Learn Data Skills
Beta
Román de las Heras

Román de las Heras

Instructor

Data Scientist

Appodeal | Guadalajara, Spain

Technologies

My Portfolio Highlights

My New Course

Introduction to Natural Language Processing in Python

My New Course

Introduction to PySpark

My New Course

Image Modeling with Keras

My New Course

Introduction to Natural Language Processing in Python

Experienced Data Scientist with a passion for solving complex problems through Data Analysis and Machine Learning.

My Work

Take a look at my latest work.

course

Introduction to PySpark

course

Introduction to Python

course

Intermediate Python

course

Introduction to PySpark

Authored Curriculum

Take a look at the content that I created on DataCamp.

My Most Recent Course

Ensemble Methods in Python

4 hours15 Videos52 Exercises9,374 Learners

Courses

Ensemble Methods in Python

Courses

Ensemble Methods in Python

Tracks

Supervised Machine Learning in Python

Projects

Reveal Categories Found in Data

My Certifications

These are the industry credentials that I’ve earned.

Other Certificates

SAP Evolved Web Apps with SAPUI5

DataCamp Image Processing with Keras in Python

DataCamp Introduction to Natural Language Processing in Python

SAP Enterprise Deep Learning with TensorFlow

SAP Enterprise Machine Learning in a Nutshell (Repeat)

SAP Spatial Analysis with SAP HANA Platform

SAP Getting Started with Data Science

DataCamp Introduction to PySpark

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Intermediate Python
Introduction to PySpark
Introduction to Natural Language Processing in Python

My Work Experience

Where I've interned and worked during my career.

Appodeal | Jun 2024 - Present

Data Scientist

Data Scientist at AppGrowth team.

Chartboost | Jul 2023 - Jun 2024

Senior Data Scientist

- Senior Data Scientist at the DSP Ad & Creative Ranking team - Apply, develop, optimize, and benchmark ML approaches to push the DSP and related ML components forward - Conduct large scale A/B testing and offline / online experiments to evaluate performance of machine learning models - Analyze petabytes of structured and unstructured data points and identify meaningful signals to improve model performance - Collaborate closely with Product, Data, and Engineering teams to build new features and enhance model infrastructure - Application of recommendation engines, reinforcement learning (Bayesian Bandits), and ranking algorithms * Used Technologies: Python (PySpark, Keras, Databricks), SQL, GCP * Business or Sector: Data Science / Machine Learning / Software Development / Ad Tech
Show More

Goodwall | Oct 2022 - Jul 2023

Senior Data Scientist

- Senior Data Scientist at the Product Team. - Request and obtain data from different sources: plain text, databases, API. - Application of Machine learning, Natural Language Processing (NLP), and Data Science. - Creation and application of predictive models in Python, oriented to recommendation engine and conversion models. - Research on new machine learning techniques for solving data-related problems. - Analyze and report data to make sound product decisions that benefit the members and the business. - Work with the Product and Engineering teams to setup experiments, analytics and data tracking. - Identify, analyze, and interpret trends or patterns in complex datasets. * Used Technologies: Python (scikit-learn, Tensorflow, Flask), SQL, GCP, Airflow, Mixpanel, Segment, Appsflyer, Firebase * Business or Sector: Data Science / Machine Learning / Software Development / Product Analytics

Goodwall | Oct 2021 - Sep 2022

Data Scientist

- Data Scientist at the Product Team. - Request and obtain data from different sources: plain text, databases, API. - Application of Machine learning, Natural Language Processing (NLP), and Data Science. - Creation and application of predictive models in Python. - Research on new machine learning techniques for solving data-related problems. - Analyze and report data to make sound product decisions that benefit the members and the business. - Work with the Product and Engineering teams to setup experiments, analytics and data tracking. - Identify, analyze, and interpret trends or patterns in complex datasets. * Used Technologies: Python (scikit-learn, Tensorflow, Flask), SQL, GCP, Airflow, Mixpanel, Segment, Appsflyer, Firebase * Business or Sector: Data Science / Machine Learning / Software Development / Product Analytics

Sinch | Apr 2021 - Oct 2021

Solution Architect

- Analysis, development and integration of chatbots with Chatlayer.ai & other Sinch products. - Learning from the solutions we deliver to customers, ensure key capabilities are productized in individual products, and make products in Sinch portfolio work better together. - Develop Solution Templates. - Train other teams on our Solution Templates.

