AI Engineer - LLM Agents (Python) H/F

Location: Boulogne-Billancourt, France; hybrid work with up to 2 remote days per week

Company

hirify.global builds a core banking platform for banks and neobanks, supporting accounts, payments, cards, and operations for more than 30 regulated financial institutions in 15 countries.

What you will do

• Build and ship AI products from prototypes through production deployment.
• Own the architecture of the agentic platform and integrate foundation models, agent frameworks, and AI engineering advances.
• Design reliable workflows combining LLMs, tools, banking data, and human oversight.
• Build MCP servers, APIs, authentication, permission management, error handling, retries, idempotency, and structured outputs.
• Develop context and retrieval systems using embeddings, vector search, hybrid retrieval, reranking, and knowledge ingestion.
• Implement observability, evaluation, auditability, tenant isolation, explainability, and safe failure mechanisms for regulated banking use cases.

Requirements

• At least 5 years of software engineering experience, including significant hands-on experience building LLM-based agent systems in production.
• Strong Python backend skills, including REST APIs, asynchronous programming, and automated testing.
• Production experience with tool calling, RAG, agent context and memory management, and LLM quality evaluation.
• Ability to design and integrate complex, data-intensive production systems.
• Experience monitoring and optimizing production LLM systems through observability, tracing, and cost and latency control at scale.
• Working knowledge of guardrails and defenses against prompt injection.
• Fluency in French and English, both written and spoken.
• Master’s degree in Computer Science, Machine Learning, AI, Engineering, or equivalent hands-on experience.

Nice to have

• Strong teamwork and product sensitivity, including the ability to challenge technically unrealistic specifications.
• Proactive, autonomous, and entrepreneurial mindset suited to a scale-up.
• Experience in a regulated environment such as banking, insurance, or healthcare, where audit trails and human control are required.

Culture & Benefits

• Hybrid work with up to 2 remote days per week.
• 25 days of paid vacation plus 12 additional days off per year.
• Alan Blue health insurance and a Swile meal card.
• Brand-new offices near Metro Line 10 in Boulogne-Billancourt.

Hiring process

• Video call with the HR Manager, followed by a video call about the AI product vision and role.
• 60-minute live coding session.
• Final 60-minute meeting at the Boulogne office with the Chief of Staff.