
- Prepare various account reports, dispatch incidents, plan and implement defect prevention programs, participate in root cause analysis, maintain steady-state operations, and review and approve requests for changes.
- Provide 24/7 technical support for server systems running Windows 2003, 2008, and 2012, addressing issues related to Active Directory, group policy, DNS, DHCP, MS clusters, file and print servers.
- Install new servers according to documented standards and perform service activation.
- Utilize problem management systems to resolve system issues and change control systems to implement modifications.
- Collaborate with customers and external suppliers as needed.
- Diagnose and resolve production system problems to restore services within agreed service level timeframes.
- Manage Citrix and VMware environments and perform security tasks, including health checks and patching.
Conduct client-side backup and recovery tasks. - Support account-related projects, which may involve designing and building new systems and services.
Senior Executive (Information Systems)
People Interactive India Ltd
06.2010 - 02.2011
- Owing full responsibility for Windows systems, ADCs, MDaemon Email Solution, GP Management, RIS Server, DHCP Server, WSUS Server, Trend Micro Worry-Free Business Security, WinRoute Kerio Firewall Server, and FTP Servers.
- Service: Ensure the smooth operation and availability of Windows servers.
- User Management: Create new users or modify existing users based on access rights in Windows Servers, as requested by GNOC Teams, with proper approval from respective managers.
- Capacity Planning: Monitor and implement changes required for Windows Servers and timely highlight the need for expansions.
- Maintenance: Fully maintain Windows servers, including system health checks, backups, and record-keeping.
- Application Usage: Identify misuse of applications/servers and report issues to the Head.
- Reviews: Conduct regular review meetings with user representatives and take appropriate actions as needed.
- Agreements: Ensure all AMC, Security Agreements, SLAs, support processes, and licenses are maintained and processed within required timeframes.
- Security: Ensure server/application access complies with security requirements, manage user rights, and maintain user records.
- Malicious Software: Keep hardware and software free from malicious attacks, record potential threats, and update patches and antivirus on servers.
- Daily Monitoring: Oversee the smooth running and availability of all Windows servers.
- Preventive Maintenance: Perform routine health checks on servers and applications.
- Installations: Set up new servers and applications as needed.
- Responsibilities: Fulfill duties in alignment with all contractual obligations and requirements.
Senior System Administrator
Snowman Logistics Ltd
02.2008 - 05.2010
- Monitoring and maintaining application, database, backup, and antivirus servers.
- Managing and maintaining file and print servers, as well as AD, DNS, and DHCP servers.
- Overseeing SonicWall firewall, email server, and proxy server monitoring and maintenance. Ensuring network links and VPN connectivity to branches are operational.
- Performing backups for applications, databases, mail servers, and critical user data.
- Identifying new requirements and reporting them to management.
- Handling IT-related procurements and vendor coordination. Acting as the single point of contact for service providers.
- Installing and configuring servers (Windows 2003 and 2008). Managing and maintaining AD, DNS, DHCP, WSUS, and terminal servers. Handling user and group management, along with creating and user mail accounts.
- Providing desktop support for Windows 95/98, Win2K Professional, and Windows XP OS, as well as applications, network, and hardware issues.
- Escalating problems to vendors and ensuring minimal downtime for end users.
- Offering laptop support, including software issues (OS updates, MS Office patch installation, and VPN client configuration), hardware upgrades (RAM, HDD, etc.), and addressing hardware problems.
IT Support Engineer
Tata Power Solar Ltd
08.2007 - 01.2008
- Responsible for maintenance, installation, and configuration of all Microsoft Windows operating systems, supporting Windows-based systems, and regularly monitoring and updating critical security and antivirus patches for servers and desktops.
- Coordinating with remote users to ensure smooth operations, monitoring breakdown calls, and submitting regular reports to management.
- Server Support: Installing and configuring servers (Windows 2003 Server), managing users and groups.
- Desktop Support: Providing support for Windows 95/98, Windows 2000 Professional, Windows XP OS, applications, network, and hardware. Escalating issues to vendors and ensuring problems are resolved promptly to minimize downtime for end-users.
- Laptop Support: Handling software issues (OS updates, MS Office installation, VPN client configuration), hardware upgrades (RAM, HDD, etc.), and addressing hardware problems.
System Administrator
G-TEC Computer Education
04.2006 - 07.2007
- Managing a Windows 2003-based network with a DNS server.
- Installing, configuring, and administering Windows Servers and Clients.
