Backend Entwickler - Ruby on Rails / PostgreSQL (m/w/d)
Core
Designing and developing new features for Ruby-on-Rails applications and building robust backend logic for a FinTech platform managing customer finances, invoices, and accounting.
Role type
Backend Developer (Ruby on Rails)
Builds
Web-based financial management tools for startups, freelancers, and enterprises
Domain
FinTech / SaaS
Deliverable
production ML models | product features
Required skills
Ruby on Rails, PostgreSQL, SQL query optimization, REST APIs, Hotwire, Turbo, Stimulus
Preferred skills
Python
Technologies
Ruby on Rails, PostgreSQL, Sidekiq, AWS, Minitest, Oaken, ERB
Responsibilities
Design and develop new features for Ruby-on-Rails applications; develop robust backend logic and maintain modern REST APIs; write efficient SQL queries and optimize PostgreSQL databases; design and maintain internal admin tools using Hotwire, Turbo, and Stimulus; refactor existing code areas; support maintenance of Python scripts and migration to Ruby-based systems
Seniority
Mid-level, hands-on IC
