Projects

OpenMicList

Discover open mics and jam sessions near you. AI pipelines gather and enrich venue data from across the web. Django, React, PostgreSQL on Hetzner.

Experiences

Freelance AI/ML Engineer

Apr 2025 - Present

Delivering LLM and CV projects on Upwork.

Top Rated on Upwork, 100% Job Success ★★★★★ 5.0 (9)
★★★★★ 5.0
It was an pleasure working with Manuel! He was organized, communicated clearly, laid out his plan and timeline, and followed it.
Train Openwakeword LLM model with custom words Upwork client
★★★★★ 5.0
Excellent professional and very committed. Manuel's contributions were vital to the project's success. He is attentive, proactive, and easy to work with. 100% recommended!
AI/ML Engineer - Speech-to-Text & Audio Processing… Upwork client
★★★★★ 5.0
Manuel was truly exceptional. He delivered on time and with high quality. His very responsove and extremely flexible. Thank you.
Local replica of napkin.io as an app using Azure… Moe W., Upwork client
★★★★★ 5.0
Manuel is always a great freelancer to work with, he is knowledgable and really understand's his business
OCR table recognition Christian S., Upwork client
★★★★★ 5.0
Manuel is excellent to work with due to his exceptional skill, great communication, ability to adapt to situations, and ability to find solutions to get the job done.
Refactor GCP Gen 2 Cloud Functions in Python… Sheldon L., Upwork client
★★★★★ 5.0
It was great to work with Manuel, I can highly recommend him!
Document Split with Convolutional Neural Networks Christian S., Upwork client
★★★★★ 5.0
Great job, went over and beyond to find a solution. Will surely hire again. Highly recommended.
AI developer Upwork client
★★★★★ 4.7
It was a pleasure to work with Manuel.
Machine Learning/AI for Image Recognition… Upwork client

AI/ML Engineer

Jan 2024 - Apr 2025
Kantar Media

LMM video APIs, RAG pipelines, full-stack delivery.

Senior Data Scientist (Consulting)

Feb 2022 - Sep 2023
Repsol (via Quant AI Lab)

Led document AI with GNN and RetinaNet.

Senior Data Scientist (Contract)

Mar 2021 - Sep 2021
Huawei

Multilingual NER and entity linking for news.

Industrial PhD Researcher

Apr 2017 - Dec 2020
Computer Vision Center & omni:us

Invented CNN-RNN and GNN for document understanding.

Publications

  • Named Entity Recogntion and Relation Extraction with Graph Neural Networks in Semi-Structured Documents
  • Manuel Carbonell, Pau Riba, Mauricio Villegas, Alicia Fornés, Josep Lladós
    International Conference on Pattern Recognition, 2020 (oral)
  • A Neural Model for Text Localization, Transcription and Named Entity Recognition in Full Pages
  • Manuel Carbonell, Alicia Fornés, Mauricio Villegas, Josep Lladós.
    Pattern Recognition Letters, 2020
  • End-to-End Handwritten Text Detection and Transcription in Full Pages
  • Manuel Carbonell, Joan Mas Romeu, Mauricio Villegas, Alicia Fornés, Josep Lladós.
    International Conference on Document Analysis and Recognition Workshops, 2019
  • Joint Recognition of Handwritten Text and Named Entities with a Neural End-to-End Model
  • Manuel Carbonell, Mauricio Villegas, Alicia Fornés, Josep Lladós.
    International Conference on Document Analysis Systems, 2018