Remote Fullstack Developer for AI Platform — Flexible Hours

Leocode; Katowice; Remote; PLN 180,000 - 240,000; Part time

Benefits offered by this job

Remote work

Flexible hours

Long-term cooperation

Job summary

Leocode is seeking a Mid/Senior Fullstack Developer to own the product and architectural direction for a remote AI platform. You will work with Next.js/React/TypeScript on a complex stack and integrate AI/LLM capabilities across multi-agent systems.

Remote role with flexible hours, and a possible path from part-time to full-time. Join a product-focused startup building an agent-driven platform and contribute to long-term technical direction.

Qualifications

• 4+ years of commercial Fullstack experience (JS/TS).
• Built production-grade applications.
• Understands DDD / Clean / Hexagonal Architecture.
• Hands-on experience with AI/LLM/RAG.
• Uses AI tools (e.g. Claude Code) in daily work.
• Strong ownership and communication skills.
• Native Polish + fluent English (C1/C2).

Responsibilities

• Take real ownership over the product, architecture, and long-term technical direction.
• Contribute to platform design and API strategies.
• Collaborate with multidisciplinary teams to deliver features.

Skills

Fullstack JS/TS

Production-grade apps

AI/LLM/RAG

Ownership & communication

Polish-English

Tools

Next.js

React

TypeScript

NestJS

PostgreSQL

Prisma

Redis

RabbitMQ

WebSocket

Docker

GitHub Actions

Turborepo

Job description

Leocode is seeking a Mid/Senior Fullstack Developer to own the product and architectural direction for a remote AI platform. You will work with Next.js/React/TypeScript on a complex stack and integrate AI/LLM capabilities across multi-agent systems.

Remote role with flexible hours, and a possible path from part-time to full-time. Join a product-focused startup building an agent-driven platform and contribute to long-term technical direction.