63 ruby English-speaking jobs in Kraków

Have Early-stage startup or founder experience Experience with LLM-powered product features Python or Ruby

Experience with additional languages such as Go, Python, or Ruby.

Strong proficiency in at least one of Upside’s core technology stack: Ruby, Python, JavaScript or the

Proficiency in Ruby specifically Rails, with Python being a bonus.

Proficiency in Ruby specifically Rails, with Python being a bonus.

Experience with 2 of the following languages or ability to switch to another language: Java, C#, Python, Ruby

roles in different areas/programming languages (Machine Learning, Mobile, Front-end, Back-end Java/Ruby ... These languages include but are not limited to: **Ruby on Rails, Scala, Python, JavaScript.*** Experience

Solid expertise in at least one of the following frameworks: Python, Ruby, JavaScript – and readiness

. → Experience in at least one of Upside’s backend technology stack: Ruby, Python, JavaScript or the

Programming Languages: Proficiency in any programming language such as Java, Python, Golang, JavaScript, Ruby

Experience with 2 of the following languages or ability to switch to another language: Java, C#, Python, Ruby

Experience with 2 of the following languages or ability to switch to another language: Java, C#, Python, Ruby

web development Strong problem solving and solution design skills Proficiency in Python (Java, C++ or Ruby

Development Engineer Solid proficiency in at least one modern programming language (e.g., Go, Python, Ruby

experience) 3+ years of experience in backend development with one or more of the following: C/C++/Java/Ruby

Proficiency in Ruby (specifically Rails), with Python being a bonus.

Go, Python, Java, TypeScript, Ruby) with a track record of high-performance delivery Comfortable becoming

backend systems at scale technologies like Python, Kotlin, or any other modern backend language (e.g Go, Ruby

.* Production coding skills in at least one of: Go, Python, or Ruby — able to build instrumentation,

Experience with 2 of the following languages or ability to switch to another language : Java, C#, Python, Ruby