Senior Software Engineer

Archer Recruitment; France; Sur place; EUR 120 000 - 180 000; Plein temps

Résumé du poste

Global pharmaceutical leader is seeking a Senior Agentic AI Engineer/Architect to own an enterprise-scale AI initiative from architecture through to production. This hands-on leadership role emphasizes delivering production-grade Agentic AI at scale, mentoring engineers, and shaping end-to-end architectures using LangGraph, LangChain and modern LLM frameworks in a complex global environment.

You will define scalable architectures, take AI systems from 0 to production, and collaborate with

Qualifications

• 7+ years' experience across software/Python engineering.
• Proven track record of taking Agentic AI solutions into production.
• Entrepreneurial, 0 → 1 mindset.

Responsabilités

• Own end-to-end delivery of production-grade Agentic AI solutions.
• Define scalable architectures with LLMs, RAG, multi-agent workflows.
• Lead and mentor engineers while remaining hands-on.
• Take AI systems from 0 → 1 → production with reliability and impact.

Connaissances

Python

Software engineering

Technical leadership

Architecture

Outils

LangGraph

LangChain

LLM frameworks

Description du poste

A globally recognised pharmaceutical leader is investing heavily in Agentic AI to transform how AI is applied across its manufacturing and wider business operations.

We’re looking for a Senior Agentic AI Engineer / Architect to take ownership of a major AI initiative from architecture through to production. This is a genuinely hands‑on leadership position for someone who wants to build production-grade Agentic AI at enterprise scale, rather than spend their time working on POCs.

This is a long-term, multi-year requirement, offering the opportunity to become a key technical contributor to a significant AI transformation within one of the world's most established pharmaceutical organisations.

It’s also a strong name to have on your CV — particularly for an engineer looking to build a track record delivering Agentic AI in a complex, global enterprise environment.

Why you'll love this role

• Multi-year opportunity with long-term potential
• Work on large-scale, production Agentic AI, not just experimentation
• Significant technical ownership and architectural influence
• Opportunity to lead and mentor other engineers while staying hands‑on
• A globally recognised pharmaceutical organisation and an excellent addition to your CV
• Opportunity to build experience delivering Agentic AI within a highly complex, enterprise environment

You will:

• Own the end-to-end delivery of production-grade Agentic AI solutions using technologies such as LangGraph, LangChain and modern LLM frameworks
• Define scalable architectures incorporating LLMs, RAG, multi-agent workflows, tools, memory, orchestration and evaluation
• Lead and mentor a team of AI/software engineers while remaining deeply involved in the technical implementation
• Take AI systems from 0 → 1 → production, with a strong focus on reliability, scalability and real-world business impact

What We're Looking For

• 7+ years' experience across software/Python engineering, with strong technical leadership or architecture experience
• Proven track record of taking Agentic AI solutions into production at meaningful scale
• Strong hands‑on experience with LangGraph, LangChain and modern LLM architectures
• An entrepreneurial, 0 → 1 mindset with the ability to turn ambiguous problems into working production solutions