Harikrishnan S Unnithan

Performed DWDM network design encompassing Method of Procedures (MOP), Network drawings (MS
Visio), Cable Schedule, Bill of Materials (BOM), Change Requests (CR), Pricing, Shipment Request,
Manpower and Logistics requirements.
Provisioned, configured, commissioned and tested coherent and non-coherent DWDM systems according
to customer requirements and design specifications.
Executed high-complexity live service migrations, rerouting, traffic grooming, and decommissioning
activities, ensuring network stability.
Troubleshoot issues during service provisioning and unexpected network outages to restore services
effectively.
Supervised field engineers and contractors ensure site surveys, installation, provision and migration
activities are performed according to company and industry standards.
Collaborated with various teams including IP network, Power & Infrastructure, Site Access, Service
Organization and Logistics to ensure timely project delivery.
Prepared, reviewed, and updated post-activity documentation as per the SLA standards.
Coordinated with the Project Manager for proper handover of services to the customer.

Planned, designed, installed, commissioned, operated, and maintained 100G fiber optic transmission
network of DWDM/OTN systems.
Provisioned and commissioned 80 channels of Fixed Grid/Flex Grid ROADM solutions based on network
wavelength requirements.
Configured ASON protection solutions based on network resource availability and protection demands.
Planned DWDM network wavelength and bandwidth utilization based on existing network capacity and new
service demands.
Developed technical solutions and action plans for service migrations on DWDM systems during network
implementation and expansion.
Configured, provisioned, and tested new services on the DWDM network.
Reviewed and finalized technical design documentation, including HLD, LLD, and pricing migration plans for
fiber optic transmission networks.
Provided onsite and remote support for site surveys, network provisioning, and complex migration activities.
Coordinated and managed vendors and subcontractors to ensure proper project delivery.

Operated and maintained Huaweis 100G DWDM/OTN Network (OSN 9800, OSN 8800, OSN 1800 V).
Oversaw the design and expansion of the 100G DWDM network.
Conducted capacity planning and management of available and utilized bandwidth on DWDM networks.
Provided technical support for diagnosing and resolving issues within a 40-channel ROADM network.
Developed and implemented contingency plans in the event of network failure.
Monitored and implemented network precautions to ensure stability.
Conducted optical link loss budget analysis and management for the 100G DWDM networks.
Optimized optical power to achieve efficient and effective OSNR values.
Supported onsite operations and maintenance of the 100G DWDM Network.
Developed and maintained technical documentation and database information for the DWDM network.
Planned and executed network upgrades based on recommendations from R&D.
Initiated and coordinated Method of Procedures with R&D and TAC for troubleshooting.

Installed, commissioned, and maintained 40-channel 10G DWDM systems.
Monitored 10G DWDM Systems 24/7 through NMS.
Configured and tested NEs within EMS.
Ensured maintenance of OSNR values to stabilize DWDM networks.
Provided remote support to field engineers.
Implemented and administered NMS connectivity for the 10G DWDM.
Conducted acceptance testing for 10G DWDM systems.
Tested SDH, OTN, 1.25-Gigabit Ethernet, and 10-Gigabit Ethernet cards.
Performed on-field fault rectification of DWDM systems.
Cleared major and minor alarms within the DWDM network.