Alex Katkova, Developer in San Francisco, CA, United States
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Alex Katkova

Verified Expert  in Engineering

Software Developer

San Francisco, CA, United States
Toptal Member Since
July 13, 2022

Alex is a senior Ruby on Rails developer with extensive experience building APIs, working with and extending 3rd-party integrations, and building proof-of-concept software. Alex is pragmatic and detail-oriented, leverages the right tools for the job, and delivers projects on time.


Ruby, Ruby on Rails 5, Heroku, ActiveAdmin, Ruby on Rails (RoR), APIs, Git...
Ruby on Rails 5, Ember.js, Git, MySQL, GitHub, Back-end, Full-stack, HTML5...
Java, JavaScript, API Documentation, Code Review




Preferred Environment

MacOS, Atom

The most amazing...

...project I've completed is an SMS chatbot integrated with the Thanx platform, allowing users to access Thanx without a mobile application.

Work Experience

Senior Software Engineer

2017 - 2022
  • Architected and built Thanx's first public API, allowing the company to acquire customers that were looking for a custom experience.
  • Led the back-end component of an online ordering integration with OLO, allowing Thanx to expand the reach of the product and leverage a new source of revenue.
  • Worked extensively with customer success to build and refine internal tooling via ActiveAdmin.
  • Wrote a chatbot powered by the Twilio API that allowed a user access to their Thanx data via SMS.
  • Led an upgrade to integration with Visa's SOAP API.
Technologies: Ruby, Ruby on Rails 5, Heroku, ActiveAdmin, Ruby on Rails (RoR), APIs, Git, Amazon Simple Email Service (SES), Amazon S3 (AWS S3), Stripe, PostgreSQL, MySQL, SQL, Twilio, GitHub, Amazon Web Services (AWS), REST APIs, Back-end, Full-stack, API Integration, New Relic, HTML5, Upgrades, CSS3, RSpec, Sidekiq, Devise, Elasticsearch, Ruby Gems, Redis, Test-driven Development (TDD), API Documentation, Mailchimp, Mandrill, HTML, Estimations, CSS, Code Review, Agile, React, SaaS, Microservices, Snowflake, Looker

Software Engineer

2014 - 2016
  • Contributed to a messaging web app designed for hotel employees to interact with customers.
  • Developed an integration with Oracle Opera property management system.
  • Built a tool to automate translations for UI elements, reducing the time required for developers to run new words or phrases through Google Translate.
Technologies: Ruby on Rails 5, Ember.js, Git, MySQL, GitHub, Back-end, Full-stack, HTML5, CSS3, RSpec, Sidekiq, Elasticsearch, Redis, Bootstrap, API Documentation, Mailchimp, Mandrill, HTML, Estimations, CSS, Code Review, Agile, SaaS

Software Engineer

2011 - 2014
  • Developed peer-to-peer payment features, such as sending money, adding money to a prepaid account, and withdrawing money to a bank account for Google Wallet.
  • Contributed to a UI redesign of the Gmail Web UI.
  • Moved dozens of Gmail UI experiments to launched or deprecated, which involved extensive cleanup and quality assurance.
Technologies: Java, JavaScript, API Documentation, Code Review

Thanx Public API
I was the architect and chief contributor to the Thanx public API. The documentation can be found at the project's URL.

This API supports a third-party website or mobile client that wishes to register users with loyalty programs run by Thanx and sign them up for email marketing.
2007 - 2010

Bachelor's Degree in Computer Science

Carnegie Mellon University - Pittsburgh, PA, USA


REST APIs, Sidekiq, Twilio API, Stripe, Devise, React


GitHub, RSpec, Looker, Git, Mailchimp, Atom, Amazon Simple Email Service (SES)


Ruby on Rails 5, Ruby on Rails (RoR), Ember.js, Bootstrap


Ruby, JavaScript, SQL, HTML5, HTML, Snowflake, Java, CSS3, CSS


Mandrill, Heroku, Twilio, Amazon Web Services (AWS), New Relic, MacOS


Redis, MySQL, Amazon S3 (AWS S3), PostgreSQL, Elasticsearch


Test-driven Development (TDD), Agile, Microservices


ActiveAdmin, APIs, Back-end, API Integration, Ruby Gems, API Documentation, Code Review, SaaS, Full-stack, Upgrades, Estimations

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