Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

TARUN KATRAGADDA

ALDIE,VA

Summary

8+ years of extensive professional experience as a Telecommunications RAN Engineer with expertise in network optimization, troubleshooting, and implementation of various network solutions. Skilled in creating courses of action, methods of procedure, and test plans for problem resolution.

Overview

11
11
years of professional experience
1
1
Certification

Work History

Sr. Telecommunications RAN Engineer

Smartsky Networks
10.2018 - Current
  • As a Telecom RAN Engineer, my primary area of work is being a technical subject matter expert (SME) serving on high-performing teams in engineering, modeling, analysis, and testing of IT/telecommunications network solutions and RAN devices
  • Also, I will develop an automation test framework for development and system-level testing, as well as develop software on software-defined radios, embedded systems, and servers
  • Integrating telecommunications hardware and software systems, including software-defined radios and Linux servers
  • Automation using test tools including protocol analyzers, Wireshark, Channel Emulator, Spectrum Analyzers, Signal Generators, Spirent channel emulators, and modeling in a graph-based on-site data
  • Deploy, configure, maintain, and monitor all active network equipment like Airbourne radios, Baseband units, and Remote radio heads, ensuring seamless network operations
  • Troubleshoot RF issues like signal-to-interference plus noise ratio, Network gaps, and configuration changes during the test of systems
  • Diagnosed and resolved complex network issues using tools like Wireshark, Net Flow, and SNMP, leading to a reduction in network-related incidents
  • Developed different test benches to reproduce issues found in the field, i.e., Handover bench, EPC bench, OAM bench, Dynamic bench, Static bench, and Baseline benches
  • Executed comprehensive LTE test cases in a lab environment using ATG UE and eNodeB equipment to validate functionality, call flows, and protocol compliance prior to field deployment.
  • Conducted inflight RF performance testing, capturing LTE KPIs such as RSRP, SINR, and throughput to assess coverage and handover behavior in airborne scenarios.
  • Diagnosed and resolved hardware/software issues during flight tests, ensuring reliable data collection and system operation in constrained environments.
  • Performed post-flight optimization of network parameters including PCI planning, sector antenna tilts, and neighbor relations, leading to improved handover success and signal quality.
  • Designed and executed flight test plans tailored to network rollout phases, defining test objectives, KPIs, and routes to align with deployment and performance goals.
  • Used Python to maintain efficient software and configuration management of Test equipment to further test Air side-Airbourne radios, Ground Side-Baseband units, and Remote radio head software releases every month
  • Worked on GITLAB for source code management and was involved in code reviews and merge requests
  • Design, debug, and test network management software using an automation framework and generate optimum results
  • Simulated multiple S1 connections and multiple UE attaches, and verified Throughput performance in the lab environment
  • Experience in designing, Architecting, and implementing scalable cloud-based web applications using GCP and AWS
  • Developed and maintained an automated CI/CD pipeline using Jenkins for code deployment
  • Used AWS IOT core to connect RAN Network Elements (1000+) to the MQTT broker and publish telemetry information and push configuration per JSON schema.
  • Used AWS with Element management system (EMS) to automatically push configuration whenever there is a change in the network (SHA256)
  • Performed user experience testing based on developed call models against several Cabin wireless routers
  • Developed a solution to bridge remote lab networks using Ethernet over IP for ease of IOT testing with Smartsky’s partners like Honeywell, Satcom Direct, and CCX
  • Simulated user experience testing using Wi-Check test equipment to allow profile-based testing
  • Utilized advanced data analysis tools (e.g., Excel, Elastic Search, SQL) to extract, interpret, and present KPI data, supporting key initiatives across the organization
  • Utilized Elastic data lake to perform trend analysis to isolate and predict network issues
  • Used JIRA tool for defects, bugs, sprint planning, and tracking of assigned activities
  • Utilized JIRA to collaborate with cross-functional teams to sync up and drive issues towards resolution
  • Deployed Open5GS core using Docker composer and utilized Prometheus to capture metrics data, and used Grafana for dashboarding.

RAN Engineer

Ericsson
06.2014 - 11.2015
  • Designing and developing test plans and strategies
  • Identifying, analyzing, and documenting complex defects and inconsistencies
  • Optimize systems to ensure minimal cost and simplification in compliance with the required performance
  • Prepared the technical documentation for systems and telecommunication requisitions and performs the technical evaluations
  • Performed organizational systems architecture reviews and assessments, and recommends current and future hardware and software strategies and directions
  • Performed 2G/3G/4G baseline audits based on gold standards provided by customers (AT&T, Verizon, and Sprint)
  • Conducted performance and load testing using tools like iPerf, JMeter, and Wireshark to assess network capacity and identify bottlenecks, leading to a 30% improvement in network throughput.
  • Verified Ericsson network for issues related to sector swaps, antenna-line problems, Handover issues, and IFHO failure analysis
  • Troubleshoot the top 10 worst offenders in RNCs and engineering zones to improve Accessibility and Retainability KPIs
  • Diagnosed and resolved network issues using advanced troubleshooting techniques and tools, including protocol analyzers and network simulators
  • Developed simple Python scripts to automate repetitive tasks, such as file manipulation and data parsing
  • Optimized given network area by missing adjacency analysis
  • Analyze Pilot pollution, SHO, IFHO, IRAT for the same given area
  • Responsible for executing tests on QCs latest software test devices, collecting Key Performance Indicators using tools - QXDM, Android logs, Wireshark and QPST
  • Identified poor handover areas through QXDM layer 3 messages and provided recommendations for performance improvements
  • Observed Layer 3 messages for UE attach and detach from the network
  • Verified the quality (EcNo, RSCP) of calls (dropped, blocked, no service, handover) and data throughputs (HSUPA, HSDPA)
  • Conducted tests that include clusters (multiple sites), SSV, SSD, Handovers (Intra and Inter BSC)

Education

Master of Science - Computer Information Systems

California University of Management And Sciences
Arlington, VA
12.2017

Bachelor of Technology - Information Technology

JNTUH
04.2014

Skills

  • Windows
  • Linux
  • Python
  • Shell Scripting
  • Jira
  • Wireshark
  • Jenkins
  • AWS
  • GCP
  • Docker
  • IPv4
  • IPv6
  • QoS
  • LTE
  • Network Troubleshooting
  • DevOps
  • GitLab
  • Ansible
  • 3GPP
  • EPC

Certification

  • CCNA - Cisco
  • AWS Solutions Architect - Amazon Web Services

Timeline

Sr. Telecommunications RAN Engineer

Smartsky Networks
10.2018 - Current

RAN Engineer

Ericsson
06.2014 - 11.2015

Bachelor of Technology - Information Technology

JNTUH

Master of Science - Computer Information Systems

California University of Management And Sciences

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TARUN KATRAGADDA