I lost almost everything to code I didn’t control — then taught myself to build what endures.
I'm David Billiot, founder of RESILIENCE. The practice exists because of the worst night I ever had in technology — and the choice I made the next morning, when walking away would have been the easy thing to do.
That choice — to rebuild instead of break — became a standard, and then a company. It’s the name on the door: RESILIENCE.

David BilliotFounder & Senior Engineer
Miami & Dubai · Founded 2021
The exchange I trusted with everything
In the early days of blockchain — before the audits, the insurance, and the hard-won security culture the space has since built — nearly everything I owned lived on a decentralized exchange. I didn't build it and I didn't run it. I trusted it, the way everyone trusted everything then: ambitious code on the frontier, far less protected than any of us understood at the time.
Then it was compromised. In a single night the exchange was drained, and everything I had trusted to it went with it — gone the way only a blockchain loses something: final the instant it happened, with no block to appeal to and no way to undo what had already settled. What vanished ran into the millions. There was no safety net beneath it, and the wound was mine alone to carry.
“Everything I had trusted to it came apart in a single night. The only thing still in my control was what I did next.”
I refused to crumble
Most people, in that moment, fold. I understood the pull of it — the temptation to walk away and let the loss become the whole story. I decided it wouldn't.
So I did something that, at the time, made no sense to anyone including me: I pushed myself straight into the one subject that had always interested me least. Blockchain technology and development — the deep, unglamorous machinery underneath what I'd lost. If I was going to be hurt by something I didn't fully understand, I was going to understand all of it.
The thing I least expected to love
Studying blockchain pulled me, almost by accident, into computer programming. And the strangest thing happened. The discipline I had spent years avoiding — the actual writing of code — turned out to be the most fascinating thing I had ever encountered.
I became captivated by a simple, almost staggering idea: that you can take any thought in your head and bring it to life. A problem, a tool, an entire system — typed into existence and then made real. Once I saw that, I couldn't stop. The wound had handed me a craft.
Where the craft led next
That fascination didn't stay still. It carried me from blockchain and software into artificial intelligence — and AI is now woven into every single aspect of how I live and work.
It changed what I believed was possible to build alone. The same instinct that made me want to understand the breach made me want to understand agents: systems that reason, act, and carry real work without being watched every second. I taught myself how to build them, and then I built my own.
Self-taught, end to end
Everything I do today, I taught myself from scratch: software and website and app development; blockchain technology, including smart-contract and dApp development; and artificial intelligence — from deploying it across a business to building my own personal agents and autonomous on-chain agents.
That is what RESILIENCE is. The practice builds websites, software, applications, agents, and the on-chain systems I once lost everything inside of — engineered from a blank repository, fundamentals first, security above all. Blockchain came back deliberately: it is the discipline I paid the steepest tuition for, which is exactly why I'm the right person to build and secure it for someone else. More disciplines are joining in the months ahead, but the standard never changes — build it properly, build it to endure, and stand behind it personally.
What I build today.
Four pillars, one senior bench — held to the standard the story is named for.
Software Development
Custom software, internal tools, APIs, and business systems — built from a blank repository on the current frontier of the toolchain.
Websites & Apps
Websites that convert, mobile and desktop apps that don't feel like a template, the managed-care retainer that keeps everything running.
Agentic AI & Automation
Autonomous agents, custom MCP servers, and automated systems — the skills, hooks, and integrations that plug them into the tools you already run to increase productivity and quietly reduce the operating cost of the business.
Blockchain & Smart Contracts
Smart-contract development, DeFi integration, and smart-contract audits — plus on-chain forensics: fund tracing and evidence packets for individuals, attorneys, and law enforcement. Security-first, engineering and investigation only. No tokens, no managed money, no return claims, never custody of funds.
- Ship production code from day one; no throwaway prototypes.
- Every engagement runs through a senior engineer — no funnels, no gatekeepers.
- Security and privacy are design constraints, not post-launch tasks.
- Agents are scoped to the operation in front of them, not bolted on top of it.
- If the system raises the cost of the business to run, it is not done.
A process built for real engineering.
Every engagement is structured to ship production software on a predictable timeline, with direct access to the people building it.
- Day 1
Discovery call
A 20-minute working session with a senior engineer, not a sales rep. We map the problem, unknowns, and what good looks like.
- Week 1
Scope & architecture
A written plan: system architecture, milestones, fixed or weekly pricing, and the risks we will actively manage.
- Weeks 2 to N
Build in the open
Weekly shipping cadence, a private portal with live progress, and direct access to the team writing the code.
- Launch onward
Ship, measure, iterate
Production hardening, observability, and a clear handoff. Retainer available for ongoing work and on-call support.

I built RESILIENCE on the other side of losing nearly everything I had to code I didn't control — and refusing to let that be the end of the story. I taught myself, from scratch, the very craft I'd once avoided, and it became the thing I love most. That's the whole company. It's why a senior engineer reads your note, writes your proposal, ships your code, and answers your email personally.
Every system we build is engineered from a blank repository, secured from the first line, and made to outlast the engagement. If it doesn't hold — and if it doesn't earn your trust — it isn't finished. And you'll hear that from me directly, not from a queue.
David Billiot
Founder & Senior Engineer
“The loss was never the point. What you decide to learn from the worst day is — and the thing you least want to face is often the thing that sets you free.”
Most people would have crumbled. I chose to stay resilient, turned a wound into a craft, and built it into something that lasts. Today, that is called RESILIENCE.
— David Billiot, Founder