ML Engineer & Data Science Manager

Harrison
Jansma

I build generative-AI systems that reach production — real-time LLM tools, RAG, and NLP at scale — and lead the teams that ship them.

6+
Years in applied AI/ML
Real-time
GenAI in production
LLM · RAG
NLP systems at scale
contact-center genai · architecture streaming
source
Live customer call
transport
Streaming transcript → Kafka
Agentic
summarization
GPT · judge
Procedure
RAG
pgvector
Frustration
detection
DistilBERT
delivered mid-conversation
Servicing agent desktop
The shape of three production systems below — one live audio stream, three models, sub-second delivery.
01 — Selected work

Systems in production

Flagship generative-AI systems I've taken from prototype to production at Capital One — starting with a public, clickable rebuild you can try yourself.

02 — What I work on

From research to real-time production

The problems I love solving.

Generative AI

Agentic LLM pipelines, RAG, and prompt/eval systems that augment thousands of users live, with measurable business outcomes.

Real-Time NLP

Sentiment, complaint, and intent detection over streaming call transcripts — with sub-second alerting for de-escalation.

LLM Evaluation

LLM-as-a-judge, offline & online evaluation, and observability for non-deterministic systems in production.

ML Systems at Scale

Low-latency, real-time streaming inference on Kafka, AWS Lambda, DynamoDB, and Snowflake.

Applied ML & Credit

Auto-loan underwriting models decisioning loans at large scale, plus reinforcement-learning credit-policy optimization.

Technical Leadership

Leading ML engineers and data scientists, setting technical objectives with VP- and EVP-level stakeholders.

03 — Skills & tooling

The stack I reach for

Taking models to production — tap a skill to read the case study.

GenAI & LLMs

Case studies
Tools
Claude Code OpenAI RAG pgvector LLM-as-Judge

ML & NLP

Case studies
Tools
PyTorch Hugging Face scikit-learn DistilBERT TensorFlow

Systems & Leadership

Case studies
Tools
Kafka AWS Lambda DynamoDB Snowflake Splunk
Harrison Jansma
04 — About me

I'm a Machine Learning Engineer and Data Science Manager at Capital One, where I lead Generative AI for the contact centers — LLM-powered, agentic tools that augment thousands of servicing agents live, mid-conversation.

Over six years I've taken applied AI from prototype to production: real-time NLP, RAG, low-latency streaming inference, and the credit-risk ML that decisions loans at large scale.

What drives me is making a product measurably better for the people using it. Outside work: science fiction (Dune above all), strategy games, and time with my wife Amy and our dog Huck.