Contact me at cqian019@gmail.com Full-stack web applications developer with experience in HTML/CSS, JavaScript (Node.js, React + Redux), Java (Spring), Python (Django, Flask), C# (ASP.NET). Graduated Computer Science major from UC Berkeley.

2024 — NowRampSoftware Engineer

2024 — Now

2020 — 2024CodaSoftware Engineer

2020 — 2024

Led team of 5 to improve search relevance and discoverability of 3rd party integrations (Packs) by migrating from Postgres to AWS Opensearch and optimizing search quality, leading to a 50% increase in overall Pack installations and a 70% increase in usage

Led full-stack development of new user-facing dashboards, data pipeline, and API endpoints for viewing published content analytics, resulting in a 3x increase in dashboard views. Utilized TypeScript, Node.js, React, PostgreSQL, Airflow, and Snowflake.

Engineered critical document features such as collaborative editing of tables and increasing the recovery window of deleted objects from 12 hours to 31 days using React and TypeScript

2019 — 2020AtlassianSoftware Engineer

2019 — 2020

San Francisco, California

Drove improvements to measure and achieve latency and reliability SLOs across high-volume messaging platform utilizing Apache Spark, Java Spring, Node.js, PostgreSQL, and DynamoDB

Created a serverless events processor for the platform using Python, AWS Lambda, and SQS capable of processing 10,000+ events per second, provisioning resources through Terraform

Onboarded and mentored 4 contractors and an intern remotely

2018 — 2018RobloxSoftware Engineering Intern - Growth Team

2018 — 2018

San Mateo, California

I worked as a software engineering intern at Roblox, working to increase MAUs and retention by improving login accessibility and gathering verified contact info.

Technologies: C#, ASP.NET MVC, SQL, AngularJS, HTML/CSS

Serviced 30,000,000+ login requests weekly by developing new feature to allow users to login with their email address and phone number using C#, ASP.NET MVC, and SQL

Increased email verifications by 50,000+ monthly and login with email success rates by 12.5% (40->45%) by implementing additional API endpoints for verifying emails

Streamlined onboarding process for over 100 engineers by spearheading effort with engineering directors to document best unit and integration testing practices

Led migration of monolithic core A/B testing framework to a microservice architecture

2017 — 2017Computer Science MentorsJunior Mentor

2017 — 2017

Berkeley, California

Instructed weekly computer science tutoring sections of 5 people

Collaborated with 7 other mentors to organize course logistics, gather feedback, and develop strategies to improve teaching effectiveness

Education

2015 — 2019

University of California, Berkeley

BA

2015 — 2019

Experience+

Education

BA