Senior Fullstack Engineer: AI-Driven Backend & React Remote

Experis ManpowerGroup Sp. z o.o.

14 days+

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100% remote
B2B: 180-210 PLN/h netto + VAT

Responsibilities

Build and evolve a backend-heavy full stack architecture for an AI-native enterprise SaaS product.
Design and deploy scalable services on Google Cloud Platform (GCP), including Cloud Run, BigQuery, and GCS.
Develop responsive and modular interfaces using React, TailwindCSS, and Zustand.
Implement micro-frontends, Module Federation, robust APIs, and secure authentication flows (OAuth2, SSO).
Work with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and autonomous AI agents to power intelligent workflows.
Ensure fault tolerance, observability, and performance through CI/CD pipelines and infrastructure automation.
Partner with product, design, and infrastructure teams to shape roadmap and delivery.
Foster a strong engineering culture and mentor junior developers.

Requirements

8+ years of professional software engineering experience with a focus on modern full stack development
Strong backend development skills using Node.js and NestJS
Proficiency in frontend technologies including React, TailwindCSS, and Zustand
Solid understanding of micro-frontend architecture, module federation, API design, and middleware
Hands‑on experience with Google Cloud Platform (GCP), especially Cloud Run, BigQuery, and GCS
Familiarity with CI/CD pipeline setup and maintenance
Knowledge of security protocols including OAuth2, SSO, and authentication flows
Experience working with Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG)
Understanding of autonomous AI agents and agent-to-agent communication

What we offer