Haydn Vestal, Software Architecture Developer in Austin, TX, United States
Haydn Vestal

Software Architecture Developer in Austin, TX, United States

Member since April 7, 2015
Haydn has a wide variety of experience across companies from a two-person startup to Goldman Sachs and Google. His area of greatest consulting expertise is small- to mid-stage startups, but he also has experience with automated trading and Android development.
Haydn is now available for hire


  • TinyChain
    Rust, Python 3, System Architecture, API Databases, APIs, Concurrency...
  • Google
    Google Cloud Spanner, Python, C++, Java
  • Goldman Sachs
    MongoDB, Apache Tomcat, Java



Austin, TX, United States



Preferred Environment

Git, Python, Java, Rust, IntelliJ, Linux, CLion

The most amazing...

...product that I've worked on is Google Jamboard, the first hardware product from GSuite.


  • Founder

    2020 - PRESENT
    • Developed a cloud service runtime featuring automatic cross-service transactions, automatic concurrency, and automatic GPU acceleration.
    • Created a Python client that cross-compiled Python application code to TinyChain's native JSON representation.
    • Built a self-sustaining business by offering custom software design and development services.
    Technologies: Rust, Python 3, System Architecture, API Databases, APIs, Concurrency, GPU Computing, Microservices, Machine Learning, Neural Networks
  • Software Engineer

    2015 - 2020
    • Developed a low-energy Bluetooth (BLE) communication protocol for Google Jamboard and Android and iOS Jamboard apps.
    • Designed and implemented customer identity authorization for Google Jamboard.
    • Developed the tools needed to keep Google's fleet of videoconferencing devices up and running on a day-to-day basis.
    Technologies: Google Cloud Spanner, Python, C++, Java
  • Associate

    2013 - 2015
    Goldman Sachs
    • Worked on Orbit Suite, Goldman's set of productivity apps: https://www.wsj.com/articles/goldman-sachs-to-spin-out-mobile-phone-software-projects-into-separate-venture-1445981960.
    • Developed the web version of Orbit Drive, Goldman's internal file-sharing app.
    • Developed the Android version of Orbit Drive, Goldman's internal file-sharing app.
    Technologies: MongoDB, Apache Tomcat, Java
  • Software Engineer

    2012 - 2013
    SNAP Interactive
    • Supported one of the most popular dating apps on Facebook.
    • Maintained and improved a high-traffic (~70 million users) service running on Linux/Apache/PHP/MySQL.
    • Spearheaded a major project to re-architect a search index/matching algorithm.
    • Created a machine-learning tool able to inform a user if they try to send a message which is unlikely to generate a response.
    • Went from almost 0% to almost 100% unit test coverage.
    Technologies: Linux, Apache, Memcached, MongoDB, MySQL, PHP
  • Software Engineer

    2011 - 2012
    • Maintained and expanded Hotlist, a geo-social event aggregation startup.
    • Wrote a data ingester in Python to match data from Facebook Events, Google Maps, Foursquare, Citygrid, and more.
    • Participated in the re-architecture of the database deployment.
    • Wrote a machine-learning tool to match address data in different formats.
    • Wrote a machine-learning tool to identify duplicate venue and event records.
    Technologies: Linux, Solr, MongoDB, MySQL, Python
  • Senior Engineer

    2009 - 2011
    W3, Ltd.
    • Hired as a junior web developer and promoted to lead developer within a year.
    • Managed a team of five developers on one of the world's top 100 websites by traffic.
    • Re-architected Cron-based application services to event-driven asynchronous processing.
    • Scaled the application to support nearly 2x traffic growth.
    • Coordinated with a global team to manage technical updates to the site across nineteen countries and five languages.
    Technologies: NGINX, Xapian, Memcached, MySQL, PHP, JavaScript, HTML
  • Web Developer

    2008 - 2009
    Protect America, Inc.
    • Maintained a public-facing eCommerce website for a large home-security merchant.
    • Developed an internal application to support the sales department.
    • Developed an internal application to support the network marketing program.
    • Implemented a variety of site features and updates.
    • Participated in planning future architecture and features.
    Technologies: Linux, Apache, MySQL, PHP, JavaScript, HTML
  • Student Web Developer

    2007 - 2008
    University of Texas
    • Maintained the official website of UT's Division of Housing and Food Services.
    • Implemented a new website to support DHFS's diversity efforts.
    • Developed tools to dramatically improve site security.
    • Provided excellent technical support to DHFS users.
    • Contributed to the assessment of new technologies and solutions.
    Technologies: Linux, Apache, Oracle, PHP


  • Autotrader

    An automated stock-trading program developed to use machine learning and sentiment analysis to generate trading signals.

  • 3D-printable Wind Turbine

    Not really a software project, but still, now you can download a wind turbine!


  • Languages

    Rust, Python, Java, PHP, C++, HTML, JavaScript, Erlang, Python 3
  • Paradigms

    Rapid Prototyping, Agile Software Development, Microservices, Functional Programming, DevOps
  • Storage

    MySQL, Xapian, Google Cloud Spanner, Memcached, MongoDB, API Databases
  • Other

    Prototyping, Software Architecture, System Architecture, Lean Startups, OpenSCAD, APIs, Concurrency, GPU Computing, Machine Learning, Neural Networks
  • Platforms

    Linux, Oracle, Eclipse, Amazon EC2, Android, Amazon Web Services (AWS)
  • Libraries/APIs

    Google API, Facebook API
  • Tools

    Apache Tomcat, Apache, NGINX, Git, EAGLE, Ansible, Solr, IntelliJ, CLion


  • Coursework towards a Degree in Computer Science
    2007 - 2008
    University of Texas - Austin
  • Coursework towards a Degree in Chemistry
    2005 - 2006
    New York University - New York, NY

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