
LionDev Portfolio
This portfolio — Performance 100, Accessibility 100, Best Practices 100, SEO 100. Built with Nuxt 4, Tailwind, and nuxt-security. A+ Headers and strict CSP.
Architecting elite digital experiences. Offensive security, extreme performance, and interfaces that don't just work, but impress.
Specialist in forging resilient digital ecosystems. Where every line of code is optimized for speed and shielded against threats.
const developer = {
name: 'Euclides Santana',
role: 'Software & Security Engineer',
focus: [
'Extreme Performance',
'Offensive Security',
'Nuxt Architecture'
],
mission: 'Speed without vulnerabilities'
}
Performance is not optional; it is the foundation of the user experience. My projects are developed under a Zero Trust architecture, with military-grade security headers, strict CSP policies, and aggressive runtime optimizations. I don't just build websites; I build ultra-fast digital fortresses.
The tools and technologies I use to build secure and high-performance applications.
Scalable, audited, and real-world-ready solutions.

This portfolio — Performance 100, Accessibility 100, Best Practices 100, SEO 100. Built with Nuxt 4, Tailwind, and nuxt-security. A+ Headers and strict CSP.

Corporate website focused on cybersecurity and software engineering. Absolute highlight in metrics: Lighthouse 100, A+ on Mozilla Security, perfect Core Web Vitals, and Low CO2 certification.
Custom automation pipelines using n8n for data processing, API integrations, and workflow orchestration with a security-focused design.

Offensive and defensive security services: SOC analysis, Threat Intelligence, Zero Trust modeling, and infrastructure hardening for enterprise environments.
Make your software architecture impenetrable and highly performant. Get in touch.