hivvan.devOUTPUT / IDENTITY> I BUILD BACKEND SYSTEMS WITH JAVA,SPRING BOOT AND POSTGRESQL.READY
Java Backend Developer

Héctor V.

Lens

Active Development

Lens: I built Lens to turn noisy operational events into traceable incidents. Events are normalized and deduplicated before deterministic scoring, workflow changes enter activity history, and notifications move through an outbox with leasing and retries.

lens.viewer
Dashboard

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Lens dashboard with incident metrics, priority distribution and priority queue.

The score combines frequency, recurrence, source criticality and event impact, stays within [0, 100], and is stored with its factor breakdown.

Tracer

Active Development

Tracer: I built Tracer as a local-first personal finance app backed by SQLite. It stores EUR amounts as integer cents and rebuilds ledger and dashboard projections from recorded events. CSV imports are reviewed before reaching the ledger, with local tools for backup, restore validation and recovery.

tracer.viewer
Overview

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Tracer overview with monthly projections, financial readings and a weekly planner.

Tracer uses a configurable local home for its SQLite database, documents and recovery files. The runtime listens on the loopback interface by default, so financial data stays on the user's machine.