Cristian A. Rojas Cardenas
Melbourne,Australia
Summary
Highly interested in research, design, and programming of software systems. Passionate and very enthusiastic about the development of artificial intelligence technologies.
Overview
6
6
years of professional experience
Work History
Research Assistant
Monash University Melbourne - Australia
08.2022 - Current
- Researched and engineered the maneuver thread in a neuro-symbolic system for drones, funded by the ANSR project of DARPA.
- Researched initiatives focused on automating the identification of political misinformation, particularly in the context of climate change, through advanced large language models. This project was funded by the MDFI Seed Grant Program in AI and data science at Monash University.
Software Developer
Sensilab - Monash University Melbourne - Australia
03.2022 - 07.2022
- Exploration of innovate visual computing algorithms
- Developing solutions in areas such as fractals, multi-agent systems, and image generation.
Research, Development and Innovation Engineer
Millenium Bogotá - Colombia
03.2021 - 02.2022
- Spearheaded end-to-end research and development of an Automatic Speech Recognition model
- Managed the project lifecycle, ensuring successful execution across all stages
- Developed, trained, and deployed the model on AWS for efficient speech transcription
- Ensured scalability for at least 1000 concurrent users per minute, enhancing voice channel automation.
Data Scientist - Machine Learning Engineer
Mercado Libre Bogotá - Colombia
07.2020 - 02.2021
- Designed and trained classification models to detect counterfeit products on an e-commerce platform
- Explored continuous model improvement strategies for enhanced detection with minimal impact on legitimate posts
- Developed additional models to identify brands from images in product listings
- Ensured the models' adaptability to function in three different countries and with two different languages.
Research, Development and Innovation Engineer
Millenium Bogotá - Colombia
08.2018 - 06.2020
- Successfully automated flow channels through the integration of developed models
- Explored new NLP technologies applicable to company processes through research
- Developed intent and named entity recognition models for automated client interactions
- Integrated the models into a platform for designing and delivering dialog flows
- Conducted research and training on language models using transformers for transfer learning
- Improved platform accuracy with reduced data requirements.
Education
Master of Artificial Intelligence -
Monash University
12.2023
Bachelor of Engineering - Computer and Systems Engineer -
National University of Colombia
11.2018
Bachelor of Engineering - Electronic Engineer -
University Francisco José de Caldas
11.2015
Skills
- Python
- Machine Learning / Deep Learning
- AI / ML / NLP
- Pytorch
- Tensorflow
- Sklearn
- Image Processing
- Object Detection
- Automatic Speech Recognition
- Image Classification
- Pandas
- Spark
- C
- Data Analysis
- Data Visualization
- SQL
- Docker
- AWS
Researchpublications
- Diagnosis of a Three-Phase Induction Motor through a Hybrid Hilbert-Huang Transform (Tesis), Rojas Cristian, Hoyos Daniel Bogotá, 2015
- Augmented CARDS: A machine learning approach to identifying triggers of climate change misinformation on Twitter (Paper), Cristian Rojas, Frank Algra-Maschio, Mark Andrejevic, Travis Coan, John Cook, Yuan-Fang Li. 2023
Languages
Spanish
English
References
- Yuan-Fang Li, yuanfang.li@monash.edu
- Julian Gutierrez, julian.gutierrez@monash.edu
Timeline
Research Assistant
Monash University Melbourne - Australia
08.2022 - Current
Software Developer
Sensilab - Monash University Melbourne - Australia
03.2022 - 07.2022
Research, Development and Innovation Engineer
Millenium Bogotá - Colombia
03.2021 - 02.2022
Data Scientist - Machine Learning Engineer
Mercado Libre Bogotá - Colombia
07.2020 - 02.2021
Research, Development and Innovation Engineer
Millenium Bogotá - Colombia
08.2018 - 06.2020
Master of Artificial Intelligence -
Monash University
Bachelor of Engineering - Computer and Systems Engineer -
National University of Colombia
Bachelor of Engineering - Electronic Engineer -
University Francisco José de Caldas
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