Resume

References available upon request. Email me at cjlarose@gmail.com

Experience

Designed and implemented a SOA microservice with a JSON HTTP REST API for recent activity feeds using AWS SQS to handle over 1-million writes per day
Worked to transition a SaaS B2B2C application from using a single MySQL database node to partitioning customers onto several nodes to meet the demands of a quickly-growing business
Developed an RFC 6749-compliant OAuth 2.0 server for use with mobile (iOS and Android ) clients, as well as for communication among internal services
Extracted reusable modules from a monolithic application into libraries for use in new microservices
Lead an initiative for engineering and product management to cooperate in redefining the authorization models used in SaaS application in an effort to simplify the implementation and create a user experience that best matched what customers needed
Regularly performed phone screens and on-site technical interviews for engineering candidates
Made various performance improvements using data collected by NewRelic and by local profiling with RubyProf

Researched and implemented HTML5 WebSockets integration, dramatically reducing the number of HTTP requests made for updating activity feeds, unread counts, and in-app reminders
Implemented a TOTP (Time-Based One-time Password)-based system for use with multi-factor authentication including database schema design, HTTP request handling, and pages presented to users
Optimized memory usage for data exports using lazy data-fetching
Wrote unit tests for new database models and controllers as well as view tests with Selenium WebDriver

Developed a single-page web application for a service that allowed bioinformaticians to manage cloud resources (instances, images, volumes) deployed to a private OpenStack cluster
Developed an idiomatic pure-Python client implementation for a distributed filesystem server (iRODS), which has since been adopted as the official Python client for the project
Created a web application that allowed browsing a collection of publically-available datasets using the aforementioned iRODS client
Migrated a non-trivial application frontend from unstructured jQuery to Backbone.js and later again to React.js and Flux with a modern build system (Gulp)
Implemented agent-oriented monitoring for OpenStack instances using Nagios and Graphite

Rubocop #4265: Require space before between method name and argument
AWS mock server #827: Fix generated SQS queue URLs
facebook/jscodeshift #102: Fix process disconnection bug
NodeJS Kafka Client #50: Simplify use of promises
Netflix/falcor #743: Documentation changes
cjlarose/webmock-net-http-headers-bug: Bug report for false positives in HTTP mocking library
pyjwt #39: Add support for bytes-typed secret keys for JWT signatures
http-kit #19: Documentation changes
2fa_example #2: Fix type conversion bug
Reddit-Enhancement-Suite #225: Gallery image preloading
Meetup.com PHP Client #3, #4, #5: OAuth authorization code support

deJong Attractor Visualization: ClojureScript, WebGL
weiqi.js: JavaScript implementation of Go (board game) using immutable data structures
argon2-ffi: NodeJS bindings for argon2 (password hashing library)

Languages: Ruby, JavaScript (ES6/ES2015), Python, Java, Clojure
Frameworks & Libraries: Ruby on Rails, Django, Kafka, Falcor, React, Redux, Backbone.js, jQuery
Services: Amazon Web Services SQS, S3, EC2, ELB
Datastores: PostgreSQL, MySQL, Redis

Completed a Bachelor's of Science in Computer Science with a minor in Mathematics with honors (GPA: 3.684). Honors Thesis: Micro-Specialization in Multidimensional Connected-Component Labeling.

cjlarose.com
(520) 780-1900