Rafał Warzycha

techlead, fullstack developer, frontend developer, software architect

Łódź, Poland
+48 607 093 902

rafal.warzycha@gmail.com GitHub Twitter


  • Rafał is an experienced expert software developer specialized in implementation of large web applications (frontend and backend).
  • He has advanced knowledge and experience in JavaScript - full stack node.js environment (yarn, webpack, rollup, require.js, micro-components, electron).
  • He is people-oriented and focused on cooperation in problem-solving activities.
  • He is comfortable with spoken and written English in daily business contacts (US, UK, China, Russia, Italy, Switzerland, Canada, German, Finland, Sweden).
  • He is really focused on knowledge sharing and feedback culture - "feedback as a gift".
  • He contributes to open source community and takes active role as a community shepherd – delivering internal and external trainings, technical speeches, technological podcasts and organizing events.


  • Technologies: node.js, .NET,
  • Programming Languages: JS, C#, TypeScript, SQL, Ruby, Go, Kotlin, Python
  • DBMS: MongoDB, RabbitMQ, MS SQL Server, Oracle
  • Web technologies: HTML5, CSS3, JS (ES2015+), React, Angular, REST, svelte, vue
  • Cloud-computing: AWS, Azure, OpenStack, K2, saltstack, Kubernetes,
  • Quality assurance: jasmine.js, karma.js, protractor, NUnit, TFS ALM,
  • Application servers: node.js, pm2, express, hapi, IIS (HA, web farms, load balancing)
  • Supporting technologies: profilers, docker, gitlab
  • Development tools: Visual Studio Code, Webstorm, Sublime, Git, Bash, Mercurial, Visual Studio, TFS, HP ALM, TOAD, Powershell
  • Methods: Agile, Scrum, Kanban, Jira, Version One


  • English: Upper-intermediate


  • 2005-2011 – University of Łódź – Master’s Degree in Information Technology

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