![Dathan Guiley](/assets/dathan-guiley-t7NThNCs.jpg)

Dathan Guiley · 30 yrs production · CTO ×3 · Claude Code daily since launch

# From idea to working software.  
Experienced lean delivery — from micro-SaaS to enterprise.

The CTO-who-also-codes you'd hire full-time if you could — applying a mature SaaS foundation and thirty years of judgment from the start. You focus on customers; we focus on what survives.

[Book a discovery call →](/start?utm_campaign=founder-sprint)

The smart build outperforms the average build on cost and success — every time.

Four doors. Same senior behind each. Pick the one that matches where you are.

[Accelerate →](#accelerate) [Build it →](#build) [Troubleshoot →](#troubleshoot) [Analyze it →](#analysis)

Door 1 · Accelerate

## Add deep experience to your team.

Fractional engagements give projects of any size or budget access to experience they wouldn't normally have. Drops into your weekly cadence — code reviews, hiring, hard calls. Your team keeps shipping; you stop second-guessing.

[Get the senior in the room →](/start?utm_campaign=accelerate)

[Fractional CTO →](/lp/fractional-cto)

Door 2 · Build

## Build AI-native, on foundations that scale.

Over a decade building SaaS for startups and enterprise. We take on projects of any size, and every build starts on foundations we've shipped before — so AI-generated code lands predictably instead of piling up integrations that only look correct.

[Talk now →](/start?utm_campaign=founder-sprint)

[Founder Sprint →](/lp/founder-sprint) [Fast-MVP scope →](/lp/fast-mvp)

Door 3 · Troubleshoot

## Slow projects, team friction, performance, and scaling issues.

We diagnose what's actually wrong — performance bottlenecks, runaway run-costs, team velocity, integration failures, projects that won't ship — before any code gets touched. No rewrite unless the diagnosis demands it.

[Get the diagnosis →](/start?utm_campaign=troubleshoot)

[Architecture review →](/lp/rescue) [AI-gen code check →](/lp/vibe-code-check) [Code audit →](/lp/code-audit)

Door 4 · Analysis

## Diligence, analysis, and roasts.

Get a clear picture before investment, before development, or at any point in the product lifecycle. Technical diligence for PE-backed deals. Architecture diagnosis on live systems. Decision planning for hard bets.

[Scope the analysis →](/start?utm_campaign=analysis)

[PE-backed technical diligence →](/pe-diligence)

What we've shipped

## Recent work.

[
Build · Scale

### Revyautos

Honda-backed automotive marketplace, zero to scaled production.

- 10,000 listings shipped
- Peak team: 12 engineers, 20 total
- CTO end-to-end · Q1 2024 → Q4 2025

Read the case →
](/work/revyautos)[

Build · Speed · Founder judgment

### AgentSite

"AEO is the new SEO." Built from a gap across client work.

- Idea → first paying customer in 4 weeks
- Multi-tenant SaaS in production
- Dogfooded on wilde.agency

Read the case →
](/work/agentsite)[

Accelerate · Fractional CTO

### Weaverley

"He doesn't hand me theory, he hands me the next correct decision." — David, Weaverley

- Fractional CTO at a pre-launch product
- PR + mainline workflow shift in week one
- Stalled 2.5-week fix → shipped same week

Read the case →
](/work/weaverley)

[See all work →](/work)

Production software shipped at

Amazon·Netflix·Yahoo·Overstock·Northrop Grumman·Porsche Digital·Taulia·RevyAutos

Why us, specifically

### Architect at the top

30 years deciding what survives production. Strategy, PMF, technology bets, and the "should we even build this" call — made by the person who's done it forty times, not delegated to a junior.

### Hands-on at the frontier

Claude Code daily since it launched. Agentic patterns in production, not on slides. The person making the architecture call is also writing the code — so the pattern survives contact with reality.

### A team behind the architect

Engineers, designers, CMO. The diagnosis ships — it doesn't just get written. The bench scales with the engagement, so the fix lands before the cost crystallizes.

How we deliver this from the start

## 126 production-proven patterns — applied the moment we start.

Auth. Billing. Background jobs. Observability. CI/CD. Agentic patterns. We’ve compounded thirty years of production experience into a foundation we apply from the start — every pattern a landmine you don’t have to step on. Your team learns from real customers, not from a blank repo. Public frameworks vibe-coding builds off of are in a completely different class.

## Do you recognize any of these problems?

01Outcome

“I'll ship something nobody actually wants.”

02Delivery

“They'll start strong and the wheels will come off.”

03Time

“I won't see anything real for months.”

04Effort

“I'll become the PM instead of the founder.”

Pricing posture

$2K to $200K. Fixed scope. No hourly. Whichever shape fits your situation, the architecture review is free.

The technology industry is changing. AI makes development fast — but it can generate mountains of slop in a day. Pricing has to change too. We price against outcomes and budget, not hours. The first step is a discovery call: you leave with a few options for how far we can take you at the budget you have.

## Zero risk to start.

Every engagement starts with diagnosis, not commitment.

✓ Free 30‑minute architecture review — you leave with a roadmap whether we work together or not  
✓ First‑milestone satisfaction gate — full refund if you're not confident  
✓ 90‑day post‑launch quality guarantee  
✓ Complete codebase handoff — no vendor lock‑in  
✓ Advisory fee credited 100% if you upgrade to full engagement

[Book your free architecture review →](/start)

[Ongoing technical partnership →](/retainer) [What would this cost? →](/lp/cost-calculator) [Free AI Readiness Scorecard →](/scorecard) [Just want to talk? →](/contact)

## Common questions.

What does the free architecture review include?

Already in production and it's breaking. What's the path?

Do you bring a team, or is it just you?

How is this different from another senior consultant?

What does pricing look like?

## Not sure which door? Start with the free review.

30 minutes. Free. You leave with a roadmap whether we work together or not.

[Book a free architecture review](/start)

Got a question?