Senior Full-Stack Engineer — Python + React, Build Scalable Apps

Transcenda; Polska; On-site; PLN 180,000 - 300,000; Full time

Job summary

Transcenda in Poland is seeking a senior software engineer to design, build, and maintain full-stack applications, including backend services, APIs, and user-facing web interfaces.

You will collaborate with frontend and product teams, participate in code reviews, and drive performance, security, and scalable solutions across the stack. Strong Python, React production experience, OO principles, Git, and English communication with international teams are essential.

Qualifications

• 5+ years of software engineering experience.
• Strong experience with Python.
• Production experience in React.
• Solid understanding of object-oriented programming principles.
• Proficiency with Git and modern development workflows.
• Upper-Intermediate+ English and ability to communicate effectively with international teams.

Responsibilities

• Design, build, and maintain full-stack applications, including backend services, APIs, and user-facing web interfaces.
• Ensure high performance, security, scalability, and maintainability across the entire application stack.
• Collaborate closely with front-end developers, designers, and product teams to deliver end-to-end solutions.
• Participate in code reviews and contribute to system architecture and technical design across backend and frontend.
• Continuously improve development processes, system performance, and developer experience across the stack.

Skills

Python

React

OO principles

Git workflows

English communication

Full-stack development

Tools

Git

Job description

Transcenda in Poland is seeking a senior software engineer to design, build, and maintain full-stack applications, including backend services, APIs, and user-facing web interfaces.

You will collaborate with frontend and product teams, participate in code reviews, and drive performance, security, and scalable solutions across the stack. Strong Python, React production experience, OO principles, Git, and English communication with international teams are essential.