Collin Aldaibis

The Hague, Netherlands

Led the engineering and LLM work across forensic AI R&D projects with the police, the Hansken team, and the biological and chemical data labs.

• Fine-tuned Whisper for Dutch forensic audio (ethnolects, dialects, and low-quality recordings), cutting word error rate from ~40% to ~15% on private datasets; initiated and supervised a master’s thesis on adapting its vocabulary using text-only data.
• Pre-trained a Dutch ModernBERT from scratch on Dutch FineWeb / FineWeb-Edu to close a gap in open-source Dutch encoder models with a modern BERT/RoBERTa successor.
• Built and evaluated the Hansken Copilot RAG application, helping investigators search cases of millions of digital traces, fully on-prem with local embedding models and LLMs, evaluated with RAGAS on hand-curated forensic datasets.
• Benchmarked LLMs with SURF & TNO, contributed the first Dutch bias benchmark to EuroEval, and built a reproducible fine-tuning and evaluation pipeline for forensic text classification.
• Established local LLM infrastructure for running and fine-tuning models on sensitive data (llama.cpp, Unsloth, Hugging Face, PyTorch), including sandboxed local coding agents and optimised training runs on NVIDIA H200s.
• Founded and chaired the Python Dev Club and LLM Club to raise engineering and LLM literacy across the guild (modern tooling like Ruff and uv, plus safe local agents), and advised NFI leadership on rolling out LLM technology organisation-wide.

Python · PyTorch · HF datasets, TRL, transformers · Unsloth · llama.cpp · Streamlit

Utrecht, Netherlands

Developed the company's core AI diagnostics platform, connecting ECG models to clinician- and patient-facing workflows.

• Built the platform end to end, from Python/PyTorch model serving and C# services to the React interface and Azure infrastructure managed with Docker and Terraform.
• Supervised several international AI master’s students on deep learning for ECG research theses.

C# · Python · PyTorch Lightning · React (TypeScript) · Docker · Bazel · Terraform · Azure · MLOps