Jun 2022 – Jan 2025 · 2 yrs 7 mos · On-site

Feb 2015 – May 2022 · 7 yrs 3 mos · On-site

• As an experienced Engineering Leader at Amazon, I have led initiatives to enhance technological frameworks and improve operational efficiencies. My key achievements include:
• Scalable Data Infrastructure & Operational Excellence: Architected and deployed a highly scalable Elasticsearch data store for a retail brand normalization service, supporting over 100 seller central teams. Successfully transitioned from a single-box Lucene solution to a robust Elasticsearch cluster, achieving 100% uptime and over 99% availability, significantly reducing operational overhead and cutting operational tickets from 121 to 1 annually.
• Speech Recognition Enhancements & Model Optimization: Led a strategic initiative to standardize tokenizer usage across Alexa's speech recognition neural network models. This involved comprehensive evaluations and the replacement of outdated tokenizers with optimized alternatives, reducing the Word Error Rate (WERR) by 8.33%. Implemented a benchmarking framework to ensure continuous validation of tokenizer performance and coordinated the synchronization and deployment of updated tokenizers across 12 global marketplaces.
• Key Skills: Java, Python, Scala, SQL, Git, CI/CD, Linux, REST API development, and extensive AWS Services expertise including Elasticsearch, DynamoDB, Redshift, S3, Lambda, and more. Proficient in Spark/Map-Reduce/EMR.

Apr 2014 – Dec 2014 · 8 mos · Buffalo/Niagara, New York Area

• Working on web content development for The Institute for Lasers, Photonics and Bio Photonics using HTML, CSS, and JavaScript.
• Created cross browser compatibility JavaScript to ensure the functionality of client-side scripting.
• Developed and maintained large scale responsive website compatible for both desktop and mobile browsers.
• Coded animated charts and interactive widgets, flash videos using Adobe Dreamweaver and Adobe flash CS3.

Dec 2011 – Jun 2013 · 1 yr 6 mos

• Developed a web Portal (CRM Tool) for the HLT team containing all the details of the employees working in the Unit HLT. Contained project mapping information, details of On-site and Off-Shore team.
• Developed an online web portal (ASP.Net/C#) for information sharing among the Health Care Team of Infosys Technologies.
• Created Procedures/functions in SQL for Client validation and generation of reports and bills.
• Load tested Bank of America’s Web Application by generating HP Load runner client emulation scripts to emulate real world transactions.
• Reduced testing costs and post production failures by 40%.

Dec 2011 – May 2012 · 5 mos

• Underwent an extensive curriculum which ranged from Basic Concepts of C to Advanced C#, J2EE.
• Successfully completed Infosys Generic and Foundation training program, with specialized training in Microsoft .Net Technologies/Java.
• Developed a Web application (Sunshine Resort) using ASP.NET, ADO.NET.

Jun 2010 – Jul 2010 · 1 mo · Central Delhi, Delhi

• Developed an Automated time and attendance tracking application (Java) for the employees of Delhi Transco Ltd.
• Reduced labor-intense processing of payroll and costly overpayments by 60%.
• Worked with Naandi Foundations as a Technology Intern in development of an interactive website .