William Liu

Engineering Manager

Menlo Park, California, United States20 yrs 4 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in building privacy-first AI products.
Proven track record in leading high-impact product teams.
Strong background in mentoring and growing engineering talent.

Stackforce AI infers this person is a seasoned product leader in social media and mobile technology.

Contact

Skills

Core Skills

Product ManagementTeam LeadershipMobile DevelopmentProduct DevelopmentPerformance ImprovementAd DevelopmentWeb DevelopmentUser ExperienceVideo DevelopmentData MiningRecommendation SystemsLocation Services

Other Skills

WhatsApp CallingMentoringHiringVideo Call TechnologyVoice Call TechnologyWhatsApp Native CommerceE-commerce DevelopmentInstagram AdsArchitectural ImprovementsPerformance OptimizationUser EngagementUser AcquisitionData AnalysisC#Software Development

About

I am a product leader. My software engineering experience in backend, mobile and ML enables me to make the right decisions to ensure success of a product. My experience working with non-eng roles (Product manager, Designer, product marketing manager, user researcher, data scientist, operations etc) allows me to best leverage their expertise to create a product with market fit. My experience in interviewing different engineering roles and different types of interviews helps to bring the success hiring process to other companies.

Experience

20 yrs 4 mos

Total Experience

5 yrs 1 mo

Average Tenure

7 yrs 8 mos

Current Experience

3 roles

Engineering Manager

Jan 2025 – Present · 1 yr 3 mos · On-site

Build AI products, providing a great user experience.

Engineering Manager

Apr 2021 – Sep 2025 · 4 yrs 5 mos · On-site

Working on WhatsApp Calling
👆️ Leading WhatsApp Calling Mobile team. Shipped several high profile projects.
✨ Hiring and growing the team
👨‍🏫 Mentoring and growing engineers (both junior and senior engineers)
🌊 Drive product to success through organizational challenges. The team went through several managers changes, engineer changes, PM changes, Designer changes and XFN changes.
🛡️ Ensure the released product meets product, integrity and privacy requirements.
Shipped many projects. Here are samples
WhatsApp Call Links
WhatsApp 32-person Video Call
WhatsApp 32-person Voice Call

WhatsApp CallingTeam LeadershipProduct ManagementMentoringHiring

Software Engineer

Aug 2018 – May 2021 · 2 yrs 9 mos · On-site

👆️ Leading WhatsApp Native Commerce. Grow the product from a prototype to a released product with several iterations and beats expectation on key metrics.
👨‍🏫 Mentoring and growing engineers (both junior and senior engineers)
🌊 Drive product to success through organizational challenges. The team went through several managers changes, engineer changes, PM changes, Designer changes and XFN changes.
🛡️ Ensure the released product meets product, integrity and privacy requirements.
Shipped many projects. Here are samples
WhatsApp Shops Storefront
WhatsApp Catalog

WhatsApp Native CommerceProduct DevelopmentMentoringTeam Leadership

Instagram

Software Engineer

Aug 2014 – Mar 2018 · 3 yrs 7 mos · 1 hacker way, menlo park, ca

Lead Engineer on Instagram monetization products.
Build Ads products and do performance and architectural improvements on the app.
Shipped products:
Instagram Canvas Ads
Instagram Story Ads
Instagram Lead Gen Ads https://www.google.com/#q=instagram+lead+ads
Instagram In-app-browser
Instagram Quick View feature (aka 3d touch in Android) https://www.google.com/#q=instagram+3d+touch+android
Instagram Clickable Ads
Instagram Carousel Ads. http://techcrunch.com/2015/03/04/what-advertisers-want
Instagram Looping Video.
Instagram Video Ads.

Instagram AdsPerformance ImprovementArchitectural ImprovementsProduct Development

Microsoft

Software Engineer II

Jul 2006 – Jul 2014 · 8 yrs · Bellevue

Build Apps Recommendation system for Windows Phone 8. Build app search system for Windows Phone 8 and Windows 8 app stores;
Working on providing high accuracy, scalable and easy to use location service for Bing, Windows Phone 6.x, Windows Phone 7, Internet Explorer 9 and some next generation Microsoft Products.
Focusing on analyzing, mining and refining large scale data using unsupervised learning methods to provide first class location service that beats competitors' location service.
Utilizing Microsoft's large scale computation infrastructure, industry's frontier technologies and latest academic research to enable and improve the location service.
Mobile Messenger
Adaptive Rendering for Live Search Mobile
Message Delivery System

Recommendation SystemsData MiningLocation Services