Sr DomainTechnical Architect

Job description

Job Summary We are seeking an experienced Network Reliability Engineer (NRE) with strong expertise in enterprise networking, security technologies, operational governance, and service reliability. The ideal candidate will be responsible for maintaining highly available network services, driving operational excellence, leading incident resolution for critical outages, and implementing automation initiatives to improve network performance and stability. The role requires hands-on experience with Cisco and Aruba networking technologies, network security platforms, and the ability to manage and resolve Priority 1 (P1) and Priority 2 (P2) incidents while ensuring adherence to governance, compliance, and service management standards. Key Responsibilities Network Operations & Governance • Provide operational leadership and governance for enterprise network services. • Ensure network availability, reliability, performance, and security across global environments. • Establish and maintain operational processes, standards, SLAs, KPIs, and service improvement initiatives. • Drive incident, problem, and change management processes in alignment with ITIL practices. • Conduct service reviews, governance meetings, and operational reporting with stakeholders. • Lead vendor coordination and escalation management for critical service issues. Incident & Problem Management • Act as technical lead during major incidents and service outages. • Drive swift resolution of P1 and P2 incidents through effective troubleshooting and stakeholder communication. • Perform root cause analysis (RCA) and implement preventive measures. • Identify recurring issues and drive permanent fixes through problem management processes. • Ensure effective communication during critical outages and service restoration activities. Technical Network Operations • Manage enterprise LAN, WAN, wireless, and network security infrastructure. • Design, implement, and support routing, switching, and connectivity solutions. • Monitor network health, availability, and performance. • Manage network capacity planning, forecasting, and optimization initiatives. • Support network transformation and modernization projects. Network Security • Manage and support network access control and security solutions. • Ensure adherence to security policies, standards, and compliance requirements. • Collaborate with security teams to identify and mitigate network vulnerabilities. • Support firewall policies, VPN services, remote access solutions, and segmentation initiatives. Automation & NRE Practices • Drive network automation and reliability engineering initiatives. • Develop and implement automation solutions for monitoring, configuration management, compliance validation, and operational tasks. • Improve operational efficiency through scripting and Infrastructure-as-Code concepts. • Support observability, proactive monitoring, and self-healing capabilities. • Automate repetitive tasks to reduce operational risk and improve service reliability. Skill Requirements Required Technical Skills Core Technologies • Cisco DNA Center (DNAC) • Aruba Central • Cisco ISE (Identity Services Engine) • Enterprise Wired Networking • Enterprise Wireless Networking • LAN/WAN Technologies • Routing and Switching • Network Access Control (NAC) • VPN and Remote Access Solutions • Network Monitoring and Management Tools Network Security Skills • Firewall Management • Network Segmentation • Secure Remote Access • Access Control Policies • Network Security Architecture • Threat Identification and Mitigation Key Skills • Enterprise LAN/WAN Management • Routing and Switching • Wireless Networking Technologies • Firewall and Network Security Concepts • Capacity and Performance Management • Strong Troubleshooting and Analytical Capabilities • Incident and Problem Management • Operational Governance and Service Management • Stakeholder Management • Vendor Management • Automation and Process Optimization • Root Cause Analysis (RCA) • Continuous Service Improvement • Certification of CCNP is minimum requirement • Operate from customers location Other Requirements Preferred Technologies • Cisco Networking Technologies • Palo Alto Networks • Fortinet • Aruba Networks • VPN and Remote Access Solutions • Cisco DNA Center • Aruba Central • Cisco ISE Automation (Preferred) Experience in one or more of the following is considered an advantage: • Python • Ansible • REST APIs • Cisco Automation Frameworks • Network Configuration Management Tools • Infrastructure as Code (IaC) • AIOps and Network Observability Platforms • Automation of Incident Response and Network Operations Apply now Information at a Glance Why HCLTech? At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first. HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion. Disclaimer Privacy Statement Terms of use Sitemap Raise a Grievance We use cookies on our site. Please read more about cookies policy here. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a new tab. 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