Fourteen years across three employers and a product of my own

Founder and Engineer

• Built and run nextbookinorder.com, a 68,000-page catalogue site, end to end. The batch pipeline streams extraction over a 144 GB compressed dump and a second 62M-record source, loads ~150M staging rows into PostgreSQL, and resolves entities across both sources.
• Built the LLM content pipeline with deterministic filters, a judge model independent of the generator, and a claim audit. Measured where it fails (~18% fabrication on thin sources) and changed the pipeline to skip those sources rather than challenge them.
• Made release quality structural: every class of bug that ships once becomes an unskippable check in the deploy gate, with baselines that can only ratchet tighter.

Case study: the pipeline and the deploy gate

Senior Software Engineer

Nominated for promotion to Staff Software Engineer, Sep 2025

• Owned design and delivery of technical reconciliation for Self-Processing (Lynx), PayPal's in-house card processing platform: the system that proves every transaction is accounted for through every processing stage. The program was projected to deliver ~$60M a year in cost savings by reducing third-party processor fees at PayPal's card volume.
• Defined the reconciliation data contracts with four upstream teams across three time zones, with no reporting authority over any of them. Built PoCs, documented the trade-offs, and took the design through enterprise architecture and TechRecon design reviews to consensus.
• Designed a reconciliation system that is both scheduled and event-driven: a scheduled job reconciles each hour on the happy path, and an event-driven path (S3 events, SNS, SQS, watermark publisher Lambda) reruns any reconciled hour that receives late records, so its exceptions clear automatically.
• Built CDC pipelines (DynamoDB Streams, Kinesis, Firehose, Lambda, S3, EMR) with AWS CDK, plus per-stage counts, lag and failure alarms, so a stalled stage was visible before a reconciliation report was wrong.
• Partnered with two Sr. Staff engineers and a Principal Engineer on Lynx architecture. Contributed to the AWS-to-GCP and GCP-to-on-prem integration designs and shaped the GCP-based TechRecon solution.
• Set AWS standards with the Cloud Platform group that were adopted across teams: Lambda CI/CD, resource and deployment conventions, and a proposed unified configuration framework for the Inbound, Outbound and TechRecon workflows.
• Ramped three junior engineers onto AWS and Self-Processing workflows through design walkthroughs and owned slices of the CDC and reconciliation work. Led the 2025 summer internship program.

Case study: technical reconciliation for Lynx

Software Development Engineer II · Fulfillment Technology

• Designed, built and operated AWS-based REST services that serve warehouse data to internal Amazon teams.
• Enhanced and maintained the safety and compliance services that support warehouse worker operations.

Software Development Engineer II · Prime Video Live Events

• Built pipelines that ingest sports data (schedules, teams, players, events) from multiple third-party providers, normalized it into one graph model in Amazon Neptune, and served it to Prime Video Live Events teams through REST services.

Software Development Engineer II · Last Mile Technology

• Owned the telemetry pipeline and on-device client library for the delivery associate app, and re-architected both as the fleet grew from 70K+ associates to ~1M registered and 600K+ active.
• Migrated live traffic onto the new pipeline by running old and new in parallel, without breaking the dashboards operations depended on: ~1.1 TB/day into a 100+ TB Redshift store.
• Scaled the Redash query layer so analysts and engineers could query the full 100+ TB store.

Case study: the telemetry migration

Software Development Engineer II · Supply Chain Optimization Technologies

• Added simulations to the fulfillment insights framework for shipping-cost what-if analysis and removed its bottlenecks, cutting simulation execution time by 85%.

Software Development Engineer I

• Led the launch of the Seller Profile page and deprecation of the legacy Seller page, guiding four engineers through scoping, development, testing and launch, and moving the page from Perl/Mason to Java Spring Boot.
• Implemented features across the Amazon.com B2B Offer Listing, Detail and Manage Your Inventory pages.

Technical Consultant

• Cut the Dell Retail Channel Management portal's page load from 28 s to 2.5 s by redesigning SQL queries and data flow. Ran PSR testing with LoadRunner and trained 11 engineers on it.