Rudolf Olah

5.0

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US$18.00

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ABOUT ME

Web Development Expert (Django, Ruby on Rails, React)

I've been programming for a long time and have used C/C++, Java, Scheme, Common Lisp, Smalltalk, JavaScript, PHP and all sorts of frameworks and libraries. I have tutored university and college students in computer science, C/C++, SQL and databases.

More recently I have worked on large-scale backend infrastructure in Ruby on Rails for liveops video games and am currently working on the React frontend and Django backend for a fintech product.

English

Eastern Time (US & Canada) (-05:00)

Joined August 2016

EXPERTISE

Ruby on Rails

6 years experience

Worked on large-scale REST API Rails websites for an event ticketing site and for Zynga, one of the largest mobile/social games companies...

Worked on large-scale REST API Rails websites for an event ticketing site and for Zynga, one of the largest mobile/social games companies on the planet.

Memcache AWS PostgreSQL Ruby on Rails Ruby SQL MySQL

JavaScript

5 years experience

I recorded an hour long video course for PacktPub on how to use the AngularJS framework with unit tests and integration/acceptance tests....

I recorded an hour long video course for PacktPub on how to use the AngularJS framework with unit tests and integration/acceptance tests. As a contractor I worked on an AngularJS site for managing pharmacy appointments and on another web app for WebRTC video chat rooms. For a personal project I integrated AngularJS with Firebase and Google Calendar to be able to generate invoices. In the last year I have worked with Ember.js and React to develop an event ticketing website. In previous jobs I have worked extensively with jQuery and jQuery plugins. On one site I developed a QA-assistance tool for checking the results of a product survey web app.

Ember.js Node.js Angular

Ember.js Node.js Angular jQuery React

Angular

2 years experience

Angular AngularJS ng-repeat

Django

5 years experience

I've worked in marketing agencies that have used Django for marketing and advertisement campaigns that incorporated Facebook tabs, REST A...

I've worked in marketing agencies that have used Django for marketing and advertisement campaigns that incorporated Facebook tabs, REST APIs, PostgreSQL and jQuery.

Django Haystack Python Django admin

Django Haystack Python Django admin Django cms

Emacs Lisp

2 years experience

I have worked on multiple plugins and modes for Emacs such as emacs-sos for searching StackOverflow and angularjs-mode. The project I'm m...

I have worked on multiple plugins and modes for Emacs such as emacs-sos for searching StackOverflow and angularjs-mode. The project I'm most proud of is org-doing which lets users quickly record the tasks that they are working on during the day, and also includes Emacs-Cucumber unit tests. For every single job I have had, I always write custom emacs-lisp functions to help me do my work faster. The functions are usually for automating or for searching through code.

Emacs

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SOCIAL PRESENCE

Community Posts

Useful Tools and Code for process watching, checking github traffic, and terraform linting

proc-watch (https://github.com/rudolfolah/proc-watch): find out what is using the most CPU and memory When you are running multiple EC2 instances or running a shared environment, it is useful to...

Build Your Own Node.js Search Engine for Github Wikis

In this article, we're going to learn how to use Node.js to build a search engine for Markdown-based wikis like the Github wiki. =

Automating Simple Tasks with Scheme (Competing with Perl, Python and Ruby)

Writing Scheme/Lisp scripts to automate simple tasks that are usually automated with Perl, Python or Ruby

Quick Tips

Have a lot of images on your website? Taking too long to load? Use JAIL!

When you have a lot of images on a webpage you'll find that it takes longer for a page to load. However, a user to your website won't be able to see all the...

EMPLOYMENTS

Senior Software Developer

Zynga

2017-05-01-2021-03-01

Developing new features and supporting backend API services for large-scale cloud-based games using AWS and Ruby on Rails.

SQL

Ruby on Rails

jQuery

SQL

Ruby on Rails

jQuery

Redis

Memcache

React

Software Developer

Universe

2015-10-01-2017-05-01

Worked with Ember.js, jQuery, Handlebars.js, Bootstrap, Ruby on Rails, Node.js on an event ticket platform. Created a bridge between R...

Worked with Ember.js, jQuery, Handlebars.js, Bootstrap, Ruby on Rails, Node.js on an event ticket platform. Created a bridge between React.js and Ember framework to be able to use React componets within Ember (including two-way data binding). Integrated and implemented Optimizely A/B testing Integrated Sift for fraud checking of accounts During internal hackathons, implemented a video embed element using oEmbed, and implemented mobile phone delivery of tickets using the Twilio API, implemented a basic GraphQL server integration with React.js, worked with Elm and Node.js to implement a voting/polling application for internal discussions. Ported a major section of the website, the dashboard, to a newer version of Ember.js during the effort to split the web app into multiple micro-services. Participated in Agile process with Pivotal tracker and Zenhub, reviewed code with Github pull requests. Collaborated on setting up the unit testing and acceptance testing infrastructure for the web app frontend using QUnit and other Ember.js tools. Streamlined the onboarding process by setting up virtual machines for the micro-services architecture with VirtualBox and Amazon AWS EC2 instances. Worked on a redesign of the dashboard in collaboration with managers, product designers and client sales support, a prominent user-facing set of features and web pages. Implemented the hooks for Zapier API integration. Updated API documentation for 3rd party developers, created example code using Node.js and OAuth for 3rd party developers to work with. Mentored newer developers in an informal way to onboard them. Updated internal wiki with onboarding documentation to grow the knowledge base of the team. Updated Fastly CDN configuration for web services and implemented Queue-It waiting queue for ticket sales.

Ruby

Ruby on Rails

React

Ruby

Ruby on Rails

React

Ember.js

Software Developer

CanadaHelps

2015-01-01-2015-10-01

Worked on implementing a project that was in development for over a year and pushed it toward the finish line and a launch. Maintaine...

Worked on implementing a project that was in development for over a year and pushed it toward the finish line and a launch. Maintained the software afterward. Worked on the design and implementation of a new project using Django, Django Rest Framework, ReactJS with some SPA (Single Page Application) components. Integrated Django web app with .NET/C# backend using HTTP/REST and RabbitMQ message passing.

Python

Django

React

Python

Django

React