Senior Full Stack Engineer, AI-first SaaS

• Build and deliver full-stack features end to end using React, TypeScript, and Node.js
• Develop intuitive, performant, and scalable frontend experiences for a complex B2B SaaS product
• Implement backend services, APIs, business logic, and third-party integrations
• Develop and integrate AI-powered product features
• Participate in system design and architectural decisions
• Use AI-assisted development tools such as Claude Code or similar in everyday workflow
• Review, debug, test, and improve AI-generated code while maintaining ownership of implementation
• Take responsibility for CI/CD and DevOps aspects of features
• Work closely with Engineering and Product to define requirements and technical solutions
• Participate in Agile ceremonies and collaborate with a distributed international team
• Communicate technical decisions clearly and confidently in English

• 5+ years of professional software development experience
• Strong experience with Node.js and React
• Solid knowledge of TypeScript
• Experience building and integrating REST APIs
• Strong full-stack capabilities across frontend and backend
• Experience developing and shipping AI-powered features in a production environment
• Practical experience using AI coding assistants such as Claude Code, Cursor, GitHub Copilot, or similar tools
• Good understanding of software engineering fundamentals, testing, debugging, and code quality
• Experience with cloud environments and CI/CD
• Understanding of scalable and distributed systems
• English — C1 or higher, with strong verbal and written communication skills
• Experience working in a product or SaaS environment
• Nice to have: experience with Python
• Nice to have: experience with AWS or another major cloud provider
• Nice to have: familiarity with Docker, Kubernetes, or microservices
• Nice to have: experience with LangChain, LangGraph, or similar AI/agent frameworks
• Nice to have: experience building high-scale SaaS products with complex, polished UIs
• Nice to have: background in security, compliance, GRC, or developer tools
• Nice to have: experience taking ownership of the frontend area within a full-stack team
• Nice to have: experience with automated testing and QA practices

• Opportunity to work remotely
• 1:1 English Classes: Individual English language training
• Premium Medical Insurance: Comprehensive health insurance
• Supportive, collaborative, and dynamic international team
• All necessary equipment supplied
• Full accounting assistance in Ukraine and Poland
• 18 days of annual vacation
• 7 days of sick leave without a doctor's note
• Flexible payment solution with multiple withdrawal options