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Software Engineer

Haystack
Cologne, DEEngineering and Information TechnologyMid-Senior level

About the Role

Ruby on Rails Developer | Köln, Germany | Remote | 45000-75000 EUR/yearlyA rapidly expanding tech company dedicated to combating food waste is seeking a talented Ruby on Rails Developer. Join a dynamic team committed to creating impactful solutions for a more sustainable future.The Role Develop and maintain Ruby on Rails applications, including new features and code optimization Manage and optimize PostgreSQL databases, focusing on data modeling, performance, and migrations Contribute to DevOps tasks, including application deployment and microservice development in Kubernetes Design and integrate interfaces with external POS and inventory management systemsWhat You'll Need Completed degree in computer science or equivalent experience Proven experience in Ruby on Rails development Strong knowledge of PostgreSQL databases Solid understanding of Test-Driven Development (TDD) Experience with AWS environments (e.g., RDS) is a plus Professional working proficiency in German and EnglishWhat's On Offer Exciting and responsible role in a fast-growing company with a meaningful mission Opportunity for professional development and a start-up culture in a dynamic team Flexible working hours and home office opportunities Responsibility for your own projects and freedom to contribute activelyApply via Haystack today!

Job Overview

100% EnglishNo German required
HaystackHiring Company
Mar 8, 2026Date Posted
Software Engineer at Haystack — English Only | English Jobs in Germany