Postúlate en Kit Empleo: kitempleo.com.co/empleo/1at1c0

Hellotext is the next-generation AI platform for eCommerce growth. Brands use Hellotext to power AI Playbooks that recover carts, re-engage customers, automate support, and send highly personalized WhatsApp/SMS campaigns.
We’re growing fast and we need a Senior Rails Engineer who can own complex integrations, scale our systems, and ship features that directly impact tens of millions of messages every month.
If you love:
- Rails architecture
- Hotwire/Turbo/Stimulus
- High-volume integrations
- Scaling data pipelines & jobs
- Building product, not ticket factories

…then you will love this role.
What You’ll Do
As a Senior Full-Stack Ruby on Rails Developer you will:
1. Own integrations end-to-end
You’ll build and maintain the APIs and webhooks that power our automation engine:
- Shopify, Woocommerce, Tiendanube, VTEX, Magento, Salesforce.
- ERPs Integrations
- MercadoLibre customers & orders
- Meta (WhatsApp), AppsFlyer, attribution partners
- Payment and billing integrations
- Event ingestion for abandoned carts, purchases, inventory, returns, etc.

2.



Build and scale core product features
You’ll work closely with Founder + Product to deliver new features
3. Build clean, reactive UI with Hotwire
No React. No SPAs. Pure Rails with:
- Turbo Streams
- Stimulus controllers
- Tailwind CSS
- Real-time updates (Inbox, Playbook stats)
- Seamless multi-step wizards

4. Architect for performance and scalability
You’ll improve and scale the systems behind:
- High-throughput message delivery (WhatsApp/SMS/IG/WA Cloud API)
- Async processing (Sidekiq queues, concurrency tuning)
- Webhooks ingestion at high volume
- Caching strategies (Redis, DB read optimizations)
- Reliable background processing & backpressure control
- Database performance: indexing, partitioning strategies, slow query reductions
- Horizontal scaling via Kamal + containers

5. Work side-by-side with our AI team
You don’t need to be an “AI engineer” but you’ll help wire the backend so these systems run flawless

Postúlate en Kit Empleo: kitempleo.com.co/empleo/1at1c0

📌 Senior Full-Stack Ruby on Rails Developer at Hellotext (Colombia)
🏢 Ruby on Rails
📍 Colombia