NIMESH BABU
Kochi
Summary
Seeking a good position in the telecom/communication field to contribute towards career enhancements with an organization of high repute.
Qualified B.Tech. in Electronics and Communication Engineering from Calicut University. Keywords: EPC, Volte, WCDMA, GSM, CDMA, GPRS, EDGE, UMTS. Exceptional communication, collaboration, and team-building skills, with proficiency at grasping new technical concepts quickly and utilizing them in a productive manner.
Overview
14
14
years of professional experience
Work History
Sr. Specialist Engineer – Core Network (IP & Mobile Data Core)
Gadgeon Smart Systems Pvt Limited
09.2023 - Current
- Managing, operating, and providing L3 support for MVNO Networks in Europe for the client 'Kore Wireless,' ensuring seamless network performance and customer satisfaction
- Overseeing the administration of MPLS Routers, Switches, Firewalls, DNS, GGSN, PGW, and GTP Proxy, maintaining optimal network functionality and security
- Collaborating with cross-functional teams to plan and execute traffic migrations between different platforms as per operational needs, minimizing downtime and disruptions
- Providing on-call support for critical incidents, demonstrating adaptability and commitment to resolving issues promptly.
HSI Core Engineer
Reliance Jio Infocomm Ltd
10.2016 - 09.2023
- Handling Reliance Jio 5G, EPC, IOT & IMS network roll out and operational support for Kerala circle
- Deployment Support and Operational support of Jio AMF, SMF, UPF and Samsung CIOT MME, vMME, vGWC, vGWU, CMS, MME, SAEGW, Nokia IMS, ALLOT TERA DPI, TEKTRONIX G10Probes, TD140, VSS and CSM nodes in Kerala
- End-to-end support for Installation, commissioning, integration and Acceptance activities
- Performing and ensuring the Routing Preventive Maintenance of NEs of the Network
- L2 troubleshooting with the support of NOC team to ensure network health, 100% network availability and error-free network
- Daily Network KPI analysis
- Support for Core Network upgrade pre- and post-tests
- EPC / IMS Call flow analysis and Trouble ticket resolution with in the SLA
- Conducting detailed ATP test of MME, SGW and PGW with vendor and signing off
- Point of Contact for HSI/VVM customer complaints and rectification within TAT.
Senior Engineer
Ericsson India Global Services PVT LTD.
06.2015 - 10.2016
- Responsible for daily operations, maintenance and service level administration of Huawei, Cisco and Ericsson packet core entities (SGSN, GGSN, MME, S/PGW, PCRF, CG and DNS) of Bharti India 2G-3G and 4G networks
- Analyzing and troubleshooting issues in all packet core elements (SGSN, GGSN, PCRF, CG & DNS)
- Second-level support to circle, 1st-level Level Assurance (NOC) and FM team for all GPRS-related problems
- Resolving trouble tickets (TTs) created by NOC team for deviations in GSNs and Value-Added Services such as GPRS, MMS, BlackBerry services, etc
- Handling service outages or critical failures during BSC/RNC/DNS/eNodeB/HSS/MBC/VLR
- Integration of new nodes: OCS, PCRF, HSS, BSC, RNC, eNodeB, AAA, WAP-gateway, CG, DNS and NTP
- Emergency configuration changes to restore services
- Providing RCA to regional team and performance management team to maintain the GPRS KPI targets
- Strong concepts in Huawei DPI like header enrichment, redirection, etc
- Handling subscriber issues related to GPRS and providing analysis or resolution measures
- Providing 2nd-level support for bulk attachment and session failures and international roaming issues
- Resolving fraudulent GPRS usage and revenue assurance cases reported by customer
- Routine Health check-ups and monthly level-2 preventive maintenance of the nodes
- Supporting design team during new implementation and assisting field team in new hardware installation
- Performed the acceptance test and got service handover for 4G expansion of all Huawei SGSNs, GGSNs, and NTP servers (for datacom and packet core) in all south circles from the vendor deployment team.
M2M L2 Engineer
WIPRO INFOTECH India Pvt. Ltd
03.2014 - 05.2015
- Giving configuration support for M2M enterprise solution
- Dealing with and resolving problems and issues which arise for M2M customers
- Monitoring and reporting on standards and performance targets
- Working with MPLS, GGSN/SGSN, GDSP AAA, Elite Core AAA, MPBN, and M2M L1 team to deal with the issues
- Daily, weekly and monthly report are published to higher management
- Analyzing the trace logs from SGSN/GGSN, DIAMETER and RADIUS logs from GDSP AAA and Elite Core AAA
- Supporting the entire Vodafone M2M customer (currently 2000+) as per the solution (location tracker, smart metering, telemetric, remote asset management via GPRS, etc) given by analyzing their requirement
- Tracking all the troubleshooting cases and creating knowledge library
- L2 support for all M2M enterprise on boarding cases.
