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Jędrzej D.
Last update: 30 Jul 2019
MIDDLE
Ruby on Rails full-stack developer
I'm a full-stack Ruby on Rails developer with over 3 years of programming experience. Apart from Ruby and Ruby on Rails, I can help you with Sinatra projects and all the front-end stuff as my HTML5, CSS3 and Bootstrap skills are really good. I'm definitely not afraid of vanilla JavaScript as well as jQuery or Vue.js. As for databases, I use MySQL and PostgreSQL the most often.
I started my programming career while working as a DEV OPS engineer. It was at that time when I had my first contact with RoR and I immediately fell in love with it. Since then I've been working on multiple Ruby on Rails projects. One of them was for an accounting office located in Germany where I was a member of a team consisting of 12 developers responsible for building an API in Grape. Another one, a big educational system, was entirely built by me. The third huge project was fully based on microservices. I'm familiar with the best programming practices and agile project development.
Usually responds within 1 hour
GMT+13 Pacific West
Warsaw/Poland, Cracow/Poland, Białystok/Poland, Katowice/Poland, Łódź/Poland

Works

EXPERIENCE

Industry Experience

Education & Science

PORTFOLIO HIGHLIGHTS

Jaacoo - social education platform

Developer

Jaacoo is a social education platform that helps people exchange knowledge. It's designed to be very simple to understand, intuitive and user-friendly. Jaacoo priority is to provide users easy access to the education they need. It allows users to teach or learn with others, sign up for events, make friends and communicate with other people.

Technologies Stack:

JavaScript React.js Ruby Ruby on Rails Bootstrap CSS3 HTML

Industry:

Education & Science

Works:

Smartbuchhalter - An invoicing software for German businesses

Backend developer

I contributed to the project by building complex invoices validation algorithm and developing API.

Smartbuchhalter is invoicing software for German businesses. It allows businesses to generate invoices and helps document their expenses and payments.

Technologies Stack:

JavaScript React.js Ruby Ruby on Rails CSS3 HTML

Works:

Web development & outsourcing agency #353

100-400
Warsaw/Poland, Cracow/Poland, Białystok/Poland, Katowice/Poland, Łódź/Poland
GMT+13

Industries

Architecture & Design, Education & Science, Business & Productivity, E-Commerce & Retail, Banking & Finance, Information services & Technologies, Entertainment & Games, Construction & Real estate, Internet & Telecom, Fashion & Style, Travel & Tourism, Kids & Childcare, Healthcare & Medicine, Booking & Rent, Food & Drink, Arts & Culture, Beauty & Personal Care, Cybersecurity & Data Protection, FMCG

Polcode is an international full-cycle software house with over 1,300 completed projects. We’ve provided comprehensive software development services to 800+ businesses of all sizes worldwide. With a 99% job success rate on Upwork and a 5-star rating on Clutch, we know how to code to make your project work.

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