Lead AI Engineer & Architect

Lead AI Engineer & Architect

Tasks

* Design and validate end-to-end, enterprise-grade AI architectures (LLM orchestration, MLOps/AIOps pipelines, vector search, data platforms, observability, security)

* Integrate AI solutions into complex enterprise environments, ensuring scalability, reliability, compliance, and production readiness

* Lead advanced AI engineering work streams, including fine-tuning, optimization, and/or pre-training of open-source LLMs

* Define and promote engineering best practices, reference architectures, and reusable accelerators to industrialize delivery

* Oversee technical delivery across multiple AI projects, mentor AI engineering teams, and manage execution topics (quality, timelines, risks, dependencies)

* Act as a senior client-facing advisor: requirements discovery, regulatory-to-technical translation (AI Act, Data Act, GDPR), and contribution to pre-sales (proposals, RFPs, pitches, use-case ideation)

Benefits

* Competitive salary package

* Enjoy the best of both worlds: a startup pace and autonomy, backed by Reply's international group (stability, resources, and a full corporate benefits package)

* Collaborate closely with leadership, with direct access to decision makers and a fast, agile governance model that values autonomy and high-impact contributions

* Influence both strategy and delivery, shaping not only what we build for clients but also how we operate internally

* Thrive in Reply's innovation-driven culture with competitive benefits, in an environment built for people who want to innovate, create, and contribute to a broader European mission

Qualifications

* 5+ years overall experience, including 2+ years in AI engineering and solution architecture

* Minimum Master's degree in Computer Science or a related field (or equivalent)

* Strong ability to design AI & data architectures integrated into enterprise landscapes; hands-on LLM fine-tuning/adaptation/training and production delivery

* Consulting background: requirements gathering, stakeholder management, and translating AI regulations into actionable technical requirements

* Excellent French & English communication/presentation skills; experience leading technical teams, contributing to governance, and solid project-management capabilities

* Nice to have + soft skills:
Mistral AI, sovereign cloud (OVHcloud/Outscale), PMP/Prince2, regulated industries exposure; critical thinking, ownership, trust-building, and leadership

SAIL Reply

SAIL Reply is the Reply Group company specialized in developing AI-driven solutions for the intelligent automation of content and business processes. As an official partner of Mistral, SAIL Reply leverages Mistral's large language models to deliver advanced and customized AI solutions within modular, scalable, and secure architectures-both cloud-native and on-premises-ensuring full data control and sovereignty.

These solutions support complex scenarios in strategic areas such as knowledge management, document asset management, and their integration into omnichannel workflows.