Liam Montero Guillemi

Liam Montero Guillemi

DATA SCIENTIST | MACHINE LEARNING & PREDICTIVE ANALYTICS
United Arab Emirates
Spanish, English

نبذة عني

Data Scientist specialized in machine learning and analytics to solve business problems through data-driven decisions. Focused on delivering clear, actionable insights that generate measurable business impact.

الخبرة

Data Scientist

Freelancer · Dubai, UAE
Jan 2025 - حتى الآن · 1 سنة 6 أشهر

I led data science projects from start to finish, from business problem definition to the delivery of actionable insights and predictive models.I designed, built, and validated regression, classification, and recommendation system models using Python (TensorFlow, Keras) and R.I used advanced SQL to extract, clean, and prepare large volumes of data, ensuring quality for modeling.I translated model performance into measurable business impact, including projecting a 34% increase in web traffic and achieving an RMSE of 0.783 in a recommendation engine.

Data Scientist

José Martí International Airport – Havana, Cuba
Mar 2021 - Nov 2023 · 2 سنوات 8 أشهر

Worked on predictive modeling, passenger analytics, and operational reporting at a major international airport.
Focused on flight punctuality, customer experience, and standardized data pipelines across departments.
Built a flight delay risk model that, with only 30% alert coverage, identified 72% of delayed flights, improving on-time performance by +4.3pp on targeted flights in 12 weeks.
Linked 4,200+ passenger surveys with operational KPIs; satisfaction scores increased from 3.6 to 4.1, while formal complaints per flight decreased –10% after targeted improvements.
Developed SQL data marts, R pipelines, and Tableau dashboards updated hourly, reducing manual reporting time by 80% and standardizing KPIs (punctuality, baggage, gate changes, cancellations, security wait times).
Delivered three recurring reports with measurable results: Weekly Operations (–12% gate changes), Passenger Experience (–9% peak-hour queues), and Baggage & Punctuality (–8% incidents).

Data Scientist

José Martí International Airport, Havana, Cuba
Mar 2021 - Nov 2023 · 2 سنوات 8 أشهر

Built a flight delay risk model that identified 72% of delayed flights, improving on-time performance by +4.3pp, Linked 4,200+ passenger surveys with operational KPIs; satisfaction scores increased from 3.6 to 4.1, Developed SQL data marts, R pipelines, and Tableau dashboards updated hourly, reducing manual reporting time by 80%, Delivered three recurring reports with measurable results: Weekly Operations, Passenger Experience, and Baggage & Punctuality

الشهادات

Data Scientist Professional

DataCamp · Dubai, UAE · 2025

المهارات

جيرا بايثون (لغة برمجة) سكرم لغة الاستعلامات الهيكلية (SQL) أجايل كيراس التحقق من النموذج تينسور فلو جوجل سويت لغة البرمجة آر (R) تابلو تريلو GLMNET tidymodels dplyr ggplot2 caret readr lubridate pandas numpy Scikit-learn Matplotlib Data Storytelling Regression (GLM) Classification Matrix Factorization Time Series Forecasting Decision Trees CNN LSTM Supervised and unsupervised models tfdatasets Dropout Recurrent Dropout Early Stopping Model Checkpointing Learning Rate Scheduling Markdown Git Notion Excel Google Sheets Bash tidyr Power BI Regression GLM Supervised Learning Unsupervised Learning
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