What would be your responsibilities: 

• delivering new features 
•  performing code reviews 

What do we like to see:

• preferrably technical education (we hire software engineers mostly)
• very good knowledge of Ruby and Ruby on Rails
• good knowledge of Javascript
• very good knowledge of SQL and database systems
• very good knowledge of git
• good knowledge of devops (development machine configuration, basic server configuration, deployment process)
• good knowledge of performance optimization
• very good english (we work with foreign clients only)

Features you should have implemented so far:

• complex forms with related many models, validations and dynamic content, used advanced design patterns to handle such forms
• complex logic in controllers and use of service objects
• lots of dynamic content, handling errors in ajax requests
• integration with social platforms
• implemented payment solution
• implemented caching
• implemented integration with external system with exchanging data both ways (ie. calling api methods and receiving webhooks)
• implemented transaction emails
• implemented generation of various file forms (ie pdf, excel documents)
• implemented complex file upload with ajax uploading
• implemented parsing of uploaded file (ie. csv, excel)
• dealing with multiple languages, 18n, l10n in general
• dealing with many timezones

What can we offer?

• 6 000 - 12 500 PLN nett on vat invoice (other forms possible) depending on your experience
• Great open minded team and superb work environment
• A lot of learning capabilities
• A clear career path
• Private healthcare
• OKSystem for sports
• Great atmosphere (we party a lot and get to know each other better)
• Fresh fruits
• Awesome coffee (from local rosters)
• Help in your visa arrangments if you are not from poland
• Two offices - Warsaw and Poznań - whichever is closer for you
• And everything You would need to be happy working with us.