Roman Rott's ruby developer portfolio.

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/

Website/Endpoint for one of The CTF task on the BruCON 0x0B (2019)

For Roman Rott using JavaScript

Screenshot of Website/Endpoint for one of The CTF task on the BruCON 0x0B (2019)

BruCON 0x0B (2019) - the cyber security conference.

Role:

UI Developer

Responsibilities:

Assisted the CTF team with creating UI for a vulnerable website

Languages:

JavaScript

Other technologies:

Heroku

Status:

Archived

Archived version: heroku
Event: twitter.com

Website for «OWASP Ukraine 2019» cybersecurity conference

For Roman Rott using Ruby JavaScript

Screenshot of OWASP Ukraine 2019 website

The 5th annual OWASP Ukraine 2019 - the biggest Ukrainian Application Security conference held under the aegis of OWASP Lviv, Kyiv, Dnipro and Kharkiv chapters.

Role:

Full-Stack developer.

Responsibilities:

I was working on the website: Design, content, images, structure

Configuring middleman, capistrano and CI/CD on GitLab to deploy static site on demand

SEO-optimization, performance optimization, configuring web server.

Languages:

Ruby 2.5, JavaScript

Frameworks/Libs:

MiddleMan - static site generator.

Other technologies:

HTML5, Haml

Status:

Online

owaspukraine.org

Timers for «OWASP Ukraine» 2018 and 2019 conferences

For Roman Rott using Ruby JavaScript

Screenshot of OWASP Ukraine Conference timer admin

OWASP Ukraine - the biggest Ukrainian Application Security conference held under the aegis of OWASP Lviv, Kyiv, Dnipro and Kharkiv chapters.

The application was created to show simple countdowns on the speakers' monitors to notify them about their timframes or to show short messages

Role:

Web developer.

Responsibilities:

Design, ui

Languages:

Ruby 2.5, JavaScript

Frameworks/Libs:

Padrino

Other technologies:

heroku

Status:

Online/Paused

owasp-ukraine-timer

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/

IraRott.com - online store of knit and crochet patterns

For Roman Rott using Ruby JavaScript

Ira Rott is a Knit & Crochet Designer living in Southern Ontario, Canada. This website is her online shopping cart for selling digital material (pdf files with patterns).

This is the second version with a lot of design changes and updates in the admin panel, new built-in SEO tools. It was refactored and optimised in order to run in the dockerised environment

There are hundreds paid and dozens free pdf patterns on the site, that can be downloaded and used by masters around the world. Additionally, it has Ira's portfolio and integration with Etsy system.

Website is a kind of CMS that has almost everything customizable using admin page, beginning with adding new patterns, portfolios, creating standalone pages, categories etc and ending with changing all SEO-related parameters of this website.

Role:

Full-Stack developer. Remote developer

Responsibilities:

Creating back-end and front-end, admin page, application design

web-design, SEO-optimisation

site migration, support current features and monitoring website's state.

Languages:

Ruby 2.4, JavaScript

Frameworks/Libs:

Padrino, Jquery

Other technologies:

Docker, SASS, Haml, ActiveRecord, Carrierwave, Poltergeist, Selenium, JSON, Sprockets, Nginx, PostgreSQL

Status:

Online

https://irarott.com

IraRott.com - old version of this online store of knit and crochet patterns

For Roman Rott using Ruby JavaScript

IraRott.com - online store of knit and crochet patterns

Screenshot of IraRott.com - online store of knit and crochet patterns

Ira Rott is a Knit & Crochet Designer living in Southern Ontario, Canada. This website is her online shopping cart for selling digital material (pdf files with patterns).

There are hundreds paid and dozens free pdf patterns on the site, that can be downloaded and used by masters around the world. Additionally, it has Ira's portfolio and integration with Etsy system.

Website is a kind of CMS that has almost everything customizable using admin page, beginning with adding new patterns, portfolios, creating standalone pages, categories etc and ending with changing all SEO-related parameters of this website.

