Work

Projects I've contributed to since 2019. Public sector, tourism, healthcare, fintech and IoT.

• Own Product · Audio SaaS

  Vohito

  My own SaaS product, in active development: async collaboration for voice-over artists and voice actors. I build everything solo: backend, frontend, and infrastructure.

  • Waveform review of recorded takes: timestamped comments, markers, approve/reject
  • Token-gated delivery links: clients preview and download final audio without creating an account
  • S3 uploads with background processing: antivirus scan, audio analysis, preview transcoding
  C#ASP.NET CorePostgreSQLSvelteKitSvelte 5Tailwind CSSS3
• Public Sector · Tourism

  eVisitor

  Croatia's national tourist stay registration system, one of the largest public-facing government platforms in Croatia.

  • Full UI redesign and WCAG accessibility overhaul: semantic HTML, high-contrast themes, audited with IBM Equal Access Checker and Google Lighthouse
  • HRK→EUR financial migration across the entire system, completed ahead of the January 2023 Euro adoption deadline
  • NIAS authentication integration (e-Citizen + EU login)
  • Rental unit showcase, HUB3a payment slip generator, in-app mailbox
  C#.NET FrameworkASP.NETMSSQLjQueryKendo
• Fintech

  ProfitCard

  Regional fintech platform: contributed to architecture, design, and nearly every major feature over six months.

  • Designed and repeatedly reworked the access control system as requirements shifted week to week
  • Built the OCR-based KYC pipeline: ID card scanning to validate user identities at onboarding
  • Full-stack involvement across backend services, Blazor frontend, Kafka messaging, and Redis distributed caching
  C#ASP.NETBlazorPostgreSQLMongoDBKafkaRedis
• IoT · Smart City

  UŠO-GIS

  Sports facility management platform with IoT device integration across halls in Zagreb.

  • Kafka-based IoT device communication and state management
  • OpenStreetMap UI for drawing facility boundaries and configuring LED lights as GeoJSON points, with translation and rotation support
  • Work orders, inventory, alerts, and maintenance reporting
  C#ASP.NETPostgreSQLKafkaDockerGeoJSON
• Healthcare · Dental

  TimelineMaster

  Management platform for dental practices: full backend rewrite from a low-code foundation.

  • Migrated a low-code scaffolded project to a proper EF Core codebase: untangled cryptic APIs and database schema
  • Rewrote and corrected critical business logic previously buried in SQL stored procedures
  • Croatian fiscalization integration
  C#ASP.NETMSSQLEntity Framework Core
• Public Sector · Medical

  HALMED

  Agency for Medicinal Products and Medical Devices of Croatia: internal ERP and external partner portal.

  • External partner portal for medicine approval requests: multi-step wizard with file import/export for partner-submitted data
  • Bug fixes and feature additions on the internal regulatory ERP
  TypeScriptC#AngularASP.NET WCFMSSQL
• Business Operations

  MyBusiness

  Workplace health & safety documentation management system, later expanded with ERP and e-Learning modules.

  • Work order, e-Learning, and company/staff management modules built from scratch
  • Access control design and implementation
  C#ASP.NETPostgreSQLjQuery
• Public Sector

  eAkreditacija

  Croatian Accreditation Agency (HAA): NIAS authentication integration.

  • NIAS has an unfixed bug in its SAML 2.0 implementation requiring a custom workaround
  • Built a custom Keycloak authentication module in Java to bridge NIAS with the application
  JavaKeycloakC#ASP.NET