Case studies
Calculation and record-keeping systems in place of spreadsheets: a relational schema instead of drifting files, permissions enforced at the API, automated money calculations and reconciliation against a reference.
3 projects in this category · R&D and engineering
Task: Remove manual work and errors from the Excel model.
Solution: A calculation engine plus automatic reconciliation against the Excel reference.
Result: Metrics: 1:1 match with the reference across 25 report rows and 5 KPIs, 4 methodology errors caught by automated checks, memorandum issued in seconds.
Fintech · Financial modelling
Context: Investment project calculations instead of Excel: KPIs over 30 years, sensitivity analysis, export to PDF and Excel. Built from scratch on FastAPI + React.
Open project ↗Task: Eliminate data loss in spreadsheets and manual recalculation of payments.
Solution: Relational schema, API-level access control, automatic payout calculation.
Result: Metrics: 5 spreadsheets replaced by one system, manual payout recalculation fully eliminated, monthly reconciliation time down ~85%.
Backend · SaaS · Education
Context: Replacing a set of five Google Sheets with a relational system. Tracking of lessons, students, rates and settlements. Built from scratch: FastAPI and PostgreSQL on the backend, React and TypeScript on the frontend, deployed with Docker.
Open project ↗Task: Bring the operational loop into a single window.
Solution: A single monitoring and control panel.
Result: Metrics: MTTR down ~39%, report preparation x8.3 faster, SLA breaches down ~31%.
Software · Operations
Context: Metrics, requests and process monitoring in one interface for the operations team.
Describe the task, the data and the timeline. We will propose a format and an outline plan. Reply within one business day, NDA on request.
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