Roman Rott's portfolio. Ruby On Rails projects

Dynamic Application Red Team Simulation

For BSG using Ruby Rails JavaScript React

Berezha is an Application Security and Penetration Testing Company. DARTS is the platform that simplifies penetration tests, automates report generation, and integrates external data sources.

Role:

Full-stack developer

Responsibilities:

Implemented the whole architecture, starting from the application design in the AWS cloud stack, configuring CI/CD, creating API services and UI applications, finishing implementing own web-design and writing the documentations.

Languages:

Ruby, JavaScript

Frameworks/Libs:

React, Redux

Other technologies:

AWS, S3, IAM

Status:

Internal project. Is online and works as a part of BSG's workflow.

https://bsg.tech/

Notification Engine

For Groupon using Ruby Rails

* Internal project. Under the NDA

Groupon is an US e-commerce marketplace. I was working on their notification engine that handles reservation related notifications for Online Booking. It consists of a web server and a set of background workers to send messages and receive callbacks from the SMS/Calls service.

Role:

Back-end developer

Responsibilities:

Languages:

Ruby 2

Frameworks/Libs:

Ruby on Rails, Resque, Redis, Groupon-specific services/APIs

Status:

Internal Groupon's project. Under the NDA

https://www.groupon.com/

Cater2.me applications and infrastructure

For Cater2.me using Ruby Rails JavaScript React

Cater2.me provides customizable catering solutions for offices. They allow companies to order food from local vendors, letting their employees customize and set the meal schedule. Team admins can segment the team into different groups and track order details.

Project includes Admin app and API, 2 versions of Client Apps, Group Ordering App, Vendor App, Operators Interface, Finance App and several internal gems and js/node libs.

Role:

Full-stack developer

Responsibilities:

Maintained the website, several internal applications, applications for clients, vendors and operators, maintained admin console.

Prepared and held internal penetration test(both, black-box and white-box).

Languages:

Ruby, CoffeeScript, JavaScript, TypeScript

Frameworks/Libs:

React, Redux, Svelte, Rails

Other technologies:

Heroku, Node

Status:

Internal projects. Are online and work as a part of Cater2.me's infrastructure.

https://cater2.me/

Callback system

For Enova using Ruby Rails JavaScript

* Internal project. Under the NDA

Large enterprise project in financial sphere intended to optimize business processes of the loan company.

Role:

Team Lead.

Responsibilities:

Code reviews, estimating and allocating resources.

Decision-making and negotiating.

Writing new and refactoring legacy code.

Languages:

Ruby, JavaScript

Status:

Internal project. Is online and works as a part of Enova's products.

https://www.enova.com/

Dabble

For Dabble.co using Ruby Rails

Dabble is an online community marketplace for people to discover, teach and host unique and affordable one-time classes. Was working mostly on UI parts of the app using JS and CoffeeScript.

I was working on migrating from old SSO to a new one, refactored and removed legacy code, optimizing and performance enhancement. Implemented new features and products.

Role:

Front-end, Back-end developer

Responsibilities:

Languages:

Ruby, CoffeeScript

Frameworks/Libs:

Ruby on Rails, Trailblazer, Cells, Roar, ActiveAdmin, jQuery

Testing Frameworks:

Rspec

Status:

Online.

https://dabble.co

Chairlift(Better Feedback)

For Sphere Inc using Ruby Rails React JavaScript

Screenshot of Chairlift(Better Feedback) dashboard

Chairlift is a modern, cloud based HR solution that elevates employee performance and provides HR professionals with the insight to nourish workplace culture. It is an internal Sphere project I worked as a part of remote team.

Role:

Front-end, Back-end developer

Responsibilities:

Implemented several UI parts/features of the application using React, Redux and ES6. Worked on back-end entities.

Languages:

Ruby 2, ES6

Frameworks/Libs:

Ruby on Rails 4.2, React+Redux

Testing Frameworks:

Rspec, Factory Girl

Other technologies:

JSON, postgreSQL

Status:

Online.

https://chairlift.io

Chairlift Expenses

For Sphere Inc using Ruby Rails React JavaScript

* Internal project. Under the NDA.

Chairlift Expenses is an internal Sphere’s project for handling company's expenses. I was working on it starting from the initial proposal, planning and designing architecture and finishing implementing both front and back-ends of the project. Switched to another roject befor this one ended.

Role:

Team Lead

Responsibilities:

Code reviews, estimating and allocating resources, writing stories. Decision-making and negotiating, communicating with the project owner.

Writing code, making architectural decisions.

Languages:

Ruby 2, ES2016

Frameworks/Libs:

Ruby on Rails 5, React, Redux

Testing Frameworks:

Rspec

Status:

https://sphereinc.com/

Cloud Hosting control panel

For Ecommerce.com using Ruby Rails JavaScript

Screenshot of Cloud hosting control panel web application

Cloud by IX is a Cloud Hosting service created for system and database administrators, web developers, resellers, hosting professionals and business infrastructure. An entire business can literally be operated within a single Cloud by IX product. Service is integrated into IXWebhosting.com and CloudByIX.com hosting brands.

