A Renaissance-style oil painting of Gontse Sebolai working with a quill and compass in a period workshop.

Project laboratory

Financial operations control system

Aegis
Ledger

A financial-operations control system for reviewing sensitive account activity with an attributable audit trail and independent decision points.

Why this build

Make the engineering judgement visible.

Aegis Ledger is a locally verified graduate-programme evidence build for banking, investment and technology roles. It makes the relevant financial-operations constraints visible: permissions, traceability, review and testability.

The API and operations console now exist locally. The evidence includes domain and HTTP integration tests, frontend workflow tests, responsive browser checks, a PostgreSQL migration and a Linux container. It remains a portfolio build, not a production banking system.

01

Identity and permissions

JWT bearer authentication and five policy-controlled roles

02

Operational audit trail

Append-only events for every accepted case transition

03

Risk review

Domain-enforced separation between maker, analyst and reviewer

04

Delivery discipline

14 API/domain tests, five frontend tests and four browser checks

An application that earns its claims.

Every implementation milestone becomes a recruiter-facing artefact: a readable README, schema decision, test output, short demo and a focused case study.

  1. 01

    Implemented — .NET 10 LTS API, PostgreSQL schema and first migration

  2. 02

    Implemented — React/TypeScript console with role-aware assignment and decisions

  3. 03

    Next — authorised queue API, concurrency control and PostgreSQL integration tests

Technical evidence checkpoint

The interface follows the evidence, not the other way around.

The repository stays unpublished until its setup, API/UI boundary and remaining limitations are ready for independent review.

Employer-led .NET and React stack rationale
Five frontend tests plus desktop/mobile browser checks
Fourteen .NET tests and a fresh PostgreSQL migration
Discuss the build View Mercator Relay

Working locally; deliberately not presented as deployed, public or production-ready.