Luis Bronchal, Developer in Logroño, Spain
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Luis Bronchal

Verified Expert  in Engineering

Machine Learning Developer

Logroño, Spain
Toptal Member Since
June 9, 2020

Luis is skilled in software development, machine learning, and data engineering. He is proficient with the entire data process, from gathering to model deployment. He has set up several SaaS platforms, worked on R&D projects, delivered custom Facebook apps, and created a powerful and intuitive SaaS social media marketing platform.


PySpark, Python, Churn Analysis, Google Cloud Platform (GCP), Pytest...
Trisocial Social Media
Data Analysis, Machine Learning, R, Python, Linux, eCommerce, SaaS, Amazon EC2...
Trisocial Social Media
Amazon Web Services (AWS), Twitter API, Facebook API, JavaScript, HTML, PHP...




Preferred Environment

Git, Linux, Spark, TensorFlow, Scikit-learn, Python

The most amazing... CRM I built collected data from different social networks, providing companies with valuable insights about their customers.

Work Experience

Machine Learning Engineer

2020 - PRESENT
  • Developed Python and PySpark libraries to improve a telecommunications company's big data machine learning models.
  • Created machine learning NLP models for product classification.
  • Constructed Python codebase refactoring, including tests and deployment on the Google Cloud Platform (GCP).
  • Optimized a PySpark application for a loyalty program.
  • Developed LTV and Uplift models for a telecommunications company.
Technologies: PySpark, Python, Churn Analysis, Google Cloud Platform (GCP), Pytest, Machine Learning, Scikit-learn, Git, Data Science, Neural Networks, Artificial Intelligence (AI)

Machine Learning Engineer

2016 - 2020
Trisocial Social Media
  • Performed machine learning and data analysis of data obtained from Facebook, Twitter APIs, or scraped from the web.
  • Analyzed marketing data and customer clustering to clarify focus.
  • Developed ETLs and several data dashboards for clients.
Technologies: Data Analysis, Machine Learning, R, Python, Linux, eCommerce, SaaS, Amazon EC2, Amazon S3 (AWS S3), SQL, Docker, Data Science, Neural Networks, Artificial Intelligence (AI)


2011 - 2016
Trisocial Social Media
  • Designed, implemented, and managed a SaaS platform over AWS cloud to run social media contests on Facebook, Twitter, and Instagram.
  • Designed and implemented a social media CRM platform.
  • Developed Facebook apps for different business domains.
Technologies: Amazon Web Services (AWS), Twitter API, Facebook API, JavaScript, HTML, PHP, Linux, eCommerce, Amazon EC2, Amazon S3 (AWS S3), Docker, Amazon RDS

Head of Information Systems Department

2009 - 2010
Arsys Internet
  • Managed the information systems department. Headed the process of billing and data reporting to the board.
  • Supervised the ERP and CRM modification projects to completion.
  • Coordinated with other departments such as the administration and sales department.
Technologies: MicroStrategy, Navision, Microsoft SQL Server, SQL

Head of Product Development Department

2005 - 2009
Arsys Internet
  • Managed the product development department responsible for the continuous technical improvement of existing products and the development of new products, and the maintenance of the main technical systems.
  • Managed the project design of new, shared, hosting control panels.
  • Coordinated with other departments, such as the operations and security department.
Technologies: Microsoft SQL Server, MySQL, Perl, PHP, Windows, Linux

Project Manager

2002 - 2005
Arsys Internet
  • Analyzed, designed, and project managed the ISPD project; implementation of a dedicated hosting Linux server with a control panel.
  • Analyzed, designed, and managed the CUBE project, inlcuding control panel software for windows and Linux servers.
  • Coordinated the technical integration of the acquired company, Piensa Solutions.
Technologies: MySQL, PHP, Windows, Linux

Software Engineer

2001 - 2002
Arsys Internet
  • Developed the first Linux hosting platform of the company.
  • Managed the R&D in Linux systems development for shared hosting and adaptation of customer control panels.
  • Designed and developed the Linux PostgreSQL service platform.
Technologies: JavaScript, Perl, PHP, Linux, SQL

LTV and Uplift models

I developed custom PySpark packages to build Uplift and LTV models for an international telecommunication company. I trained and evaluated models on their data with those tools, working on the cloud platform GCP.

Social Media Marketing Platform

I designed and built a SaaS social media marketing platform on Amazon Cloud. I had to investigate how to integrate the different social networks APIs such as Facebook and Twitter. The platform was used for clients all around the world.

Sentiment Analysis in Twitter

As a machine learning engineer, I built and evaluated different models to identify the sentiment associated with several brands on Twitter. I completed the whole pipeline, from data gathering to production deployment of the models.

Social CRM

I designed and led the development of a social customer relationship management (CRM) tool. I had to evaluate and choose the best data tools for the project, such as Spark and Redshift, and work on different SQL optimizations.

Design and Implementation of a Linux Shared Hosting Platform

I was the architect and the main system and web developer of the Linux Shared Hosting Platform of one of the biggest hosting companies in Spain. It was an intensive R+D job. Millions of people used this service.


Python, SQL, PHP, R, Perl, JavaScript, HTML, Python 3




TensorFlow, PySpark, Pandas, NumPy, Keras, Scikit-learn, Facebook API, Twitter API


Git, Apache Airflow, GitHub, Navision, Pytest, Celery, Apache


Data Science, Testing, Object-oriented Programming (OOP), Agile


Jupyter Notebook, Amazon EC2, Docker, Amazon Web Services (AWS), Linux, Windows, Google Cloud Platform (GCP)


Relational Databases, Amazon S3 (AWS S3), MySQL, Google Cloud, Redshift, Microsoft SQL Server


Machine Learning, Artificial Intelligence (AI), Data Analysis, Software Development, Algorithms, Data Analytics, Back-end, Neural Networks, Amazon RDS, Clustering, Deep Learning, Web Scraping, Big Data, Natural Language Processing (NLP), Data Engineering, eCommerce, Text Classification, Data Modeling, GPT, Generative Pre-trained Transformers (GPT), MicroStrategy, Churn Analysis, SaaS, Dataproc

1994 - 2000

Master of Science Degree in Computer Science

Zaragoza University - Spain


Data Engineering Nanodegree



Tensorflow Specialization



Data Engineering on Google Cloud Platform Specialization

Coursera / Google


Machine Learning Engineer



Deep Learning Nanodegree



Distributed Machine Learning with Apache Spark

edX / Berkeley University


Data Science Specialization

Coursera / Johns Hopkins University


Machine Learning

Coursera / Stanford University

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