Senior Backend Engineer (Ruby/Golang) — SaaS Platform

Loyal Guru; Barcelona; On-site; EUR 45,000 - 65,000; Full time

Benefits offered by this job

Reduced working hours on Fridays & in‑

Birthday day off

25 days vacation

Budget for training

Wellhub access

50% discount on health insurance

Job summary

Loyal Guru in Barcelona is seeking a Software Engineer to join an agile squad building a high-quality SaaS platform focused on security and scalable backend services.

You'll work with Ruby and Golang, design REST APIs, leverage Google Cloud, and apply TDD and Clean Code principles while collaborating with product, QA, and DevOps to deliver reliable software. This role emphasizes scalable, secure solutions and continuous deployment.

Qualifications

• You have in-depth knowledge and work experience with OO languages on the server side, preferably Ruby or Golang.
• You've previously worked with serverless technologies.
• Experience applying TDD and working with Clean Code principles
• You have solid experience writing REST APIs
• Experience working with Google Cloud
• You have a solid understanding of SQL having strong working experience with PostgreSQL
• Working with GIT and the command line on a daily basis and you understand the benefits of working in a Continuous Deployment environment.

Responsibilities

• Use Ruby & Golang as the development languages.
• Design, implement, and scale different solutions, paying attention to writing polished and easy-to-understand code.
• Follow and apply best practices in the entire development cycle.
• Participate in code reviews and pull requests, helping the team in the improvement of the product’s quality.
• Make contributions to the architecture by sharing your best ideas and helping in their execution.
• Work closely with other specialists (QA, Product Owners…) to make our software design, delivery, and quality unbeatable.
• Help with tech documentation.
• Leverage AI tools for assisted backend and infrastructure development, maintaining high quality standards, exercising technical supervision, and verifying generated results to ensure reliability and security.

Skills

Ruby

Golang

REST APIs

TDD

Clean Code

Git

CI/CD

OO Languages

Tools

Google Cloud

PostgreSQL

Serverless

Git CLI

Job description

Loyal Guru in Barcelona is seeking a Software Engineer to join an agile squad building a high-quality SaaS platform focused on security and scalable backend services.

You'll work with Ruby and Golang, design REST APIs, leverage Google Cloud, and apply TDD and Clean Code principles while collaborating with product, QA, and DevOps to deliver reliable software. This role emphasizes scalable, secure solutions and continuous deployment.