P

Senior Backend Engineer (Ruby on Rails)

product pulse Spain
Remote
Apply
AI Summary

Take ownership of a critical backend system, defining the roadmap and implementing technical solutions. Ensure reliability, performance, and correctness while diagnosing complex production issues. Requires 5+ years of backend experience, strong Ruby on Rails skills, and an AI-first workflow mindset.

Key Highlights
High ownership of business-critical backend systems
Strong experience with Ruby on Rails and PostgreSQL
AI-first mindset using tools like Cursor, Claude Code, or Codex
Key Responsibilities
Hands-on code implementation, code reviews, and testing
Ensure reliability, performance, and correctness
Diagnose and resolve complex production issues
Collaborate with other engineering and Product teams
Make pragmatic decisions balancing risk, maintainability, and business needs
Improve code quality and internal structure where possible
Technical Skills Required
Ruby on Rails PostgreSQL Redis
Benefits & Perks
Fully remote within +/- 4hrs CET
Opportunity to define roadmap
Time to run experiments and bring new ideas

Job 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...

Similar Jobs

Explore other opportunities that match your interests

Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

Capitole

Spain
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Not Applicable

booksy

Spain

Senior PHP Laravel Developer

Programming
1w ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

sparktraffic.com

Spain

Subscribe our newsletter

New Things Will Always Update Regularly