Case 02 · Business systems

Business Systems

Replacing manual work and spreadsheets with systems that make operations efficient: from paper and Excel to multi-tenant SaaS used by many companies.

IndustryAccounting · retail · forestry
Projects3 featured here
Period2024 – 2026
StackRuby on Rails · Java Spring Boot · Kafka · PWA
Accounting

Multi-tenant expense management

Several companies on one platform, each with its own database. Receipts are read automatically by OCR, then go through approval and reports.

Key features
  • Receipts read by OCR
  • Approval workflow
  • Reports
  • Separate database per company
Period2025
Tech stack
  • Ruby on Rails
  • Google Cloud Vision OCR
  • Azure Storage
Retail

Department-store shift management

Central staff shift scheduling for a department store, with single sign-on and a large-scale event-driven design.

Key features
  • Central shift scheduling
  • Single sign-on (SSO)
  • Event-driven at scale
Period2024 –
Tech stack
  • Java Spring Boot
  • Keycloak
  • Kafka
  • AWS
Forestry

Forestry work & workforce management

Task assignment and progress for forestry crews, automated payroll, and clock-in that works offline in the field.

Key features
  • Task assignment & progress
  • Automated payroll
  • Offline clock-in (PWA)
Period2026
Tech stack
  • Ruby on Rails
  • PWA
  • Turbo
  • Stimulus

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