The team you wish existed when you were still inside the machine.
Def0x is a tight unit of specialized operators. We solve the problems large firms put in a Q3 roadmap — in days, not quarters, without the overhead eating the middle.
Sound familiar?
“I have a product. I don't know if what's under the hood will survive what's coming.”
Technical Audit →“I have an idea and a market. I need a team that can build it without burning the budget.”
Product Engineering →“My team is drowning in manual work that should have been automated two years ago.”
Systems Engineering →“I need senior technical judgment embedded in my business — not a vendor I have to manage.”
Fractional CTO & Startup Advisory →Lean Startup, Not Waterfall
We don't disappear into a 6-month build and hope it works. Every engagement follows the build-measure-learn loop — ship something real, get it in front of users, learn what's working, and iterate. Whether it's an audit, a product build, an advisory engagement, or systems work, the principle is the same: decisions based on evidence, not assumptions.
Build
Scope the smallest version that tests your riskiest assumption.
Measure
Ship it, get it in front of real users, and track what actually happens.
Learn
Use real data to decide what to build next — then repeat.
Four ways to work together
Every engagement is scoped to the problem. No packages, no one-size-fits-all.
Technical Audit
A structured assessment of what you actually have — not what you were told you have. Surfaces risk, maps debt, produces a prioritized roadmap you keep regardless of next steps.
Learn more →Product Engineering
Custom software built for the people who use it. Scoped from the audit, built to a defined outcome, priced fixed. No hourly billing, no junior devs hidden behind a senior face.
Learn more →Systems Engineering
Workflow automation, AI integration, and internal tooling for operators who know something is broken but haven't had the right partner to fix it systematically.
Learn more →Fractional CTO & Startup Advisory
One relationship for the full stack of decisions — what to build, why, who for, and how. When the answer is yes, the same relationship owns the technical execution.
Learn more →Founders We've Worked With
Virtual Time Capsule
A platform for creating digital time capsules in autobiography, biography, and memoir formats — preserving stories and memories for future generations.
Visit Live Site“Robinson operates in a completely different league. Before writing a single line of code, he conducted a meticulous full system audit — understanding what we'd built, identifying critical gaps, and establishing a strategic foundation for our next phase. No other developer I've worked with has ever prioritized this. His work ethic is extraordinary, his technical depth is world-class, and what truly distinguishes him is his genuine care for the mission. Working with him doesn't feel transactional; it feels like true partnership. I trust him fully as both a builder and a partner.”
View2Health
A personalized weight loss visualization platform that helps users understand the impact of their choices by showing realistic future weight trajectories.
Visit Live Site“Working with Robinson was a significantly different experience than my past work with other developers. Robinson listened, understood our timeline, and delivered an MVP that completely changed how we deliver our product.”
Boss Controls
An IoT energy management platform that connects behind-the-meter devices to the cloud, providing commercial buildings with real-time energy measurement, predictive load management, and cybersecure device control through its Atmospheres® software.
Visit Live SiteNot sure what you need?
That's what the first call is for. Whether you're starting from scratch, inheriting a codebase, or looking for ongoing technical leadership — the discovery call is where we figure out what makes sense for your situation.
Schedule Your Discovery Call