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Urgent! Full Stack Engineer (Ruby on Rails, Hotwire, Turbo) - Up to €120k - Local Job Opening in Turbo

Full Stack Engineer (Ruby on Rails, Hotwire, Turbo) Up to €120k



Job description

Full Stack Engineer (Ruby on Rails, Hotwire, Turbo) - Up to €120k

Join One of the Fastest-Growing AI Companies on the Planet (30M+ Users and Counting!)

A-Tech is partnering with one of the Top 15 Largest and Fastest-Growing AI Companies globally.

In less than two years, they’ve scaled to over 30 million users , redefined what it means to connect with AI, and launched a flagship product that dominates the AI companionship space.

Now, they’re building a second product set to transform the creator economy: think best-in-class tools for AI video, image generation, and storytelling, accessible to every creator.

Their mission?

To create human-first AI that’s safe, ethical, and emotionally intelligent.

Backed by elite leadership (ex-IPO founders, ex-Blackstone, Deloitte Fast50) and a global remote team of 55+ top-tier engineers, product minds, and creatives , this is your chance to build groundbreaking AI at scale.

We’re looking for a product-driven Full-Stack Engineer to help build, refine, and scale core systems in a fast-paced, high-growth environment.

You’ll work across frontend and backend -writing elegant Rails code, leveraging Hotwire for slick UI, and shipping user-facing features that power millions of conversations a day.

You’ll be trusted with meaningful ownership and encouraged to move fast, collaborate deeply, and raise the bar every day.

What You’ll Work On:

  • Build features end-to-end across Ruby on Rails + Hotwire (Stimulus, TurboFrames, TurboStreams)
  • Own both frontend and backend tasks from design to deployment
  • Partner with Product, SREs, and Data Scientists to ship high-performance, user-centric features
  • Maintain clean code quality through PR reviews, testing, and refactoring
  • Help shape the product roadmap alongside world-class leadership

Your Background:

  • 3+ years of software engineering experience, ideally in product-focused, fast-moving environments
  • Strong backend expertise in Ruby on Rails
  • Solid frontend experienceusing Hotwire , Stimulus, TurboFrames, and TurboStreams
  • Experience building and scaling user-facing features for large-scale web applications
  • Excellent communication, collaboration, and ownership mindset
  • A passion for AI, cutting-edge tech, and building delightful user experiences
  • Bonus: if you’re comfortable working on products involving uncensored AI models, NSFW content , or content moderation.

Why You’ll Love This Role:

  • 100% Remote with async-friendly culture and global teammates (have a B2B or Contractor contract)
  • Massive growth : 30M+ users in 18 months - aiming for 100M+ next
  • Tech-forward team with full access to GPT-4, Mistral, Hugging Face Pro
  • Proven leadership from IPO’d companies and world-class startups
  • Real product ownership - you’re not just shipping code, you’re shaping the product
  • Ethical AI backed by a proprietary internal moderation engine
  • Company laptop + $200 wellbeing budget
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Required Skill Profession

Desarrollo De Software



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