Alejandro Salazar Lobos

Key Skills

Software

CVAT

Data Annotation Tech

Remotasks

Scale AI

Other

Top Subject Matter

Data Analysis for Financial Forecasting

LLM Evaluation in Data Analysis for Signal Processing

Software Development and AI Training

Top Data Types

Computer Code Programming

Document

Image

Top Task Types

Computer Programming Coding

Data Collection

Mapping

Freelancer Overview

Specialist in data analysis, software development for data management, and image & audio annotation. 2+ years of experience. My clients have included Google, CERN, SEFISA, and the University of Alberta.

Labeling Experience

AI Writing Generalist

Scale AITextText GenerationFine Tuning

- Text Editor - Supervised fine tuning in AI text generation for a variety of topics (literature, history, scientific, etc.)

- Text Editor - Supervised fine tuning in AI text generation for a variety of topics (literature, history, scientific, etc.)

2024

Data Analyst

Data Annotation TechComputer Code ProgrammingDiagnosisMapping

- Machine Learning/AI Engineering (prompt engineering, GAN augmentation for class imbalance and overfitting, k-fold cross-validation). - Data cleaning, manipulation, and visualization. - Relational databases. - Signal processing (Fast Fourier Transform for noise reduction and signal reconstruction). - Forecasting for Finance and Marketing (ARIMA, Holt-Winters Exponential Smoothing, Volatility Analysis, Credit Derivative Pricing Analysis). - Investment analysis: Bonds Math.

- Machine Learning/AI Engineering (prompt engineering, GAN augmentation for class imbalance and overfitting, k-fold cross-validation). - Data cleaning, manipulation, and visualization. - Relational databases. - Signal processing (Fast Fourier Transform for noise reduction and signal reconstruction). - Forecasting for Finance and Marketing (ARIMA, Holt-Winters Exponential Smoothing, Volatility Analysis, Credit Derivative Pricing Analysis). - Investment analysis: Bonds Math.

2023

Data Annotator (Image)

Data Annotation TechImagePolygonPoint Key Point

- Evaluation and guidance of AI model's ability to detect aspects of images

- Evaluation and guidance of AI model's ability to detect aspects of images

2023

Data Annotator (Structured Data Generation)

Data Annotation TechDocumentData Collection

- Create data tables in Google Sheets that accommodate pre-written queries

- Create data tables in Google Sheets that accommodate pre-written queries

2023

Data Analyst / Software Developer

OtherComputer Code ProgrammingPolygonRelationship

- Developed machine learning data analysis software to visualize and evaluate data in scientific form, for CERN

- Developed machine learning data analysis software to visualize and evaluate data in scientific form, for CERN

2020 - 2023

Education

Work History