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04Public SectorDec 2021 — Mar 2022

OptimalTax — Automated Tax Returns

SecteurPublic Sector
PériodeDec 2021 — Mar 2022
MarchéIN
Livré viaINTERIMA
01Le brief

Ce qui était réellement cassé.

Filing a federal tax return meant navigating rules most residents could not reasonably be expected to know. Any automation had to be exactly right: a miscalculated return is not a bug you apologise for, it is a regulatory problem for the filer.

02Lecture technique

Comment ça a été construit.

L'architecture, les contraintes contre lesquelles elle a été choisie, et les compromis qui sont venus avec.

Directed the platform end to end — a rules engine for federal tax calculation with the compliance logic isolated from the presentation layer, so a rule change never meant touching the UI. Rigorous QA testing and secure coding practices upheld data integrity and confidentiality across the filing lifecycle. Backend systems and database queries were optimised for the filing-season traffic spike, and a documented REST API backed the mobile clients.

Stack

JavaSpring BootREST APIsSwaggerPostgreSQLAgile
03Lecture business

Ce que ça a fait bouger.

Mesuré après livraison, par rapport aux chiffres de départ de la mission.

Tax calculation accuracy
99%
Processing time
−25%
Regulatory compliance
Maintained