Overview
Work History
Education
Certification
Timeline
Awards
Disclaimer
Generic

Ravi Ranjan Kumar

Engineer
Bengaluru,KA

Overview

14
14
years of professional experience
3
3
Certification

Work History

  • Subject Matter Expert with 14+ years of experience in telecom networks with specialization in IMS Core (SBC, CSCF, TAS, NEF), 5G/4G VoLTE, and cloud-native deployments (Kubernetes, Docker, OpenStack, CNF). Proven track record in deployment, integration, and optimization of high-availability telecom solutions across global clients. Strong exposure to R&D coordination, customer escalations, and performance tuning.
  • Core Competencies
  • IMS Core: SBC, P/I/S-CSCF, TAS, ENUM/DNS, NEF
  • Cloud Platforms: Docker, Kubernetes, Red Hat OpenStack, AWS
  • CNF/NFV: ZTS, Nokia Container Services, CBIS
  • Tools: Wireshark, Jira, Git, Helm, Ansible
  • Protocols: SIP, Diameter, SCTP, IPv6, TCP/UDP
  • Soft Skills: Customer Engagement, Documentation (HLD/LLD), RCA, Lab Testing

Configuration Engineer

Ericsson India Pvt. Ltd. (Off-Role)
04.2013 - 11.2013
  • Health Monitoring of MSS, MGW, HLR & Fault Management.
  • Daily analysis of switch reports/KPI’s which include Paging Success Rate, Processor loading, Success Call Rate, ASR etc. to ensure the optimal operation of all MSC/HLR/VLR.
  • Switch Administration, O&M for ZTE MSS, MGW, HLR including Troubleshooting and configuration audit of MSS nodes and MGW.
  • Diagnostics, preventive maintenance, troubleshooting.
  • Planning, Administration, Execution & Augmentation of inter MSC, VLR capacity, signaling units.
  • TG Capacity Utilization and Planning.

Core Engineer

ZTE India Pvt. Ltd. (Off-Role)
01.2012 - 04.2013
  • Analyzing and resolving major call related and hardware issues.
  • Analyzing Clear codes and coordinating with Circle engineers for timely action.
  • Health check-up of all ZTE nodes.
  • Guiding L1 level members in closing Trouble tickets. Performing O&M routine checking of network active alarms, charging file status, SS7 signaling link status and link loads, circuits and circuit group status, clear codes, computer units and computer loads

OMCR Engineer

ZTE India Pvt. Ltd. (Off-Role)
06.2011 - 04.2013
  • Operation and Maintenance of Switch-OMCR under ZTE Platform ZXC10 MSC, MGW
  • Monitoring and rectification of system alarms as per escalation level.
  • Co-ordination with care team in case of unexpected behavior of the system.
  • Generation of various types of reports from system node on daily, weekly and monthly basis.
  • Compilation and presentation of inter operator data report, POI utilization report to keep track on the system performance.

Education

B.Tech. - Computer Science

Arya College of Engg. & I.T.
Jaipur, Rajasthan
01.2010

Diploma - Information Technology

Govt. Polytechnic
Latehar, Jharkhand
01.2007

Certification

  • AWS Certified Solutions Architect – Associate
  • Red Hat Certified Engineer – EX310 (OpenStack)
  • NEF R20 Integration Engineer
  • CFX5000 Design Engineer Certification
  • AWS Certified Solutions Architect – Associate- SAA-C02
  • VOX Integration Engineer

Timeline

Configuration Engineer

Ericsson India Pvt. Ltd. (Off-Role)
04.2013 - 11.2013

Core Engineer

ZTE India Pvt. Ltd. (Off-Role)
01.2012 - 04.2013

OMCR Engineer

ZTE India Pvt. Ltd. (Off-Role)
06.2011 - 04.2013

Diploma - Information Technology

Govt. Polytechnic

B.Tech. - Computer Science

Arya College of Engg. & I.T.

Awards

Appreciated by Cellcom Israel for restoring VoLTE, Acknowledged by Du-Dubai for critical Go-Live support, Best CSAT score from TWC USA for CFX issue resolution

Disclaimer

I hereby declare that the above-mentioned information is correct to the best of my knowledge. (Ravi Ranjan Kumar)

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