Fractional CTO leadership with hands-on code.
Architecture clarity, engineering leadership, and production delivery — without the full-time executive overhead or equity dilution.
I'm Colin Longworth, a fractional CTO and founder of WooNinja. Former SAP Hybris engineering lead for EMEA. I work with founders in Toronto, Hamilton, and across North America who need senior technical direction, clean architecture, and code that actually ships.
When founders bring me in
Common technical milestones and bottlenecks where senior engineering leadership makes the difference.
Preparing for fundraising or due diligence
Get your architecture, codebase, security posture, and roadmap ready to pass investor scrutiny with confidence.
Learn more →Bridging an engineering leadership gap
Interim and fractional CTO leadership to keep development moving after executive departures or during rapid growth.
Learn more →Unblocking stalled development & tech debt
Untangle architectural bottlenecks, establish reliable shipping cadence, and give your developers clear technical direction.
Learn more →Taming AI-generated code debt
Audit fragile AI-generated codebases, add automated testing, fix architecture flaws, and set up maintainable engineering guardrails.
Learn more →Ways we can work together
From targeted technical audits to ongoing fractional CTO retainers and AI code remediation.
Fractional CTO Retainer
Embedded technical leadership on a flexible monthly basis.
Architecture strategy, code reviews, roadmap planning, and hands-on coding embedded with your engineering team.
Explore the retainer →Technical Audit & Architecture Review
A fixed-scope assessment of your codebase, architecture, and risk.
Two to three weeks. In-depth technical findings and actionable roadmap for fundraising, acquisitions, or scaling.
See audit details →AI Codebase Rescue & Guardrails
Transform fragile AI-generated prototypes into production-ready software.
Targeted remediation, test automation, and engineering workflows so your team can build with AI safely.
Learn about AI rescue →I bring clarity to complex decisions
Architecture, tech stack choices, scaling plans. I help you see the tradeoffs clearly so you can move forward with confidence.
I write code and unblock teams
Not just advice from the sidelines. I jump in, write code, review PRs, and help your team ship.
I keep things moving
Roadmaps, priorities, delivery rhythm. I help you figure out what to build next and how to get it done without burning out.
15+
Years of experience
20+
WordPress plugins published
15K+
SAP Hybris students
14
Products shipped
What I've built
Thinkific Ecosystem
B2B dashboards, SSO integrations, and commerce tools for online course platforms.
WordPress & WooCommerce
Plugins and extensions that connect systems and automate workflows.
Groundhogg Extensions
8 integrations for WordPress marketing automation.
SAP Hybris MasterClass
Online training platform with 15,000+ students. Built after years as a Senior Support Engineer and Co-Lead for SAP Hybris VPR in EMEA.
14 products shipped across Thinkific, WordPress, WooCommerce, Groundhogg, and SAP Hybris. 20+ WordPress plugins. 15,000+ SAP Hybris students.
See all products →Who else I work with
Looking for a technical cofounder?
Get the technical cofounder role filled: strategy, architecture, and hands-on code, without giving up equity or hiring full-time.
Find out how →Got an idea but can't build it?
For inventors and non-technical founders: I take your idea from napkin to working product. You keep the IP, I handle the engineering.
See how it works →Serving Hamilton & the GTA
Based in Hamilton, Ontario, working with founders across the Golden Horseshoe and the Greater Toronto Area.
Fractional CTO in Hamilton
Technical direction, architecture, and hands-on code for Hamilton and Golden Horseshoe startups, in person when it helps.
Hamilton & the Golden Horseshoe →Fractional CTO in Toronto
Toronto-grade technical leadership for GTA startups, without the full-time hire or the equity.
Toronto & the GTA →Let's talk about your product
Tell me what you're building and where you need technical direction. I'll get back to you within 24 hours.