Javier Rebull Javier RebullFull Stack & AI
3 international presentations · 2026
Full Stack & AI

Javier
Rebull

Full Stack Engineering AI & Machine Learning Software Architecture FinTech M.Sc. Applied AI
Javier Rebull
20Years of experience
17Certifications
4Spoken languages

Summary

Senior full stack engineer and AI/ML specialist with 20 years delivering mission-critical technology for regulated financial services — banking, payments, credit cards and enterprise platforms — with end-to-end ownership from discovery and technical scoping through system design, build and production rollout. Hands-on deploying machine learning models into production environments, building MLOps pipelines and leading large-scale platform migrations without critical incidents. Known for aligning executive priorities, engineering teams, risk partners and external banking institutions around measurable outcomes, and for keeping delivery moving in complex, high-stakes environments.

Speaking & Research

Accepted · Oral presentation · Springer LNCS · 2–6 November 2026

MICAI 2026 — 25th Mexican International Conference on Artificial Intelligence

Chihuahua, Mexico · EpiForecast-MX · Tecnológico de Monterrey & IMSS

“Forecasting Weekly Depression Incidence in Mexico: A Multi-Model Framework with Auditable Per-Series Model Selection”

Accepted · Poster · Springer CCIS · 2–6 November 2026

MICAI 2026 — 25th Mexican International Conference on Artificial Intelligence

Chihuahua, Mexico · Universidad Autónoma de Ciudad Juárez (UACJ)

“A Two-Condition Diagnostic for Decoder-Based Multi-Objective Search: When Blind Sampling Beats a Mismatched NSGA-II”

Presented · ePoster · 23–26 September 2026

26th WPA World Congress of Psychiatry

Stockholm, Sweden · Digital Psychiatry track

“Population-level prediction of depression, Alzheimer’s disease, and Parkinson’s disease incidence using artificial intelligence: implications for health service planning”

Presented · Oral presentation · 27–29 August 2026

CALASS 2026 — Congrès de l'ALASS

Université de Montréal · Montréal, Canada

« De la surveillance épidémiologique à l’intelligence prédictive : le rôle de l’intelligence artificielle dans l’organisation prospective des systèmes publics de santé »

From epidemiological surveillance to predictive intelligence: the role of artificial intelligence in the prospective organization of public health systems.

Presented EpiForecast-MX, an epidemiological intelligence platform built at Tecnológico de Monterrey with the Instituto Mexicano del Seguro Social (IMSS) that forecasts weekly notified cases across Mexico's 32 states on a 52-week horizon. Prophet, DeepAR, Ensemble and Stacking engines are selected per series and re-validated against every new national epidemiological bulletin.

Presented · Poster · 21–22 May 2026

2nd Public Health Conference & 2nd HSG Europe Preconference

Skopje, North Macedonia

“AI-Based Forecasting to Shift Epidemiological Surveillance toward Predictive Approaches: Depression, Alzheimer’s, and Parkinson’s as Use Cases”

Forecasting Dengue in Mexico: An End-to-End Data Science Story

Medium · Article
From a messy government PDF to a 52-week forecast that holds together through an epidemic year — data extraction and cleansing, feature engineering, model selection and evaluation.
All certificates, with verification

