Full-Stack Developer (Backend-Focused)
pubGENIUS · Warsaw, Masovian Voivodeship, Poland · Remote-friendly
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- Company
- pubGENIUS
- Location
- Warsaw, Masovian Voivodeship, Poland
- Employment type
- Full-time
- Posted
- June 22, 2026
About this job
pubGENIUS is a React.js and Next.js development agency and ad tech startup. We build web and AI products for clients in the US and Europe. Our focus areas include DeFi, fintech, and healthcare. We are hiring a Full-Stack Developer with a strong backend focus. You will work on real client products and internal systems using React, Node.js, TypeScript, and AWS. This is a full-time, contractor-based role. What You Will Do: Build and scale backend services using Node.js and TypeScript Develop frontend features and interfaces using React and TypeScript Design and implement event-driven systems using AWS Lambda, SNS, and SQS Develop and maintain APIs for web and mobile applications Write efficient queries for Aurora MySQL and work with Redis where needed Collaborate with PMs, designers, and deve…
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