Description

Transport Surveillance L3 / SME
Key Responsibilities

Transport Surveillance and Restoration

- Monitor and analyze alarms through Assure1, ZDAF, vendor EMS/NMS and Salesforce.
- Perform L3 troubleshooting across DWDM, CWDM, OTN, SDH/SONET, Carrier Ethernet and optical backhaul networks.
- Troubleshoot LOS, LOF, AIS, RDI, OTU/ODU defects, BER/FEC errors, optical-power degradation, communication failures and repetitive alarms.
- Analyze Rx/Tx power, span loss, OSNR, Q-factor, BER/FEC, protection status and performance counters.
- Identify whether the fault resides with the network element, fiber span, card/port, OSP, field cabling, power, software or upstream/downstream network.
- Coordinate restoration with Transport Engineering, IP Network, Field Operations, OSP, Event Management and vendor teams.
- Support traffic rerouting, protection switching, circuit grooming, cross-connect validation and emergency restoration.
- Lead technical troubleshooting during major outages, bridges and war-room discussions.
- Review noisy nodes, repetitive alarms and Top-Talker spans and recommend permanent corrective actions.

TAC and Advanced Technical Support

- Act as the internal escalation point for complex incidents that cannot be resolved by L1/L2 Transport teams.
- Collect and analyze:
- Device and system logs
- Alarm histories
- Software and firmware versions
- Card and controller status
- Configuration differences
- Crash, process or communication logs

- Identify known software defects, hardware compatibility issues and platform limitations using OEM documentation and release notes.
- Validate software upgrade paths, hardware compatibility, licenses, storage, configuration backups and rollback readiness.
- Recommend software upgrades, patches, configuration changes, card replacement or RMA based on technical findings.
- Support failed software upgrades, partial card upgrades,



controller synchronization issues and rollback activities.
- Review and validate MOPs, pre-checks, post-checks, rollback plans and maintenance-window readiness.
- Open and manage technical cases with Ciena, Nokia, Infinera, ADVA/Adtran, Cisco or other OEM TAC teams.
- Provide complete logs, topology details, impact analysis and troubleshooting evidence to OEMs.
- Track vendor TAC cases until a permanent resolution, patch, workaround or hardware replacement is delivered.
- Support testing and validation of vendor-recommended fixes before implementation in the production network.
- Maintain a knowledge base of known defects, workarounds, upgrade recommendations and recurring platform issues.

Technical Skills

Technologies

- DWDM, CWDM, OTN, SDH and SONET
- ROADM, WSS, EDFA/Raman amplification
- Transponders, muxponders and optical line systems
- OTU/ODU mapping and Carrier Ethernet services
- Optical power, span loss, OSNR, BER, FEC and Q-factor
- Protection mechanisms such as 1+1, SNCP/MSP and OTN/ROADM protection

Platforms

Hands-on experience with at least two of the following:

- Ciena 6500, RLS or Waveserver
- Nokia 1830 PSS
- Infinera optical platforms
- ADVA/Adtran FSP 3000 or FSP 150
- Cisco NCS optical platforms

Tools and Systems

- Assure1, ZDAF, Netcool or equivalent alarm-correlation tools
- Salesforce, ServiceNow or equivalent ITSM platforms
- Ciena MCP/OneControl, Nokia NSP/WaveSuite and equivalent vendor EMS/NMS
- Linux/Unix and CLI troubleshooting
- TL1, SNMP, NETCONF or RESTCONF
- Wireshark and log-analysis tools




- Basic Python, SQL, PowerShell or automation knowledge preferred

Experience and Qualifications

- Bachelor’s degree or diploma in Electronics, Telecommunications, Electrical Engineering, IT or a related discipline.
- 5–8 years of Transport/Optical NOC experience for an L3 Engineer.
- 8+ years for an SME/TAC-level role.
- Strong experience supporting carrier-grade telecom or ISP networks.
- Experience handling major incidents, software upgrades, vendor escalations, RCA and field coordination.
- Ability to work independently in a 24x7 rotational setting.

SME and Leadership Expectations

- Mentor and coach L1/L2 Transport engineers.
- Review troubleshooting quality, restoration decisions and RCA accuracy.
- Conduct technical training and knowledge-sharing sessions.
- Develop SOPs, MOPs, troubleshooting guides and escalation playbooks.
- Present recurring issues, platform risks and improvement plans to management and stakeholders.
- Maintain detailed technical records for future troubleshooting and operational continuity.

Key Performance Indicators

- Accuracy and timeliness of alarm validation and fault isolation
- Restoration and escalation turnaround time
- Reduction in repetitive and noisy alarms
- Quality of TAC case submissions and vendor follow-up
- Software-upgrade and rollback success rate
- RCA and permanent-fix completion
- Investigation-backlog reduction
- Technical ticket and documentation quality
- Improvement in L1/L2 capability through coaching
- Reduction in repeat platform, software and hardware incidents

Ideal Candidate

The ideal candidate is a hands-on L3 Optical Transport Engineer with TAC-level troubleshooting capability, able to restore live services, analyze complex software and hardware failures, manage OEM escalations and drive permanent resolution of recurring network issues.

📌 Senior Process Manager (Mumbai)
🏢 eClerx
📍 Mumbai