Product & AI leader · New York

Hi, I’m Jimmy Marsanico.

See my work Say hello

Selected experience

  • Bloomberg
  • Imgur
  • Prescient AI
  • Dewey Labs
Jimmy Marsanico

What I do

Where I do my best work.

01

Building with AI

Hands-on AI engineering — the evaluation frameworks, guardrails, and tooling that make AI trustworthy enough to put in front of real people, plus the judgment for where it genuinely helps.

02

Product leadership

Evidence-based product, zero to shipped — discovery, strategy, and execution across every stage of company maturity, from the earliest founding teams to venture-backed startups to global enterprises.

03

Connecting teams

The translation layer between engineering, data, product, and go-to-market — aligning everyone on one vision and turning it into tactical plans each team can run.

About

A bit about me.

I’m a product and AI professional, born and raised in Queens and a New Yorker ever since — now at home with my wife, our son, and our dog.

I’ve spent my career on engineering, data science, and product teams, and pitched in for sales, marketing, and even HR along the way. My day-to-day is usually the deeply technical work, but what I enjoy most is a good puzzle — not the jigsaw kind, but figuring out what pieces a team has, what’s missing, and how they fit together toward a shared goal. So the most useful thing I do usually isn’t the most technical: it’s making complex work something everyone in the room can act on.

Lately, I’m doing that at the forefront of AI: I build answer engines for expert creators, with the guardrails that keep their answers trustworthy enough for high-stakes decisions. I’m hands-on with the latest models for coding, business workflows, and go-to-market — and I’ve even wired AI into my own life so I can, ironically, spend less time at the computer and more with my family.

Beyond the day job

Advisory boards
Premarket.nyc & Kreativio
Dean’s Executive Advisory Board
NYIT College of Engineering & Computing Sciences
Football coach
St. Francis Prep · Fresh Meadows, NY

What I believe

Technology should meaningfully enhance the human experience.
Embrace discomfort
It’s where the growth actually lives.
Give more than you take
In every room, every project.
Treat everyone with respect
Engineers, clients, end users alike.

Selected work

Problems I’ve helped solve.

Across AI, product, and data — for startups and global platforms alike. Open any one for the details.

AI Engineering Member of Staff

Dewey Labs

Challenge

Connect people facing high-stakes life decisions with genuine expert knowledge — and free the experts to focus on what they do best.

What I do

As the first full time hire to join the founders, I wear many hats. Most of my time is AI software engineering — I built much of the evaluation framework that catches hallucinations and watches content quality, plus the internal admin tools — but on a small team I also support product discovery, marketing & sales, and support my founders and teammates however I can to help steer the company.

Visit Dewey Labs

Impact

  • Built the evaluation framework that monitors hallucinations and keeps AI answers trustworthy
  • Free experts from busywork — like wading through endless DMs — so they can do what they do best
  • Help a young, fast-moving company find its product and its market as a founding team member
Executive Product Leadership VP of Product & Data Science

Prescient AI

Challenge

Rebuild trust between marketing spend and measurement after pixels and cookies stopped working.

What I did

Joined as one of the first three employees and VP of Product to build the company from the ground up. I communicated between a brilliant data science team and the brand marketers we served — running discovery interviews, joining sales calls, and coding alongside engineering — to ship marketing-mix models accurate enough to actually trust.

Visit Prescient AI

Impact

  • Drove real wins for DTC brands — Saatva grew TV revenue 22%, HexClad lifted ROAS 20%, BrüMate grew Amazon sales 85%
  • Built a state-of-the-art attribution and optimization system that allows brands to forecast performance and execute with confidence
  • Introduced 'halo effects' — measuring how ad spend lifts every storefront at once (Shopify, Amazon, TikTok Shop, retail), a first-of-its-kind

In the press

“We consistently heard from customers and prospects that solving the Amazon disconnect would be a game changer for them, so we prioritized developing a new model to make that happen.”
PR Newswire
Data & Product Leadership Head of Data

Imgur

Challenge

Create delightful and engaging experiences to millions of users while growing ad revenue.

What I did

Sat between product and revenue, using behavioral data to keep the experience great while helping monetize it. Fed the community team data for moments like the Imgur Secret Santa, and armed sales with the session and audience insights they needed to design bespoke, high-value ad campaigns.

Impact

  • Gave sales the data to close seven-figure ($1M) custom brand deals
  • Found a high-traffic page with no ads — the free-user upload screen — and launched my own ad unit there, adding tens of thousands in incremental weekly revenue within weeks
  • Kept user experience and revenue in balance across product, community, and sales
Product Leadership Head of Product, Enterprise Access Point

Bloomberg LP

Challenge

Give financial institutions one standard way to discover, license, and deliver Bloomberg's enterprise data.

What I did

Led cross-functional teams to ship DATA<GO> (formerly the Bloomberg Enterprise Access Point) — designing the RESTful API and the interactive catalog that let clients browse, test, and self-serve enterprise data.

Visit Bloomberg LP

Impact

  • Built the self-serve front door to Bloomberg Data License — a catalog now spanning 8,000+ datasets and 70M+ instruments
  • Helped Bloomberg ship the platform that delivers 100B+ data points a day via API, SFTP, and cloud
  • Gave enterprise clients a consistent, firm-wide standard for accessing data
Data Strategy Data Science Team Lead

The Muse

Challenge

Stand up a data practice that could keep clients engaged and renewing on a career-development platform.

What I did

Built the data-collection infrastructure, grew the business-intelligence team from the ground up, and gave customer success early-warning signals for accounts at risk.

Impact

  • 11% improvement in client retention with machine-learning churn signals
  • Gave the support team early indicators of which clients needed attention — and what to address
  • Scaled product data ingestion 30,000x to power insights and personalization
Metrics Planning & Business Intelligence Data Science Consultant

Pearson

Challenge

Give every educator — district to classroom — the same clear view of how students are doing.

What I did

Built a nationwide standard business-intelligence interface on Tableau that aggregated student performance from district to school to teacher to individual student.

via Fino Consulting

Impact

  • Put district, school, teacher, and student performance in one shared view
  • Leveled the playing field — a common language for Pearson schools to compare notes and lift their teaching
NLP Classification Data Scientist

Unique IO

Challenge

Connect investment professionals with relevant global conferences from an extensive database.

What I did

Built a matching engine with unsupervised learning and natural language processing to surface the right events from a large, messy conference database.

Impact

  • Empowered investors with ML-based, personalized event discovery
  • Reached 87% recall on NLP-based conference classification
Technology Consulting Technology Consultant

Flow Control, Inc.

Challenge

Modernize lead generation for a valve and actuator manufacturer.

What I did

Rebranded and rebuilt the website on a modern stack, set up an SEO strategy and web analytics, and trained the sales engineers to run it themselves.

Impact

  • 182.5% lift in organic search traffic from the new SEO foundation (221.9% overall lift)
  • Turned the site into a steady inbound lead channel for the sales team
“The new sleek design and added capabilities (i.e. web analytics) are excellent. On top of that, we have seen immediate results; our organic search hits are up and inbound site leads have followed.” — Brett Thomas, Flow Control Inc.

Contact

Let’s make something that matters.

Got a problem worth solving, a team to build, or just want to talk shop? I’d genuinely love to hear from you.

LinkedIn
New York, NY