Senior Fullstack Engineer (Node.js

Forvis Mazars Global,

a leading global professional services network. Operating as an internationally integrated partnership in over 100 countries and territories, we specialise in audit, tax and advisory services.

Forvis Mazars ’ strategic move to create a centralized service to serve clients across Europe, we have created a

Full-Stack Developer (with good capabilities in AI / Gen AI integration)

your career through global opportunities, diverse projects, and continuous learning.

We are seeking a skilled Full-Stack Developer (with good capabilities in AI / Gen AI integration) to join our innovative Agentic AI Center of Excellence team in Barcelona. This hybrid role will play a pivotal role in designing, developing, and deploying agent-powered process automation solutions for key processes (P2P, O2C, A2R, G2G, tax, payroll). The candidate will blend expertise in AI engineering (agent orchestration, LLM integration) with full-stack development (client portals, omnichannel interfaces) to drive efficiency, scalability, and compliance in a POC phase, with potential expansion.

Full-Stack Development :

Work closely with AI engineers to integrate LLM-based services into web applications.

Support group alignment and vision by designing scalable technology that meets business outcomes and quality management goals.

Full-stack expertise (e.g., React, Node.js, Python) with a focus on scalable web applications and integration with AI-driven workflows.

Knowledge of cloud platforms (e.g., Azure) and DevOps practices (CI / CD, MLOps) to ensure robust deployment and monitoring.

Advanced knowledge of vibe-coding technics and product development life cycles.

Familiarity with AI concepts and frameworks (LangChain, Hugging Face, Azure OpenAI) — hands-on experience is a plus.

Knowledge of data pipelines and APIs (Databricks, MS Fabric, vector stores) is an advantage.

5+ years in full-stack development, with hybrid project experience preferred.

Permanent full-time contract

Hybrid working model

Health insurance

Fruit, coffee and snack always available at our office