Manuel Costa Reis, Developer in Lisbon, Portugal
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Manuel Costa Reis

Verified Expert  in Engineering

Statistics Developer

Lisbon, Portugal
Toptal Member Since
May 5, 2020

Manuel is an economist turned software developer with a focus on combining research and statistical understanding of data while producing good, clean, and efficient code. He has worked in diverse areas such as economic research, recommendation systems, and natural language processing with personal projects that have directly impacted the lives of thousands of people and helped guide large scale investments by financial institutions.



Preferred Environment

Ruby, Doom Emacs, Git, JavaScript, Python, Jupyter, MacOS

The most amazing...

...project I've worked on was a recommendation system for job seekers that produced real results and had an impact on peoples lives.

Work Experience

Data Scientist

2019 - 2020
  • Developed a natural language model using Keras that extracted features from real estate listings.
  • Prepared Python packages for deploying several data science models.
  • Reviewed and refactored work from other data scientists focusing on code quality and model efficiency.
Technologies: Keras, MySQL, Python

Data Developer

2017 - 2019
  • Spearheaded the creation of the recommendation system for candidates on the platform.
  • Created a system for streaming user information as they used the website to our databases.
  • Implemented an intelligent sorting system for jobs using employee needs for recruitment and the candidate profiles.
  • Implement several landing pages from the main website to adjacent events.
  • Revamped the chat on the platform using WebSockets.
Technologies: PostgreSQL, JavaScript, Ruby on Rails (RoR), Ruby, Python

Communications and Marketing

2015 - 2017
Portuguese Economic Journal
  • Developed a marketing and communications strategy that helped improve the reach of the journal and improve important metrics such as the impact factor.
  • Managed the 4,000+ community of researchers by creating the website for the Journal, a newsletter, and video interviews with important Portuguese economists.
  • Implemented processes and tools for future journal collaborators that are being used to this day.
Technologies: Adobe Suite, CSS, HTML, JavaScript


2012 - 2013
  • Created in-depth research reports on the Portuguese healthcare sector, credit markets, and external economy.
  • Managed a weekly economic report summarizing main events and trends.
  • Revamped the website and communications platform for the company.
Technologies: STATA, Microsoft Excel

Predicting Real Estate prices after Covid-19
A statistical analysis of the impact of the coronavirus on the price of real estate in Portugal.
Digging through several sources of data and using an ARMA model I created a simple model of real estate prices in Portugal that predicted a 15% drop in prices this year.

Personal Website
A fully React-based website built to host personal information. It's a mostly visual experiment that focused on being easily modifiable and lightweight. I also created a lightweight blog that uses markdown files to display information.
2013 - 2015

Master of Science Degree in Economics and Financial Markets

Nova School of Business and Economics - Lisboa, Portugal

2009 - 2012

Bachelor's Degree in Economics

Católica Lisbon School of Business and Economics - Lisboa, Portugal


React, Scikit-learn, Pandas, NumPy, Keras


Adobe Premiere Pro, Adobe Audition, Jupyter, Git, Microsoft Excel, STATA


Ruby on Rails (RoR), Flask, Doom Emacs


Python, Ruby, JavaScript, HTML, CSS


Agile Software Development, Data Science


PostgreSQL, MySQL


MacOS, Adobe Suite


Data Reporting, Data Analytics, Data Analysis, Statistics, Machine Learning

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