Senior Data Scientist April 2021 - At present

Company: WIZINK BANK

• Creation and calibration of machine learning models (regressions, decision trees, k-means...) for credit and market risk analysis.
• Creation, representation and analysis of new variables around data modeling in both R and Python.
• Use of R libraries for the interpretation and visualization of data, such as ggplot, plotly, highcharter, shiny etc. Data analysis to discover patterns or significant differences in populations.
• Extraction of data with queries from databases, both relations and non-relationships (MySQL, SQLServer and MongoDB).
• Software development to serve management systems, such as ETLs, API calls, Scripting, etc.

• I do a full use of Python libraries and their ecosystem (Jupyter, NumPy, Pandas, Scikit-learn, SpaCy, etc ..).
• I apply Deep learning algorithms such as NLP algorithms and neural networks (e.g., CNN, RNN, LSTM, etc.) for the creation of different models.
• In some projects I am faced with the treatment of large data sets in Big Data environments: PySpark and Hadoop.
• All projects go through a process of cleaning, transforming, modifying and treating the data in the necessary way to adapt it to the analytical approach that is proposed in the use case.
• I implement a data parallelization through Python to solve optimization problems if necessary.
• We develop implementations of Machine Learning algorithms (xgboost, Random Forest, Ranger, etc ..), and variable and time series analysis in the R programming language.
• I have a strong experience in Docker architectures and version control with Git.

Senior Data Scientist and Project Manager Oct 2019 - April 2021

Company: SANTANDER BANK

• I'm the mentor and I coordinate and train junior developers and modelers.
• I handle the management of projects monitoring and control until their transition to production.
• Resolution of unforeseen problems that may arise during product development.
• I do the presentation of analytical solutions and KPI's through Excel, Power BI, PowerPoint, etc
• We evaluate the technologies and carry out a continuous technological surveillance of your area, as well as updating your knowledge and guaranteeing the technical quality of your activity
• Advanced use of data visualization with Power BI. Creation and development of filters and reporting panels. Creation of metrics with DAX.
• Uploads and integration to the production environment of new developments and analytical models.
• Iteration with business, capturing requirements and proposing solutions for the credit strategy.
• Cooperation with other multifunctional teams promoting the implementation of the optimization scheme to achieve real improvement and growth of the business.
• Access to servers and project deployments both in Production and QA.
• Experience in architecture of Azure Cloud, AWS and version control with Git.

Data Developer Jul 2018 - Oct 2019

Company: TRAVENTIA

• Data extraction, transformation and loading (ETL) from Data Lakes.
• Creation of scripts for data processing and modeling using Python3 and NodeJS.
• Use and development of NoSQL databases such as MongoDB, Redis and ElasticSearch. And also SQL databases like MySQL.
• Development and implementation of Lambda functions and more services such as S3, EC2, Elasticsearch Service, and ElastiCache through Amazon Web Services (AWS).
• Development of microservices and apis using Python 3 and NodeJS. Backend implementation system through Javascript for web integrations or other microservices.
• Use of Kubernetes and creation of Dockers.
• Extensive experience with Git version control.
• Brief implementations of fronted with Angular 7 and React.

IoT Developer Oct 2017 - Jul 2018

Company: UST GLOBAL

• Development of applications for different devices using Python, Java and Javascript.
• Implementation of Lambda functions through AWS. Skills development for Alexa device.
• Creation of applications and bots through Dialogflow, Google Cloud with Python.
• Use of Docker and version control tools like Git.
• Fronted developments and implementations for web services using Angular 2.

Web Developer Jan 2016 - Jul 2018

Company: Freelance

• MySQL.
• Angular2, Angular 6.
• Wordpress.
• HTML.
• CSS.
• Boostrap