Senior Node.js/TypeScript Engineer — AWS Serverless SaaS (Gdańsk)

Sii Poland; Województwo pomorskie; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland is seeking an experienced Node.js Developer to join our engineering team in Gdańsk. You will design and build backend services in Node.js/TypeScript, create REST and GraphQL APIs, and develop serverless solutions on AWS for a large-scale cloud-native SaaS platform.

The role requires at least 5 years of Node.js experience, hands-on AWS serverless, and strong multi-tenant SaaS design skills. On-site collaboration is expected three days a week; fluent Polish and residence in Poland are

Qualifications

• 5+ years of Node.js development in distributed systems.
• Expertise with TypeScript/Node.js.
• Hands-on experience with AWS serverless architecture.
• Experience designing REST and GraphQL APIs.
• On-site work in Gdańsk 3 days a week and Polish fluency required.

Responsibilities

• Design and build backend services in Node.js/TypeScript.
• Create and maintain REST and GraphQL APIs.
• Implement multi-tenant SaaS logic and data isolation.
• Develop serverless solutions on AWS.
• Ensure platform security, reliability, and performance.
• Collaborate closely with the engineering team on-site.

Skills

Node.js

TypeScript

AWS

Distributed systems

REST APIs

GraphQL

Multi-tenant SaaS

API design

On-site collaboration

Tools

AWS Serverless

Job description

Sii Poland is seeking an experienced Node.js Developer to join our engineering team in Gdańsk. You will design and build backend services in Node.js/TypeScript, create REST and GraphQL APIs, and develop serverless solutions on AWS for a large-scale cloud-native SaaS platform.

The role requires at least 5 years of Node.js experience, hands-on AWS serverless, and strong multi-tenant SaaS design skills. On-site collaboration is expected three days a week; fluent Polish and residence in Poland are