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September 21, 2026

Senior Full-Stack Software Developer

Senior • On-site

200 - 200 PLN/yr

Warsaw, Poland

Quick Facts

  • Role: Senior Full-Stack Software Developer
  • Domain: AI and cybersecurity-focused web solutions
  • Work mode: Hybrid

Description

Design, develop, and maintain web applications end-to-end, building both backend and frontend solutions. Develop the backend in Python while working with Node.js and React, making system architecture decisions that ensure quality, scalability, and security. Integrate AI-based solutions into the applications and collaborate with customers, including international clients.

Responsibilities

  • Design, develop, and maintain web applications
  • Build features on both backend and frontend
  • Develop backend services in Python
  • Work with Node.js and React
  • Design and evolve system architecture
  • Integrate AI solutions into application functionality
  • Ensure code quality, scalability, and security
  • Analyze and solve complex technical issues
  • Collaborate with the team on architecture and technology decisions
  • Work directly with clients (including international)
  • Use AI tools as part of everyday development work

Requirements

  • Several years of experience in software development
  • Very good Python knowledge
  • Experience with Node.js and React (or ability to quickly learn the stack)
  • Strong foundations in software engineering
  • Practical interest in AI and a desire to grow in this area
  • Knowledge of software engineering best practices, architecture, and coding
  • Ability to independently analyze problems and find solutions
  • English level enabling fluent client communication (min. B2)

Benefits

  • Real impact on technology solutions and system architecture
  • Projects in AI and cybersecurity
  • Opportunity to work with rapidly evolving technologies
  • Experienced, technical team
  • Hybrid work mode
  • B2B contract employment

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