Senior Software Engineer
2017 - PRESENTInstructure- Developed a new assessments platform using modern web technologies and a focus on accessibility, scalability, and internationalization.
Technologies: React, Ruby on Rails (RoR), RubyFull-stack Developer
2016 - 2016OpenCraft- Worked on MIT and Harvard's Open edX MOOC platform.
- Collaborated with a completely remote team.
- Worked on an open source project (contributions can be found on GitHub).
- Helped to develop a tool to deploy and manage Open edX sandboxes on OpenStack virtual machines.
Technologies: Selenium, Ansible, MySQL, DjangoLead Back-end Developer
2014 - 2015Playlab Games- Recruited and managed a team of eight developers.
- Scaled Ruby on Rails API back-ends to handle thousands of requests per second from 20+ million users.
- Split a legacy Ruby on Rails monolithic app into five separate microservices, improving development speed and maintainability.
- Deployed a Cassandra cluster allowing a new title to scale horizontally in response to rapidly growing traffic.
- Built an extract-transform-load (ETL) framework in Ruby for game analytics.
Technologies: Cassandra, Redis, PostgreSQL, MySQL, Node.js, Ruby on Rails (RoR), RubyDeveloper
2012 - 2013Arachnys- Built a distributed web crawler using Python and Gevent.
- Managed an Elasticsearch cluster storing 100+ terabytes of crawled pages.
- Built a web scraping framework in Python for developing targeted scrapers.
- Developed an API back-end for running searches using Django and Celery.
- Implemented a web front-end using CoffeeScript and Backbone.js, styled using Less.
Technologies: Less, CoffeeScript, Backbone.js, Elasticsearch, Redis, PostgreSQL, Gevent, Celery, Django, Python
Omar Khan
Software Developer in Chicago, IL, United States
Member since September 6, 2015
Omar is a software engineer specializing in full-stack web development. He has many years of experience working with technologies such as Python, Ruby, and JavaScript. Omar is passionate about his work and diligent about writing code that is clean, readable, and well-tested.
Omar is now available for hire
Portfolio
- InstructureReact, Ruby on Rails (RoR), Ruby
- OpenCraftSelenium, Ansible, MySQL, Django
- Playlab GamesCassandra, Redis, PostgreSQL, MySQL, Node.js, Ruby on Rails (RoR), Ruby
Experience
- Python 11 years
- Django 10 years
- JavaScript 9 years
- Node.js 8 years
- Ruby 5 years
- Ruby on Rails (RoR) 5 years
- Docker 5 years
- React 4 years
Availability
Part-time
Preferred Environment
Git, Vim Text Editor, Unix
The most amazing...
...project I have worked on is a specialized search engine combining crawled and indexed pages with on-demand web scrapers.
Employment
Experience
- Mind the Gaphttp://omarkhan.me/london-tube-income/
Inspired by a feature in the New Yorker, this visualization uses D3 to show income inequality along London tube lines.
- CoffeeDochttps://github.com/omarkhan/coffeedoc
A tool to show useful API documentation for complex class hierarchies spread across multiple CoffeeScript source files. Used by some major projects in the CoffeeScript community.
Skills
Languages
Ruby, JavaScript, Python, CoffeeScript, LessFrameworks
Redux, Ruby on Rails (RoR), Django, Flask, SeleniumLibraries/APIs
React, jQuery, Backbone.js, Node.js, GeventOther
Software Development, Web DevelopmentTools
Vim Text Editor, Git, Celery, Ansible, MercurialParadigms
Agile Software Development, Object-oriented Programming (OOP), Functional ProgrammingPlatforms
Docker, Linux, Amazon Web Services (AWS), UnixStorage
Relational Databases, Redis, PostgreSQL, MySQL, SQLite, Cassandra, Elasticsearch
Education
- Bachelor's Degree in Economics, Politics, and International Studies2005 - 2008Warwick University - United Kingdom
