Hi! I'm Joseph Nikolai Pecha Sanchez, a Machine Learning Engineer and Human Data Manager based in Bogotá. My expertise includes:
- 🤖 LLM training, evaluation, and RLHF workflows.
- 🧠 Generative AI quality assurance and prompt engineering.
- 📊 Data Science and end-to-end ML pipeline validation.
- ☁️ Cloud & scalable AI systems.
- 👥 Operational leadership and workflow coordination.
Currently, I am working on improving data quality for large language models while developing LiveTranslate, an application for real-time transcription and translation.
- Building end-to-end ML & MLOps projects
- Improving LLM evaluation and QA systems
- Exploring scalable cloud architectures
- Developing LiveTranslate (Electron & Spring Boot)
- Contributing to open-source ML & data projects2026 — Present.
- Managing operational workflows for AI trainers and reviewers.
- Coordinating QA pipelines and large-scale annotation projects.
- Supporting LLM training quality and reproducibility.
2023 — 2025.
- Worked on RLHF and LLM training workflows.
- Validated end-to-end ML and data science pipelines.
- Applied advanced prompt engineering techniques.
2023 — 2025.
- Selected for a highly competitive fellowship (<2% acceptance rate).
- Built industry-level ML projects involving ETL pipelines and AWS.
2022 — 2024.
- Led robotics and STEM initiatives using Arduino and IoT.
- Taught Python, analytics, and data visualization.
- 🏅 IBM Machine Learning Professional Certificate.
- 🏅 IBM Data Science Professional Certificate.
- 🏅 Google Data Analytics Certificate.
- 🏅 Huawei HCIA-AI V3.5.
- 🏅 Azure DP-900.
| AI & LLMs | Data Science | MLOps | Cloud | Education |
|---|---|---|---|---|
| RLHF | Statistical Analysis | Docker | AWS | STEM |
| Prompt Engineering | ETL Pipelines | Kubernetes | GCP | Robotics |
| LLM QA | Visualization | CI/CD | Azure | IoT |
"Great AI systems are not built only with models, they are built with reliable data, scalable workflows, and continuous learning."