Image of Dan

Dan

  • Angular 2+
  • javascript
  • PostgreSQL
  • React.js
  • Ruby
  • Ruby on Rails
  • Typescript

Dan is a full-stack developer with 6 years of experience. He specializes in Ruby, JavaScript, TypeScript, React.js, Angular 2+.

Dan and more developers are now available for hire.

Hire Dan

Skills and Qualifications

Languages

  • Ruby
  • JavaScript
  • TypeScript
  • HTML/HTML5
  • CSS/CSS3

Frameworks

  • Ruby on Rails
  • Sidekiq
  • Angular 2+
  • Angular Material

Libraries/APIs

  • React
  • Redux
  • Redux-Saga
  • RxJS
  • Axios
  • Underscore
  • jQuery

Tools

  • Git
  • Webpack
  • Gulp
  • Grunt
  • Docker

Other

  • AWS (EC2
  • S3)
  • Heroku
  • Apache
  • Nginx

Data bases

  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis

Projects

MedReach

Developer

This is a platform that brings together doctors and medical companies from different countries. Dan was engaged in the creation of a page of promotional codes, creating data on the sale of courses, and accounting for sales revenue. He also expanded user page functionality, added the ability to purchase courses using the Hyperpay payment service, changed the start page, and merged the collection of entities from the existing three tabs into one tab in the post feed. To do this, the existing logic on the back end was completely changed and a new endpoint was created.


  • JavaScript
  • Angular 8
  • WebSockets
  • PostgreSQL
  • Payment Systems
  • Google ads

Perxtech

Developer

This is an application for managing marketing campaigns for businesses of various sizes. During this project, Dan was a member of a team of experienced developers and was engaged in the following tasks: deep refactoring and code decomposition in order to create ready-made libraries and tools inside the application to solve isolated tasks such as working with graphs; creating QR and barcodes; integrating pop-ups and notifications; building mini-games to get bonus rewards.


  • JavaScript
  • Typescript
  • Angular 8
  • React.js
  • Redux
  • Redux-Saga
  • Ruby
  • Ruby on Rails
  • ElasticSearch
  • PostgreSQL
  • Google Analytics
  • AWS S3
  • Payment systems
  • Complex data through APIs
  • Sentry
  • Google trace

Further Afield Recruitment Platform

Developer

A platform that recruits participants for market research using digital platforms. Dan undertook the optimization of queries to the database; wrote a template engine for email (including support for variables); performed frontend optimization to exclude global re-rendering of pages and to increase the speed of the application; made the transition from React-Table 6.0 to 7.0; connected the Telleroo and PayPal payment systems; integrated AddPipe video recording; connected AWS S3 for file storage; implemented functionality for working with PDF files; and made changes on the SMS/email mailing service.


  • JavaScript
  • Ruby
  • PostgreSQL
  • React.js
  • React-Table
  • Survey Monkey
  • AWS EC2
  • AWS S3
  • Social networks
  • Payment Systems

AR-coupons

Developer

Application for receiving coupons used to pay for various services (movie date, lunch at a restaurant/cafe, etc). Dan was engaged to help with the backend (Ruby). The backend was covered with unit tests. Roles and permissions systems were built in. Also, he integrated push notifications on cell phones, a payment system (Braintree), cloud storage for media - AWS S3, and wrote functionality in accordance with customer requirements.


  • Ruby
  • PostgreSQL
  • Unit tests
  • AWS EC2
  • AWS S3
  • Payments Systems
  • Microservices
  • and Complex data through APIs