Senior Backend Engineer (node.js) k/m/*

Your responsibilities, Develop and maintain backend services (Node.js) for reporting and LMS modules, Design and implement scalable data ingestion and transformation pipelines, Build performant and intuitive REST APIs exposing learning insights, Collaborate end-to-end: from architecture decisions to deployment, Actively participate in the agile process (planning, reviews, iterations)

Minimum 3 years of experience in backend development (production systems), Strong knowledge of: Node.js, TypeScript, REST APIs, Hands-on experience with Google Cloud Platform (Firestore, Pub/Sub), Experience with both NoSQL and SQL databases, Solid engineering fundamentals (OOP, data structures, algorithms), Experience working in cross-functional product teams, Strong communication skills and collaborative mindset

Optional, Experience with BigQuery, Familiarity with CI/CD, Docker, Terraform, Experience with event-driven systems

This is how we work, at the client's site

SQUARE ONE RESOURCES sp. z o.o., At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.

This is how we work,

About the project

You’ll join a team building a modern reporting and learning analytics system from the ground up. This is a greenfield project where you’ll have real ownership and impact on both architecture and product direction.

The system is designed to help students and teachers better understand learning progress through data-driven insights.

About the project

You’ll join a team building a modern reporting and learning analytics system from the ground up. This is a greenfield project where you’ll have real ownership and impact on both architecture and product direction.

The system is designed to help students and teachers better understand learning progress through data-driven insights.

Your responsibilities

• Develop and maintain backend services (Node.js) for reporting and LMS modules
• Design and implement scalable data ingestion and transformation pipelines
• Build performant and intuitive REST APIs exposing learning insights
• Collaborate end-to-end: from architecture decisions to deployment
• Actively participate in the agile process (planning, reviews, iterations)