Senior Platform Engineer: AI Infra & Scale (Remote)

Cello; Poland; On-site; PLN 200,000 - 340,000; Full time

Job summary

Cello, a Poland-based AI-powered infrastructure company, builds APIs, attribution models, MCP integration, AI-based recommendations, and assistants. Our stack includes AWS, Terraform, NestJS, PostgreSQL, and GitLab CI/CD. We operate remote-first with regular in-person meetups; join a small team that shapes how we build.

You will own infrastructure, design CI/CD, and influence architecture with real impact. You'll work on environments you don't control, ship code quickly or deliberately, and

Qualifications

• Experience building scalable systems with high traffic and availability.

Responsibilities

• Manage AWS infrastructure - architecture, reliability, security, and cost.

Skills

AWS

Terraform

NestJS

PostgreSQL

GitLab CI/CD

TypeScript

Node.js

Distributed systems

Observability

Kafka

Job description

Cello, a Poland-based AI-powered infrastructure company, builds APIs, attribution models, MCP integration, AI-based recommendations, and assistants. Our stack includes AWS, Terraform, NestJS, PostgreSQL, and GitLab CI/CD. We operate remote-first with regular in-person meetups; join a small team that shapes how we build.

You will own infrastructure, design CI/CD, and influence architecture with real impact. You'll work on environments you don't control, ship code quickly or deliberately, and