Engineering proof · Private systems, public signal
The strongest work is private. The engineering story is not.
Aegis, Semper Command Center, and VolumeGuard are owner-controlled products whose repositories stay private. This page documents what I built and the constraints that shaped each system, then puts public activity from both GitHub accounts in context.
Private engineering, documented without exposing source.
The strongest owner-controlled product work lives in private repositories. These summaries explain the architecture and constraints; public activity follows as supporting evidence.
Selected private engineering
Owner-controlled systems I can discuss at the architecture level.
The code stays private. Each snapshot names the product boundary, my role, what I built, and the constraint that shaped the system without publishing protected source.
01Founder & Principal Engineer
Semper product · Source private
Aegis
Local-first legal evidence intelligence
What I builtA FastAPI and React appliance that ingests discovery, preserves source hashes, processes documents and media locally, and supports case-scoped search with source-linked answers.
Hard constraintRaw evidence remains read-only and case-scoped; restricted material produces no derivatives, and AI must cite the record or decline to answer.
02Founder & Principal Engineer
Semper product · Source private
Semper Command Center
AI-assisted sourcing operations
What I builtA Next.js operations hub that turns part requests, supplier results, and replies into durable RFQ jobs with role-scoped queues, evidence-backed rankings, handoff briefs, and a hash-chained work log.
Hard constraintAI can normalize, rank, and draft, but purchasing, supplier outreach, and customer-facing quotes remain behind explicit human review.
03Founder & Android Product Engineer
Semper product · Source private
VolumeGuard
Native Android utility
What I builtA Kotlin and Jetpack Compose app that enforces user-selected media-volume limits through coordinated service, system-observer, notification-listener, media-session, and fallback polling paths.
Hard constraintAndroid provides no sanctioned volume-lock API, so enforcement must recover across independent change paths without creating feedback loops or excessive battery use.
Supporting signal
One public activity view across both accounts.
The calendar and repository statistics establish visible recency and breadth. They support the private-engineering evidence above; they do not replace it.
Public contributions · 12 mo
23
Combined public repos
48
Top languages by bytes
TypeScript · Swift · HTML · Dart
Latest public activity
Aug 11, 2026
Trailing 12 months
One combined contribution calendar.
2,076 contributions visible across both public profiles.
Scroll horizontally to inspect the full year.
Combined activity visible across my personal account and Semper Digital Solutions. Client repositories remain private; these are the public profiles and repositories.
GitHub includes 2,053 anonymized private contributions in the visible calendar. The public-contribution statistic excludes them.