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August 15, 2026
Senior AI-Native Software Engineer – Full Stack (React, Next.js, Node.js)
Senior • Remote
140 - 180 PLN/hr
Gdańsk, PM, Poland
Apply now
Salary: 140–180 PLN/h net + VAT (B2B)
Tech Stack
- TypeScript
- JavaScript
- React
- Next.js
- Node.js
- PostgreSQL
- Playwright
- AI: Claude, Codex, MCP, agentic workflows and reusable AI skills
Description
Join a team building modern business applications powered by AI-assisted engineering. The work combines product thinking, software architecture, and direct collaboration with clients.
Use AI tools to design solutions, prepare specifications, review generated code, and deliver scalable, production-ready software. Work across multiple client projects simultaneously, with context switching and priority management forming an important part of the role.
Responsibilities
- Work in client teams as an equal team member.
- Build and develop frontend and backend features using React, Next.js, TypeScript, and Node.js.
- Design application architecture, reusable modules, and integration patterns.
- Translate business requirements into clear technical specifications for AI coding agents.
- Use AI coding agents (Claude/Codex) in daily engineering work.
- Review, validate, and improve AI-generated code.
- Build and improve AI-assisted engineering workflows, including reusable skills, prompts, and testing practices.
- Contribute to software quality through automated testing, code reviews, and AI-assisted validation.
- Take ownership of technical solutions within the assigned area of responsibility.
- Contribute to open-source libraries.
- Share knowledge and help grow AI engineering practices within the community.
Requirements
- 5+ years of commercial experience building web applications.
- Experience with JavaScript, TypeScript, React, Next.js, and backend development using Node.js.
- Experience building reusable AI workflows, prompts, skills, or agentic solutions.
- Understanding of MCP (Model Context Protocol), tool integrations, or multi-agent workflows.
- Ability to translate business requirements into scalable technical solutions.
- Understanding of software architecture and scalable system design.
- Ability to review and validate AI-generated code rather than relying on it blindly.
- Product mindset and understanding of the business context behind features.
- Ability to work independently, manage priorities, and switch context when needed.
- Critical thinking, ownership, and a proactive attitude.
- Advanced English communication skills for daily collaboration with the team and international clients.
Preferred
- Experience building AI-powered developer tools or internal engineering platforms.
- Familiarity with Playwright or other automated testing frameworks.
- Contributions to open-source projects or active participation in technical communities.
- Willingness to travel occasionally for client workshops.
Recruitment Process
- Application form
- 60-minute HR interview
- 90-minute technical interview with developers
- 45-minute final interview with a founder
- Reference check
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