AI Japanese Teacher - Niki sensei
I practice Japanese with Niki, an AI sensei running 100% locally on my NVIDIA RTX 5070 Ti GPU.
Featured Projects
S&P500, Crypto & FX Forecasting Application
Pick a symbol and run price forecasts. Check performance metrics and interact with validation and forecast plots.
Tech Stack
Technologies I’ve used to build AI/ML/DL applications (web and on-premises)
Code, Data & Development
Python
R
PostgreSQL
Git
Machine & Deep Learning
PyTorch
Scikit-learn
Hugging Face Transformers
OpenCV
Fish Speech
Faster Whisper
Deployment & APIs
FastAPI
Docker
Linux systemd
NVIDIA SMI
AI Engineering
Ollama
vLLM
ChromaDB
LangChain & LangGraph
Claude
Gemini
Mistral
OpenAI
Experience
Data Scientist + AI Engineer/Developer (full-time)
AECSA BPO - Debt Collection
• Co-developed and deployed two on-premises GenAI web apps: an LLM-powered chatbot and a VLM-powered document analyzer
• Built speech synthesis services (batch and WebSocket) for an LLM-powered call center voice bot
• Designed, co-developed and co-deployed a real-time ML process to optimize dialing ratio for debt collection outbound campaigns
• Developed a FastAPI WebSocket OCR Service for voucher text extraction
• Built speech synthesis services (batch and WebSocket) for an LLM-powered call center voice bot
• Designed, co-developed and co-deployed a real-time ML process to optimize dialing ratio for debt collection outbound campaigns
• Developed a FastAPI WebSocket OCR Service for voucher text extraction
Data Scientist (contractor/consultant)
IMPSERCOM S.A.S - Espumados Group
• Developed price monitoring tools to assess competitors’ discount dynamics
• Applied time-series analysis with boosting methods for SKU demand forecasting
• Prepared sales reports across time periods and channels
• Designed a cloud-based OCR tool for invoice data extraction
• Applied time-series analysis with boosting methods for SKU demand forecasting
• Prepared sales reports across time periods and channels
• Designed a cloud-based OCR tool for invoice data extraction
R&D | QC | QA Scientist (full-time)
Bank of the Republic (Colombia) - BRC
• Applied statistical and mathematical models, including parametric, semi-parametric, and non-parametric survival models, to assess banknote life cycles
• Provided scientific and technical support to Mint and Treasury plants
• Served as ISO 9001:2015 internal auditor, contributing to continuous improvement initiatives
• Provided scientific and technical support to Mint and Treasury plants
• Served as ISO 9001:2015 internal auditor, contributing to continuous improvement initiatives
Education
Master's in Applied Statistics and Data Science
Universidad El Bosque (UEB) - Bogotá, Colombia
For my master’s thesis, I developed a Homeland Security AI Q&A application. It transforms natural language questions about Colombian crime statistics into SQLite queries, displaying the results as tables or Plotly charts. The application uses GPT-4-based models for inference, LangChain and LangGraph for orchestration, and Streamlit for the web interface
📄 Read the full thesis article
📄 Read the full thesis article
Master of Science (MSc) - Biochemistry
Universidad Nacional de Colombia (UNAL) - Bogotá, Colombia
I worked in the field of molecular parasitology from 2010 to 2016. I had the privilege of working with bioinformatics, recombinant DNA technology, recombinant protein expression and purification, immunochemistry, enzymology, and HPLC
📄 Publications: Biochimie Open • Mem Inst Oswaldo Cruz • Rev Colomb Quim
📄 Publications: Biochimie Open • Mem Inst Oswaldo Cruz • Rev Colomb Quim
Bachelor of Science (BSc) - Chemistry
Universidad Nacional de Colombia (UNAL) - Bogotá, Colombia
Chemistry, the central science. Paraphrasing what Nobel Prize laureate Richard R. Ernst said during his visit to my university, “a thorough chemist should have worked in research, teaching, and industry.” I followed his advice, and I’m proud to have had the opportunity to work and succeed in all three areas between 2013 and 2023
Recent Blog Posts
llmfit: What LLMs run on my PC?
Trying llmfit to see what AI models can run on my PC.
My PC Build
A brief description of my PC build, comprising parts between 2020 and 2026.
Get In Touch
Connect
Whether you're looking to hire, collaborate, or just want to say hi, feel free to reach out!
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