Nurazem Kaldybaev, Software Developer in Kyrgyzstan
Nurazem Kaldybaev

Software Developer in Kyrgyzstan

Member since November 30, 2013
Nurazem is a developer with extensive experience in building efficient, well-designed, and scalable web applications. He has built complex online commerce management applications responsible for products through their entire lifecycle.
Nurazem is now available for hire



  • Python, 7 years
  • JavaScript, 7 years
  • Ruby on Rails (RoR), 6 years
  • Ruby, 6 years
  • PHP, 4 years
  • PostgreSQL, 3 years
  • AngularJS, 2 years





Preferred Environment

OS X, Ubuntu, Sublime Text, iTerm, RubyMine, Git

The most amazing...

...thing I've coded is a mathematical algorithm to build an elastic projection from a linear projection to shape complex 3D objects.


  • Software Engineer

    2018 - 2019
    DeliveryHero Hungerstation (via Toptal)
    • Worked on introducing command and repository patterns to an existing Rails app in order to break down the app into manageable components.
    • Implemented new features in the GraphQL-based API used by the React front-end.
    Technologies: Ruby on Rails, GraphQL, React
  • Senior Software Engineer

    2017 - 2018
    Grubhub, Inc.
    • Developed a search system to search for orders, deliveries and couriers using Elasticsearch and Cassandra.
    • Created Apache Spark jobs to intake and ingest large sets of data into Elasticsearch and Cassandra as a backup system.
    • Maintained a central delivery operations service which manages all restaurants, markets, and couriers in the Grubhub system.
    Technologies: Java, Spring, Guice, Python, React, AWS SNS/SQS
  • Software Engineer

    2016 - 2017
    Zoomer Delivery, Inc. (acquired by Grubhub)
    • Created a recruitment funneling system for driver applicants.
    • Automated the process of driver application processing starting from the process of online application, background checks, contract signing, and finally creating a driver in the Zoomer system.
    • Developed multiple features to increase the efficiency of deliveries.
    • Created new features, improved app performance, and fixed bugs for the main Zoomer platform, which encompasses all of the day-to-day operations.
    Technologies: Ruby on Rails, Angular, Ionic, Python
  • Software Engineer

    2015 - 2016
    Cake, Inc. (via Toptal)
    • Developed a mobile application in Ember.js for finding new restaurants in a given area, adding reviews and ordering food.
    • Worked extensively with Google Maps JavaScript SDK to create a fast map view.
    • Modified server-side logic in Node.js to accommodate changes in requirements for the mobile app.
    Technologies: Ember, Node, Cordova, PhoneGap
  • Software Engineer

    2014 - 2015
    Intercom, Inc.
    • Developed a global user events feed and user profile REST API using Ruby on Rails.
    • Created client-side global user events and user profile applications using Ember.js.
    • Created Intercom apps for the Salesforce and Zendesk platforms.
    • Added integration for GitHub issues and Intercom conversations.
    • Built a PHP and Ruby client for the Intercom API.
    Technologies: Ruby on Rails, Ember, Node.js, Backbone.js, Java, Dropwizard, PHP
  • Web Developer

    2013 - 2014
    Inverse Point
    • Developed an entire inventory lifecycle management software system for a fashion company (Mr. Draper LLC).
    • Created internal accounting software using PHP for a public sector company with branches in more than 100 countries.
    • Developed software for fleet, sales, and customer relations management using Ruby on Rails and AngularJS for car rental and sales companies in UAE.
    • Created a CRM module for a consulting company based in Dubai using Ruby on Rails.
    • Developed an online commerce platform for an electronics retail company based in Dubai.
    Technologies: Ruby on Rails, AngularJS, PHP, Redis, MySQL, Memcached
  • Software Developer

    2009 - 2011
    Vector Foiltec GmbH
    • Implemented an AutoCAD module to automate generation of construction parts from a building model using Lisp.
    • Developed a C++ plugin for AutoCAD to create a geometric projection of a 3D object to the plane.
    • Created a reusable VBA module for calculation of stability wires for large structures.
    • Supported an existing automation tool for AutoCAD to dissect construction parts for machinery,.
    • Developed a small module for automation of the Leipzig Zoo roof construction.
    Technologies: Lisp, C++


  • Intercom (Development)

    I worked on global user events and user profile parts of the Intercom application. I also created integrations with third-party services such as Zendesk, Salesforce, and GitHub.

  • Mr. Draper (Development)

    An inventory management platform built using Ruby on Rails. It is integrated with Salesforce as a CRM back-end and Payfort as a payment processor. The system handles the whole product lifecycle, starting from its creation in the warehouse through payment handling and delivery to the customer.

  • MPremiere Box Office (Development)

    I developed a complete box office software system for ticket sales and event management. The system is built using PHP and makes use of a CashU payment API to process credit card payments.

  • Fleetroller (Development)

    Complete fleet, sales, and customer relations management software developed using AngularJS, Ruby on Rails, MySQL, and Redis. It is specifically tailored for Gulf Cooperation Council countries.

  • Grubhub Delivery Operations Center (Development)

    A central system that manages restaurant working hours, market blackouts, courier communication and scheduling. One of the largest features I have worked on is the functionality of automatically managing the number of drivers depending on the market supply/demand.


  • Languages

    Ruby, Java, Python, JavaScript, PHP, Go, C++
  • Frameworks

    Ember.js, AngularJS, Ruby on Rails (RoR), Angular, Express.js, Django, React Native, Sinatra, Flask
  • Libraries/APIs

    Zendesk API, Intercom API, Facebook API, Salesforce API, Node.js, PayPal API, React
  • Tools

    IntelliJ, Vim Text Editor, Git, Sublime Text, RubyMine, Zen Coding
  • Paradigms

    REST, Agile Software Development, Behavior-driven Development (BDD), Test-driven Development (TDD), Functional Programming
  • Platforms

    MacOS, Linux, Salesforce
  • Storage

    MySQL, Redis, MongoDB, PostgreSQL
  • Other

    Applied Mathematics, Mathematics, Software Development


  • Bachelor of Science degree in Applied and Computational Mathematics
    2008 - 2011
    Jacobs University - Bremen, Germany

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