Hey, I’m Demóstenes.
Complex web & mobile products, made accessible and built to last.
Architect and full-stack engineer with 15+ years across React, Vue, Angular and native mobile, owning the accessibility, design-system, and architecture decisions on products used by millions, at CollectiveHealth, ProductPlan, and Bank of America.
Trusted with frontends at scale
- HealthcareCollectiveHealth
- 600K+ members
- B2B SaaSProductPlan
- 3,000+ companies
- Fintech & BankingBank of America · Amex
- 50M+ users
Practice
What I work on.
The hard, high-stakes parts of a product that need experienced ownership, not just more implementation capacity. Web or mobile, whichever framework you’re on.
Web & Mobile Products
React, Next.js, Vue, and Angular on the web, plus native-quality mobile apps. I meet your stack where it is, instead of forcing mine.
Accessibility & i18n
WCAG 2.1 / 2.2 as a requirement, not a retrofit, shipped across banking products used by 50M+ people. Bilingual, with real internationalization and localization experience.
Design Systems
Tokens, components, and patterns that keep a growing product consistent without slowing the team down.
Full-Stack & Cloud
Node, Rails, Laravel, GraphQL, and the cloud (AWS, GCP, Firebase, Supabase): state and data flow you can reason about, front to back. AI-accelerated, but reviewed and safe.
Writing
From the blog (se habla español)
Let’s build your next project.
Tell me what you’re building and where your frontend needs help. We’ll find the critical decisions and a clear path forward, together.
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