Senior Fullstack Engineer (Node.js, React, AI)

Experis ManpowerGroup Sp. z o.o.; Poland; Remote; PLN 248,000 - 289,000; Full time

Benefits offered by this job

100% remote

Life insurance

Private healthcare

Multisport card

PowerYou – e-learning platform

Job summary

Experis ManpowerGroup Sp. z o.o. seeks an 8+ year veteran software engineer to lead backend‑heavy full‑stack development for an AI‑native SaaS product. You will design scalable GCP services and craft robust APIs, while mentoring junior engineers in a dynamic, remote environment.

The role demands deep Node.js/NestJS expertise and strong frontend skills (React, TailwindCSS, Zustand) to deliver modular, secure solutions and drive platform excellence.

Qualifications

• 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.

Responsibilities

• Build and evolve a backend‑heavy full‑stack architecture for an AI‑native SaaS product.
• Design and deploy scalable services on GCP (Cloud Run, BigQuery, GCS).
• Develop responsive interfaces with React, TailwindCSS, Zustand.
• Implement micro-frontends, Module Federation, robust APIs, and secure auth (OAuth2, SSO).
• Work with LLMs, RAG, and autonomous AI agents to power workflows.
• Ensure fault tolerance, observability, and performance via CI/CD and automation.
• Collaborate with product, design, and infra teams to shape roadmap.
• Mentor junior developers and foster engineering culture.

Skills

8+ years of experience

Node.js

NestJS

React

TailwindCSS

Zustand

micro-frontend

module federation

API design

middleware

GCP (Cloud Run, BigQuery, GCS)

CI/CD

OAuth2

SSO

LLMs

RAG

autonomous AI agents

Tools

Node.js

NestJS

React

TailwindCSS

Zustand

Cloud Run

BigQuery

GCS

OAuth2

SSO

Job description

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

• 100% remote
• Life insurance
• Private healthcare
• Multisport card
• PowerYou – e-learning platform