Senior GenAI Engineer: RAG, LLM Apps & MLOps

The Functionary; México; Presencial; MXN 1.200.000 - 1.800.000; Jornada completa

Descripción de la vacante

The Functionary in Mexico City is seeking a senior AI software engineer to build GenAI-powered experiences and a shared AI platform. You will own end-to-end features from conception to deployment, including RAG pipelines, personalization, and agentic workflows.

You will collaborate across teams to deliver production-grade AI, drive decisions, and contribute to a robust SDLC with strong testing and operational practices.

Formación

• Bachelor’s degree or equivalent professional experience.
• 7+ years of software development experience.
• 3+ years AI engineering experience.
• Python proficiency; production LLM experience.
• Specialization in RAG retrieval, LLM eval, or agent frameworks (LangChain/LlamaIndex).
• Prompts, context window management, and output quality tradeoffs familiarity.
• Vector databases, embeddings, or semantic search familiarity.
• AI-driven SDLC with AI-assisted tools (Claude Code, Copilot, Cursor).
• Familiarity with .NET/C#, Go, Python, Java, React, MS SQL Server, Azure or AWS.
• Full-stack awareness; ownership of features end-to-end.
• Code quality: testing, review, CI/CD.
• D3 (7+ yrs) and D4 (10+ yrs) progress toward broader contributions.

Responsabilidades

• Design, build, and operate production AI features: RAG pipelines, recommendations, conversational agents, or workflow automation.
• Build the shared AI platform layer: retrieval infra, eval frameworks, monitoring, guardrails, observability.
• Write LLM apps and integrations with marketing platforms, BI tools, or customer surfaces.
• Evaluate model and feature quality using structured eval frameworks; iterate prompts and retrieval strategies.
• Use AI-driven SDLC tooling daily for AI and non-AI code.
• Coordinate with the Personalization team to align features with ML signals.
• Document AI system design decisions and evaluation results in the knowledge base.

Conocimientos

Python

AI engineering

Full-stack awareness

Prompt engineering

RAG

LangChain

LlamaIndex

Evaluation frameworks

CI/CD

Cloud basics

Production ownership

Code quality

Educación

Bachelor's degree in Computer Science

Herramientas

Claude Code

GitHub Copilot

Cursor

LangChain

LlamaIndex

Descripción del empleo

The Functionary in Mexico City is seeking a senior AI software engineer to build GenAI-powered experiences and a shared AI platform. You will own end-to-end features from conception to deployment, including RAG pipelines, personalization, and agentic workflows.

You will collaborate across teams to deliver production-grade AI, drive decisions, and contribute to a robust SDLC with strong testing and operational practices.