DaCodes.

Senior AI Engineer – RAG, LLMs

DaCodes.

full-time

Posted on:

Location Type: Remote

Location: Remote • 🇲🇽 Mexico

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Job Level

Senior

Tech Stack

AWSCloudGraphQLJavaScriptPythonTypeScript

About the role

  • Design, develop, and implement a RAG-based AI Application for the healthcare sector, prioritizing data security, compliance, and privacy (HIPAA / SOC2-ready).
  • Build and integrate RAG pipelines combining semantic search, embeddings, and LLMs for secure contextual responses.
  • Develop agentic AI workflows using frameworks such as LangChain, LlamaIndex, Semantic Kernel, Auto-GPT, and BabyAGI.
  • Integrate both open-source LLMs (LLaMA, Mistral, Falcon) and enterprise LLMs (OpenAI, Anthropic, Cohere), optimizing performance and cost.
  • Configure and manage vector databases (Pinecone, FAISS, Weaviate) for efficient knowledge retrieval and storage.
  • Deploy AI solutions on AWS (Lambda, S3, QuickSight, API Gateway) following security and scalability best practices.
  • Design and integrate REST and GraphQL APIs, ensuring system interoperability and reliability.
  • Collaborate with product, UX, and data science teams to transform prototypes into SaaS-ready MVPs, delivering seamless chat, voice, and dashboard experiences.

Requirements

  • 4+ years of software development experience, including at least 2 years working with Generative AI or RAG-based systems.
  • Strong command of Python and JavaScript/TypeScript, with hands-on experience in modern AI frameworks and integrations.
  • Proven experience building RAG pipelines and managing vector databases (Pinecone, FAISS, Weaviate).
  • Solid understanding of secure cloud architectures (AWS) and handling sensitive or regulated data.
  • Experience with LLMs from both open-source and commercial ecosystems (OpenAI, Anthropic, Cohere, Mistral, etc.).
  • Product-driven mindset — results-oriented, iterative, and focused on user experience.
  • Intermediate to advanced English for technical communication and documentation.
Benefits
  • 🚀 Work with global brands and disruptive startups.
  • 🏡 Remote / home office.
  • 📍 If a hybrid or on-site modality is required, you’ll be informed from the first session.
  • ⏳ Work schedule aligned to the assigned project team.
  • 📅 Monday to Friday work week.
  • 🎉 Birthday day off.
  • 🏥 Major medical insurance (Mexico).
  • 🛡️ Life insurance (Mexico).
  • 🌎 Multicultural teams.
  • 🎓 Access to training courses and certifications.
  • 📢 Meetups with special guests from the IT industry.
  • 📡 Virtual team-building events and interest groups.
  • 📢 English classes.
  • 🏆 Opportunities across our business lines.
  • 🏅 Proudly certified as a Great Place to Work.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
PythonJavaScriptTypeScriptRAG pipelinesvector databasessemantic searchembeddingsLLMsREST APIsGraphQL APIs
Soft skills
product-driven mindsetresults-orientediterativeuser experience focuscollaborationcommunication