PDSN SME
ZTE India Pvt. Ltd
02.2012 - 03.2014
- Troubleshooting the issues involved in PDSN and related NEs
- Configuration of ASR1002 router, Cisco 3750 switches and ZTE 8908 switches
- Knowledge of Gy, Gx, RADIUS, and GTP Link Interfaces
- Managing and Configuring the PCRF, SPR and New PCRF market plans
- Managing and monitoring Elite Core AAA server -services and ZTE RAN-AAA Server
- 1x/EVDO (HSD), WAP and BREW services troubleshooting and Customer Complaint Resolution
- Regular Health checkups of all PDSN network elements like Check Point FW, CG, PDSN, AAA, NTP, DNS, PCRF and SPR
- Configuration of new Diameter links, PCF IPs and updating DPI in ZTE PDSN
- Version upgrade of Core NEs (Check Point FW, CG, PDSN, AAA, NTP, DNS, PCRF and SPR)
- KPI validation.
Packet Core Engineer
Alcatel-Lucent India PVT LTD. (ALUMS)
06.2010 - 01.2012
- Handling Cisco CGSN-ST16/ASR5000, Huawei SGSN9810, and Huawei GGSN 9811
- Alarm monitoring and Troubleshooting for 2G and 3G Packet Core Nodes (CGSN-ASR-5000)
- Interaction and support to all circles during configuration/testing activity (i.e
- For Gb link configuration, RAC, LAC creation in SGSN, and new APN configuration in GGSN
- Customer Complaint Resolution
BSS Engineer
ZEQUEL Technologies (I) Pvt. Ltd.
08.2009 - 06.2010
- O&M of BTS sites for Kerala Circle
- Identification of BSS Hardware problems from statistics
- Supporting and coordinating the field engineers for planning and testing the Daily KPIs monitoring of the network
- Optimization recommendations to improve KPIs
- Giving technical support to field engineers.
Skills
- Samsung
- SPC3000 (MME), SPG3000 (SAEGW)
- Huawei
- USN9810 (SGSN/MME), UGW9811 (GGSN/PGW/SGW), DNS9816, CG9812
- Cisco
- ASR5000 (xGSN, xGW)
- Ericsson
- SGSN-MME (MkVI, MkVIII), EPG (M120, M320, SSR), IPWorks DNS
Academia
Electronics & Communications, 2009, MES College of Engineering, University of Calicut, Kuttippuram, Kerala, India, 2004, V.P.M.S.N.D.P. Higher Secondary School, Kazhimbrum, Kerala, India, 2002, S.N.G.S.H.S, Karamuck, Kerala, India
Technical Competence - Knowledge
- Good hands-on & knowledge of 5G, EPC, IOT, IMS and all related interfaces (5G NR network interfaces, S1-MME, S6a, S11, S5/S8, S1-U, S4, S10, SGi etc.) and protocols.
- Deep knowledge of GPRS call flow and all related interfaces (Gb, IuPS, Gr, Gn, Gx, Gy etc.) in packet core network and protocol stack on these interfaces.
- Good experience in subscriber payload traces inspection using IRIS Session analyzer & Wireshark.
- Strong Working experience in Vendor Tools like Huawei M2000, U2000, Web GUI, Cisco WEMS, ZTE-Netnumen, Lucent-Netterm, MOTO, ALU.
- Knowledge in PDSN and packet core (SGSN, GGSN, CGSN) Equipment’s.
- X browser for DNS, NTP, CG, SPR, EMS and PCRF.
- Knowledge in ZTE PDSN, SPR & PCRF Equipment’s and interfaces.
- Familiar with tools TTI server (NETKT), Remedy user, Lotus notes, outlook etc….
- Concepts of SQL, LINUX & Unix
- Networks/Protocols: TCP/IP, IPV4, IPV6, DNS, DHCP, FTP, TELNET, Radius, Diameter, PPP & MIP.
Personal Information
- Passport Number: H4807103
- Father's Name: Suresh Babu. C.R
- Date of Birth: 02/02/87
- Marital Status: Married
Pan Card No
AKGPN9474P
Languages
- English
- Hindi
- Malayalam
- Tamil
Hobbies and Interests
- Listening music
- Playing Cricket & football
- Travelling
Disclaimer
I, hereby declare that the above-mentioned information is correct to best of my knowledge and belief. I bear the responsibility for the correctness of the above-mentioned particulars.
Timeline
Sr. Specialist Engineer – Core Network (IP & Mobile Data Core)
Gadgeon Smart Systems Pvt Limited
09.2023 - Current
HSI Core Engineer
Reliance Jio Infocomm Ltd
10.2016 - 09.2023
Senior Engineer
Ericsson India Global Services PVT LTD.
06.2015 - 10.2016
M2M L2 Engineer
WIPRO INFOTECH India Pvt. Ltd
03.2014 - 05.2015
PDSN SME
ZTE India Pvt. Ltd
02.2012 - 03.2014
Packet Core Engineer
Alcatel-Lucent India PVT LTD. (ALUMS)
06.2010 - 01.2012
BSS Engineer
ZEQUEL Technologies (I) Pvt. Ltd.
08.2009 - 06.2010
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