Senior Full Stack AI‑First SaaS Engineer

About the role

We are looking for a senior full‑stack engineer to join our AI‑first B2B SaaS product team. You will own features from concept through production, working on both the React front‑end and Node.js back‑end while leveraging AI‑assisted development tools.

Key responsibilities

• Design, develop, and deliver end‑to‑end full‑stack features using React, TypeScript and Node.js.
• Build and integrate REST APIs, business logic and third‑party services.
• Implement AI‑powered product capabilities and use AI coding assistants (e.g., Claude Code, GitHub Copilot) in daily workflow.
• Participate in system design, architecture decisions and CI/CD pipeline ownership.
• Collaborate with product and engineering teams in Agile ceremonies across a distributed international team.

Required profile

• 5+ years of professional software development experience.
• Strong full‑stack expertise with Node.js, React and TypeScript.
• Experience delivering AI‑enhanced features in production.
• Proficient English communication (C1 or higher).
• Background in SaaS product development and cloud environments.

Required skills

• Node.js
• React
• TypeScript
• REST API development
• AI coding assistants (Claude Code, Cursor, GitHub Copilot)
• CI/CD pipelines
• Cloud platforms (AWS or equivalent)
• Docker & Kubernetes
• Python
• LangChain / LangGraph

What we offer

• Fully remote work environment.
• Individual English language training.
• Premium medical insurance.
• All necessary equipment provided.
• Accounting support in Ukraine and Poland.
• 18 days vacation plus 7 sick days without a doctor’s note.
• Flexible payment options.