Alberto Garcia
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Data scientist | Python Developer | Machine learning scientist
Colombia
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Résumé
Jobs
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Data Science EngineerMercadoLibreMay 2024 - Current (2 years 6 months)Machine Learning: Developed and deployed a fraudulent item listing detection model, achieving a PR AUC of 0.89, and covering all phases from research and development to production deployment.
◦ Research: Implemented a state-of-the-art autoencoder-based oversampling technique (from a recent research paper) for a seller-level fraud detection model aimed at preventing empty boxes from fraudulent sellers. Boosted the PR AUC by 10% through enhanced data augmentation.
◦ Infrastructure: Performed load testing, monitoring, and analysis for both production and pre-production models, and migrated Python infrastructures to newer versions to eliminate vulnerabilities.- Machine Learning EngineerTheMadFoxAug 2023 - Apr 2024 (9 months)◦ Machine Learning: Implement robust and scalable software solutions, utilizing Python, Pandas, and other industry-standard tools. ◦ Artificial Intelligence: Build cutting edge technologies using prompt engineering, LLM (Large Language Models) implementation and OpenCV (Computer Vision) techniques. ◦ Teamwork: Collaborate with cross-functional teams to understand business requirements and translate them into machine learning and automation solutions.
- RAssociate Data ScientistR2 Capital (Y Combinator W21)Feb 2022 - Aug 2022 (7 months)Credit risk management model (NPL reduction): Reduced NPL (non-performing loans) by 14% by developing state-of-the-art forecasting and anomaly detection frameworks (fraud) using research on analytics, machine learning and deep learning models, while exceeding expected OKRs.
◦Forecasting:
•Achieved 100% of merchants (500K) transactional data forecast in around 30 minutes, helping in the NPL reduction process by rapidly developing and integrating the forecasting framework prototype into the Credit Model Pipeline, using DevOps (CI/CD) practices and AI research.
•Led forecasting, data analytics, anomaly (fraud) detection and statistical testing approaches business-wide for supporting and communicating Data Driven decisions bas - Volunteer in translation and mentoring for Data Science bootcampsDPHIMar 2021 - Nov 2022 (1 year 9 months)Mentoring: Provided guidance and recommended problem solving mechanisms for bootcamp attendees dealing with difficult issues.
◦Material translation: Translated bootcamp material for the 1st Spanish Data Science Bootcamp. - Undergraduate Student Researcher verified_user Verified experienceUniversidad Pontificia BolivarianaFeb 2021 - Sep 2021 (8 months)Detecting LSB steganography on digital color images using CNN.
Keywords: Python, Matlab, Deep Learning, Steganography - FVolunteerFEDESOFT - COLOMBIAN FEDERATION OF SOFTWARE INDUSTRY AND RELATED INFORMATION TECHNOLOAug 2020 - Nov 2020 (4 months)Mentor: Assisted youth guiding project design and development by taking steps for success on the National Programming Contest.
- Project auditor / Class tutorUniversidad Pontificia BolivarianaFeb 2020 - Jun 2021 (1 year 5 months)Class labs design, personalized and groupal classes, multi-subject projects
audit: advanced database systems, mobile app development. Single-subject
projects audit: UX design.
Advanced database systems, mobile app development, UX design.
Keywords: SQL, NoSQL, MongoDB, REST API, Architecture, Modelling,
Programming logic. - Competitive programming research seedbed leaderUniversidad Pontificia BolivarianaJan 2018 - Apr 2019 (1 year 4 months)Members preparation for the national competitive programming contest.
- Private tutor / consultantIndependent ConsultantJul 2016 - Current (10 years 4 months)Private tutoring and small/bachelor grade project consultancy for programming
languages (Matlab Python, R, Arduino) and Data Science topics. - Programming/Data Science Consultant and TutorFreelancerJun 2016 - Dec 2021 (5 years 7 months)Student focused approach for project specification and consultancy: Assisted clients in research, completing project deliverables, auditing, collaborating, and providing guidance on data science methodologies and best practices of engineering (MATLAB, Python, R, Arduino, C) End-To-End.
- Scolarship monitor / researcherUniversidad Pontificia BolivarianaJan 2016 - Dec 2019 (4 years)Administrative activities, class subject support, cybersecurity subject labs
desing, institutional activities organization and management.
Education
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- DLangChain: Chat with Your DataDeeplearning.aiOct 2023 - Nov 2023 (2 months)
- IDeep Learning using TensorflowIBM via CourseraAug 2023 - Nov 2023 (4 months)
- MicroMaster in Data Science public Remote experienceUC San DiegoJan 2023 - Current (3 years 10 months)
- Innovative leadersProfuturoJun 2022 - Aug 2022 (3 months)
- ML with Python using Scikit-LearnPlatziApr 2021 - Aug 2021 (5 months)
- UBsC: IT & Systems Engineering (TopUPB ColombiaJan 2016 - Nov 2021 (5 years 11 months)
- Bachelor's degree sistemas e informáticaUniversidad Pontificia Bolivariana
- Computer and Information Systems SecurityUniversidad Pontificia Bolivariana
Awards
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- BBest ICFES SABER PRO score
- BBest ICFES SABER 11 score
- 990% Scolarship
- GGraduation project perfect score