Reliability Interface

This interface is intentionally minimal. It is built for on call use, with fast loads, clear error states, and no heavy frameworks. The UI exists to expose real system behavior so operators can see what is happening and act quickly.

Architecture

Static first delivery

Content is served as a static site from S3 behind CloudFront, which keeps the UI independent from backend availability and keeps TLS termination at the edge. JavaScript is only used where data must be live from APIs.

Fewer moving parts in the UI surface, lower risk during incidents.

S3 static hosting CloudFront caching ACM managed TLS

Reliability

Failure is a first class state

The UI is built to surface failure, not hide it. API errors, timeouts, and stale data are displayed directly instead of being masked by loaders or aggressive retries.

Matches how internal dashboards behave in production so on call sees real risk.

Error states Timeout aware Degraded mode UX

Design goals

Signal over decoration

Layout favors legibility and predictable structure. Every component supports operational visibility, such as status at a glance, clear hierarchy, and keyboard friendly navigation.

Optimized for real use during incidents, not for visual flash.

No frameworks Accessible UI Performance first

Delivery pipeline

Static site CI and deployment

Source for this interface is tracked in a private GitHub repository. Changes are built and validated in GitHub Actions, then synced to an S3 bucket behind CloudFront as an atomic deploy.

Each deploy is versioned and reversible, and CloudFront invalidations are scoped to changed assets to control cost.

Selected code and pipelines are available on request during interview.