Hi! I'm William Harris. I build software real users depend on, from scrappy startups like early OpenSea to 300MM+ user systems at LinkedIn.
I'm a full-stack product engineer with 14 years building software at scale on web and mobile, for Silicon Valley tech giants (ex-LinkedIn), VC-backed startups (ex-OpenSea), and open source projects (cncf/cnf-testsuite).
Across that career I've shipped cross-platform:
- from pre-launch products all the way to web scale
- with venture-backed startup teams totaling $700M+ raised, from two-person seed stage to 100s of engineers at Series D
- and inside LinkedIn's 4000+ engineering org, through the Microsoft acquisition, where I shipped the version of Linkedin.com/jobs you use today
Forward-deployed engineer, since before everyone wanted it
Forward-deployed engineers embed with client teams and shipping production software against their real constraints, not a tidy spec. It's suddenly the role every startup and AI lab is racing to hire for. I've been doing it daily since 2022.
At BCGX, the tech build-and-design unit of BCG, the pitch is simple: hire a top FAANG / MANGA-caliber team to overhaul your stack, take a product from design to scale, or AI enable your business. That's the team I work with. So far I've:
- Been lead engineer on biz-dev proposals for projects sold for $6M+ to clients in energy and med-tech.
- Anchored the backend across 6 teams and 30+ engineers on a Snowflake pipeline processing 10M+ datapoints/day, saving customers $10MM to $20MM/yr in transportation logistics.
- Built a weekly sentiment-analysis pipeline against a graph database of the entire energy economy, later presented to an executive department of the federal government.
- Led an internal team to build one of BCGX's first multi-agent generative-AI applications applied to content generation.
OpenSea
One of the first 50 employees at OpenSea, where I built the foundations of social integrations with Twitter, Instagram, and Discord for every NFT collection and account, plus the social-metadata backend powering trust-and-safety analytics from imported profiles.
Open source: cnf-testsuite
Founding core maintainer of cncf/cnf-testsuite, a Kubernetes test suite (written in Crystal) for the CNCF that assesses whether k8s apps in the $1.74T telecom industry can scale. It has 175+ stars on GitHub, and I gave a talk about it at the 2021 Crystal 1.0 Conference. Built in partnership with vulk.coop, a co-op I help build with.
More than engineering
I taught myself to code in high school, earned a B.S. in Computer Science from Georgia Tech, and started the consulting business I still run today while in college, so I've worn most of the hats around shipping software as a business, not just building it. I've sold as key sales engineer in designing and communicating the value of solutions companies pay millions of dollars for. I've also marketed (campaigns for 300+ person social events in San Francisco), written (blog posts with 10,000+ views), and advised startups on product and engineering strategy.
Side projects and mentoring
I keep building. SnapCrap, a civic-mapping app I shipped with friends in 2017, went hyperviral mapping a messy civic problem to 80,000+ downloads across 70+ countries with press from 7+ intenationally recognized outlets. I also maintain CalendarNotification, an open-source Android reminder app. I also enjoy mentoring, many with successful tech careers, and a few mentees have gone on to raise venture capital.