Role:

Full-Stack developer. Remote developer

Responsibilities:

Creating back-end and front-end, admin page, application design

design, SEO-optimisation

configuring and optimization of the web, SQL servers, site migration, support current features and monitoring website's state.

Languages:

Ruby 2.1, JavaScript, CoffeeScript

Frameworks/Libs:

Padrino, Jquery

Other technologies:

SASS, Haml, ActiveRecord, Carrierwave, Poltergeist, Selenium, JSON, Newrelic, Sprockets, Nginx, PostgreSQL, Capistrano

Status:

Archived

https://irarott.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

rrott.com - current website-portfolio

For Roman Rott using Ruby JavaScript

rrott.com - web developer portfolio and blog about web application security

Screenshot of rrott.com - web developer portfolio and blog about web application security

My own website with blog and portfolio. The Website includes basic information about myself, my projects, my contact information and blog post related to web-development and security researches.

Role:

Full-Stack developer. Security enthusiast

Responsibilities:

Creating back-end, front-end, design, SEO-optimization, performance optimization, configuring web server.

Languages:

Ruby 2.2, CoffeeScript

Frameworks/Libs:

MiddleMan - static site generator.

Other technologies:

HTML5, Haml, Pure, HTTP/2, WebP

Status:

Online

Website: rrott.com
Portfolio: /portfolio
Blog: /blog

Shlyapa-Pay.info - payment system for CTF games

For Roman Rott using Ruby JavaScript

Fake payment system for CTF security game

Screenshot of Fake payment system for CTF security game

«Shlyapa-Pay» is a fake payment system created for a CTF(Capture The Flag hacking game) held by «Berezha Security».

This payment system has its own website, blog, integration with ActiveMerchant as a fake payment processing. It behaves almost the same way as a common payment systems like PayPal or WebMoney allowing users to send and receive costs to/from each other. The project has its own shopping cart and kind of social network created with several pre-defined vulnerabilities in mind.

«Shlyapa-Pay» was used in game held during International forum «Cybersecurity: Ukraine and the world» and then, after fixing all the vulnerabilities and adding new ones, was a part of a game at the Cybersecurity Olympiad «HackIT-2015»

Role:

Full-Stack developer, Game-Master's assistant during 2 CTF games.

Responsibilities:

Creating back-end, front-end, integrating free design, admin page, protecting the application from all possible security issues except pre-defined ones. Creating ActiveMerchant payment processor that can be integrated into a Shopping Cart. Was configuring and optimising web, SQL servers, monitoring services and applications during the games.

Languages:

Ruby 2.2, Javascript

Frameworks/Libs:

Padrino, Jquery, Bootstrap

Other technologies:

SASS, Haml, ActiveRecord, ActiveMerchant, Devise, Upmin, Faker

Status:

«Shlyapa-Pay» is offline now due to the nature of applications created for CTF games.

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

FindMeGetMe.xyz - fake dating service.

For Roman Rott using Ruby

front-end of a CTF site with images served using Sockets

Screenshot of front-end of a CTF site with images served using Sockets

«FindMeGetMe» is a fake Dating website with an API for mobile application created for the CTF(Capture The Flag hacking game) organised for UISGCon 11(2015) - Ukrainian InfoSec conference held by Non-Government Organisation «Ukrainian Information Security Group»

This Fake Dating website was created for security enthusiasts and had no real users or profiles. It was created with a pre-defined vulnerabilities related to Redis and Sockets. I used a Free design and added vulnerable Rack application that gets photos from Redis service using Sockets technology.

Role:

Full-Stack developer, second Game-Master

Responsibilities:

Creating back-end, integrating free design, configuring and optimising web, Redis servers, monitoring services and the application during the games. Creating API for a mobile app.

Languages:

Ruby 2.2

Frameworks/Libs:

Sinatra

Other technologies:

Redis

Status:

Archived after the CTF's end.