# Helen Yu

> Product & Data‑Driven Software Engineer | 7+ years building scalable marketing and personalization systems at Meta | Driving customer success through ML & cross‑functional leadership

Location: Walnut Creek, California, United States
Profile: https://flows.cv/helenyu1

I’m a collaborative software engineer with over 7 years of experience designing and operating large‑scale products. At Meta, I owned backend systems processing millions of real‑time campaign events with 99.99% uptime. By introducing automated QA pipelines and an archival service that retired 100K+ inactive campaigns, I cut defects by 35%, accelerated releases by 20%, and lowered storage costs 15%.

I thrive on turning data into actionable insights—my work driving the first ML‑driven recommendations model delivered a +6.2% lift in campaign engagement and a +1.2% long‑term growth rate. I’m passionate about mentoring diverse teams, collaborating across engineering and marketing, and delivering customer‑centric solutions that scale. If you’re looking to build innovative products that engage millions, let’s connect!

## Work Experience
### Software Engineer (Product & Business Focus) @ Meta
Jan 2020 – Jan 2025 | Menlo Park, California, United States
• Built and operated backend systems processing millions of real‑time campaign events with 99.99% uptime.
• Introduced automated QA pipelines and validation, reducing defects by 35% and accelerating release cycles by 20%.
• Designed alternative onboarding architectures and an automated archival pipeline that retired 100K+ inactive campaigns, improving data hygiene 40% and cutting storage costs 15%.
• Partnered with cross‑functional teams to launch targeted outreach emails and refine path‑decision logic, reducing campaign launch lead time 20%.
• Developed rich audience‑builder tools using React, Hack/Hacklang and GraphQL.
• Led integration of the first ML‑driven recommendations model, driving a +1.2% lift in long‑term growth rate and +6.2% campaign engagement.

### Associate Software Developer @ InfoSys Ltd.
Jan 2018 – Jan 2019

### Lead Java Developer @ Paradyme Management Inc.
Jan 2017 – Jan 2018 | Maryland
Created proposal and lead team of 16 interns to develop mobile app. Coordinated biweekly sprints and monthly meetings with Greenbelt City's IT Manager and Head of Communications. Implemented functional Android app using Android Studios and iOS using XCode.


## Education
### Bachelor's degree in Computer Science
University of Maryland
Jan 2014 – Jan 2018


## Contact & Social
- LinkedIn: https://linkedin.com/in/helen-yu-747b4418b

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Source: https://flows.cv/helenyu1
JSON Resume: https://flows.cv/helenyu1/resume.json
Last updated: 2026-03-22