Job Description
About The Role
We are seeking an experienced Machine Learning Engineer with deep expertise in building production-grade Retrieval-Augmented Generation (RAG) systems and AI agents. The ideal candidate will have a strong foundation in machine learning, natural language processing, and practical experience implementing end-to-end RAG pipelines and agent orchestration.
Key Responsibilities
Atacana Group, Inc. is a global competitive strategy and intelligence firm focused on the healthcare industry. We need your help automating complex processes end-to-end by combining technology with human domain expertise.
Why join our fast-growing team?
Salvador
We are seeking an experienced Machine Learning Engineer with deep expertise in building production-grade Retrieval-Augmented Generation (RAG) systems and AI agents. The ideal candidate will have a strong foundation in machine learning, natural language processing, and practical experience implementing end-to-end RAG pipelines and agent orchestration.
Key Responsibilities
- Design and implement sophisticated RAG architectures incorporating query classification, retrieval optimization, reranking, repacking, and summarization components
- Develop and optimize chunking strategies for document processing, balancing context preservation with retrieval efficiency
- Research and implement advanced retrieval methods combining sparse (BM25) and dense retrieval with hybrid search techniques
- Build and optimize vector databases for efficient similarity search at scale
- Create evaluation frameworks to measure RAG system performance across multiple dimensions (faithfulness, relevancy, retrieval accuracy)
- Design and deploy multi-agent systems with effective orchestration patterns
- Develop multimodal RAG capabilities integrating text, images, and other modalities
- Lead technical design reviews and mentor junior engineers in RAG/agent implementation best practices
- 3+ years of experience in machine learning engineering with focus on NLP systems
- Extensive experience with RAG components and architectures:
- Query optimization and rewriting
- Vector databases
- Document chunking and embedding strategies
- Reranking methods
- Prompt engineering and LLM integration
- Hands-on experience with agent frameworks:
- LangChain & LangGraph
- Agent communication protocols
- Workflow orchestration
- Proficiency in:
- Python (advanced)
- Vector similarity search
- Semantic embeddings
- Document processing pipelines
- Fast learner and curious about the latest technologies
- Experience implementing RAG systems serving high query volumes in production
- Experience in information retrieval, semantic search, or related areas in technical fields
- Experience with multimodal retrieval and generation
Atacana Group, Inc. is a global competitive strategy and intelligence firm focused on the healthcare industry. We need your help automating complex processes end-to-end by combining technology with human domain expertise.
Why join our fast-growing team?
- Passion for innovation. We are passionate about AI and the advancement of innovations in healthcare
- A culture of results, not hours spent. Flexible hours let us schedule our days so that we do our best work without missing out on life's important moments.
- Freedom of location.100% remote work. We are a globally distributed team, so we can work wherever we're happiest.
- Diverse and global team. Our team members are located across 4 continents and are located in 11+ countries.
- Growth mindset. We are a learning organization which has allowed us to grow rapidly.
Salvador