Lead Architect - Network Engineering & Data Infrastructure

Lennox India Technology Centre (LITC); Chennai; On-site; INR 4,000,000 - 6,000,000; Full time

Job summary

Lennox India Technology Centre (LITC) in Chennai seeks Lead Architect Network & Data Infrastructure to own end-to-end architecture, governance and evolution of enterprise network platforms across LAN, WAN, SD-WAN and wireless, aligning with security standards and business goals.

You will act as design authority for complex network and security challenges, drive modernization, performance optimization and vulnerability management, and mentor senior engineers while coordinating with operations,

Qualifications

• 15+ years of progressive experience managing and architecting enterprise-scale network environments.
• Experience operating at architect or senior design authority level.
• Bachelors degree in Computer Science, IT, or related field; relevant certifications may substitute.

Responsibilities

• Own end-to-end network & data infrastructure architecture, governance and evolution.
• Define scalable, secure, and resilient designs across LAN, WAN, SD-WAN and wireless.
• Lead architecture reviews and provide technical direction for Cisco and Aruba solutions.
• Act as final escalation authority for complex network incidents and RCA ownership.
• Collaborate with operations, security and application teams to minimize downtime.

Skills

Enterprise network design

Cisco switching

Cisco routing

Aruba wireless

OSPF

EIGRP

BGP

Network security

Vulnerability mgmt

Monitoring tools

Automation scripting

Education

Bachelor's degree in CS/IT

Tools

Rapid7

Nessus

Qualys

SolarWinds

PRTG

Fluke

Scripting tools

Job description

Role & responsibilities

We are seeking a Lead Architect Network & Data Infrastructure to own the endtoend architecture, governance, and evolution of enterprise network platforms. This role is responsible for defining scalable, secure, and resilient network architectures across LAN, WAN, SDWAN, and wireless domains, while ensuring alignment with business objectives, security standards, and operational excellence. The ideal candidate brings deep handson expertise combined with strong architectural judgment, acting as the design authority and senior escalation point for complex network and security challenges. This role plays a critical part in driving modernization, performance optimization, and proactive vulnerability management across the enterprise.

Architecture & Design:

• Define and own enterprise network architecture standards, reference designs, and technology roadmaps across LAN, WAN, SDWAN, and wireless platforms
• Lead architecture design reviews and provide technical direction for Cisco and Arubabased solutions
• Translate business, application, and security requirements into scalable and resilient network designs

Network Engineering & Optimization:

• Design, deploy, and optimize highavailability network solutions using Cisco and Aruba technologies
• Architect and govern dynamic routing strategies (OSPF, EIGRP, BGP) to ensure performance, resiliency, and scalability
• Architect and optimize Aruba wireless platforms for enterprisegrade mobility and seamless user experience
• Operational Excellence & Incident Leadership
• Act as the final escalation authority for critical and complex network incidents
• Lead root cause analysis (RCA) for major incidents and drive corrective and preventive actions
• Collaborate with operations, security, and application teams to minimize downtime and improve MTTR

Security & Vulnerability Governance

• Architect network security controls aligned with enterprise security frameworks and industry best practices
• Oversee vulnerability identification, remediation strategy, and lifecycle management using tools such as Rapid7, Nessus, or Qualys
• Ensure patching, hardening, and compliance with security, QoS, and regulatory standards

Monitoring, Automation & Continuous Improvement

• Define monitoring and observability standards using tools such as SolarWinds, PRTG, and Fluke
• Drive network performance analytics, capacity planning, and continuous optimization initiatives
• Promote and guide network automation and standardization to improve reliability and operational efficiency

Documentation, Reporting & Stakeholder Engagement

• Maintain architecture documentation, standards, and design artifacts
• Provide executivelevel reporting on network health, risk posture, vulnerabilities, and improvement initiatives
• Mentor senior engineers and influence crossfunctional teams without direct authority

Preferred candidate profile

• Bachelors degree in Computer Science, IT, or related field (relevant certifications may substitute).
• 15 + years of progressive experience managing and architecting enterprisescale network environments
• Demonstrated experience operating at architect or senior design authority level

Technical Skills

• Advanced expertise in Cisco switching, routing, wireless, and SDWAN platforms
• Strong command of OSPF, EIGRP, and BGP in largescale environments
• Deep knowledge of Aruba wireless architectures and optimization techniques
• Experience with vulnerability management and security assessment tools
• Proficiency with enterprise network monitoring and performance tools
• Exposure to network automation frameworks and scripting

Soft Skills

• Strong analytical and problemsolving mindset with architecturelevel thinkin
• Ability to communicate complex technical concepts to technical and nontechnical stakeholders
• Proven leadership during highseverity incidents and transformation initiatives
• Ability to work independently while influencing crossfunctional teams

Key Competencies

• Enterprise network architecture & design governance
• Proactive risk, performance, and vulnerability management

  Key Competencies

  • Enterprise network architecture & design governance
  • Proactive risk, performance, and vulnerability management
  • Incident leadership and decisionmaking under pressure
  • Continuous learning and adoption of emerging network technologies

  Certifications (Preferred)

  • Cisco Certified Network Professional (CCNP)
  • Aruba Certified Mobility Associate (ACMA)
  • Aruba Certified SD-WAN Deployment Professional (ACSDP)
  • CCIE is a plus