Network Engineer

Job Description This role will be based at client site. Network Engineer is responsible for supporting and maintaining mission-critical Wireless network infrastructure. The role involves troubleshooting, maintenance, incident response, preventive maintenance, implementation activities, vendor coordination, and support for large-scale wireless environments operating in a 24/7 environment. Job Responsibilities • Support day-to-day operations of wireless infrastructure including Cisco Wireless solutions, Aruba solutions, switches, firewalls, captive portals, and authentication systems. • Perform troubleshooting for Wireless connectivity issues, DNS, DHCP, captive portal access, OTP login issues, VLAN routing, authentication failures, and internet access problems. • Manage service technical escalations and support major incident troubleshooting during service disruptions. • Support preventive maintenance, firmware upgrades, patching, and technology refresh activities for wireless and network infrastructure. • Support WLC upgrade activities including Access Point image updates, failover testing, rollback planning, and validation activities. • Work closely with vendor TAC such as Cisco TAC and Aruba TAC for issue analysis and problem resolution. • Perform root cause analysis (RCA) and prepare incident reports, technical findings, and preventive recommendations. • Support implementation activities including Access Point deployment, switch replacement, firewall migration, SSL certificate updates, and network migrations. • Coordinate with stakeholders, vendors, contractors, and facility management teams during maintenance and implementation activities. • Support testing activities such as congestion testing, failover testing, WiFi roaming optimization, and POE/network validation. • Monitor infrastructure health using tools such as Catalyst Center, AirWave, SevOne, LogicMonitor, NetAlly. • Fluent in ITSM Incident, Change Management, Service Request platforms such as ServiceNow. • Maintain technical documentation including install plans, diagrams, inventory records, validation evidence, and maintenance reports. • Support after-office-hour maintenance windows, standby support, and emergency troubleshooting activities. • Ensure compliance with operational governance, safety requirements, and change management procedures. Qualifications • Diploma or Degree in Information Technology, Computer Engineering, Network Engineering, or related field. • Minimum 3–5 years of hands-on experience in network and wireless infrastructure support. Strong knowledge of: • Cisco Wireless LAN Controllers (WLC) • Aruba Wireless solutions • Switching and routing technologies • Firewalls and network security concepts • DNS, DHCP, VLANs, and authentication systems Experience with monitoring and management tools such as: • Cisco Catalyst Center • AirWave • SevOne • ServiceNow • Familiarity with incident management, RCA preparation, and maintenance support processes. • Experience supporting enterprise or mission-critical environments is an advantage. • Good troubleshooting, communication, and stakeholder coordination skills. • Ability to work independently and support after-hours maintenance activities when required. Preferred Certifications • Cisco Certified Network Associate (CCNA) • Cisco Certified Network Professional (CCNP) • Aruba Certified Mobility Associate/Professional • ITIL Foundation Certification Work Arrangement • Onsite support role • May require standby support, shift work, and after-office-hour maintenance activities depending on operational requirements.