Technical Support Back Office

M A J I D

R I S M A N K A R Z A D E H

Experienced Network Engineer with solid expertise in access, transport solutions, and data center network infrastructure. Proven track record of contributing to major industry vendors. Proficiently operated in technical support, operational, and engineering roles for leading network operators within expansive environments. Played a key role in managing essential projects involving deployment, modernization, expansion, and swap. Effectively collaborated across back-office and field functions as a pivotal resource. Committed to upholding policies and protocols to consistently attain targets aligned with service and operational level agreement. SUMMARY OF QUALIFICATIONS

• Extensive knowledge of IPv4/v6, WAN/LAN, IP/MPLS, VPN L2/L3, IPsec, VXLAN, EVPN, Routing protocols (OSPF, BGP)

• Hands on experience in network design, configuration, implementation, and troubleshooting (Switches and Routers). Product type: Nokia 7750 SR, 7705 SAR, Cisco ASR, Catalyst, Nexus, Juniper EX3200/EX4300, HPE (Aruba), Fortinet

• Experience with Linux (bash/scripting), Python, DevOps tools such as Ansible, Gitlab/CICD, Docker Desktop, VSCode.

• Extensive Experience in network management, monitoring, diagramming tools. Product type: Nokia SAM, NetAct, Zabbix, Cisco Prime, Cisco ACI, PRTG, NetCracker, MapInfo, Visio.

• Knowledge and hands on experience on implementing network security and virtualization technologies. Application type: Firewalls (Palo alto, FortiGate), SD WAN, SDN, VMware ESXi and hypervisor management PROFESSIONAL EXPERIENCE

SENIOR NETWORK DESIGN ENGINEER

Nokia Dallas, TX (Capgemini)

JUNE 2021- PRESENT

T-Mobile Data Center Project :

• Design leaf and spine underlay network utilizing BGP/eBGP for routing, EVPN, VXLAN for overlay network segmentation, and VTEP for traffic encapsulation, enabling multitenancy to support isolated tenant networks within a shared infrastructure.

• Developed and implemented automated scripts using Ansible and Python for network device configurations, maintaining and modifying YAML and Jinja2(.j2) files as part of a CI/CD pipeline. TELLUS Communication Project:

• Configure both cell sites router, aggregation and edge/core routers to enable protocols and services such as MPLS, BGP, OSPF, VPLS and VPRN, establishing backhaul connectivity for LTE, 5G, small cell nodes. (Nokia 7750, Cisco ASR, Juniper)

• Create Method of Procedure (MOP) for field technicians work activities, including tasks such as cell site Microwave cutover activity, and initial router /switches configuration.

NETWORK ENGINEER (Design and Managed Service)

Bearcom North York, ON

MAY 2020- JUNE 2021

• Designed and implemented network connectivity by utilizing OSPF as the routing protocol and implementing IP/MPLS services like VPLS and IES for 2-way wireless communication LMR stations and security systems.

• Configured VPN tunnels, EOIP, L2TP/PPTP services on Cisco, MikroTik and FortiGate routers.

• Configuring Zabbix and PRTG monitoring platforms for all network IP devices (SNMP traps, NTP, Topologies, Alarms, etc.).

• Maintained, upgraded and migrated VM servers on VMware vSphere, which included both Windows and Linux systems.

• Troubleshooting all network outages according to the escalation procedures and create RCA report to improve SLA accordingly. TIER II RAN ENGINEER / TEAM LEAD

Freedom Mobile Toronto, ON

MAR 2019- MAR 2020

• Implemented protocols and services such as OSPF, MPLS LDP, RSVP, VPLS, VPRN, EPIPE, and IES on Nokia 7750 SR, 7705 SAR, Cisco ASR903, and hiD 6610/6615 as per the IP engineering work order plan.

• Monitored and resolved assigned trouble tickets using network logs, call flows, counters, NetAct monitor, BTS site manager, Tektronix, and NSP application, resolving issues like X2, E-RAB, and Paging failures in radio access.