Work Experience

Sr. Associate Application Development
Santander Bank US
Mar 2024 – Present · Quincy, MA
  • Architected and led the Gravity Middleware Project, managing full stack migration from IBM Mainframe/DB2 to private cloud (Microfocus/Oracle) — zero critical incidents in production.
  • Directed migration of 500+ WAS/WebSphere servers to modern cloud infrastructure, designing scalable distributed system architecture.
  • Implemented end-to-end MLOps pipelines for automated model deployment, monitoring, and continuous integration in production banking environments.
  • Leading core banking full stack development for Certificate of Deposits at OpenBank digital bank, building front-end interfaces and back-end services.
  • Conducted design reviews and code reviews across engineering teams, ensuring best practices in testability, efficiency, and code quality.
Associate Application Development
Santander Bank US
Sep 2019 – Feb 2024 · Quincy, MA
  • Maintained stable, incident-free production environments across distributed banking systems at scale.
  • Designed and developed UI/UX interfaces for internal banking applications using front-end technologies, improving user satisfaction by 35%.
  • Led full stack development on critical projects: SBNA Loans COVID-19 Relief Program, Regulatory FDIC 370, Whole Correspondence Project.
  • Triaged and debugged production system issues by analyzing root causes across hardware, network, and service layers.
Computer Systems Analyst
Vass IT US
Apr 2013 – Sep 2019 · Cambridge, MA
  • Developed Computer Vision solutions for document processing and fraud detection, integrating ML models into production back-end systems.
  • Built full stack applications for loans management, leading IT project portfolios and PMO activities across cross-functional teams.
  • Designed and tested software products end-to-end, from requirements through deployment and maintenance.
Spec Analytics Analyst 2
Citibank Banamex
Jun 2010 – Apr 2013 · Mexico City, Mexico
  • Designed and optimized scalable, secure distributed systems for global financial services processing millions of daily transactions.
  • Developed data-driven algorithms (SAS/Python), increasing marketing response rates by 20% and reducing delinquency by 10%.
  • Created interactive dashboards and front-end interfaces for executive reporting and real-time data visualization.
Sr. Programmer
Accenture
Aug 2007 – May 2010 · Mexico City, Mexico
  • Developed and maintained large-scale core financial systems (COBOL, Java) for BBVA Bancomer and Santander México with zero critical incidents.
  • Designed front-end user interfaces for mainframe applications, improving operational efficiency and developer experience.
Systems Analyst & IT Help Desk Analyst
Microsistemas · Ford Credit Company
Aug 2006 – Aug 2007 · Mexico City, Mexico
  • Help desk consultant for Ford’s department, ensuring system stability and security and providing software and hardware solutions.

Education

M.S. in Artificial Intelligence and Data Analytics
Universidad Autónoma de Ciudad Juárez (UACJ)
2025 – 2027 (Expected) · Ciudad Juárez, Mexico

Focus: Smart Optimization, Linear Optimization, Non-Linear Optimization, Data Engineering

M.Sc. in Applied Artificial Intelligence
Monterrey Institute of Technology and Higher Education (ITESM)
2024 – 2026 · Mexico City · GPA: 4.0/4.0 · Degree conferred

Relevant Coursework: Data Science, Machine Learning, AI, Data Visualization, Fintech & IoT

B.S. in Computer Science & Electronics Engineering
The National Polytechnic Institute of Mexico (ESCOM IPN)
2002 – 2006 · Mexico City · GPA: 3.28/4.0

Relevant Coursework: Programming, Software Engineering, AI, Computer Networks, Data Structures, Algorithms & Operating Systems

Notable Projects

Text Classification using RNNs (PyTorch)

Mar 2025
Built and evaluated an RNN in PyTorch for AG_NEWS article classification — preprocessing, model architecture design, training pipelines, and evaluation with confusion matrices.

IoT for Sustainable Urban Development

Feb 2025
Analyzed IoT's role in addressing urban challenges using distributed sensor networks — traffic congestion in Boston, public lighting in Mexico City.

Multilayer Neural Network from Scratch (NumPy)

Jan 2025
Implemented a fully connected NN for ASL letter recognition — forward/backward propagation, gradient descent optimization, and performance benchmarking.

Stock Price Prediction using Recurrent Models

Nov 2024
Developed and compared LSTM, ARIMA, Prophet, and Naïve algorithms for Apple stock price time-series forecasting.

Logistic Regression for Breast Cancer Diagnosis

Built a predictive model using logistic regression on the Wisconsin dataset — preprocessing, feature selection, and evaluation.