Senior Full-Stack Engineer — Remote

Upsaily.b2b; Kraków; On-site; PLN 165,168 - 220,968; Full time

Job summary

Upsaily.b2b is seeking a Senior Fullstack Developer to join our team across Wroclaw, Krakow, or remotely. You will build scalable web applications, focusing on robust backend APIs with Nest.js/Node and modern frontend with React/Next.js.

Collaborate on distributed systems using RabbitMQ, PostgreSQL databases, and cloud-native CI/CD pipelines. Strong emphasis on code quality, reviews, and AI-assisted development.

Qualifications

• 5+ years commercial experience in backend and frontend technologies (Nest.js, Node, React, Next.js).
• Experience with relational databases – PostgreSQL.

Responsibilities

• Create high-quality code in line with standards and best practices.
• Design and implement web applications including e-commerce solutions.
• Implement business logic for new and existing projects.
• Introduce new features and fix bugs in existing apps.
• Conduct code reviews and monitor code quality.

Skills

React/Next.js

Nest.js/Node

Distributed systems

AI tools usage

Tools

PostgreSQL

Git

CI/CD

Docker

RabbitMQ

Job description

Upsaily.b2b is seeking a Senior Fullstack Developer to join our team across Wroclaw, Krakow, or remotely. You will build scalable web applications, focusing on robust backend APIs with Nest.js/Node and modern frontend with React/Next.js.

Collaborate on distributed systems using RabbitMQ, PostgreSQL databases, and cloud-native CI/CD pipelines. Strong emphasis on code quality, reviews, and AI-assisted development.