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Senior Backend Engineer – Ruby on Rails

Product Pulse Consulting — Spain · Posted ~6 days ago

Senior

Skills

Ruby on Rails Backend engineering Production systems Code reviews Testing Production troubleshooting System reliability Performance optimization Technical decision-making Ruby Cursor Claude Code Codex

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Summary ✨ AI‑Generated

A senior backend engineering role for someone who enjoys owning business-critical production systems end-to-end. You will shape technical direction, implement and review code, solve complex production issues, improve system reliability and maintainability, and collaborate across engineering and product teams. Strong Ruby on Rails experience and 5+ years building production systems are expected, along with an AI-first development mindset.

Highlights

Own a business-critical backend system, influence the technical roadmap, experiment with new ideas, and work on reliability, performance, architecture, and complex production challenges.

Description

You will take ownership of a backend system that is critical to the company and our customers. You will have the opportunity to help define our roadmap and find the best technical solutions. You will also have time to run some experiments and bring new ideas to the table. Your responsibilities: ● Hands-on code implementation, code reviews, testing ● Ensure reliability, performance and correctness. ● Diagnose and resolve complex production issues. ● Collaboration with other engineering & Product teams. ● Make pragmatic decisions balancing risk, maintainability, and business needs. ● Improve code quality and internal structure where possible. What we are looking for: ● 5 years plus experience building and maintaining production systems as backend engineer ● Strong experience with Ruby on Rails ● AI-first mindset using tools like Cursor, Claude Code, Codex, in your daily workflow ● Working on large-scale products ● Experience owning systems that are business critical. ● Methodical approach to debugging and problem solving. ● Comfortable working autonomously with high ownership. ● Advanced level of English. Tech Stack: Language & Platform: Ruby Data: PostgreSQL or Redis Infrastructure: Tailwind Location: Barcelona, Spain > or Fully remote within a +/- 4hrs CET Fill in the form, we will contact you...