Stephen Curry Joins Simplicity, Palo Alto Startup Building Super App for Cities READ MORE

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Senior Backend Engineer (NodeJS)

Create a delightful experience for our users around the world

  • Bratislava SK / on-site
  • Fulltime / freelance
  • Negotiable

About Simplicity

We transform global cities into AI-powered hubs using advanced Large Language Models, simplifying navigation and providing real-time updates on events and cultural attractions. 
Personalising recommendations, we help visitors and residents easily connect with the city, enriching their experience.

What you will do

  • Work with our core tech stack: TypeScript, NodeJS, NestJS, AWS, OpenSearch, AppSync, and Jest for testing.
  • Design and implement new features at scale — from brainstorming ideas to deployment.
  • Develop and deploy user-facing features that delight and deliver value to our customers.
  • Solve complex technical challenges by transforming user needs into reliable, high-quality software.
  • Collaborate closely with our product team to create smooth, intuitive user experiences.
  • Participate in technical and architectural decision-making, ensuring scalability and maintainability.

Who are we looking for?

  • 4+ years of engineering experience building great products.
  • You have a proven track record of successful projects under your belt.
  • Skilled in TypeScript, NodeJS, NestJS, and GraphQL — these are non-negotiable must-haves.
  • Experienced with AWS technologies, such as DynamoDB, OpenSearch, Lambda, AppSync, Cognito, S3, SQS, and SNS. Proficiency with Terraform is a strong advantage.
  • You are analytical, fond of the latest technological trends, and a quick learner.
  • You take ownership and feel responsible for the product as a whole.
  • Excited to collaborate and contribute to a growing, dynamic team.

Download the app
and find your city

  • Google Play
  • APP Store