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Backend Engineer (RoR)

RemoteMiddleSenior

We are looking Backend Engineer (RoR) - Growth Team

Estonia, Cyprus, Spain (Remote OK)

About us:

Leading crypto trading automation platform serving millions of traders. Integrated with 15+ exchanges (Binance, OKX, Coinbase). AI-driven bots, TradingView integrations, enterprise-grade infrastructure.

Team & Role:

  • Growth-focused team driving user acquisition and conversion:

  • Optimize registration and onboarding funnels

  • Convert free users → paid subscribers

  • A/B testing and growth metrics

  • Educational systems for new traders

Tech Stack: Ruby on Rails, PostgreSQL, AWS, Redis, React/TypeScript

Requirements:

  • 4+ years Ruby on Rails production experience

  • PostgreSQL, AWS hands-on experience

  • External API integrations experience

  • Understanding code → business metrics connection

  • English B2+

Nice to have:

  • SaaS/subscription products experience

  • Growth engineering background

  • Willingness to evolve into fullstack (React)

  • Interest in crypto/trading

Process:

HR screening → Take-home test (2-3 hours) → Technical interview → EM interview

Feedback at each stage, 1-2 weeks total timeline.

What we offer:

  • Direct product impact (millions of users)

  • T-shaped engineer growth (backend → fullstack)

  • International team, flexible schedule

  • Competitive salary, modern equipment

Apply:

Send CV + brief note about your SaaS experience and what attracts you to growth engineering.

Published on: 9/18/2025

3Commas

3Commas

3Commas offers an all-in-one solution for managing crypto assets across major exchanges, offering reliable trade execution, portfolio analytics, and more.

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