56 ruby English-speaking jobs in Kraków

Access to a modern tech stack and a variety of functional areas, including: Backend: Ruby/Rails, Golang ... Polyglot mindset with proficiency in modern backend stacks; while Ruby on Rails is our core, we welcome

background Exposure to AI/ML-powered products Experience working without heavy PM structure Python or Ruby

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

Engineer 7 years of programming experience with at least one modern programing languages (Go, Python, Ruby

willingness to grow in this area Knowledge of Python or another object‑oriented language (Java, C++, Ruby

Engineer 9 years of programming experience with at least one modern programing languages (Go, Python, Ruby

Access to a modern tech stack and a variety of functional areas, including: Backend: Ruby/Rails, Golang ... Polyglot mindset with proficiency in modern backend stacks; while Ruby on Rails is our core, we welcome

Proficiency in Ruby and familiarity with our core stack: AWS, PostgreSQL, Kafka.

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

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

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

Engineer 4 years of programming experience with at least one modern programing languages (Go, Python, Ruby

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

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

Engineer 4 years of programming experience with at least one modern programing languages (Go, Python, Ruby

Write clean, well‑tested code in Ruby, Python, or other languages used by the team. ... Familiarity with at least one backend programming language (Ruby, Python, Go, or similar).

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

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

Requirements 4 years of hands-on experience in platform system engineering using Go, Python, Java, Ruby

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