// MBA · AI · FullStack · +10 yrs
Francisco Llantada
Robust systems that adapt when everything else changes.
Senior full-stack engineer specialized in building architectures that separate what changes from what stays. Clean domain boundaries, abstract integrations, and codebases that scale with your product.
What I deliver
Consulting
I analyze how the development team works, the business needs and its constraints. I identify where AI agents can accelerate delivery and help with the implementation. Better productivity, higher quality, faster delivery.
AI-powered systems
Multi-agent orchestration, workflow automation, intelligent assistants. Turnkey: real code, fully documented and ready to integrate. No dependencies on no-code platforms that don't scale.
Architecture & infrastructure
You have something that works but needs to scale. I design the architecture, define the cloud infrastructure (AWS, GCP, Azure) and prepare the system to grow: more users, more team, more features — without rewriting everything.
Web interfaces & mobile apps
Performant interfaces, real-time dashboards, mobile applications for both Android and iOS. 520+ production PRs across enterprise projects.
Third-party integrations
Don't reinvent the wheel. If someone already solves it, the key is integrating without coupling. I create the interfaces, implement the service in your project, verify versions, compatibility and known issues so you can leverage proven work without compromising your system.
Training
Tailored training on architecture, applied AI, best practices and development tools. Designed around current challenges or where the team wants to go. I transfer knowledge so the team doesn't depend on third parties.
Engineering principles
Keep it simple
If a solution is hard to explain, it's probably wrong. Simple systems are easier to debug, scale, and hand over.
Single responsibility
Each piece of the system does one thing well. When something needs to change, you know exactly where to go — and nothing else breaks.
Clear boundaries
Each area of the business owns its own code and rules. Orders, payments, and shipping each evolve at their own pace — independently, without breaking each other.
Organized by purpose
Code is grouped by the problem it solves, not by its technical role. Everything a feature needs lives together — so changes are local and deployments are safe.
Independence over reuse
Reusing code sounds efficient, but it creates hidden connections. I prefer independent pieces that can evolve separately — even if they look similar at first.
Self-documented code
Every public function has JSDoc. Every decision has a rationale. The codebase explains itself — so the next developer doesn't have to guess.
The result: products built for quality, fully documented, and ready to evolve.
Let's work together
Backend architecture, AI integration, full-stack development.