LEONARDO ACOSTA

 ~/main
❯ pnpx @leo/contact

Software engineer building products that scale.

8+ years shipping SaaS platforms, event systems, and developer tools. CTO-level architecture meets hands-on engineering — Dallas, TX.

Develop
Deploy
Scale
Pass Down

Full-stack engineering

Next.js + tRPC + Drizzle + Postgres. From schema to UI, including the boring parts. Strict typing, real error handling, no shortcuts that bite you in week three.

export const projectRouter = router({
  byId: publicProcedure
    .input(z.string().uuid())
    .query(({ input }) =>
      db
        .select()
        .from(projects)
        .where(eq(projects.id, input))
    ),
});

DevOps

Vercel, AWS, Terraform. CI/CD pipelines with real gates. Production observability via Sentry + OpenTelemetry. Deploys you can roll back without praying.

resource "vercel_project" "portfolio" {
  name      = "leonardoacosta-dev"
  framework = "nextjs"
  git_repository = {
    type = "github"
    repo = "leoleonardoacosta/la"
  }
}

System design

API contracts, event flows, multi-tenant data models. CTO-level decisions, not committee diagrams. The boring choices that pay off over years.

// Outbox pattern: events written in same tx as state
await db.transaction(async (tx) => {
  await tx
    .update(orders)
    .set({ status: 'paid' })
    .where(eq(orders.id, orderId));

  await tx.insert(outbox).values({
    event: 'order.paid',
    payload: { orderId, amount },
  });
});

Mentorship

1:1 architecture reviews, code-review coaching, hiring rubrics. I help engineers grow without burning them out — and help leads stop shipping the same bugs twice.

review_focus:
  - boundary_violations    # cross-module leaks
  - test_first             # red before green
  - rollback_safety        # can we undo this in prod?
  - reader_optimization    # cognitive load per line

SELECTED WORK