Summary
Overview
Work History
Education
Skills
Accomplishments
Timeline
Personal Information
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Ganesh Rathnakumar

San Diego,CA

Summary

A passionate technologist and strong leader with proven experience leading highly skilled teams to deliver impactful software solutions for complex business problems. Adept at designing scalable distributed systems and driving cross-functional initiatives that enhance performance, reliability, and innovation.

Overview

19
19
years of professional experience

Work History

Software Development Manager

Amazon
09.2021 - Current
  • Drove the core data platform powering all Amazon shipments worldwide: Led a 16+ engineer team delivering highly available data aggregation services, ensuring 100% data accuracy for $50B in monthly transactions across 15 million sellers.
  • Directed business-critical, SVP-level compliance initiatives: Successfully launched programs including India Payment Data Localization (RBI compliance) and EU Fee Compliance Automation, which delivered $11M in annual savings and improved audit accuracy.
  • Architected strategic self-service frameworks: Empowered 40+ partner teams to integrate seamlessly with core services, facilitating critical launches for Multi-Channel Fulfillment (MCF), Mexico Tax Compliance, and Amazon Haul.
  • Pioneered AI-based efficiency initiatives: Utilized Generative AI to save ~2,000 SDE days on migrations, enabled touchless onboarding, and cut new-business launch times by three months via intelligent test automation.
  • Formulated Amazon’s Peak Readiness Strategy: Ensured seamless operations for Selling Partner Services during multiple Prime Days and Q4 peaks without major incidents or latency impact.
  • Cultivated a high-trust, growth-oriented culture: Led with empathy and accountability, mentoring engineers and achieving seven promotions across SDE I/II and SDE II/III levels within three review cycles.
  • Maintained exceptional leadership ratings: Consistently achieved 4.0+/5.0 manager effectiveness and team satisfaction ratings in organizational reviews and anonymous surveys, reflecting high morale and leadership trust.

Software Development Engineer and Sr. Software Development Engineer

Amazon
01.2015 - 09.2021
  • Led the ideation, proposal, and development of a scalable financial data audit trail that processes over 20,000 transactions per second. The solution established a 100% accurate, complete, and immutable audit trail, improving internal/external audit efficiency and end-to-end reconciliation across Amazon Retail.
  • Designed a robust and scalable reconciliation solution for Amazon Retail Financial Services, handling petabytes of data and ensuring financial compliance across 120+ business services for six years. The solution is now recognized as the standard for retail and digital services.

Application Analyst

Barclays
04.2012 - 12.2014
  • Responsible for software system design and implementation of telephony projects, coordinating the team for production support and testing.

Software Engineer

Singtel
12.2010 - 03.2012
  • Developed real-time telecommunication billing and call-trace systems for one of Asia’s largest telecom companies.

Software Consultant

Barclays Corporate
05.2010 - 12.2010
  • Developed C++ and C# applications for enterprise financial systems.

Software Engineer

HCL Technologies
01.2007 - 01.2009
  • Focused on Java development for CISCO enterprise applications.

Education

M.S. - Computer Networks

Nanyang Technological University
Singapore
01.2011

B.E. - Computer Science

Anna University
Chennai, India
01.2007

Skills

  • Cloud-based computing
  • Experience with large-scale data processing
  • Generative AI expertise
  • Microservices architecture
  • AWS Cloud Infrastructure
  • Operational Excellence
  • Strategic leadership skills
  • Agile methodology implementation

Accomplishments

  • Led a high-performing team of 16 engineers delivering highly available data aggregation and orchestration services that power all Amazon shipments worldwide—ensuring 100% accuracy, timeliness, and completeness for payment computations across 15 million sellers, enabling $50B in annual transactions, and powering the Amazon Retail Flywheel.
  • Directed and successfully launched multiple SVP-level, business-critical programs, including India Payment Data Localization—migrating terabytes-to-petabytes of Amazon Pay data from Ireland to India data centers to achieve RBI compliance—and EU Fee Compliance Automation, reducing manual reconciliation, delivering $11M annual savings, and improving audit accuracy.
  • Created strategic self-service architecture frameworks empowering 40+ partner teams to integrate seamlessly with core services, facilitating VP/SVP-level launches including Multi-Channel Fulfillment (MCF), Mexico Tax Compliance, Cross-Border Shipping Fees, and Amazon Haul.
  • Pioneered Generative-AI-based simplification initiatives, saving ~2,000 SDE days on migration and enabling touchless onboarding for partner teams, while cutting new-business launch times by 3 months through intelligent test automation.
  • Formulated Amazon’s Peak Readiness Strategy for Selling Partner Services, ensuring seamless operations during multiple Prime Days and Q4 peaks without major incidents or latency impact.
  • Fostered a culture of openness, trust, and psychological safety, enabling engineers to innovate and grow through collaboration and ownership.
  • Led with empathy and accountability, mentoring engineers through structured growth plans—promoting 4 SDE I – SDE II and 3 SDE II – SDE III within two review cycles.
  • Maintained a 4.0+/5.0 manager effectiveness rating and 4.0+/5.0 team satisfaction rating consistently across organizational reviews, anonymous surveys, and peer votes, reflecting exceptional team morale and leadership trust.

Timeline

Software Development Manager

Amazon
09.2021 - Current

Software Development Engineer and Sr. Software Development Engineer

Amazon
01.2015 - 09.2021

Application Analyst

Barclays
04.2012 - 12.2014

Software Engineer

Singtel
12.2010 - 03.2012

Software Consultant

Barclays Corporate
05.2010 - 12.2010

Software Engineer

HCL Technologies
01.2007 - 01.2009

B.E. - Computer Science

Anna University

M.S. - Computer Networks

Nanyang Technological University

Personal Information

Title: Software Development Manager III(L6) | Amazon | San Diego, CA
Ganesh Rathnakumar