Senior Backend Engineer (Node.js)

At Ontopo, we build large-scale technology that powers the restaurant industry.

Our platform supports thousands of restaurants and operates under high traffic, real-time data processing, and strict requirements for performance and availability.

We’re looking for a Senior Backend Engineer to work on large, independent, end-to-end backend projects, built with modern technologies and deeply embedded in the core of our system.

This is a backend-focused role - over 90% Backend development, with no real dependency on frontend work.

What You’ll Work On:

• End-to-end ownership of large backend projects, from design to production.
• Building and evolving core backend systems operating at high scale.
• Developing microservices using Node.js and NestJS.
• Working in a distributed architecture with a strong focus on performance and reliability.
• Tackling complex, open-ended backend challenges and turning them into robust solutions.
• Actively using AI tools to improve development speed, quality, and problem solving.
• Collaborating with experienced engineers in a strong, product-focused team.

What We’re Looking For:

• 5+ years of experience as a Backend Engineer.
• Strong hands-on experience with Node.js. Experience with NestJS is a big plus.
• Proven experience building backend systems and microservices.
• Experience working on core systems and high-scale production environments.
• Strong understanding of performance optimization, scalability, and high availability.
• Ability to take ownership and deliver independently, end to end.
• High curiosity for technology and strong interest in AI-driven development.

Why Join Ontopo:

• Work on the core of a real product, not side features.
• Large, meaningful projects with full end-to-end ownership.
• Modern backend stack and an engineering-first culture.
• High-scale systems and real technical challenges.
• Hybrid work environment.