Summary
Overview
Work History
Education
Skills
Languages
Accomplishments
Timeline
Generic
Kamaraj Muthusamy

Kamaraj Muthusamy

Bengaluru

Summary

Accomplished Senior Quality Assurance Engineer at Amazon with expertise in advertising technology and leadership in cross-functional teams. Spearheaded initiatives that safeguarded $5M+ in ad revenue and reduced testing efforts by 40%. Proficient in Java and automated testing, driving quality across critical projects and mentoring future leaders.

Overview

16
16
years of professional experience

Work History

Senior Quality Assurance Engineer

Amazon
Bengaluru
12.2017 - Current
  • Developed and implemented OpenRTB test flag awareness across Amazon Demand Side Platfrom (DSP), Supply Side Platforms (SSP) and 5+ publisher platforms (Twitch, Prime Video, Live Sports, IMDb, miniTV), enabling 4,000+ developers to safely test in production and preventing 10+ High Impact Events (HIEs), safeguarding $5M+ in ad revenue.
  • Developed deep expertise across DSP, SSP, Ad Exchange (AX), OpenRTB, and Publisher Platforms. Applied AdTech knowledge to advise 25+ teams and drive quality initiatives across 50+ critical projects in the last 3 years.
  • Envisioned and delivered a scalable one-click test data generation platform, securing leadership alignment and establishing an independent charter for the tools team. Solved test data requirements for 100+ teams across Ads using AWS Lambda, DynamoDB, StepFunction and API Gateway, saving the manual effort of creating and managing test data required for automation testing from 5 days per marketplace to 5 mins.
  • Designed and implemented an Automated Regression Test (ART) framework for Amazon AdStack, integrating TestNG, Selenium, Coral Client, REST APIs, and AWS. Empowered teams to automate 240+ end-to-end use cases, reducing manual testing time by 24 days per project launch.
  • Interviewed 150+ candidates to uphold Amazon's hiring bar and mentored 20+ engineers, directly contributing to the promotion of 15+ SDEs, SDETs, and QAEs over 5 years.
  • Defined and implemented a parallelization testing strategy, scaling International Expansion launches for Sponsored Ads and saving 40% in testing effort.

Quality Assurance Engineer

Amazon
Bengaluru
12.2017 - Current
  • Defined and implemented a parallelization testing strategy, accelerating International Expansion launches for Sponsored Ads and reducing testing effort by 40%. As a result, Amazon launched 5 marketplaces in 2022, compared to the previous pace of one marketplace every 9 months.
  • Led the expansion of Sponsored Ads to 8+ new marketplaces (Singapore, Sweden, Poland, Turkey, Egypt), managing 3+ QAEs and driving collaboration across 30+ teams.
  • Led a cross-functional initiative to reduce testing effort for marketplace launches, shortening billing test duration from 5 weeks to 1 week. Built a robust framework, automated 200+ billing use cases using TestNG, REST API, AWS S3 Bucket and Kinesis, and optimized the dial-up strategy, reducing billing testing effort by 80% and cutting dial-up time from 96 hours to 4 hours.
  • Led 20+ large billing launches right from requirement gathering to implementation, testing and obtaining sign-off from Accounting, Tax and FinOps stakeholders.
  • Led an organization-wide initiative to achieve Full CD for 60+ customer-facing services in the Indian marketplace. Defined and implemented a strategy for Native AWS and REST Services, including approval workflows for Unit Tests, Integration Test coverage, and rollback mechanisms, saving 4 SDEs' worth of manual deployment effort per service per month.

Testing Lead

ECI Telecom
Bengaluru
06.2013 - 12.2017
  • Led a 5-member SDET team to deliver the automation framework and test suite for the Network Planning and Long-haul Optical products of ECI Network.
  • Proposed, influenced, and migrated the legacy ECI-specific automation framework from Swift to TestNG, eliminating manual intervention, reducing hardware costs by 80%, and enhancing parallelization.
  • Defined the automation strategy and framework, leading the delivery of a test automation suite for over 10 Optical Network product launches of ECI by using Java RMI, TestNG and Telnet communication protocol.

Project Engineer (SDET)

Wipro Limited
Chennai
02.2010 - 06.2013
  • Developed a UI automation framework and test suite using TetWare and Java for the Network Management System (NMS) to regress the optical product launches of Fujitsu.
  • Managed over 20,000 automation test cases supporting 50+ optical hardware systems.
  • Built optical hardware simulators, enabled teams to conduct NMS configuration testing without the dependency on Optical Hardware, saved automation execution cycle time by 40%.
  • Developed a automation framework for conducting stress testing using Java, to create 1000+ trails (connection) between Optical hardwares to stress the NMS configuration manager.
  • Built a test execution monitor using a Perl script, enabling teams to track the live status of test executions through a self-service portal.

Product Engineering Intern

Wipro
Chennai
01.2009 - 05.2009
  • Collaborated with Fujitsu engineers and Wipro offshore teams to develop an Optical Traffic Switcher using C++.
  • Learned Optical protocols of SONET, SDH, and OTN.
  • Developed Optical Traffic Switcher using C++.
  • Built simulator to validate Optical Traffic Switcher using multi-threading and UDP sockets in C++.

Senior Software Engineer in Test

ECI Telecom
Bangalore
  • Defined the automation strategy and framework, leading the delivery of a test automation suite for over 10 Optical Network product launches of ECI by using Java RMI, TestNG and Telnet communication protocol.
  • Developed an automation framework to validate ASON and WSON OTN and Optical routing protocol functionality using Java, Swift, and Telnet communication protocols. Led a 3-member team to drive testing for the switching protocol of ECI.
  • Optimized regression test automation suites for Optical Equipments and refactored automation test suite, reducing the maintenance costs by 60%.
  • Created a stress testing framework for Apollo OTN Equipment and integrated drivers with Network Management Systems.

Education

Master of Computer Applications (MCA) - Computer Science

Kongu Engineering College
12.2009

BCA - Computer Science

Sri Vasavi College
Erode
12.2006

Higher Secondary - General Studies

Railway Colony Municipal Higher Secondary School
Erode, Tamil Nadu, India
12.2003

Skills

  • Advertising technology expertise
  • Java programming and C
  • Leadership in cross-functional teams
  • Complete software development lifecycle
  • Network management solutions
  • Real-time bidding frameworks
  • Optical network technologies
  • Project management skills
  • Quality control processes
  • Automated testing with Selenium
  • Consulting for strategic initiatives
  • Stress testing techniques
  • SDH knowledge base
  • Team leadership capabilities
  • User interface automation and web services integration
  • Unix proficiency

Languages

Tamil
First Language
English
Upper Intermediate (B2)
B2

Accomplishments

Force Multiplier Award, for outstanding contributions to enabling end-to-end testing capabilities for Twitch and Prime Video, empowering 4,000+ users within and outside Amazon Ads to safely conduct end-to-end testing, 01/2025, Amazon

Timeline

Senior Quality Assurance Engineer

Amazon
12.2017 - Current

Quality Assurance Engineer

Amazon
12.2017 - Current

Testing Lead

ECI Telecom
06.2013 - 12.2017

Project Engineer (SDET)

Wipro Limited
02.2010 - 06.2013

Product Engineering Intern

Wipro
01.2009 - 05.2009

Senior Software Engineer in Test

ECI Telecom

Master of Computer Applications (MCA) - Computer Science

Kongu Engineering College

BCA - Computer Science

Sri Vasavi College

Higher Secondary - General Studies

Railway Colony Municipal Higher Secondary School

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Kamaraj Muthusamy