About Vulcan

Built on a decade of production engineering.

Vulcan is a web development agency operating from São Paulo (UTC−3), async-friendly with teams across the US, EU, and LATAM. Our engineering background is direct in-house experience across SaaS, marketplaces, mobility, and consumer products — the kind of work where downtime, data loss, or shipping the wrong thing has real consequences.

We take engagements where one team handles strategy, design, and engineering end to end. No handoffs, no disguised outsourcing. What we ship is what we own.

Capabilities

Tools picked for what fits.

Not a wishlist — every item on this list has shipped in production systems we've owned or built. We pick what makes sense for the problem, not what's trending.

  • Backend systems

    Ruby on Rails · Node.js · NestJS · TypeScript · Python

  • Databases & data pipelines

    PostgreSQL · Drizzle · Redis · full-text search at scale

  • AI / LLM integration

    OpenAI API · LLM microservices · n8n workflows

  • Frontend

    Next.js · React · React Native · Tailwind

  • Infrastructure

    AWS · Railway · Vercel · Docker · Kubernetes · CI/CD

  • Observability & on-call

    Datadog · New Relic · Sentry · incident response