Profileimage by Marcin Adamczyk Senior Backend Engineer (Ruby/Ruby on Rails, Elixir/Phoenix) with Javascript experience from Wroclaw

Marcin Adamczyk

available
Contact

Last update: 04.10.2020

Senior Backend Engineer (Ruby/Ruby on Rails, Elixir/Phoenix) with Javascript experience

Graduation: M.Sc. in IT
Hourly-/Daily rates: show
daily rate based on 8h; negotiable; may vary depending on project scope
Languages: German (Elementary) | English (Full Professional) | Polish (Native or Bilingual)

Attachments

CV_Marcin_Adamczyk.pdf

Skills

HyperMesh, Elixir, PostgreSQL, DevOps, SaaS, Ruby on Rails, RSpec, Microservices, network security, ElasticSearch, HAML, Heroku, server administration, AWS, CoffeeScript, AngularJS, Capistrano, SaaS platform, Sinatra, Redis, MongoDB, JavaScript, node.js, C#, web applications, PHP, SQL, XHTML, CSS, JS, programming language, Ruby, SQL databases, search engine, testing tools, Capybara, SCRUM methodology, TDD/BDD, Continuous Integration, NoSQL databases, Cassandra, frontend, Backbone, HTML, Slim, SASS, Phoenix, React, basic, languages and frameworks, Java, ActionScript 3, OSX, Linux environment, GIT, Mercurial

Project history

09/2019 - Present
Senior Software Engineer
zenloop (50-250 employees)
Marketing, PR and Design

Phoenix, Ruby on Rails, PostgreSQL, AWS, Docker, DevOps, BI. Developer of application providing NPS services.


06/2019 - 08/2019
Senior Software Engineer
HyperMesh (< 10 employees)
Telecommunications

Elixir/Phoenix, PostgreSQL, Networks, Security, DevOps. Developer of early stage SaaS startup.


12/2018 - 06/2019
Senior Ruby on Rails Developer
Trimetis Services
Ruby on Rails, PostgreSQL, RSpec, Distributed systems, Microservices architecture, Security.
Developer of SaaS platform for servers and network security.

05/2016 - 10/2018
Senior/Lead Ruby on Rails Developer
Brandnew IO"
Ruby on Rails, PostgreSQL, ElasticSearch, HAML, RSpec, Distributed systems, Advanced
Heroku server administration, AWS, Elixir/Phoenix. Developer of SaaS platform for influencer
marketing.

09/2015 - 04/2016
Chief Executive Officer
SubCom
Ruby on Rails, CoffeeScript, AngularJS, Slim, RSpec, Capistrano, Production server
administration, AWS. Architect and developer of SaaS platform for subscription stores.
Support for clients, leading startup, developing business.

08/2015 - 04/2016
Senior Ruby on Rails Developer
RST-IT
Ruby on Rails, CoffeeScript. Hired developer for private client. Working directly with client
on distributed application.

05/2014 - 09/2015
Chief Backend Architect
SubCom.me
Ruby on Rails, CoffeeScript, AngularJS, Slim, RSpec, Capistrano, Production server
administration, AWS, distributed application. Architect and developer of SaaS platform for
subscription stores.

10/2013 - 07/2014
Ruby on Rails Developer
KMPGroup
Ruby on Rails, CoffeeScript, Slim, Sinatra, ElasticSearch, Redis, RSpec, Capistrano. Building
applications directly for startups and clients from the very beginning, fixing existing projects.

04/2013 - 10/2013
Web Developer
OnePageCRM
Ruby on Rails, CoffeeScript. Developing main company product using MongoDB and mainly
Ruby on Rails for production usage.

02/2008 - 03/2008
Web developer
webkoncept.pl
Web developer. Creating simple web applications using PHP, SQL, XHTML, CSS and JS
languages.

Contact form

Contact details