Enterprise NOC Engineer – ISP & Managed Network Services

Job Title: Enterprise NOC Engineer – ISP & Managed Network Services
Experience: 3–5 years
Department: Enterprise Network Operations
Shift: 24x7 rotational shifts
Reporting To: Enterprise NOC Manager / Shift Lead
About the Role
We are looking for a skilled Enterprise NOC Engineer to monitor, troubleshoot, and support enterprise connectivity services across a large-scale ISP network.
You will work on business-critical services such as Internet Leased Lines, Point-to-Point connectivity, Layer 2 circuits, MPLS-VPN, and managed SD-WAN. The role requires strong network troubleshooting skills, clear customer communication, and close coordination with field teams, service providers, and technical support teams to restore services efficiently.
Key Responsibilities
Monitor enterprise network services through NMS and monitoring tools for link-down alarms, packet loss, latency, jitter, interface errors, and device-health alerts.
Troubleshoot Layer 1, Layer 2, and Layer 3 connectivity issues across customer-premises equipment, provider-edge routers, optical links, and SD-WAN appliances.
Perform initial fault isolation using ping, traceroute, interface checks, log analysis, optical diagnostics, and loopback testing.
Investigate routing and switching issues involving BGP, OSPF, static routing, VLANs, QinQ, and MPLS-VPN services.
Coordinate with internal transmission, field-maintenance, and provisioning teams for fiber faults, physical-link issues, and on-site troubleshooting.
Liaise with external service providers, OEM support teams, and hardware vendors when escalation or replacement support is required.
Perform and validate circuit testing during provisioning, restoration, and service handover, including loopback, throughput, latency, jitter, frame-loss, and MTU checks.
Support RFC 2544 and ITU-T Y.1564 testing where required for enterprise circuit acceptance.
Create, update, and manage incident tickets with complete diagnostic details, circuit information, actions taken, and restoration updates.
Provide timely, professional outage communication and service updates to enterprise customer IT teams.
Assist in preparing incident summaries, RCA inputs, and service-performance reports.
Maintain accurate documentation for circuits, network topology, escalations, and operational handovers.
Required Skills & Qualifications
3–5 years of hands-on experience in an ISP, telecom, enterprise NOC, managed-services provider, or carrier-network environment.
Strong understanding of TCP/IP, Ethernet switching, IPv4/IPv6 subnetting, VLANs, QinQ, and basic MPLS-VPN concepts.
Working knowledge of BGP, OSPF, static routing, and core network troubleshooting.
Familiarity with Internet Leased Lines, P2P links, Layer 2 circuits, MPLS-VPN, and/or managed SD-WAN services.
Experience with network-monitoring tools, ticketing systems, and incident-management processes.
Familiarity with router, switch, firewall, or SD-WAN CLI environments from leading network-equipment vendors.
Basic understanding of optical connectivity, SFP/transceiver diagnostics, optical power levels, and fiber-fault coordination.
Strong written and verbal communication skills, with the ability to communicate clearly during customer-impacting incidents.
Willingness to work in 24x7 rotational shifts.
Diploma or bachelor’s degree in Electronics & Telecommunications, Computer Science, IT, or a related field.
Preferred / Nice to Have
Experience with tools such as PRTG, SolarWinds, SevOne, Zabbix, or equivalent monitoring platforms.
Exposure to RFC 2544, ITU-T Y.1564, OTDR testing, or enterprise circuit-acceptance testing.
Experience supporting SD-WAN, firewall, or managed security services.
CCNA, JNCIA, or similar networking certification.
What Success Looks Like
Prompt identification and ownership of enterprise network incidents.
Accurate troubleshooting and effective escalation to the appropriate support teams.
Clear, consistent communication with customers and internal stakeholders.
Reliable documentation, ticket hygiene, and contribution to timely service restoration.
Smooth handover of restored or newly commissioned services to operational teams.
If you enjoy solving complex connectivity issues and supporting enterprise customers in a fast-paced network-operations environment, we’d like to hear from you.

Work arrangement
No