Ronak Lakhwani
Seattle,WA
Summary
Senior Software Development Engineer with 13+ years of experience building large-scale distributed systems at Amazon across Advertising, Payments, and Logistics, currently focused on AI-powered advertising infrastructure that understands campaign creatives and improves ad relevance across millions of devices while serving ~20K TPS.
Overview
12
12
years of professional experience
Work History
Senior Software Development Engineer
Amazon
Seattle
01.2023 - Current
- Building AI-powered advertising systems that improve ad relevance and advertiser yield across Fire TV devices.
- Built AI system that analyzes and labels advertising campaign creatives using computer vision and LLM-based metadata analysis.
- Developed distributed pipelines processing campaign assets and metadata to generate semantic labels used by ad ranking and contextual targeting systems.
- Designed ML-driven ad relevance framework using behavioral signals to improve contextual ad matching.
- Built ad-serving infrastructure supporting ~20,000 requests per second (TPS).
- Amazon — Fire TV Ads
Software Development Manager
Amazon
Seattle
01.2022 - 01.2023
- Led 8-engineer team building Tier-1 financial services for Amazon Gift Cards and Product Voucher systems.
- Owned services managing customer balances and financial transactions handling ~100K TPS.
- Built financial integrity accounting platform reducing onboarding time from 28 weeks to 1 week.
- Amazon — Gift Cards Platform
Senior Software Development Engineer
Amazon
01.2021 - 01.2022
- Built Product Voucher payment platform for Amazon checkout.
- Architected Mixed Cart system enabling customers to apply multiple payment methods per order based on item eligibility — e.g., a Book Product Voucher for books and a credit card for shoes in the same cart.
- Drove end-to-end changes across Payment Selection, Your Orders, Refunds, Invoicing, Customer Support Center, and internal payment debugging tools to support item-level payment routing with restrictive payment methods.
- Amazon — Payments
Software Development Engineer II
Amazon
Austin
01.2017 - 01.2021
- Built CORTEX financial integrity platform for fulfillment systems.
- Developed data masking service protecting sensitive data for data science teams.
- Built multi-node configuration framework saving ~3 hours operational effort daily.
- Amazon — Fulfillment Technologies
Software Developer
Cisco Systems
01.2014 - 01.2016
- Built analytics pipelines analyzing indoor mobility patterns using WiFi signals.
- Developed network analytics improving visualization of large network graphs.
- Cisco Systems — Innovation Labs
Education
M.Tech - Computer Science
Indian Institute of Technology, Roorkee
01-2016
B.E - Computer Science
Institute of Engineering and Technology, Indore
Skills
- Languages: Java, Python, SQL
- AI / ML: LLM pipelines, Computer Vision, Multimodal Classification
- Distributed Systems: AWS, DynamoDB, S3, Lambda, Step Functions
- Data Platforms: Spark, Glue, Redshift
- Ads Infrastructure: Ad Serving, Contextual Targeting, Campaign Analytics
Timeline
Senior Software Development Engineer
Amazon
01.2023 - Current
Software Development Manager
Amazon
01.2022 - 01.2023
Senior Software Development Engineer
Amazon
01.2021 - 01.2022
Software Development Engineer II
Amazon
01.2017 - 01.2021
Software Developer
Cisco Systems
01.2014 - 01.2016
M.Tech - Computer Science
Indian Institute of Technology, Roorkee
B.E - Computer Science
Institute of Engineering and Technology, Indore