Senior Full-Stack Software Developer

Quick Facts

• Role: Senior Full-Stack Software Developer
• Focus: Web applications (backend + frontend) with AI-enabled features and strong architecture, quality, and security

Description

Design, develop, and maintain web applications with backend and frontend ownership. Build and evolve a Python backend while working with Node.js and React, and integrate AI solutions into the products. Collaborate with the team on architecture and technology decisions and communicate directly with clients.

Responsibilities

• Design, develop, and maintain web applications
• Build features in both backend and frontend
• Develop backend services in Python
• Work with Node.js and React
• Design and evolve system architecture
• Integrate AI-based solutions into the applications
• Maintain code quality, scalability, and security
• Analyze and solve complex technical problems
• Collaborate with the team on architecture and technology choices
• 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 knowledge of Python
• Experience with Node.js and React or readiness to quickly get up to speed
• Strong fundamentals of software engineering
• Practical interest in AI and desire to grow in this area
• Knowledge of software engineering best practices and architecture
• Ability to independently analyze problems and find solutions
• English level enabling smooth client communication (minimum B2)

Benefits

• Hybrid work model (2–3 days per week in the Warsaw office)
• B2B contract employment
• Work in a technical, experienced team
• Real impact on technology solutions and system architecture
• Projects in AI and cybersecurity
• Opportunity to work with fast-evolving technologies
• Startup environment with low corporate bureaucracy