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Fractional CTO
A CTO for the months before you hire one. Technology strategy, architecture reviews, hiring, vendor calls, security, and technical due diligence. Billed monthly, month to month.
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Fractional CTO · Software Studio · Advisory
Senior technical leadership. Built by the person you actually talk to.
Product Advantage LLC provides fractional CTO services, SaaS MVP development, AI-built app rescue, and technology advisory for founders and operators who aren't ready to hire a full-time CTO or an agency.
Role
Fractional CTO & founder
Operator-engineer, not a consultancy.
Also
Family office investor
Direct tech investments and VC fund LP.
Code your next engineer can still read in two years.
Services
How I Help Founders & Operators
I run a one-person technology practice. I build MVPs, rescue AI-generated codebases, embed with product teams, and provide fractional CTO and advisory services to startups and small businesses. You work with me directly, start to finish.
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SaaS MVP Development
Got an idea? I'll build your first version and get it in front of users. Most MVPs launch in 4–6 weeks at a fixed price, with auth, payments, and integrations included.
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AI-Built App Rescue
Your Lovable, Bolt, v0, or Cursor prototype works in the demo and breaks under real users. I stabilize it: real auth, error handling, tests, and code a team can maintain.
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Technology & AI Advisory
The pilot ran and nothing changed. I help you pick the few AI and technology investments worth making, write the build-or-buy answer, and then help you ship them.
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Forward Deployed Engineer
AI company that needs shipping, not slideware? Embed a senior engineer on agents, integrations, evals, and the production path. One person on your critical path.
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Engineering Team Building
Fractional help is a bridge. I build the team that outlasts it: roles, hiring, onboarding, and process, handed off to your own lead. Or a managed team I lead for you long term.
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Law firm? Legal technology and firm operations live at BetterDocket, a DBA of Product Advantage LLC.
About
Built by an operator. Trusted by founders.
I'm Justin VanWinkle. I've spent my career building and running software products, most recently founding BetterDocket, the matter-management platform for small law firms. I started Product Advantage because founders kept asking for the same three things: speed, honesty, and code their next engineer can actually read.
Direct access to the engineer building your product. No account manager. No junior-dev rotation. If I'm not the right fit, I'll tell you, and I'll usually tell you who is.
JV
Justin VanWinkleFounder, Product Advantage LLC · Founder, BetterDocket
Products I've Shipped
Not just advice. Products in production.
The best way to judge a fractional CTO is to look at what they've built with their own name on it. These are live, with paying customers, and I run them day to day.
Legal tech · SaaS
BetterDocket
Matter management for small law firms. Tasks, documents, deadlines, messages, time, and invoices connected around each case, plus a client portal and a built-in copilot that proposes editable actions for approval.
betterdocket.com ↗Desktop app · Local-first AI
Spectator.
A free, local meeting-notes app for Mac and Windows. Records, transcribes, and summarizes meetings on your machine, with no account required. Built to show what careful, privacy-first AI product work looks like.
Learn about Spectator ↗
Investing
I also sit on the other side of the table.
I lead our family investment office, which invests directly in technology startups and in venture funds such as DeepWork Capital Fund 3. That means the technical due diligence I do for clients is the same diligence I do before writing a check.
Direct
Early-stage technology companies
Software, AI, vertical SaaS, and tools for professionals. Founder-first, technically rigorous.
Funds
Limited partner in venture funds
Including DeepWork Capital Fund 3. Access to the broader early-stage ecosystem and co-investment flow.
Contact
Let's Talk About Your Project
Tell me what you're building, what's broken, or what decision you're stuck on. You'll get a reply within one business day, honest feedback, and no follow-up sequence if we're not a fit.
- ⏱Reply within 24 hoursFrom me, not a sales team.
- ◎Free first call30 minutes. You leave with a recommendation either way.
- ✓Fixed prices, no hourly metersRetainers and builds are scoped up front.