Senior technical leadership for teams that need it part-time, from someone who still writes the code.

Roughly one day a week, ongoing. Architecture review, technical direction, and a second pair of experienced eyes on decisions that are expensive to reverse. If you have engineers but nobody senior enough to tell them they're about to build the wrong thing, that's the gap this fills.

What I actually do in the role

What I'm not

I'd rather set this straight before you email me than after.

I'm not a full CTO, part-time. A real CTO owns technical outcomes over time, sits on the leadership team, carries a headcount budget, and is accountable to a board. That's a job, not an engagement, and doing it properly takes more presence than one day a week. If you need someone in leadership meetings owning the technology function, hire a CTO.

What this actually is: embedded senior engineering, plus the architectural judgment that usually comes with the title. That distinction matters because it changes what you should expect. I'll tell you your architecture is wrong and why. I won't be in your Monday leadership meeting, and I won't own your hiring plan.

I'm not an agency. There's no team behind me. You get one senior engineer, which is the point. It also means I'm not the answer if you need five people shipping in six weeks.

I'm not a prompt-engineering shop. I know how to do it, and I'm good at it but it's not my focus. Most of what I build isn't the model. If your problem is genuinely "make this prompt better," that's a smaller engagement than this one and I'll say so.

When this is the right shape

When it isn't

What it costs

From $3,200 per month, roughly one day a week, four days a month, at base rate. More if the work sits mostly in the AI or advisory tiers; the pricing page has the full rate structure.

Unused days don't roll over. What you're paying for is reserved availability and continuity: someone who already knows your system when the decision comes up, rather than someone who has to be briefed each time.

Arrangements are monthly and either of us can end them. I'd rather you stay because it's working.

How it starts

A call, first, at no charge. Tell me what your team is building and where the gaps are. If a fractional arrangement isn't the right shape, whether what you actually need is a project delivered, a full-time hire, or nothing at all, I'll tell you that.

jeb.seibel@yahoo.com