JD
About

I build things for a living, which is a polite way of saying I spend most of my time at the intersection of “this should exist” and “I guess I’ll make it.”

Professionally, I’m a Senior Demo Experience Engineer at Klaviyo, where I lead the Demo Experience Architecture team inside the Solutions Engineering org. In practice that means I build the internal tooling and demo infrastructure that helps revenue teams show what the product can actually do. It’s part engineering, part product management, part “why isn’t this working in the demo we have in 20 minutes.”

Outside of that, I’m working on a couple of side projects. Trunkline is an MCP registry and skill-injection layer for distributing AI capabilities across an organization. The core problem it solves: generative coding tools have made it easy to build internal AI tools, and almost impossible to connect them. Dewr is a physical-world exploration platform built around the question “what did you do here?” rather than “was it good?” Both are in active development, which is a generous description for “I work on them at night and think about them in meetings.”

Newton / Holliston area, Massachusetts
What I'm Into
BirdingCooking

I bird. Like, actually bird. Binoculars, early mornings, the whole thing. Mostly along the Charles River and at spots like Rocky Narrows and Castle Island. I realize this makes me sound 65 years old. I don’t care.

I’m a home cook with a bias toward high-protein, umami-forward meals and an irrational confidence in my ability to improvise with whatever’s in the fridge. It works out more often than it should.

I also own way too much Filson and Carhartt, but that’s less of a hobby and more of a problem.

My father runs Dewar Guitars, a luthier shop in Massachusetts. I help with the social media side of things, which is a good reminder that craft and distribution are different skills.

How I Think

I’d rather build the thing that makes ten other things easier than optimize the thing that’s already mostly working. This is either a strength or a character flaw depending on who you ask.

My aesthetic leans early-modern: the period when technology was new enough to be optimistic about but old enough to have developed some visual restraint.

Questions I keep coming back to
·Where does context live?
·What is the user actually trying to do?
·What friction exists that nobody questions anymore?

The most interesting problems right now are at the edge of what AI can actually do in the real world — not in a demo, not in a lab. That’s where I want to spend my time. Ironic, given I literally build demos for a living.

Where I'm Headed

I don’t want to just support software. I want to build it. The goal is more time writing code that ships to users, less time explaining code in a meeting.

More product engineering
More design + code convergence
More ownership over what ships
Better systems, not bigger ones
Outside the Screen

Exploring New England — coastal towns, mountains, and the kind of places that don’t show up on lists. Getting into photography and documenting what I find. Lifting, running, and trying to keep things simple and consistent. Some weeks that works, some weeks it doesn’t.

If you’re working on something interesting, especially where product, design, and systems collide, I’d love to hear about it.