Fractional & interim CTO leadership — reinvented for the AI age
AI doesn’t replace your CTO. It finally makes a great one affordable.
I’m Tom Lang. I give founders and investors CTO-level judgment — architecture, security, hiring, AI strategy — delivered AI-augmented, so you get the decisions that are expensive to get wrong made right, without a $400K full-time hire.
Technical leadership just got repriced
For years your only options were an expensive full-time CTO or a generic fractional one working the pre-AI way. AI changed the economics. A fractional CTO working AI-augmented now covers ground that used to need a full-time hire — the AI does the reading, the scanning, the first-draft grind at a scale no human can match, and a human makes the judgment calls that are expensive to get wrong.
That’s the whole idea: AI doesn’t replace your CTO — it reprices one. It doesn’t replace the judgment, the accountability, or the taste to know which of the AI’s ten options is right for your company at your stage. It just makes that judgment finally affordable to rent.
I’m also the adult in the room on AI itself: I’ll show you where it genuinely accelerates your team — and where it quietly wrecks an engineering org (slop, security holes, false confidence) if no one owns the standards.
AI is the leverage.
Diligence, code review at scale, spec generation — done in hours, not weeks.
The judgment is human.
Accountability, risk calls, and taste don’t come from a model.
You become AI-first.
The destination is a team that makes sound technical and AI decisions and ships, sustainably.
Work I've delivered for leading organizations — in roles at Levels Beyond, Videology, Advertising.com, and through LCG and HotRMC engagements.
Who I work with
I partner with a small number of growth-stage companies at a time:
- Funded startups and scale-ups that need a CTO's judgment before they can justify a CTO's salary.
- PE and VC portfolio companies needing steady technical leadership through a transition, turnaround, or build.
- Established small-to-mid companies modernizing — especially in regulated industries (insurance, healthcare, government) and integration-heavy and industrial operations, where I've spent most of my career.
Three ways to start — pick the rung that fits
AI-First Readiness Scorecard
Free · about 4 minutes · 18 questions
A self-assessment across six dimensions that shows where your technology stands, where AI fits, and what to fix first. It’s step one of becoming an AI-first org.
Take the ScorecardAI-Augmented Technology Diagnostic
Fixed scope, fixed fee
The first-30-days work as a product: a business read, an AI-augmented diagnostic of your technology, team, and roadmap, and a written, prioritized plan you can act on immediately. Something you own — not a slide deck.
See how the Diagnostic worksAI-Augmented Fractional / Interim / Advisory
Ongoing or defined-term
CTO-level judgment, carried week to week: architecture, build-vs-buy, security and compliance, key hires, AI strategy. Fractional for ongoing direction, interim for one hard transition (a raise, an audit, a migration), advisory when the calls are occasional. Priced on value, not hours — AI leverage is the point.
Book a callVC / PE: AI-augmented technical due diligence
One relationship, a repeatable read across your whole portfolio — technical and AI risk sized in writing, at a depth and speed a traditional audit can’t match.
By the numbers
30 years building and leading engineering organizations · teams scaled from a handful to 150+ · multiple acquisitions · SOC 2 Type II across multiple SaaS platforms (Beyond Commissions; 6th Street / CloudQix) · systems handling 3B+ transactions/day · regulated, reliability-critical industries (insurance, healthcare, government, finance, media).
30+ years
Building and leading engineering organizations
2 → 150+
Teams scaled from a handful, through multiple acquisitions
3B+/day
Transactions handled by systems I have built and led
SOC 2 Type II
Delivered across multiple SaaS platforms in regulated industries
Why me
- One accountable executive. You get a single senior person who owns the outcome end to end — strategy, architecture, delivery, and the infrastructure and security underneath.
- A builder who's actually scaled. I've grown engineering organizations from two people to 150+, through multiple acquisitions, and led early cloud migrations at multi-billion-transaction scale — deploying to AWS when the only path to production was a command line.
- Depth where the stakes are highest. SOC 2, insurance, healthcare, and government; plus a career that started on the factory floor with industrial controls, so I understand systems that have to work in the physical world.
- Still hands-on with today's tools. I build with current AI models and agentic tools every day, so the modernization and AI calls I help you make come from someone doing the work — not narrating it from the outside.
Not sure where your technology actually stands?
Take the AI-First Readiness Scorecard — 18 questions, about four minutes. See your readiness band, your six dimension scores, and what to fix first. Free.