TIFIN
Jun 2026 – Aug 2026
AI Engineering Intern · Boulder, CO
- Built the response-side compliance classifier for an advisor-facing chat agent — a fine-tuned ModernBERT that scores every generated response against 26 regulatory categories in roughly 37 ms, trained on a 10,000-record corpus of synthetic scenarios and PII-anonymized production traces.
- Built the question-side screen as a pair of models: a LoRA fine-tuned general-purpose guardrail adapted to domain risks its broader taxonomy could not isolate, and a capability classifier reaching 0.97 micro-F1 at 96.7% precision on held-out production traffic.
- Owned the evaluation and serving path end to end — prevalence-adjusted test sets, threshold calibration, real-versus-synthetic slices, and GPU deployment behind authenticated inference endpoints.
PyTorch · Hugging Face · PEFT/LoRA · Modal · vLLM · Logfire