🚀 Backend Engineer (RoR) - Growth Team

3Commas.io | 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.