Blanca M Barrufet Garbayo
Associate AI Engineer
Chicago | blancamariabarrufet@gmail.com | www.blancabarrufet.me
Associate AI Engineer currently at SPEJ LLC, building and testing the automations, integrations, and agent workflows that ship in client engagements. Works alongside solution architecture on implementation and quality review.
Skills
- AI & Data: RAG, GraphRAG, agents and tool calling, LLM evaluation, embeddings, vector databases (pgvector), LangChain, LlamaIndex, LangGraph, ETL pipelines, SQL, data modeling
- Programming & Tools: Python, Java, C/C++, TypeScript, Next.js, REST API development, PostgreSQL, Supabase, AWS (Bedrock, Lambda, S3, Cognito), Docker, Git
- Personal Skills: Problem-solving, communication, team-work, analytical thinking, adaptability
Professional Experience
Associate AI Developer - SPEJ LLC
September 2026 - Present- Builds end-to-end AI systems, including interfaces, MCPs, APIs, model integrations, RAG pipelines, and the data flows that hold them together.
- Builds and tests the automations, integrations, and agent workflows that ship in client engagements, working alongside solution architecture on implementation and quality review.
- Brings a background in computer science, data science, research, and secure AI and data solutions for organizations that require strong governance.
Freelance AI Engineer
2025 - August 2026- Junsu · AI compliance platform · junsu.es — pgvector retrieval over compliance evidence with page and character-offset provenance, and a batched LLM pipeline mapping controls to risks with human confirmation before scoring. On AWS (Bedrock, Lambda, S3, Cognito) with per-tenant Postgres row-level security; live with its first enterprise customer.
- TuDiaDeBlanco · All-in-one AI wedding platform · tudiadeblanco.com — full platform on Next.js, Supabase and Stripe (guests, seating, budgets, RSVP, public wedding pages), plus a visibility-scoped RAG chatbot and an agent that tool-calls live platform data.
Check blancabarrufet.me for more information.
Digital Health Data Analyst - uVic
June 2026 - August 2026- Digital Health Data Analyst, leading the web architecture of a digital health indicators platform with scalable data integration.
- Conducting data validation and analytical workflows, and designing AI agents to automate healthcare data analysis.
AI and Data Engineer - Connecthink Innovation, S.L.
November 2025 - August 2026- Development of enterprise AI chatbots for querying and managing large-scale datasets.
- Implementation of RAG architectures using LlamaIndex, pgvector, LangGraph, and GraphRAG.
- Integration with internal systems and optimization of semantic search and response quality.
Teacher assistant - URL - La Salle
September 2024 - January 2026University collaborator as a maths, algebra, calculus and Maths Fundamentals teacher assistant in the AI degree
Education
Computer Engineering and Business and Management student
September 2022 - PresentUniversity of La Salle - URL
- Strong academic focus combining software engineering, data, and business strategy.
- High workload and rigorous program requiring strong discipline, adaptability, and continuous learning.
MS Data Science
Start in Aug 2026Lewis University
Additional Information
- Languages: Spanish & Catalan (native), English (C2), German (beginner)
- Certifications & Awards: CCNA, C2 English; Scholarship for Women in Engineering, First Lego League Winner