Senior Full-Stack Engineer (Founding Engineer)
Baslic — Fidanet Solution Oy · Helsinki / Finland · Full-time
About Baslic
We're building the auditable, cross-border AI tax-compliance engine for European businesses — starting with the Nordics. Live product, real customers, and a hard deadline on our side: the EU's ViDA regime makes cross-border digital tax reporting mandatory by 2030. We're a two-founder team looking for our founding engineer.
What you'll do
Own the technical backbone of our compliance engine: structured e-invoicing (EN 16931), near-real-time digital reporting, cross-border VAT determination, PSD2 bank-transaction matching, and government API integrations (Vero and beyond). You'll ship, not spectate.
You'll thrive here if you
- Have strong full-stack experience with TypeScript / Next.js / PostgreSQL
- Love integration-heavy backend work — APIs, structured data (XML/JSON), third-party and government systems
- Are self-directed and comfortable owning a domain in a small team
- Care about precision — in tax, a wrong number is a legal issue, not a bug
Bonus points
- AI/LLM integration experience (RAG, grounding, evaluation)
- Fintech / regtech / accounting domain familiarity
- GDPR / financial-data security awareness
What we offer
A founding-engineer seat with real ownership (equity/ESOP), a live product with users from day one, and a category-defining problem on an EU-wide clock. Based in Finland.