Eyüp Atiş, Developer in London, United Kingdom
Eyüp is available for hire
Hire Eyüp

Eyüp Atiş

Verified Expert  in Engineering

ActiveAdmin Developer

London, United Kingdom
Toptal Member Since
August 14, 2018

Eyüp is a seasoned software developer with over six years of hands-on experience with startups and digital agencies. He mainly specializes in web technologies such as Ruby, Ruby on Rails, Ember, and React, but he's also curious about mobile app development. Eyüp has worked across the stack, volunteered to mentor at Rails Girls Ankara, is active in the Turkish Linux community, and has the ability to lead teams.



Preferred Environment

SourceTree, PostgreSQL, Sublime Text, MacOS

The most amazing...

...project I've worked on was Paraşüt, an online bookkeeping app for small businesses. The number of requests per minute and general project complexity was high.

Work Experience

Software Developer

2017 - PRESENT
  • Refactored a substantial Ember.js 1.x app to Ember.js 2.x.
  • Developed a UI library for use in different Ember.js projects.
  • Developed an API (Ruby on Rails) that conforms to the JSON-API specifications.
Technologies: Ember.js, Ruby on Rails (RoR)

Lead Developer | Technical Manager

2016 - 2017
Levent Ofis
  • Constructed several MVPs, startups, and small web applications with Ruby on Rails.
  • Developed an in-house boilerplate project for speeding up the development of new applications.
  • Built three in-house startups and two customer startups.
  • Implemented a video chat, a messaging feature, and screen-sharing application by using OpenTok.
  • Implemented a payment module via İyzico which is a Turkish payment gateway.
  • Worked as a full-stack developer, implementing both the front-end with a responsive design and the back-end.
  • Prepared offers for potential customers with the details of project milestones, developer/day estimations, and the project budget.
  • Took insights and feature request from customers, analyzed them, and prepared the issues on Trello for the other teammates.
  • Deployed and maintained applications on both Heroku, AWS Elastic Beanstalk, and some VPS providers.
Technologies: Socket.IO, React, Ruby on Rails (RoR)

Ruby on Rails Developer

2013 - 2016
  • Developed two products with agile methodologies and Ruby on Rails.
  • Ran two-week sprints, followed Scrum rules for product development, and used JIRA as the project's issue tracking system.
  • Developed some parts of the application that have high user interactions and dynamism with Backbone.js.
  • Developed a single-page application for an LMS project, using React on the client side.
  • Implemented a multi-tenant PostgreSQL database for SaaS product with the help of Apartment Ruby Gem; done for an LMS project.
Technologies: React, Backbone.js, Ruby on Rails (RoR)

Ruby on Rails Developer

2012 - 2013
  • Took responsibility of the company's several startups.
  • Developed Facebook apps for customers.
  • Constructed a RESTful API for a mobile application.
  • Consumed popular social media platforms' public APIs and gathered information according to the locations of the shares.
Technologies: Ruby on Rails (RoR)


I developed a system in this project to collect user's public check-ins on multiple social media platforms such as Instagram, Foursquare, and Twitter.


Universiteplus is an online education startup. I was involved in nearly all of the development of the current features. In a short amount of time, we developed an admin panel to manage the content of the website; this included courseware to watch the courses' videos and take the quizzes and questions.


Paraşüt is an online bookkeeping application for small businesses. I refactored an old Ember app to a newer version and developed new endpoints of the API.
2010 - 2016

Bachelor's Degree in Computer Engineering

Istanbul Technical University | ITU - Istanbul, Turkey


Ruby on Rails API, Ember Data, Devise, jQuery, React, Socket.IO, Backbone.js


Sublime Text 3, SourceTree, Postman, ITerm, Sublime Text, Sketch


Ruby on Rails 5, Ruby on Rails (RoR), Ruby on Rails 3, Ruby on Rails 4, RailsAdmin, Ember.js, Redux, Ionic, Angular


Ruby, SCSS, JavaScript, ECMAScript (ES6), SQL, C++


MacOS, Linux


PostgreSQL, Redis, Memcached


Agile Software Development, Object-oriented Programming (OOP), Testing


Ember CLI, ActiveAdmin, Ruby Gems, APIs, Ruby Performance

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring