Senior Backend Enngineer

CommIT · amazonas, amazonas, Brazil

Location
amazonas
Job Type
Full-time
Posted
June 13, 2026

Job Description

The company is revolutionizing e-commerce advertising by connecting post-purchase shoppers with relevant cross-sell opportunities. Our platform powers promotional ad experiences that appear immediately after checkout, helping shoppers discover complementary products while helping merchants drive incremental revenue.
We’re a **seed-stage company** tackling complex, 0 1 ad-tech challenges — from real-time bidding and analytics infrastructure to high-performance frontend experiences that run across millions of checkouts every day.
- Ad server and bidding logic for real-time placement optimization.
- High-performance APIs handling millions of requests.
- Analytics systems for revenue tracking and reporting.
- Integrations with major e-commerce platforms and ad networks.
**Requirements**:
**Tech stack**:
Node.js, KeystoneJS 6, PostgreSQL 16, Redis, Prisma ORM, AWS ECS, Terraform, Docker, Sentry, TypeScript.
**You’ll excel if you have**:
- 5+ years in backend or...

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