P SATISH RATNAM

+91-798******* adzrgc@r.postjobfree.com linkedin.com/in/satish-ratnam-08588ab5

SUMMARY

•Accomplished QA Engineer with 7+ years of industry experience; comprising 4+ years as a technical specialist in IT and 3 years in academic roles as an Assistant Professor in Electronics and Communications

•Extensive expertise in CCNA (200-301) (R&S), Software Quality Assurance, including Manual, Automation, and Certification with a focus on IEEE 802.11n a/b/g/n/ac, DOCSIS+ Cable Modem’s, and WAN Optimization

•In-depth knowledge in Wi-Fi domain testing, Wireless certification programs, and IoT/EIOT-ranging performance testing, backed by hands-on experience with 2x2, 3x3 clients, router configurations, and switching devices

•Proficient in network optimization techniques like QoS, Network monitoring, and Load Balancing using cutting-edge tools such as Net profiler, Steelhead, and Interceptors

•Demonstrated experience in optimizing 1G, 10G, 40G, and 100G Ethernet NICs for top-tier data centers

•Skilled in automation of test scripts through python and SAT frameworks

•Vast background in software testing methodologies including functional, integration, regression, and performance testing in specialized environments like anechoic chambers

•Proven track record in collaborating with cross-functional teams; offering remote support to developers and aiding in issue resolution during debugging sessions

•Successful track record of working for global clients during the working tenure with industry giants like BROADCOM and Comcast

•Academic excellence with a Master’s in Technology in Communication Systems, and notable journal publications in video encoding, WLAN-WBAN interference, and medium access exploration

CORE COMPETENCIES

WiFi Testing Network Quality Assurance Wireless Certification Network Performance Optimization Manual and Automated Testing WAN Optimization Network Monitoring Load Balancing Router & Switch Configuration Python Scripting Test Methodologies Issues Resolution Debugging

TECHNICAL EXPERTISE

•Scripting Languages: Python

•CCNA(200-301) (R&S)

•Networking Protocols: IEEE802.11 a/b/g/n/ac, DOCSIS 3.1, TCP/IP, RDK-B Stack

•Sniffer Tools: Net Profiler, Tcpdump, Wireshark, Bloodhound

•Tools & Utilities: Iperf, pload, wget, IXtool, JIRA, Jenkins

•Data Analytics: Splunk, Elastic Search

•Operating Systems: Linux, Windows, Apple (macOS)

WORK EXPERIENCE

Riverbed Technology

QA Engineer

Dec 2022 – Till Date

Tata Elxsi

Senior Engineer

May 2021 – Dec 2022

Broadcom

Quality Assurance Engineer

Apr 2019 – May 2021

MJR College of Engineering

Assistant Professor

Jun 2014 – Mar 2017

KEY RESPONSIBILITIES

Project: 802.11n Certification

•Prepare Wi-Fi 11n test bed based on mandatory test plan

•Capture packets using Wireshark sniffer tool

•Manually differentiate between data packets and authentication packets

•Conduct Functional and Interoperability Testing for 802.11a/b/g/n/ac protocols on multiple Broadcom Wi-Fi chipsets

•Perform daily and weekly Regression testing on current host and firmware releases

•Provide consistent customer reports based on testing outcomes

•Review and update Test Cases tailored to various customer requirements

Project: Performance Test on IOT/EIOT on MAC

•Verify throughput for 802.11n/11ac with client Mac books against 160 Market Access Points (APs)

•Verify throughput for 802.11 a/b/g/n/ac protocols with 160 Market APs for Apple Mac books

•Analyze and test reported issues on multiple customer macOS devices

•Create, update, and automate test plans/features based on customer needs

•Analyze customer-reported problems and assist developers in reproducing them

•Set up and validate WLAN feature test beds

Project: DOCSIS + RDK-Broadband cable modem Testing

•Develop a standardized software stack for OEMs with features managing broadband functions like WAN, LAN, data reporting, home networking technologies (e.g., Wi-Fi, MoCA), and IoT

•Conduct daily and weekly Regression testing on the latest host and firmware releases

•Provide dependable customer reports based on testing outcomes

•Collaborate with Automation Engineers to align 'new feature' test methods/scripts with program deliverables

•Review and modify Test Cases according to different customer needs

•Execute test scripts and document defects in the JIRA Bug Tracking Tool

Project: WAN Optimization (Steel Head/Interceptor)

•Ensure optimal network and application performance to boost business productivity

•Implement QoS, Network monitoring, and Load Balancing using Net profiler, Steelhead, and Interceptors

•Carry out Regression testing on the latest release and consistently provide customer reports

•Detect bugs on the WAN using Net profiler

•Review and modify Test Cases based on customer needs

•Run test scripts and log defects in the JIRA Bug Tracking Tool

•Monitor all applications on Linux machines in the test environment

EDUCATION

•Master of Technology in Communication Systems, Visvesvaraya National Institute of Technology, India, 2014

•Bachelor of Technology in Electronics & Communication Engineering, Jawaharlal Nehru Technological University, India, 2010

JOURNAL PUBLICATIONS

•Spatial and Temporal DWT Multi Resolution Analysis on Video Encoding Mechanisms. P Satish Ratnam

•Interference analysis between WLAN and WBAN, P Satish Ratnam, P. H. Ghare

•Cognitive Medium Access Exploration for Home Applications, P Satish Ratnam, P. H. Ghare

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