Worked on various InfoSec, AppSec, SRE, infrastructure, platform, and IT initiatives as part of a very small engineering team supporting a much larger team of mobile phlebotomists. Used GCP, Terraform, TypeScript, Vanta, etc.

Designed, developed, and fully migrated to a new API keys system for microservices to communicate across VPCs. Closed multiple pentest vulnerabilities and did various other AppSec cleanup work. Overhauled a bunch of documentation and put together onboarding materials. Used Python (FastAPI and Flask), JavaScript (React), Terraform, and AWS.

Built a gRPC API in hardcore, functional Scala. Improved the development environment setup in bash using asdf. Overhauled a ton of the documentation.

Architect on the AppSec and Fraud TeamFixed a huge percentage of the vulnerabilities reported via HackerOne or pentesting assessments. Trained the rest of the company on AppSec topics via talks and blog posts. Overhauled and fixed our approach to XSS in user-generated content on the frontend. Was responsible for the Virus Scanner service which we used to scan user-uploaded content. Participated in various compliance efforts such as SOX and SOC 2.Architect for the Microservices PlatformMy two co-workers and I built the microservices platform for Udemy using AWS, EKS, Kubernetes, Python, Kotlin, gRPC, Spring Boot, Terraform, Ansible, make, etc. After the first year, we had 11 services running in our prod cluster. Led the choice of technologies, did consensus building, developed strategies for moving the monolith to microservices, wrote example services, and wrote most of the documentation for the platform.Architect (promoted from Principal Software Engineer) on Team FWorked on "frontend, frameworks, fast, and frickin' awesome things". Led the migration from require.js to Webpack on my own. My team as a whole led the successful migration from AngularJS 1.X to React, MobX, and modern JavaScript. On the backend, we used Python, Django, and MySQL. I also built the core of the isomorphic rendering engine.Wrote most of the developer documentation for web developers and onboarded most of the engineers who worked on the web app. Both of these things made me well-beloved among my co-workers.

Staff Education Engineer for Twitter UniversityDeveloped and/or taught many classes for Twitter University with a focus on core software engineering subjects. My favorite was a class called Best Practices for Software Engineers which was required for all new engineers at Twitter. Eventually, took over running Flight School Basics, the new hire orientation for engineers.Staff Software Engineer on the Capacity team in Infrastructure and OperationsDeveloped a custom supply chain management system to manage the flow of incoming servers. This was used to create the Allocation Plan, Master Production Schedule, Rack Plan, etc. Used Python, Django, MySQL, Linux, JavaScript, jQuery, and Apache Mesos.

Senior Developer Advocate for Dart within Chrome Developer RelationsGave talks about Dart around the world. Wrote lots of open source code. Produced lots of videos about Dart, even in Spanish. Wrote a "famous" blog post.Senior Developer Advocate for YouTube APIsGave talks about YouTube's APIs around the world. Wrote code samples in Python, Ruby, PHP, and Java (for Android). Produced lots of videos. Wrote lots of blog posts. Met with lots of high-end partners in person to get them to integrate with new YouTube APIs.For details, see: https://jjinux.github.io/resume/google.html

Lead a project as it moved from prototype to production via refactoring, performance testing, and scalability enhancements. Used Python and Twisted. Built various prototypes using Socket.IO, node.js, js.io, gevent, WebOb, Twisted, zeromq, Flask, Jinja2, Ruby, Rails, and MySQL.

Built fandor.com. Used Ruby, Rails, ActionScript, JavaScript, jQuery, MySQL, the Flash Media Server (FMS), Wowza, and BDD. Integrated with Boxee, Limelight, Facebook, and Roku. Made open-source contributions to LongTail Video (JW Player, a Flash video player).

Architected and built a general-purpose recommendation system similar to Amazon's system using Linux, nginx, MySQL, and Python.

Refactored the autocomplete subsystem which was written in Python.

Built a Facebook app called Free or Best Offer using Linux, MySQL, Ruby on Rails, and RFacebook.

Built foxmarks.com (the corporate website), login.foxmarks.com (the account management application), and my.foxmarks.com (used to view your bookmarks online) using Linux, MySQL, Python, Pylons, and Genshi.

Architected the user interface to configure the email gateway appliance, including centralized management and localization to eight languages. Built a web server named Glass that could run under stackless Python with coroutines. Was responsible for the common look-and-feel of IronPort applications across the company.My web application framework, Aquarium, was officially adopted across the entire organization and was in use at Cisco even a decade later. It was also mentioned in the book Oracle and Open Source.

Worked (sometimes in a team, usually alone) on a wide range of research and development projects using: Perl, Ruby, C, C++, sh, Jython, Tk, QT, KDE, Swing, Zope, Mason, mod_perl, IPv6, HTTP, SSL, XML-RPC, Linux, FreeBSD, XML, PGP, Apache, PostgreSQL, client/server programming, multi-threaded programming, peer-to-peer programming, and I18N. My work in the IPv6 working group was acknowledged in two RFCs.

Built Catholic Healthcare West's website using Python, MySQL, SQL Server, Apache, Linux, and Aquarium.

Worked on multiple e-commerce sites using PHP, MySQL, Solaris, and NT. Helped develop an e-commerce framework named Freetrade which was used by e-commerce sites even a decade later.

Tutored groups of three to fifteen students who were learning Turbo Pascal, C++, and x86 assembler.

Provided technical support over the phone to other members of Sun Microsystems using Solaris.