Current project is a Single Page JavaScript Application that integrates CloudStacks into current manage panel of Ecommerce.com's brands. Application has Ruby on Rails and Sinatra on back-end and backbone.js on front-end

Role:

Full-Stack developer. Member of a team of front end developers, BAs, PMs, admins, etc. This product was developed and released using Agile methodology.

Responsibilities:

As a part of the team: Creating UI that integrates current control panel with CloudStack. Design of some UI components. Adapting SOAP API interface to JSON and vise verse. Supporting released features, updating functionality as it was required by MVP and Agile methodologies. Security enthusiast

Languages:

Ruby 1.9.7 and 2.1.3, CoffeeScript

Frameworks/Libs:

Ruby on Rails 4.0, Sinatra, Backbone.js 1.1, Marionette.js, jQuery

Testing Frameworks:

Rspec 3.2, Capybara, Jasmine, VCR, site_prism.vcr

Other technologies:

Capistrano, SASS, ROM, Guard, Node, Faye

Status:

Acquired by BlueHost.

https://my.cloudbyix.com
https://my.ixwebhosting.com

MyBestDate.xyz - dating website for a CTF game

For Roman Rott using Ruby Rails JavaScript

website for CTF hacking game. Payment page

Screenshot of website for CTF hacking game. Payment page

«MyBestDate» is a fake Dating website created for a CTF(Capture The Flag security game) organised for UISGCon 11(2015) - Ukrainian InfoSec conference held by Non-Government Organisation «Ukrainian Information Security Group»

This Dating website had no real users or profiles and was created with several pre-defined vulnerabilities that allowed researchers to get flags and proceed with the next part of the hacking game. It has integrated chat and rating systems to allows gamers to use their skills on a system close to real ones.

Role:

Full-Stack developer, second Game-Master

Responsibilities:

Creating back-end, front-end; integrating free design, admin page; protecting application from all possible security issues, except pre-defined ones; configuring and optimising web, SQL servers; monitoring services and applications during the games.

Languages:

Ruby 2.2, Javascript

Frameworks/Libs:

Ruby on Rails 4.2, Jquery, Bootstrap

Other technologies:

SASS, Haml, PostgreSQL, Faker, CarrierWave, Devise, Administrate

Status:

Archived after the CTF's end.

Ordering wizard for Cloud product on CloudByIx.com and IxWebhosting.com

For Ecommerce.com using Ruby JavaScript

First step of Ordering Wizard - a single page web application

Screenshot of First step of Ordering Wizard - a single page web application

IXwebhosting.com and CloudByIX.com are hosting services that provide cloud hosting product for their customers. This project is an integrated Single Page Application that allows to pre-configure and bye cloud product without using external payment services.

Role:

Full-Stack developer. Member of a team of front and back-end developers, BAs, PMs, admins, etc. This product was developed and released using Agile methodology.

Responsibilities:

As a part of the team: creating UI that integrates SOAP API interface with control panel and CloudStack that uses JSON. Supporting released features, updating functionality as it was required by MVP and Agile methodologies.

Languages:

Ruby 2.1.3, CoffeeScript

Frameworks/Libs:

Sinatra, Backbone.js, jQuery, Ruby on Rails 4.0

Testing Frameworks:

Rspec 3.2, Capybara, Jasmine, VCR, site_prism.vcr

Other technologies:

Capistrano, SASS, ROM

Status:

Acquired by BlueHost.

https://my.cloudbyix.com
https://my.ixwebhosting.com

Landing pages for IxWebhosting.com and HostExcellence.com

For Ecommerce.com using Ruby Rails JavaScript

Hacker Shiield landing page about web application security

Screenshot of Hacker Shiield landing page about web application security

IXwebhosting.com and HostExcellence.com are hosting brands that have a lot of products including shared, cloud and VPS hostings, domain and SSL registrations, Site Builders and Design services, etc.

This project contains pop-ups and bunch of landing pages for current and pre-sales products that give the company an opportunity to sale a product using one-click purchase tool or Opt-In for a new project that is not yet released.

Role:

Front-end developer

Responsibilities:

Integrating design with current API and Hosting Control panel, adding code needed for One-Click purchase tool.

Languages:

Ruby 2.1.3, CoffeeScript

Frameworks/Libs:

Ruby on Rails 4.0, jQuery

Testing Frameworks:

Rspec 3.2, Capybara, Jasmine

Other technologies:

SASS, Faye, JSON

Status:

Acquired by BlueHost.

https://my.ixwebhosting.com/landing
https://my.hostexcellence.com/landing