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Iurii Rogulia, IT partner for business & fractional CTO. Professionally building software since 2001.

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TMI Iurii Rogulia
VAT ID: FI29845875
DUNS: 368664211
Lappeenranta, Finland 🇫🇮

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Iurii Uses: #Fintech

1 project · 1 article

Fintech projects sit at the intersection of finance and technology — payment processing, banking integrations, invoicing systems, and regulatory-compliant data handling.

Projects

vatnode — EU VAT Validation API
vatnode — EU VAT Validation API
January 19, 2026
vatnode — EU VAT Validation API

Developer-first SaaS API for EU VAT validation via VIES with Redis caching, change monitoring, and webhook notifications.

Stack

Next.jsReactTypeScriptHonoNode.jsTurborepoDockerCaddy

Libraries

Drizzle ORMBullMQZodBetter AuthTanStack QueryZustand

Databases

PostgreSQLRedis

Services

StripeResendGoogle Analytics

Topics

SaaSAPIAuthFintechTax/VATMonorepoWebhooksSEOSchema.org

Articles

EU VAT Number Validation in Next.js (VIES API Tutorial)
February 5, 2026· 12 min
EU VAT Number Validation in Next.js (VIES API Tutorial)

EU VAT validation in Next.js: VIES caching with Redis, three-state results, reverse charge logic, and audit logging — what actually works in production.

Stack

Next.jsTypeScript

Databases

Redis

Topics

Tax/VATFintechE-commerceSaaS
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Whether it's a new product, an integration, or scaling an existing system — let's talk about how I can help.

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