Open Heart Capital is a crypto quantitative fund-of-funds with exceptional returns that donates its performance allocation to regenerative impact causes.See OpenHeart.capital for an offering memorandum.

Developed a data warehouse from scratch, using Google BigQuery + Apache Airflow. Solution was scalable, cost-effective, and low-maintenance, meeting Muso's needs as a resource-constrained non-profit. It:- Ingests Muso's primary data sources with an automated Extract, Transform, Load (ETL) pipeline- Reports and visualizes data with BI (Business Intelligence) tools- Applies quality control / quality assurance processes- Assigns and audits user group privileges- ETL pipeline monitoring with Airflow, deployed on Google Cloud- Data organized and documented- Integrates with other org processes and needsPerformed technical evaluation of BigQuery vs other tools. Delivered training and documentation to team. Successfully beta tested. Pending org-wide launch in 2021.

Learned, explored, travelled, and had fun:- Biked the pacific coast. Drove from coast to coast. Lived in a meditation center for 1+ year. Digital nomad 1+ year.- Taught entrepreneurship at California supermax prisons with Defy & Hustle 2.0- Taught empathy, courage, creativity, and authentic communication to students and adults in China- Hosted bi-weekly TED-esque talks- Lived in an intentional community (Consciousness Hacking in San Carlos), hosting and being part of regular NVC practice groups ("T-Groups")- 20+ classes and 100K+ spent on personal development and emotional intelligence trainings, including Landmark, Stanford Interpersonal Dynamics (COM19, "Touchy-Feely"), Stanford Compassion Cultivation Training, Art of Circling (active listening), Luminous Awareness (energy healing), ISTA, men's groups, integral leadership, embodiment, dance, bodywork, coachingWork:- Part-time full-stack engineering at Mixpanel, Cresta AI, Learning Equality- Developed prototype mobile app with Jia Jiang, author and founder of Rejection Therapy- Coached bootcamp graduates to land their first engineering jobs

I joined 2011 an intern, and left 2017 full-time. The company grew from 8 - 200+ in this time.As an intern, I conceived, developed, and deployed a project that significantly increased learning efficiency. I wrote a viral blog post (40K+ views in 48 hrs, front page HN + Reddit, TEDx talk). We became known as THE place to work that combines large-scale social impact with interesting tech challenges. We were able to raise our bar and hire top talent — industry leaders, library creators, and book authors.I've worked across the stack, from infrastructure (dev-ops) to data analytics (data eng) to personalization + game mechanics (full-stack) to our Android app. I led the redesign of the homepage which led to a 1MM+ learning minutes / month increase. I was pivotal in shaping the culture, promulgating healthy engineering values while promoting social cohesion amongst the team, welcoming new employees and interns.

http://uwflow.com is a social course planning website for Waterloo with reviews, schedule sharing, and advanced course search. We have 40K+ users and 1MM+ pageviews per month.- Worked with Sass, Bootstrap, Require.js, Backbone, Redis, Mongo, Python + Flask, AWS- Coding, UI design, system administration, A/B testing, emails, pitching, team planning

Part of the "Tech Surge"​ team recruited by The White House to resuscitate the launch of healthcare.gov. Worked on frontend web dev.

- Led the development and design of our main user-facing product: fraud analysis console (shows a customer which of their users are likely to commit fraud and why)- Set up the frontend stack consisting of Backbone.js, Marionette.js, Handlebars.js, and others- Redesigned home page, jobs page, pricing page, blog- Mentored an intern during summer; interviewed engineering candidates

- Presented a TEDx talk on my previous work- Full-stack data analytics: Apache Hive for data warehousing and Backbone.js and Bootstrapfor frontend dashboard- 3 hackathon projects in 24hrs (all shipped): real-time map of users; 2x video speed; RSS feed- Independently conceived and wrote continuous integration & deployment tool: github.com/Khan/gae-continuous-deploy- Organized bike trip from Mountain View to SF; helped new interns; popular CS hack project

- Proposed and implemented machine learning model for new proficiency model. Blog post(Hacker News frontpaged): http://david-hu.com/ka-ml.html- Increased student proficiencies by 20%, hint usage by 55%, review problem usage by 22%- Data visualization in Python; map reduce scripts; UI design; see http://david-hu.com/ka-internship-post-mortem.html- GitHub commits (http://david-hu.com/ka-github.html) and Kiln changesets (http://david-hu.com/ka-kiln.html)

- Implemented map reduce algorithms to cluster near-duplicate documents in a web crawl- Optimized runs on Amazon Elastic MapReduce

Designed and implemented a multi-threaded cross-platform automation framework for Google Earth

- Implemented product features for Google Mobile Docs- Derived cubic Bezier math for web-based smooth scrolling using CSS 3D transforms- Optimized speed by exploiting JavaScript implementations and improving data structures