Tools & technologies
Deployment and MLOps
Taking the model to production and keeping it alive: an inference API, containers, CI/CD, a version registry and drift monitoring.
Taking the model to production and keeping it alive: an inference API, containers, CI/CD, a version registry and drift monitoring.
Serving with guarantees
The same pipeline that trains is the one that serves, so preprocessing is identical. Schema-based input validation, decisions tied to a cost-based threshold and the model version recorded in every response.
Watching for drift
A reference profile of the training data and drift metrics (PSI) over live traffic, exposed to Prometheus and Grafana. You learn the model is degrading before the business does.
Operating locations
Studio in Madrid
Based in Madrid, working remotely with brands, studios and agencies inside and outside Spain.
Info graphic
Decision flow
Train and serve, the same pipeline.
Info graphic
Friction map
Cost-based decisions.
Info graphic
Journey shape
Drift monitored.
Work with JMWEB
Let's build something that reaches production.
It all starts with a conversation. Bring a dataset, a goal or a model that is stuck; I will take care of the rest.
Start a project
Next projects:

Credit Risk Platform
End-to-end MLOps platform for credit-default scoring: reproducible training with a versioned model registry, a FastAPI inference API with input validation, PSI drift monitoring and a Prometheus and Grafana observability stack, all containerised with CI. Code at github.com/delcenjo/credit-risk-platform.
View project
Transformer from scratch
A GPT-style language model implemented from scratch in PyTorch: multi-head attention, causal masking and residual blocks written by hand, plus a byte-pair tokenizer and an ablation study. Code at github.com/delcenjo/transformer-from-scratch.
View project
Credit Risk Model
Credit-default risk model with rigorous evaluation: a leakage-free pipeline, cross-validated model comparison, calibrated probabilities, a cost-based decision threshold and per-segment error analysis. Code at github.com/delcenjo/credit-risk.
View project
AI Insight Assistant
An assistant that combines RAG and a SQL agent over your data: it retrieves from a document corpus and queries a database, served with FastAPI and Streamlit and packaged in Docker. Code at github.com/delcenjo/ai-insight-assistant.
View project