Senior LLM Engineer (RAG & AWS Bedrock)

Company: oowlish
Location: São Paulo
Type: remote
Posted: Aug 19, 2026
Views: 5

✨ AI Summary

Oowlish, a Latin American software development company serving US and European clients, is hiring a Senior LLM Engineer in São Paulo. The role focuses on building AI-powered data intelligence platforms using RAG, AWS Bedrock, embeddings, vector search, and Python. Requires 5+ years of software engineering experience, strong Python, hands-on AWS Bedrock, and RAG solution expertise. Remote work offered, with competitive compensation and career growth perks.

Join Our Team

Oowlish, one of Latin America's rapidly expanding software development companies, is seeking experienced technology professionals to enhance our diverse and vibrant team.

As a valued member of Oowlish, you will collaborate with premier clients from the United States and Europe, contributing to pioneering digital solutions. Our commitment to creating a nurturing work environment is recognized by our certification as a Great Place to Work, where you will have opportunities for professional development, growth, and a chance to make a significant international impact.

We offer the convenience of remote work, allowing you to craft a work-life balance that suits your personal and professional needs. We're looking for candidates who are passionate about technology, proficient in English, and excited to engage in remote collaboration for a worldwide presence.

About the Role

We are looking for an experienced Senior LLM Engineer to build an AI-powered data intelligence platform that enables users to interact with multiple enterprise data sources through natural language.

This role focuses on designing and implementing Retrieval-Augmented Generation (RAG) solutions, semantic search, and conversational AI experiences powered by AWS Bedrock. You will build scalable AI pipelines capable of retrieving, processing, and synthesizing information from multiple structured and unstructured data sources into an intuitive chatbot experience.

The ideal candidate has strong experience building Generative AI applications, designing RAG architectures, and working with vector search, embeddings, and cloud-native AI services.

Key Responsibilities:

  • Design and implement Retrieval-Augmented Generation (RAG) architectures.
  • Build AI-powered chatbot experiences using AWS Bedrock.
  • Develop multi-source data ingestion and retrieval pipelines.
  • Design and optimize embeddings and semantic search strategies.
  • Build scalable vector search solutions for enterprise knowledge retrieval.
  • Integrate structured and unstructured data sources into AI workflows.
  • Develop prompt engineering strategies to improve response quality and accuracy.
  • Build cloud-native AI services using AWS.
  • Collaborate with engineering teams to improve AI performance, scalability, and reliability.
  • Continuously evaluate new AI technologies and best practices for enterprise LLM applications.

    • Requirements:

  • 5+ years of professional software engineering experience.
  • Strong Python development experience.
  • Hands-on experience building Generative AI applications.
  • Experience working with AWS cloud services.
  • Strong understanding of Retrieval-Augmented Generation (RAG).
  • Experience building scalable backend applications.
  • Strong analytical and problem-solving skills.
  • Experience working in Agile environments.
  • Strong written and verbal English communication skills.

    • Must Have:

  • Strong Python development experience.
  • Hands-on experience with AWS Bedrock.
  • Experience building Retrieval-Augmented Generation (RAG) solutions.
  • Experience working with:
    • Embeddings
    • Vector Search
    • Semantic Search
    • Experience building AI-powered chatbot applications.
    • Experience designing multi-source data ingestion pipelines.
    • Experience working with S3 Data Lakes.
    • Strong Prompt Engineering experience.
    • Experience integrating multiple enterprise data sources.
    • Strong understanding of Large Language Models (LLMs).
    • Experience designing scalable AI architectures.

    • Nice to Have:

  • Experience with:
    • LangChain
    • LlamaIndex
    • Pinecone
    • Weaviate
    • OpenSearch Vector
    • ChromaDB
    • FAISS
    • Experience building conversational AI applications.
    • Experience with enterprise knowledge management systems.
    • Experience with API Gateway.
    • Experience with EventBridge or SQS.
    • Experience with Infrastructure as Code.
    • Experience optimizing LLM performance and retrieval quality.
    • Experience with connected TV (CTV), AdTech, or advertising analytics platforms.

    • Benefits & Perks:

    Home office;
    Competitive compensation based on experience;
    Career plans to allow for extensive growth in the company;
    International Projects;
    Oowlish English Program (Technical and Conversational);
    Oowlish Fitness with Total Pass;
    Games and Competitions;


    You can also apply here:

    Website: https://www.oowlish.com/work-with-us/
    LinkedIn: https://www.linkedin.com/company/oowlish/jobs/
    Instagram: https://www.instagram.com/oowlishtechnology/


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    Name: oowlish

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