Piotr Wislowski
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Systems behind the numbers

Case studies in finance operations, tax modelling and investment research.

  1. 30 Jun 2026

    OneOperations – a centralised internal operations platform

    Turning inconsistent spreadsheet processes into repeatable finance workflows, with an architecture suited to each task.

  2. 26 Nov 2025

    TaxFlow

    Making segmented profit and loss calculations traceable, from source data to tax treatment.

  3. 15 Jul 2024

    Cost Plus Solution

    Standardising recurring cost-plus calculations so the same rules can be applied across entities and reporting periods.

  4. 29 Mar 2026

    Regima

    Building a portfolio research platform where investors control their data, allocation rules and backtests.

© 2026 · Piotr Wislowski
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