# Sanjay R.

> Cloud security | Virtualization | Kubernetes | CKA | 4G/5G Packet Core [VNF|CNF] |

Location: Mountain View, California, United States
Profile: https://flows.cv/sanjayr

A passionate quality assurance tester in networking & telecommunication industry. 
Skilled in feature testing, platform infrastructure engineering, virtualization, containerization and automation.
I am an enthusiastic learner and always ready to grab onto any new information in my everyday' s work.
Greatly interested with the developments happening around 5G, cloud computing and mobile network gateways.


Certifications:
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* Certified Kubernetes Administrator (CKA)
* Certified Calico Operator: Level 1 for Kubernetes Networking
* Microsoft Azure Fundamentals (AZ-900)
* Nokia Interior Routing Protocols (4A0-101)
* Nokia Network Routing Specialist I (NRS I) certified
* Cisco Certified Entry Networking Technician

Current Technical Skill Set:
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Technologies: Platform virtualization [KVM|virsh tools] and containerization of Nokia's 4G and 5G Packet Core network functions (VNFs and CNFs)
Cloud Infra Orchestration: Kubernetes, HELM, openstack basics
HW Platforms: Nokia 7750MG/SR Routers, CISCO ASR5K Gateways.
Networking: TCP/IP, Routing (OSPF/BGP/IS-IS), BFD, ARP among other networking concepts.
Telecommunication: 5G, LTE|4G, Control & User Plane Separation, WlanGw, 3G SGSN.
Scripting Languages: TCL, Python
SDLC tools: GIT, CVS, JIRA
Tools: IXIA traffic generators, Wireshark & tcpdump packet analyzer

Current Job Responsibilities:
---------------------------------
* At present working on designing and testing platform infra topologies for Nokia's 4G and 5G Packet Core Cloud Network Functions (CNFs) using containers|Kubernetes|HELM
* Actively involved in performance tuning and throughput determination testing for cloud mobile gateways.
* Experience with KVM|virsh tool-based topology infrastructure building for 4G|5G packet core Virtual Network Functions (VNFs). 
* Manually test and provide support for automation of the same using TCL, Python.
* Software Quality Assurance and feature compliance with RFC, 3GPP2 standards and product requirement documents.
* Functional testing involving writing checklist, reviewing, manual testing & automating test cases.
* Working knowledge and understanding of Mobile Packet Core Gateways(3G|4G|5G|CUPS) in virtualized and containerized environments.
* Ability in working with support engineers to reproduce, debug and understand field issues and cover scenarios experienced in live network.
* Actively mentoring and providing support for other peer teams in solving their requirements.

## Work Experience
### Principal Engineer @ Palo Alto Networks
Jan 2022 – Present | Santa Clara, California, United States

### Senior Software QA Engineer @ Nokia
Jan 2016 – Jan 2021 | Mountain view, California
Platform infra design and testing of virtualized and containerized Mobile Gateways.
Testing L3/L2 connectivity between VMs and experience in bringing up test setups for any new features on Cloud/Virtual Mobile Gateway.
Hands-on expertise in KVM, virsh package and Linux environments.
Feature testing and test environment design in the areas of N:K local redundancy, DB redundancy, LoadBalancer less architectures.
Determining appropriate configurations and settings for the underlying platform to ensure desired performance of the Mobile Gateway.
Experience in understanding product requirement documents and engaging in discussions to understand customer issues , feature functionality , applications and limitations.
Major work involves in preparing test plans, manual testing of features, automation of test cases using TCL/ Python, developing frameworks for testing
Experience in working with support engineers to reproduce , debug and understand field issues and cover scenarios experienced in live network·
Working knowledge and understanding of Packet Gateway and other components of EPC architecture, Wlan-GW amongst others.

### Software QA Engineer @ Alcatel Lucent
Jan 2013 – Jan 2016 | Mountain View, California
Responsible for testing the EPC PGW, and SGW functionally and later the CUPS version of the same.
Worked on Wlan Gateway (TWAG) (S2a interfaces)
Develop modular and scalable TCL scripts to automate test cases.
Prioritized execution, bug-filing and time-sensitive qualification during QA cycle.
Interfaces: s2b, s5/s8, s4, s6b, gx
Protocols: gtpv1, gtpv2, Diamater, pfcp

### Software QA Engineer @ Cisco
Jan 2010 – Jan 2013
Involved in 2G & 3G Testing of Serving GPRS Support Node.
Worked in S4-SGSN Testing.
Interfaces Worked : Iu, gb, gn, s4, s3
Protocols Worked: Gtpv1, Gtpv2, HSS
Testing Involved both Manual & Automation Testing.

### Member Of Technical Staff, SQA @ Starent Networks
Jan 2009 – Jan 2010
Worked in CDMA Femto & IMS Testing. 
Involved Femto Network Gateway IPsec Tunneling, S-CSCF Testing.
SGSN 3G Network Sharing.


## Education
### Bachelor of Engineering (B.E.) in Computer Science
College of Engineering, Guindy


## Contact & Social
- LinkedIn: https://linkedin.com/in/sanjayravichandran

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Source: https://flows.cv/sanjayr
JSON Resume: https://flows.cv/sanjayr/resume.json
Last updated: 2026-04-12