Jan Grela

Software Engineer

Full Stack Developer experienced in Ruby (Rails) and React.
Interested in Web Development.

Contact

mail@jangrela.com

+48 573 057 571

linkedin.com/in/jangrela

jangrela.com

Technical skills

Core
Ruby, Ruby on Rails, JavaScript ES5/6, NodeJS, React (Native), CSS, HTML, Java, Docker (Compose), Linux, SQL, MySQL, PostgreSQL
Basic/Old
Spring Boot, Python, Django, Android, C++/C, Qt, Bash
Other
GIT, UML, Scrum

Languages

Polish - Native
English - Advanced

Other interest

Photography
Home brewing

Work experience

11/2010 - 01/2019
Digia Plc (Finland)
Software Engineer
  • Backend - frontend project. Backend - REST API in Spring Boot, database - PostgreSQL, frontend - React Native app for Android. Deployed with Docker.
  • NodeJS project - implementing frontend in React.
  • Compliance project using Chef, Chef Compliance. Producer - consumer architecture with Kafka and Confluent. Producer in Ruby, data stream in Java, consumer in NodeJS, presentation layer in React. Dockerized components.
  • Project in Ruby on Rails - Ruby, MySQL, JavaScript, HTML, CSS, SASS. Later Grails, Java, React. Android mobile client.
  • Mobile Linux test automation scripts (Ruby)
  • Mobile Linux test asset development (Qt/C++)
2007 -
Freelance Web
Developer
  • Ruby on Rails + (fullstack, only backend + React)
  • Dynamic web pages creation
    (X)HTML, CSS, PHP, JavaScript, Ajax

Education

2009
University of Applied Science,
Jyväskylä (Finland)
1 semester or Erasmus Exchange Program
2008 - 2010
Cracow University of Techlogy
MSc in Computer Science
Thesis: "Creating Mobile Applications in Maemo Platform”
2004 - 2008
Cracow University of Techlogy
BSc in Computer Science

Jan Grela

Jan Grela

GitHub

Recent projects

  • In producion:
  • In development:
    • Offer calculator. Backend - REST API in Rails, JWT authentication. Frontend - ReactJS.
    • Photos organization service - Django.