Recruiter4you

Senior Ruby on Rails Engineer

Albania, Austria full-time Senior EUR75,000 - EUR105,000
full-time Senior level Technology & IT Salary listed Curated
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About the role

Location: Fully remote – Europe (CET ±3 hours)
Salary: €75,000–€105,000/year, depending on location and experience
Contract: B2B preferred, flexible
Experience: 5+ years
Important: Must be comfortable working with explicit NSFW content.
About the Role
We’re looking for an experienced Senior Ruby on Rails Engineer to join a fast-growing AI technology company behind an AI companionship platform used by millions worldwide.
You’ll work on scalable, AI-powered applications, developing new features and improving existing functionality alongside the CTO, Tech Lead and wider engineering team.
This is a hands-on individual contributor role for someone who enjoys coding, taking ownership and delivering high-quality solutions in a fast-moving environment.
Key Responsibilities

Design, develop and maintain scalable backend applications using Ruby on Rails.

Build new features and improve existing platform functionality.

Work with Product Managers to translate requirements into technical solutions and estimate development efforts.

Write clean, maintainable, well-tested production code.

Participate in code reviews, testing and technical decision-making.

Troubleshoot issues and improve application performance, reliability and scalability.

Collaborate with distributed engineering, product and infrastructure teams.

Requirements

5+ years of commercial experience in backend or full-stack software engineering.

Strong, hands-on Ruby on Rails experience, ideally recent and in production.

Experience building and scaling production applications with real users.

Ability to take ownership of features from requirements through development, testing and deployment.

Previous experience in a startup, scale-up or similarly fast-paced environment.

Strong problem-solving skills and the ability to balance code quality with delivery speed.

Excellent English and experience working with international teams.

Full comfort working with uncensored AI companionship products and explicit NSFW content.

Tech Stack
Ruby on Rails, PostgreSQL, Redis, Hotwire (Turbo and Stimulus) and Tailwind CSS.
Nice to Have

Experience with generative AI, LLMs, NLP or machine learning.

Familiarity with modern Rails development practices and AI-assisted coding tools.

Experience working with globally distributed engineering teams.

What’s on Offer?

100% remote working.

Competitive salary, depending on location and experience.

Direct collaboration with senior engineering leadership.

Opportunity to influence technical decisions and product development.

20 days of paid annual leave.

Learning and development budget, health and wellbeing support.

Company laptop and equipment.

Access to AI development tools, including Cursor, Claude Code and ChatGPT.

Annual company gathering.

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT CSS MySQL Remote Collaboration Senior Ruby Senior level

Likely questions

  1. Tell us about work you have done that is close to the Senior Ruby on Rails Engineer role.
  2. How would you approach your first 30 days at Recruiter4you?
  3. Which of CSS, MySQL and Remote Collaboration have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with CSS, MySQL and Remote Collaboration.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Ruby on Rails Engineer role because I can bring practical experience in CSS, MySQL and Remote Collaboration, learn the team quickly, and contribute to the outcomes Recruiter4you needs from this hire.

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