- Setting up and configuring Outlook clients for desktop users.
- Troubleshooting x86-based PC hardware and peripherals.
- Acting as the District Coordinator for maintaining IT infrastructure.
Project Maintenance Engineer
iBilt Technologies Ltd
03.2005 - 03.2006
- Administered Windows 2000-based networks with integrated DNS server management.
- Provided desktop support for diverse client operating systems, including Windows 9x and Windows 2000.
- Conducting preventive maintenance on PCs and peripherals to ensure optimal performance.
- Managed data backups utilizing tape devices.
- Implemented network security measures against viruses and worms using advanced antivirus tools.
- Maintained and troubleshot x86-based PC hardware platforms.
- Installed application software and performed database setups based on DB2.
- Performed regular backups of databases and other critical organizational data.
Overview
20
20
years of professional experience
6
6
years of post-secondary education
Education
Master of Science - Applied Electronics & Computer Technology
Mahatma Gandhi University
Kottayam 08.2002 - 01.2005
Bachelor of Science - Electronics
Mahatma Gandhi University
Kottayam 08.1998 - 05.2002
Skills
Hybrid Active Directory Administration (On-prem Azure AD)
Windows Server Administration (2003/2008/2012/2016/2019/2022)
Azure AD Connect, Conditional Access, and Identity Protection
Group Policy Management and Troubleshooting
DNS, DHCP, DFS, File and Print Services
PowerShell Scripting and Automation
Office 365/Exchange Online Support
Patch Management and Compliance
Incident, Change, and Problem Management (ITIL Framework)
Security Hardening and Auditing
Team Management, Technical Leadership, and Mentoring
Expertise in Hybrid AD concepts, Azure Architecture, and troubleshooting
Validating and fixing security compliance in AD
Hands-on experience with Veza and PingCastle
Configuring SSO for applications in Azure using Microsoft Entra and App Proxy connector
Strong experience with Microsoft Entra, AD, DHCP, DNS, KMS, DFS, GPO, Trust Relationships, MS Clustering, and PKI
Managing Azure Conditional Access, SSPR implementation, and RBAC
Ability to work independently, prioritize tasks effectively, and handle P1 and P2 issues
Problem-solving skills with attention to root cause analysis
Client Management
Security, Risk, and Compliance Management
Automation using PowerShell
Preparing, presenting, and successfully completing IT Security & Governance Audits by KPMG, NCC, etc
High-Performance Grid Computing Environment using Tibco DataSynapse Grid Manager
DR/BCP Planning and testing for Data Centers and applications
Data replication through Doubletake & SRDF
Investigating, preparing, and presenting RCAs for Major & Critical Incidents
Strong expertise and knowledge in RFS & Project Execution
Summary
Experienced and results-driven IT professional with over 19 years of hands-on expertise in managing and supporting Active Directory environments including MS Entra, On-Prem and Wintel platforms. Proven ability to administer, monitor, and secure complex enterprise infrastructures, including MS Entra, On-Prem AD, Windows Server, and associated services. Adept at troubleshooting, automation, and ensuring high availability of identity and access management systems.
Currently serving as a Senior Lead in Infrastructure & Cloud Architecture at Kyndryl Solutions Pvt Ltd, with responsibilities that include managing, maintaining, and troubleshooting Hybrid Active Directory (AD) infrastructure. The role contributes to the stability, security, and scalability of the Security Engineering Department and includes support for technologies such as Azure Entra-Connect, SSO, Azure Proxy, RBAC, Multi-Factor Authentication (MFA), Conditional Access, Azure Insights, AD, DHCP, DNS, KMS, DFS, and PKI.
Work Preference
Work Type
Full TimeWork Location
On-SiteRemoteHybridImportant To Me
Career advancementWork-life balanceCompany CulturePersonal development programsHealthcare benefitsWork from home optionPaid time offTeam Building / Company RetreatsPaid sick leaveCertification
- Microsoft Certified: Azure Solutions Architect Expert (AZ-305)
- Microsoft Certified: Azure Security Engineer Associate (AZ-500)
- Microsoft Azure Administrator Associate (AZ-104)
- Microsoft Certified: Azure Fundamentals (AZ-900)
- MCSA 2012\2008
- VMware Certified Associate in Data Center Virtualization
- ITIL V3 Foundation (APMG)
Interests
Languages
English
Advanced (C1)
Malayalam
Bilingual or Proficient (C2)
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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