Eli Rousso
New York City
Over 20 years of design and technology. I’ve founded companies, raised capital, and shipped world-class products used by millions. Now I build software and work with founders to ship taste at speed.
MonochessFull chess in one tiny file.2026 · Games · Free
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Cash AppProduct Design Principal, 2017–2021June 23, 2026 · 9m
Interfaces are about to become readable and streamable.
Soon
The craft is the easy part. It’s everything else that no one prepares you for.
Soon
Time gets more difficult, richer, and longer when you own your decisions.
We start with a short call. If we’re a fit, you’ll have a proposal within 48 hours and a kickoff the following Monday.
Two Weeks
$48k
Ideas are fragile things. I make them durable through prototypes. Two weeks of design as code, end to end: a name, a brand, a working prototype. Demos on Fridays.
Book a sprint6–12 Weeks
From $144k
For serious ideas ready for deployment. I design the product, prototype it in code, and work with your engineers to build and iterate into production.
Start a projectOne Session a Month
$16k per Month + Equity
A monthly working session on highest priority items from product, brand, fundraising, to hiring. Async and ad hoc as needed.
Request a slotAn agency gives you a team, a process, and handoffs. I give you experience across design, product, and engineering, faster than an agency at world-class quality, delivered as code for your engineering team.
Inside a company every idea has history and someone attached to it. I show up with neither. I see the product the way a new user or an investor sees it, and I can say what people inside can’t.
Founders, mostly pre-seed through Series B. Also later-stage startups, venture funds, and public companies that need an outside perspective or want to move even faster.
Founders with a new idea start with a Sprint. If the product is already defined and needs to get built, Zero to One. Funds, studios, and design leaders who want me around over time take Advisory. Not sure? Book the call and I’ll tell you straight.
A Sprint is $48k, fixed, for two weeks: a name, a brand, and a working prototype. Demos on Fridays, and everything is yours at the end.
Yes. Every Sprint includes a name and a brand alongside the working prototype.
Often. The prototype becomes the blueprint, and the person who designed it builds it. Nothing gets lost in a handoff.
The price and the timeline are fixed so you always know the cost and the date. What we aim them at is flexible: a brand, a product, a rethink of something already live.
Yes. Sprints deliver working prototypes in code, and Zero to One engagements ship production code alongside your engineers.
A monthly working session on product, brand, fundraising, and hiring, plus async and ad hoc access as needed. $16k per month plus equity.
Advisory includes equity on top of cash. Sprints and builds are cash engagements.
You do. Names, brands, prototypes, code. Everything is yours at the end of the engagement.
Taste at speed. Working software instead of decks, and the fewest possible steps between an idea and something you can touch.
An intro call, a proposal within 48 hours, and a kickoff the following Monday.
Twenty minutes on your idea: where it is, what it needs, and whether I’m the right person for it. No deck, no discovery questionnaire. You leave knowing what I’d do first.
New York City. Engagements run remotely with demos on Fridays, and if you’re in New York I’m always around to grab a coffee.
Always Mac. I’ve only used Apple computers my entire life.
Mostly the same few songs I’m feeling that month. Usually Aphex Twin’s Xtal on repeat.