Sinch | Nov 2020 - Oct 2021

Data Scientist

- Request and obtain data from different sources: plain text, databases, API. - Application of Machine learning, Natural Language Processing (NLP oriented to LLM training, fine tuning, deployment and monitoring), and Deep Learning. - Creation and application of predictive models in Python. - Research on new machine learning techniques for solving data-related problems. - Time Series analysis applied to Financial Forecasting. - Analysis, development and integration of chatbots with Chatlayer.ai & other Sinch products. * Used Technologies: Python (PyTorch, Transformers, HuggingFace), GCP, AWS, R * Business or Sector: Data Science / Machine Learning / Software Development / Solution Architecture

DataCamp | Aug 2019 - Present

Course Instructor

- Develop and maintain the course Ensemble Methods in Python: https:// www.datacamp.com/courses/ensemble-methods-in-python * Used Technologies: Python (scikit-learn, XGBoost, CatBoost, LightGBM, MLxtend). * Business or Sector: Data Science / Machine Learning / Education

Agile Solutions | Jul 2018 - Oct 2021

Data Science Team Lead

- Provide direction and guidance to junior team members on Data Science and Machine Learning projects. - Lead Data Science and Machine Learning projects with up to 12 team members. * Used Technologies: Python (scikit-learn, Keras & TensorFlow, OpenCV), R. * Business or Sector: Data Science / Machine Learning / Software Development / Healthcare

Agile Solutions | Jul 2016 - Oct 2021

Data Scientist

- Data Scientist @ SAP Digital Interconnect (now Sinch) - Selecting features, building and optimizing classifiers using machine learning techniques - Data mining using state-of-the-art methods - Extending company’s data with third party sources of information when needed - Identify information that is relevant for building analytic systems - Processing, cleansing, and verifying the integrity of data used for analysis - Doing ad-hoc analysis and presenting results in a clear manner - Time Series analysis applied to Financial Forecasting - Developing Natural Language Processing solutions

SAP | Jul 2016 - Oct 2020

Data Scientist

- Data Scientist @ SAP Digital Interconnect - Data Analysis and discovery of the product SAP Consumer Insight 365. - Request and obtain data from different sources: plain text, databases, API. - Processing, cleaning, and verification of data integrity used for analysis. - Application of Machine learning, text mining and statistical analysis. - Creation and application of predictive models in Python, R and Java. - Qualitative and quantitative data research, inferential statistics, and hypothesis testing. - Solution of business problems, promoting pattern detection in potentially large datasets. - Investigation of new data science techniques for solving problems. * Business or Sector Data Science / Machine Learning / Software Development

Universidad Nacional Autónoma de Honduras (UNAH) | May 2015 - Jun 2016

Teaching Instructor

Full-time Math teaching instructor. Classes taught: Statistics, Pre-calculus, Geometry & Trigonometry, Calculus I, Calculus II, Programming (C++), and Discrete Mathematics.

Universidad Nacional Autónoma de Honduras (UNAH) | May 2015 - Jun 2016

Teaching Instructor

- Teaching Instructor in the Department of Mathematics. - Classes taught: Statistics, Pre-calculus, Geometry & Trigonometry, Calculus I, Calculus II, Programming (C++), and Discrete Mathematics. * Used Technologies: C, C++, Matlab * Business or Sector: Education

TGF Macaw Soft | Jan 2015 - Dec 2015

ASP.NET Developer with C#

- Developed the following information systems: o SISPROEXP (Information System for Management of Exportation) o SISPROTUR (Information System for Management of Tourism) - Co- developer at: o SISNAPROIN (Information System for Management of Investment) - Developed frontend and backend for web. * Used Technologies: ASP.NET with C#, MSSQL2014, JavaScript, HTML, CSS, & Bootstrap * Business or Sector: Government / Tourism / Exportation / Investment

Universidad Nacional Autónoma de Honduras (UNAH) | Jan 2015 - Dec 2015

Web Developer

- Designed and developed frontend and backend for web with responsive design. * Used Technologies: ASP.NET with VB, MSSQL2008, JavaScript, HTML, CSS, & Bootstrap. * Business or Sector: Labor Contest

Universidad Nacional Autónoma de Honduras (UNAH) | Sep 2014 - May 2015

Laboratory Instructor

- Laboratory Instructor at the Computer Center of Mathematics. Taught the laboratories of Social Statistics, Bio-statistics, and Statistics for Engineering. * Used Technology: IBM SPSS, Matlab, Windows Server, MS Access * Business or Sector: Education

Nashville School - Valle de Ángeles | Aug 2012 - Jun 2014

Math, Physics, and Chemistry Teacher

- Guide Teacher for Seventh Grade. - Classes taught: Mathematics, Science, Physics, and Chemistry. * Business or Sector: Education

My Education

Take a look at my formal education

Engineer's degree (Magna Cum Laude) in Systems EngineeringUniversidad Nacional Autónoma de Honduras (UNAH) | 2017
Bachelor's degree (Magna Cum Laude) in Mathematics with Computer OrientationUniversidad Nacional Autónoma de Honduras | 2016

About Me

Román de las Heras

Román de las Heras is a seasoned Data Scientist, currently working at Appodeal. He studied Systems Engineering and took a simultaneous Math degree with Computer Science at the National Autonomous University of Honduras (UNAH). The ensemble of these two careers drove him into data science. His daily work includes developing ML models, building recommendation engines and ranking systems, training junior team members on the field, and doing ad-hoc data analyses to present results and insights. He is also a passionate and experienced educator, as well as a strong believer in "learning by doing".

Powered by

  • Work
  • Curriculum
  • Certifications
  • Courses
  • Experience
  • Education
  • About Me
  • Create Your Data Portfolio for Free