• Monitored and troubleshooted ACI fabric, using real-time telemetry and analytics to ensure optimal performance and quick resolution of issues

Toronto, Ontario

+1-905-***-**** *****.*********@*****.***

MAJID RISMAN KAR ZADEH +1-905-***-**** *****.*********@*****.*** NETWORK SPECIALIST (OPERATION VIDEO CORE AND SERVICE QUALITY WIRELESS) Rogers Communications Brampton, ON

MAR 2017- FEB 2019

• Scripted and executed Linux (bash) commands on Cisco Embedded Controllers according to the MOPs.

• Created maintenance templates by gathering MAC and IP addresses from nodes on QPSK, categorizing them based on region and Phub for streamlined maintenance purposes.

• Performed digital video network configuration, performance checks, and troubleshooting for IP Direct and DAVIC STBs.

• Conducted testing and validation of all voice and data services (VOLTE/VOWIFI/VOIP, LTE, 3G) before and after network change tickets using a test call matrix, NetScout and Tektronix platforms.

• Collaborated with RF, Transport, IP/MPLS, VAS, UPPC, and Core/IMS teams to address network service quality issues. NETWORK SPECIALIST (RAN)

Nokia Ontario, British Columbia

FEB 2015- JAN2017

• Configured service aggregation routers Cisco 9903/4 ASR, Nokia 7705 SAR and radio terminal (Microwave MPR 9500)

• Commissioned Nokia Flexi Multi Radio Base Station (FSME/F, NodeB, eNodeB) to enable seamless support for LTE and UMTS/HSPA+ technologies, ensuring high-performance mobile broadband and optimized network capacity.

• Implemented ring topology using microwave radio links and optical fiber links, incorporating Ethernet for data transport and ensuring robust network resilience and redundancy.

• Implemented and configured DWDM systems (Nokia PSS), ensuring precise optical alignment and channel setup, followed by OTDR testing to validate signal integrity and system performance. MULTIPLE POSITIONS:

REGIONAL MANAGER, TRANSPORT, WIRELESS, OPERATION ENGINEER (SOLUTION) Ericsson System and Service & Huawei Technology

SEP 2006 – JULY 2014

• Took end-to-end fault management responsibility for network maintenance, ensuring trouble tickets are actively managed until resolution within agreed SLA (Used Remedy platform as ticketing system).

• Supervised and managed a team of professionals, including 65 Technicians in 4 Province, vendors and Contractors.

• Analyzed network KPI parameters, generated by FACTS platform for network optimization.

• Followed up major service outages, ensured that the planned outages are carried out or rolled back properly and provided Root cause Analysis report accordingly.

• Performed radio terminal Commissioning and Ethernet configuration VLAN, IP over Iub, implementation (Mini-Link TN /SP).

• Performed commissioning and integration for Ericsson RBS (2000, 3000, 6000) and transmission node (Mini Link TN).

• Created E1/T1/ STMs cross connection plan for all transport links. Designed ODF and patch panels for all fiber termination.

• RBS alarms rectification such as VSWR, RX diversity, TRX block, RF loop test fault, PCM synch fault, etc.

• Quality acceptance, planning, monitoring, testing and inspection of TI installation. EDUCATION:

Data Science program, McMaster University (Ontario, Canada). Electrical Engineering (B.Sc.), Azad University (Assessed by World Education Service in Canada). PROFESSIONAL COURSE AND CERTIFICATE:

Nokia Network Routing Specialist I Certificate (2024, Nokia-Toronto, Canada). Nokia 7750 SR, 7705 SAR, MPR, mcRNC (2019, Nokia Training -Toronto, Canada). Nokia Flexi Multi Radio NodeB /eNodeB Commissioning (2015, Nokia-Toronto, Canada). GSM RBS 2000 & 3000, Mini-Link &RBS Installation, configuration, troubleshooting Site maintenance (2009, Ericsson training center). COMPUTER SOFTWARE SKILLS:

Visual Basic, Matlab, Python, Mapinfo, Ansible, Pathloss. SQL, Power Bi Microsoft Office (Word, Excel, Power Point), Linux (Scripting), Windows and Mac OS, VISO

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