Leandro Lima

Leandro Lima

Mentor
5.0
(5 reviews)
US$27.00
For every 15 mins
12
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First 15 mins free for your first session
ABOUT ME
Machine Learning Engineer working at Meta/Facebook
Machine Learning Engineer working at Meta/Facebook

I'm a machine learning engineer with a degree in computer science (BSc and MSc in computer science, and a PhD in data science/bioinformatics). I have been a Python and R Programmer since 2009 and have experience as a Computer Science lecturer and a Data Scientist.

I can help you with data acquisition and wrangling, training, testing Machine Learning models, and deploying them to production.

At Meta, harnessing machine learning to enhance the integrity of global social platforms is not just a job—it's a mission. Within the Integrity Measurement team, we're dedicated to identifying and mitigating harmful content, ensuring a safer experience for millions of users on Facebook and Instagram. Our work is pivotal in shaping the digital landscape through ethical AI practices.

Leveraging over five years of bioinformatics and software engineering expertise, the focus has shifted from understanding neurological diseases to making social media a secure environment. My background in applying machine learning to genomic data enables our team to develop innovative solutions that measure and reduce online risks. Fluent in Python and driven by data, we're committed to advancing the field of online safety.

Let's talk!

Portuguese, English
Eastern Time (US & Canada) (-04:00)
Joined July 2019
EXPERTISE
10 years experience | 2 endorsements
1 year experience
10 years experience

REVIEWS FROM CLIENTS

5.0
(5 reviews)
maz Faraj
maz Faraj
April 2020
Leandro was amazing, I just started my MS program in Data Analytics and I reached out to Leandro for some help in landing an internship, fixing my resume and growing my knowledge. He was very helpful and as an expert in this field he gave me some great tips. I will keep in mind when I'm working on Kaggle or if I need help with any project.
Michael Ramirez
Michael Ramirez
January 2020
Leandro was extremely helpful, helped resolve my issue and explained his process along the way. Thank you!
Alexis Monique
Alexis Monique
December 2019
Leandro is extremely knowledgeable and sharp. He was a pleasure to work with.
Ryan Bilkie
Ryan Bilkie
December 2019
Really excellent data/code mentor. He was very flexible with me when I got our meeting wrong, his work is accurate, his explanations are clear, he knows what he's doing. 10/10
SOCIAL PRESENCE
GitHub
batb10
Storytelling of a skateboarding competition with Python + Pandas + matplotlib
Jupyter Notebook
2
0
citations_network
Python
1
0
Stack Overflow
91 Reputation
0
1
6
EMPLOYMENTS
Machine Learning Engineer
Meta/Facebook
2022-03-01-Present

sed ML with first team to improve video recommendation algorithms for new users in the Facebook app. Also built and maintained data pi...

sed ML with first team to improve video recommendation algorithms for new users in the Facebook app. Also built and maintained data pipelines (SQL/Presto + Python), and set up and monitored experiments (A/B tests) for millions of users.

  • Launched a few models that increased the number of sessions and watch time without regressing other safety and business metrics.
  • With second team, worked on ML models that predicted virality growth on Facebook and Instagram. Ran feature selection, trained, tested/validated, shipped, and monitored several metrics (e.g., accuracy, feature coverage, API error rate, etc.) to improve these models, making millions of predictions daily.
Python
SQL
Apache Spark
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Python
SQL
Apache Spark
Apache Hive
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Bioinformatician II
Gladstone Institutes
2016-09-01-2022-03-01
I apply Machine Learning techniques in genomic data to understand why people develop ALS and Parkinson's disease. I also lead a workshop ...
I apply Machine Learning techniques in genomic data to understand why people develop ALS and Parkinson's disease. I also lead a workshop in R and command-line tools.
Python
R
Machine Learning
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Python
R
Machine Learning
Statistics
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Data Science Tutor
Wyzant
2016-09-01-2019-11-01
Mentoring students from Data Science courses in programming and data analysis (runningexploratory data analysis, building models, plottin...
Mentoring students from Data Science courses in programming and data analysis (runningexploratory data analysis, building models, plotting and interpreting results with R/Rstudio orPython/Jupyter notebooks using Pandas and scikit-learn).
Python
SQL
R
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Python
SQL
R
Pandas
Machine Learning
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