I design and ship production SaaS on Next.js, NestJS, and PostgreSQL — multi-tenant products, billing, and schemas another engineer can keep running.
5+ years taking products from MVP to production for US teams. Clients bring me in when one person needs to own the technical side: the data model, permissions, the API, and the interface.
- Focus: schema-first SaaS, RBAC, typed full-stack delivery
- Based in: Lviv, Ukraine · UTC+3 · Available for freelance
Architecture is worked into the program by all the little decisions we made — little decisions that were right, and little decisions that were wrong and corrected.
— Ward Cunningham
Full write-ups and screens on sanotskyi.dev
- Just Fare — US B2B catering admin: multi-client ops, analytics, weekly billing · React, Firebase
- DecisionSignal — privacy-first anonymous workplace signals · Next.js, NestJS, PostgreSQL
- Fieldspace — sports booking & memberships, Stripe Connect · Next.js
- Podflow — artwork → Shopify automation, mockups, multi-store sync · Next.js, Prisma
- Storinky — social book-tracking from MVP to an active user base · React, Node, MongoDB
