The Czech Association of Occupational Therapists (ČAE) brings together occupational therapists from across the country. It needed more than a website: member and membership-fee records, accreditation of training events, lifelong-learning certificates and a member area. We delivered a Next.js 15 public site, a 16-module admin and a .NET 9 backend connected to Fio bank — with the first CMS and admin release in 15 days.
An association runs on people and paperwork: new member applications, annual membership fees, requests to accredit training events, lifelong-learning certificates, job ads and events with registration. The website had to handle these processes online — from submitting a request through payment to issuing a confirmation — and give the association office a single place to manage it all.
We designed and built the whole system from scratch. The .NET 9 application serves the API and the admin and forwards public pages to Next.js via YARP. One image, one pipeline, simple operations.
Next.js 15 with server-side rendering. Content is a page tree with four page types: category, Markdown page, system page and document. System pages cover news, events, accredited training events, contacts, full-text search and a map-based therapist finder.
Sign-in with Google or a one-time code sent by e-mail. Members get job ads, webinars and partner discount codes, pay their fee via QR code and download a PDF membership confirmation. The public can verify membership online.
A step-by-step form for three request types: training event accreditation, lifelong-learning certificate and job ad publication. Each request gets a reference number, an "awaiting payment" state and, once processed, an electronically signed PDF.
A background job downloads transactions from Fio bank and matches them to membership fees and requests using QR payment data (SPAYD). The integration replaced the previous processing of bank e-mail notifications. Annual membership renewal runs automatically.
Event registration with ticket types, custom form fields and billing details (auto-filled from the ARES company registry). Attendees receive credits and a certificate of attendance.
React 19 + MUI 7 in three groups — Records (members, groups, pricing, facilities, partners, filing office, invoices), Content (pages, job ads, webinars, events, discount codes, contacts, e-mailing) and System (CDN, users). Per-module permissions, a Markdown editor and drag-and-drop page ordering.
Old URLs of journal articles 308-redirect to their new addresses, so links from other websites keep working.
A single Docker image built in four stages. .NET 9 serves /api and /admin and forwards everything else to Next.js SSR via YARP. Data in PostgreSQL accessed via Managed Identity, documents in Cloudflare R2, secrets in Azure Key Vault. Traefik handles TLS, Cloudflare provides CDN and WAF. Azure DevOps pipeline: gitleaks → ACR → deploy → health check.
A direct Fio API integration matches incoming payments to fees and requests. The office no longer has to compare bank statements by hand.
Lifelong-learning certificates and membership confirmations are generated as electronically signed PDFs (PAdES), ready to download.
Training event accreditation, certificates and job ads are submitted through a step-by-step form. Every request has a reference number, a state and a history in the admin.
The public can find an occupational therapist or facility nearby on a map (Leaflet, geocoding via Nominatim).
Pages, events, webinars, job ads, partners and e-mail campaigns are managed by the association in the admin. Per-module permissions control who can do what.
One Docker image, secrets in Azure Key Vault, passwordless database access via Managed Identity, and a pipeline with secret scanning (gitleaks) and a post-deploy health check.
Multitenant SaaS for dental clinics — from booking to insurance billing
Data warehouse on Microsoft Fabric for a 200+ pharmacy chain
Full replacement of an MLM sales network management system in 3 months
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