SIVAMOORTHY KARUNAKARAN
NETWORK DELIVERY MANAGER
Chennai
Summary
Infrastructure Services Manager (Role – Network Delivery Manager) leads end-to-end enterprise network delivery for global clients across LAN, WAN, WLAN, Azure NVA, and security services. Drives ITIL-based incident, problem, and change control while maintaining SLA compliance, service stability, and executive KPI reporting. Strengthens outcomes through vendor governance, offshore team coordination, and continuous improvement across complex multi-vendor environments.
Overview
2
2
Languages
6
6
Certifications
18
18
years of professional experience
Work History
Infrastructure Services Manager (Role – Network Delivery Manager)
DXC Technologies India Pvt. Ltd (Transitioned as Part of a Global Program From AT&T Global Network Services India Pvt. Ltd)
Chennai, India
07.2021 - Current
- Own end-to-end delivery of enterprise network services for global clients, ensuring high availability, optimal performance, and strict compliance with contractual SLAs.
- Lead daily network operations encompassing LAN, WAN, WLAN, Azure NVA, and security services, managing incidents, problem resolution, and change control in alignment with ITIL best practices.
- Drive transition and transformation initiatives to support service stabilization, encourage tool adoption, and enhance operational maturity
- Act as the primary liaison for customers and internal stakeholders, guaranteeing service delivery aligns with strategic business objectives.
- Manage multi-vendor ecosystems while overseeing vendor performance, conducting service reviews, ensuring contract compliance, and implementing continuous improvement strategies.
- Define, monitor, and report key performance indicators (KPIs) and service metrics, delivering executive-level dashboards and actionable insights.
- Lead, mentor, and coordinate cross-functional and offshore network engineering teams to optimize resource allocation and foster professional development.
- Ensure compliance with security, risk management, and regulatory standards, including audit preparedness, business continuity, and disaster recovery planning.
- Plan and execute small to medium-scale network projects, delivering results on time, within scope, and on budget.
- Enhanced customer satisfaction by resolving disputes promptly and maintaining high-quality service delivery.
- Global Network Services India Pvt. Ltd (Transitioned as part of a global program from AT&T Global Network Services India Pvt. Ltd)
Senior Specialist
AT&T Global Network Services India Pvt Ltd
Chennai, India
11.2018 - 07.2021
- Designed and managed resilient enterprise network infrastructures, including LAN/WAN, firewalls, load balancers, and wireless controllers, to ensure optimal availability and scalability.
- Developed and maintained HLD/LLD documentation, enhancing transparency and alignment across delivery teams.
- Drove continuous improvement initiatives by analyzing recurring incidents and executing root-cause-driven corrective actions.
- Improved customer satisfaction by troubleshooting and resolving complex technical issues with agility and precision.
- Mentored and trained junior engineers, promoting adherence to best practices and industry standards to elevate team performance.
Subject Matter Expert
Ericsson Global Services India Pvt Ltd
Bengaluru, India
10.2015 - 11.2018
- Managed a team of 18 L2/L3 engineers to ensure exceptional service delivery across client operations under strict SLAs.
- Led process governance and KPI monitoring, driving over 98% SLA compliance and boosting client satisfaction.
- Collaborated with global clients to design and implement network upgrades, enhancing performance and security posture.
- Conducted regular network and ITSM audits, recommending process improvements to enhance reliability and reduce downtime.
- Optimized resource allocation to consistently deliver projects within budget and defined scope.
Network Operations Specialist
AT&T Communication Services India Pvt Ltd
Bengaluru, India
12.2009 - 09.2015
- Led a team of 28 engineers in managing incident, change, and problem management processes to ensure uninterrupted services.
- Directed 24/7 Network Operations Center (NOC) operations supporting clients across the US, UK, and APAC regions.
- Designed performance dashboards and operational reports for management visibility and SLA compliance tracking.
- Served as escalation lead for major incidents, coordinating cross-functional response teams to restore services swiftly.
- Implemented data center network solutions and incident management processes per ITIL standards.
Network Engineer
Microland Pvt Ltd
Bengaluru, India
02.2008 - 12.2009
- Supported LAN/WAN implementations, configuration of routers and switches, and troubleshooting of client network issues.
- Delivered consistent support and maintenance services, ensuring network uptime and client satisfaction.
- Improved network performance by identifying and resolving bottlenecks and optimizing configurations.
- Provided end-user support by troubleshooting connectivity issues and advising on networking equipment usage.
- Performed root cause analysis on recurring network issues and implemented long-term solutions to increase network stability.
Education
B.E. - Bachelor of Engineering - Electronics and Communication Engineering (ECE)
Malaim Engg College, Anna University
Tamil Nadu04-2005
Skills
- Routing & switching
- Wireless LAN
- Firewall & security
- Load balancer configuration
- Cloud networking
- Network operations leadership
- ITIL incident management
- Change management
- Service level management
- Vendor & stakeholder management
- Network architecture
- Network automation
- Risk & vulnerability management
- Technical governance
- Project management
Certification
CCSP (Cisco Certified Specialist - Enterprise Core)
Timeline
Infrastructure Services Manager (Role – Network Delivery Manager)
DXC Technologies India Pvt. Ltd (Transitioned as Part of a Global Program From AT&T Global Network Services India Pvt. Ltd)
07.2021 - Current
Senior Specialist
AT&T Global Network Services India Pvt Ltd
11.2018 - 07.2021
Subject Matter Expert
Ericsson Global Services India Pvt Ltd
10.2015 - 11.2018
Network Operations Specialist
AT&T Communication Services India Pvt Ltd
12.2009 - 09.2015
Network Engineer
Microland Pvt Ltd
02.2008 - 12.2009
B.E. - Bachelor of Engineering - Electronics and Communication Engineering (ECE)
Malaim Engg College, Anna University
KEY ACHIEVEMENTS
- Elevated service delivery performance by 25% through automation and process optimization.
- Reduced incident backlog by 30% through proactive monitoring and trend-based problem management.
- Managed global IT operations across 150+ sites, maintaining a consistent 99.9% uptime.
- Delivered 20+ network migration and upgrade projects across multi-site environments.