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AI Engineer - RAG & Semantic Search

Sao Paulo, SÃO PAULO, br💼 Full-time🗓 2026-07-10 → 2026-07-31

Core

Designing and maintaining vector databases, embedding pipelines, and semantic search mechanisms to power data intelligence solutions for agricultural crop protection.

Role type

Full-Stack Developer (RAG & Semantic Search focus)

Builds

Scalable data intelligence applications and semantic search infrastructure for crop protection solutions

Domain

Agriculture / AI & Machine Learning

Deliverable

production ML models | product features

Required skills

RAG design and evaluation, vector databases (pgvector, Pinecone, Weaviate, Chroma), embedding pipelines, SQL schema design, NLP-to-SQL translation, Python orchestration, semantic search systems

Preferred skills

NLP concepts (tokenization, semantic similarity, NER), evaluation frameworks for retrieval and generation, client-centric solution delivery

Technologies

pgvector, Pinecone, Weaviate, Chroma, OpenAI, Cohere, Sentence Transformers, Python, SQL, LLMs

Responsibilities

Design and maintain vector database architectures for large-scale retrieval; Build and optimize embedding pipelines including document ingestion and chunking; Develop NL-to-SQL interfaces using LLMs; Evaluate and compare RAG pipeline quality metrics; Implement APIs and backend integrations; Contribute to software architecture and infrastructure design

Seniority

Mid-level (3-5 years experience), hands-on IC

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