GenAI Engineer

pluxee; Issy-les-Moulineaux; Sur place; EUR 80 000 - 120 000; Plein temps

Avantages offerts par ce poste

Meaningful job

Great culture

Empowering environment

Résumé du poste

Pluxee, a leader in employee benefits and engagement, seeks a GenAI Engineer to own the internal AI platform and advise IT teams group‑wide. You will drive platform evolution, MCP integration, and ensure secure, scalable AI tooling across the business units.

The role blends hands‑on platform ownership with GenAI advisory duties, requiring strong backend and cloud experience in a global, multi‑BU context. Fluent English is expected, French a plus.

Qualifications

• 5+ years in backend / full‑stack development, incl. 2+ years on GenAI/LLM in production.
• Proven experience deploying AI platforms on cloud infra (Azure preferred; AWS/GCP OK).
• Experience in international or multi‑BU enterprise environments is a plus.

Responsabilités

• Own the internal AI platform roadmap, updates, and new integrations (MCP connectors, business tools).
• Ensure production platform reliability, security, and performance (Kubernetes/Azure, CI/CD, monitoring).
• Design and deploy business AI agents with access controls per BU or team.
• Manage the LLM integration layer: routing, guardrails, quotas, cost management.
• Lead multi‑tenant architecture efforts for agents and knowledge bases across the org.

Connaissances

GenAI

LLM systems

Backend/Full‑stack

Python

Node.js

Outils

Kubernetes

Azure

CI/CD

Datadog

MeiliSearch

Description du poste

At Pluxee, we shape the world of employee benefits and engagement by bringing to life a personalized and sustainable employee experience, at work and beyond.

Permanent Regular

Job Description

Pluxee is a global leader in employee benefits and engagement, operating in 26 countries. As part of its digital transformation, Pluxee has built an internal AI platform giving employees access to LLMs with strong data sovereignty, compliance, and business integration guarantees.

As generative AI matures and cross-functional needs grow - AI agents, RAG, tool integrations, AI-assisted development practices (AIDLC) - Pluxee is creating the GenAI Engineer role to own this ambition in-house.

This is a hands-on technical role combining ownership of a production AI platform with a GenAI advisory function for IT teams across the group.

Key Responsibilities

Internal AI Platform Ownership

• Own the technical roadmap: platform evolution, updates, and new integrations (MCP connectors, business tools...).
• Ensure reliability, security, and performance of the production platform (Kubernetes / Azure, CI/CD, monitoring).
• Design and deploy business AI agents: system prompts, tools, knowledge bases, per-team or per-BU access control.
• Manage the LLM integration layer: model routing, guardrails, token quotas, cost management.
• Drive the architecture toward a multi-tenant platform: agents and knowledge bases scoped per Business Unit.
• Operate existing and new MCP (Model Context Protocol) servers: Atlassian (Jira / Confluence), web search, and upcoming connectors (SharePoint, etc.).

GenAI Support for IT Practices - AIDLC

• Define and roll out AIDLC (AI-assisted Development Lifecycle) standards: integrating AI into code review, generation, testing, and documentation workflows.
• Support development teams in adopting GenAI tools (code assistants, agents, RAG on codebases).
• Identify priority AI use cases across IT departments and co-build solutions with the teams.
• Act as the GenAI technical reference: architecture, model selection, security, GDPR and EU AI Act compliance.
• Lead technology watch on the GenAI ecosystem and bring forward concrete, actionable proposals.

Experience

5+ years in backend / full-stack development, including at least 2 years on GenAI / LLM systems in a production context.

Proven experience deploying and operating AI platforms on cloud infrastructure (Azure preferred; AWS or GCP accepted).

Background in international or multi-BU enterprise environments is a plus.

Technical Skills

• GenAI ecosystem: LLM & Agents -
• RAG (vector indexing, pgvector , Elasticsearch), prompt engineering, multi-agent chains
• Model Context Protocol (MCP) - design and operation of MCP servers
• LLM proxies ( LiteLLM or equivalent), Azure OpenAI / AI Foundry, guardrails and quota management
• Infrastructure: Cloud & DevOps -
• Kubernetes (AKS), Helm, Docker, CI/CD (Azure DevOps or GitHub Actions)
• Secrets management (Azure Key Vault or equivalent), monitoring (Datadog or equivalent)
• Stack: Development -
• Python (Flask, orchestration scripts), Node.js / TypeScript
• MongoDB, PostgreSQL, Redis, MeiliSearch
• Protocols: Security & Auth -
• OpenID Connect, OAuth 2.0 (3LO), Azure AD / Okta, JWT
• GDPR compliance, EU AI Act, data residency (EU hosting)

Soft Skills

• Ability to translate complex technical topics for non-technical stakeholders.
• Results-oriented: knows how to move from POC to production with rigor.
• Proactive on technology watch: tracks the fast-moving LLM/agent ecosystem.
• Collaborative mindset in an international, distributed-team context.

Languages

Professional English (documentation, international meetings) - French is a plus.

Technical Environment

The GenAI Engineer operates within the following environment (at time of joining):

AI Platform : Internal AI chat platform based on LibreChat , deployed on Azure AKS (EU)

LLM : Azure AI Foundry (GPT-5, GPT-4.1) via LiteLLM Proxy

MCP Connectors : Atlassian (Jira/Confluence), web search - upcoming: SharePoint, Rovo

Databases : MongoDB, PostgreSQL + pgvector , Redis, MeiliSearch

CI/CD & Quality : Azure DevOps Pipelines, SonarQube, Snyk , pre-commit

Auth : Okta SSO (OpenID Connect), Azure AD, JWT

Automation : n8n - agentic workflow orchestration

Happy at work

1. A meaningful job: Be the change! Help us build the future of employee benefits by bringing to life sustainable and personalized experiences and contribute to make a real impact on millions of lives. Our business model delivers not just for individuals but their communities too, by supporting local businesses and economies.
2. A great culture: People matter - a lot! Be part of a multicultural team that moves as one in a fast paced and innovative environment. We respect and care authentically about our people, we embrace wellbeing and work-life balance, new ideas and we have a lot of fun!
3. An empowering environment: Be yourself!

At Pluxee we proudly embrace diversity and value the uniqueness of our talent.