Hey, I’m Demóstenes.
Complex web & mobile products, made accessible and built to last.
Software 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
Outcomes
What changes when I join.
I take on the hard, high-stakes parts of a product, the ones that need experienced ownership rather than more implementation capacity.
Features stop getting slower to ship.
Architecture that serves the roadmap instead of fighting it, on React, Next.js, Vue, or Angular. I meet your stack where it is rather than forcing mine.
Accessibility stops being a recurring bug.
WCAG 2.1 / 2.2 handled as a requirement, shipped across banking products used by 50M+ people. Bilingual, with real internationalization and localization experience.
The interface stops drifting.
Tokens, components, and patterns that keep a growing product coherent, plus the migration work that makes a team actually reach for them.
The risky parts stop being risky.
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.
Start a conversation