About

A data scientist who’s spent more time in the business review than in the notebook.

Opsis Data is a one-person consultancy — which means the person who builds your model is the same person who explains it to your leadership team.

Most forecasting and automation work fails for reasons that have nothing to do with the model — it dies in the handoff between the data team and the people who have to act on it. That gap is where I work.

Over the past several years that’s meant mentoring a data scientist at Danone, co-building a training course with the forecasting team at Kraft Heinz, and standing up Franklin Sports’ first-ever Amazon predictive modeling capability.

Alongside the consulting work: I’ve built forecasting engines that beat the client’s existing baseline by 10% or more, and production systems that put LLMs to work — research agents, forecast-editing tools, and model evaluation pipelines.

Every engagement runs the same way: work out what decision the model needs to support, build the smallest thing that supports it well, and leave you able to run it without me.

On the record

What clients say, by name

Jack is thoughtful, curious, and genuinely interested in understanding why something works… I value his judgment and enjoy working with him, and I would gladly recommend Jack to any team looking for someone who combines technical depth with practical problem solving.

Jeffrey Tackes

Head of Global Forecasting

Kraft Heinz

Jack is thoughtful, curious, and genuinely interested in understanding why something works… I value his judgment and enjoy working with him, and I would gladly recommend Jack to any team looking for someone who combines technical depth with practical problem solving.

Jeffrey Tackes

Head of Global Forecasting

Kraft Heinz

I had the privilege of working alongside Jack… Jack’s deep understanding of the intricacies of ML models, combined with his ability to translate complex data into actionable insights, is truly remarkable. He’s a natural mentor who elevates those around him, fostering an environment of growth and learning.

Avidar Al-Kurdi

Data Scientist

Danone

I had the privilege of working alongside Jack… Jack’s deep understanding of the intricacies of ML models, combined with his ability to translate complex data into actionable insights, is truly remarkable. He’s a natural mentor who elevates those around him, fostering an environment of growth and learning.

Avidar Al-Kurdi

Data Scientist

Danone

Jack was brought on as a consultant at Franklin Sports to help build our first-ever Amazon predictive modeling capability… He built something we could actually run in production and trust, and he made our team smarter in the process.

Scott Kennedy

VP Data Analytics

Franklin Sports

Jack was brought on as a consultant at Franklin Sports to help build our first-ever Amazon predictive modeling capability… He built something we could actually run in production and trust, and he made our team smarter in the process.

Scott Kennedy

VP Data Analytics

Franklin Sports

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Opsis Data

Forecasting, causal inference, and automation for teams who need proof, not decks.

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Data Scientist · Analytics · Forecasting