// selected_work

Selected systems and reference builds

These reference builds document product structure, operating constraints, failure handling, and engineering trade-offs. They are not presented as named client case studies, and no production outcome should be inferred unless it is explicitly supported by linked evidence.

Evidence boundary

The repository contains these narratives and their static Work pages. It does not link public executable demos, named customer deployments, production telemetry, or independent validation for these entries.

Reference buildDocumented design reference

Ops Console

Intended users: Operations team, Support operator, Product owner, Technical administrator
Operating problem: Operational state and privileged actions are fragmented across dashboards, spreadsheets, email, and alerts, leaving operators unsure which action is safe.
Demonstrates: A modeled console structure for role-scoped actions, append-only change history, stale-state visibility, and bounded recovery.
Failure considered: An operator acts on stale state or repeats a privileged bulk action without a reliable record or recovery path.

Reference buildDocumented design reference

Client Portal

Intended users: Customer, Client administrator, Internal account operator
Operating problem: Customers need secure, consistent access to records, requests, documents, and workflow status without relying on fragmented email servicing.
Demonstrates: A modeled portal structure for tenant isolation, bounded access links, recoverable sign-in, and event-based status history.
Failure considered: A missing tenant boundary or stale workflow state exposes another account’s data or gives the customer a false view of progress.

Reference buildDocumented design reference

Webhook Relay

Intended users: Application operator, Integration engineer, Background processing system
Operating problem: External systems can deliver duplicate, delayed, malformed, invalid, or out-of-order events, creating silent gaps and inconsistent downstream state.
Demonstrates: A modeled relay boundary for signature decisions, persisted intake, duplicate detection, bounded retries, dead-letter review, and reconciliation.
Failure considered: An event is acknowledged, duplicated, or exhausted without a visible downstream state or deliberate recovery path.

Have a similar system to build or stabilise?

Start with the operating problem, the users who depend on it, and the failure or ownership risk that needs to become visible.

Discuss the system