Evan Qi

Evan Qi

Software Engineer in San Francisco, he/him

About

💻 🏀 😎

Projects

2022
Review Reactions at DoorDash

Consumers can mark reviews on DoorDash as helpful, and they can see which reviews are the most helpful.

2022
Review Ranking at DoorDash

Assign relevance scores to store reviews on DoorDash and rank by relevance instead, resulting in +$8.7 annualized GMV.

2021
Ratings Data Migration at DoorDash

Migrated > 1B rows of data out of legacy SQL database into new CockroachDB database. Led the migration of iOS, Android, and web clients off legacy APIs onto current microservice APIs.

Results:

  1. 97% reduction in legacy traffic
  2. Eliminated risk of SEVs caused by legacy systems
2021
DashPass Exclusive Items at DoorDash

Enabled items to be marked as only orderable with a DashPass subscription.

2020
Sold out/Item Limits at DoorDash

Enabling local, premium merchants to set limits on their items and sell out through the ordering platform.

2020
Project Fusion at DoorDash

Overall goals:

  1. Rebuild the Caviar experience within DoorDash
  2. Seamlessly transition 3M+ consumers and their data from Caviar to DoorDash

My role:

  1. Migrated $1M+ in credits, 5M+ payment cards, $1M in gift cards, 5M+ addresses from Caviar to DoorDash without any downtime, fraud, data loss, or data inconsistency.
  2. Made small, surgical changes across many microservices to support the Caviar experience.
2018
Caviar Anywhere at Square

Rebuilt the legacy checkout flow from scratch.
> up to 12x reduction in p90 latencies
> significant lifts in conversion
> clean, modular, loosely coupled architecture
> massive boost to developer productivity

2017
Caviar Square Integration at Square

Migrated Caviar's payment processing provider from Stripe to Square, saving an annualized $2M+ in processing fees.

2016
Caviar Pickup at Square

Introduced pickup as a new fulfillment option for food orders, requiring sensitive changes across the entire mission-critical checkout and order fulfillment flows.

Work Experience

2022 — Now
San Francisco

Building the future of identity

2019 — 2022
San Francisco

Caviar was acquired by DoorDash on Nov 2019.

Worked on Caviar Migration, Premium Experience, DashPass, and Social Proof teams.

2016 — 2019
San Francisco

Worked on everything consumer-facing for Caviar, a food delivery app.

Education

Contact

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