Your Company Needs Technical Leadership. Not a $300K Full-Time Hire.

Work with Sean Robb as your Fractional CTO in St. Louis — architecture, hiring, roadmap, starting now.

Built at Dapper Labs, Mastercard, and Flow. Now working with a handful of startups as their part-time CTO.

See If We're a Fit How It Works

I keep my client list small—let's talk.

What You Get

  • A technical roadmap your whole team can execute against. No more flying blind on what to build next.
  • Architecture that holds up as you scale, chosen by someone who has made these calls before.
  • Engineers hired right the first time. I build the process and interview the candidates.
  • A technical partner in your corner when the hard decisions land.

Who It's For

Early-Stage Startups

Pre-seed to Series A companies building their technical foundation before the growth phase.

Non-Technical Founders

Founders with a clear vision who need a trusted technical partner to own the execution.

Scaling Teams

Companies growing from their first engineer to ten — or ten to a hundred — without losing momentum.

Sound like the right fit?

See If We're a Fit

How It Works

1

Discovery Call

We talk through where you're stuck technically. I ask the questions a CTO would ask—and give you honest answers.

2

Deep Dive

I review your codebase, your team, your roadmap. You get a clear picture of what needs to change and in what order.

3

Ongoing Partnership

Weekly syncs, async on Slack, and I'm in the room for the hard decisions. No pitch decks—just work.

Frequently Asked Questions

How much does a fractional CTO cost?
Fractional CTO engagements typically range from $5K–$15K/month depending on time commitment and scope. I'll give you a clear number after our first call—no surprises.
What does a fractional CTO actually do?
A fractional CTO makes the technical decisions your business can't afford to get wrong: architecture choices, tech stack selection, hiring decisions, and roadmap prioritization. I work part-time with your team to provide the strategic technical leadership of a full-time CTO.
Do I need a CTO or a technical advisor?
If you need someone embedded with your team making ongoing decisions—hiring engineers, owning the roadmap, setting technical direction—you need a fractional CTO. If you need occasional second opinions on major decisions, advisory is a better fit. Not sure? Tell me where you're stuck and I'll tell you honestly which one makes sense.
When should a startup hire a fractional CTO?
Most startups need a fractional CTO when they hit their first serious technical crossroads: choosing a tech stack, making their first engineering hire, scaling from prototype to production, or when the non-technical founder realizes they need someone to own the technical side.
What's the difference between a fractional CTO and a consultant?
A consultant comes in, makes recommendations, and leaves. A fractional CTO is accountable for outcomes. I'm embedded with your team, available week to week, and I own the technical direction—not just the advice.
What if it's not the right fit?
Engagements are month-to-month. If it's not working—for either of us—we say so and part ways cleanly. I don't do long lock-ins because they don't benefit anyone. If I take on a client, it's because I believe I can genuinely help. If that changes, I'll tell you.

Ready to Get Technical Leadership?

If your company needs someone to own the technical direction—without the full-time commitment—let's talk.

I work with a small list of clients at a time.

See If We're a Fit