Sishith Asok Ramvilla

About Sishith Asok Ramvilla

With over 22 years of experience in IT, I currently serve as the Head of Network Reliability Engineering, leading a global organization that unites architecture, engineering, and operations across Network, DevOps, SecOps, DDI, Compliance, and Observability. My mission is to build a secure, automated, and resilient network ecosystem that drives business agility, reliability, and innovation at scale.I manage an annual budget of approximately $25M, steering strategic investments in network automation, observability, and AI/ML-driven reliability engineering to modernize hybrid and multi-cloud infrastructures. Through Network-as-Code, CI/CD enablement, and intelligent telemetry, I’ve enabled faster delivery, enhanced compliance, and measurable efficiency improvements across enterprise programs.Throughout my career, I’ve been passionate about simplifying complexity, developing strong technical leaders, and fostering a culture of accountability and continuous improvement. My leadership approach blends strategic vision with deep engineering insight, ensuring that technology, people, and process all move in harmony toward delivering business value.At the core, I believe reliability is engineered, not assumed — and I’m committed to transforming traditional network operations into intelligent, self-healing, and policy-driven platforms that power digital transformation globally.

Experience

1. Head of Network Reliability Engineering (Senior Director)

   Marriott International

   Jul 2021 — Present · US

   As Head of Network Reliability Engineering at Marriott Global Network Team (Senior Director), I lead a global organization that unites architecture, engineering, and operations across five strategic domains — DevOps, SecOps, DDI, Compliance, and Observability. My charter is to build and sustain a secure, scalable, and intelligent network ecosystem that enables the business to operate with speed, trust, and resilience.With accountability for a $25M annual budget, I drive the modernization of network infrastructure through automation, AI/ML-driven insights, and “Network-as-Code” principles. By aligning engineering innovation with business priorities, I’ve advanced enterprise agility, reduced operational risk, and improved time-to-delivery for global initiatives spanning cloud, data centers, and edge environments.My leadership philosophy centers on empowering high-performing teams and simplifying complexity through automation and observability. I champion a culture of excellence, ownership, and continuous improvement, where innovation is data-driven, collaboration is borderless, and reliability is engineered into every layer of the network.I’m deeply passionate about transforming legacy operations into intelligent, proactive platforms that deliver measurable outcomes — from enhanced compliance posture and reduced risk exposure to faster digital transformation and improved customer experience.

Education

• NTTF (Nettur Technical Training Foundation)

  Bachelor's degree, Information Technology

  2000 — 2003

Skills

• Disaster Recovery
• Infrastructure
• Xml
• Troubleshooting
• Requirements Analysis
• Open Shortest Path First (Ospf)
• Team Leadership
• Clearquest
• System Deployment
• Itil
• Telecommunications
• Team Management
• System Administration
• Vendor Management
• Cisco Nexus
• Java
• Border Gateway Protocol (Bgp)
• Microsoft Certified Professional
• Microsoft Certified Technology Specialist
• IT Operations
• Agile Methodologies
• Management
• Microsoft Certified Solutions Associate
• Linux
• Sme in Solarwinds Network Monitoring Tool
• Vmware Certified Professional on Vsphere 5
• Snmp
• IT Service Management
• Test Planning
• Switches
• Networking
• Mcitp
• Unix