Engineering proof · Private systems, public signal
The strongest work is private. The engineering story is not.
TEO, Musterhall, and CrimCaseAI best represent how I design and ship systems. Their repositories stay private, so this page leads with what I built and why it was difficult, then puts public activity from both GitHub accounts in context.
Private systems, documented at the decision level.
Most current product and client work lives in private repositories. The case studies explain the architecture, constraints, and decisions; public activity follows as supporting evidence.
Selected private systems
The work I would put in front of a technical interviewer.
The repositories remain private. Each case study documents the system boundary, my role, what I built, and the hard part without publishing protected source.
01ALead Full-Stack Engineer
Private repository · Case study available
TEO
Property-management financial SaaS
What I builtPayments and accounts receivable across QuickBooks, Payabli, webhooks, background workers, and ledger-derived invoice state.
Why it was hardA financial product has to preserve one trustworthy account of an invoice while QuickBooks, hosted checkout, webhooks, and background jobs all change it.
What I builtA Next.js web app, Flutter mobile app, Supabase/Postgres backend, live classrooms, and one shared design-token pipeline.
Why it was hardOne learning product needed to behave coherently across web, mobile, real-time rooms, and a database with product rules that could not drift by client.
What I builtCase-management and evidence-intelligence systems spanning in-browser ML, local processing, entity graphs, and citation-gated AI.
Why it was hardLegal teams need useful intelligence from sensitive case material without weakening privilege, provenance, or the operating boundaries of restricted environments.
The calendar and repository statistics establish visible recency and breadth. They support the private-system evidence above; they do not replace it.
Public-profile contributions · 12 mo
2,043
Combined public repos
48
Top languages by bytes
TypeScript · Swift · HTML · Dart
Latest public activity
Jun 20, 2026
Trailing 12 months
One combined contribution calendar.
2,043 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's public profile calendar can include anonymized private contributions. This cached snapshot cannot separate those contributions by day.
Public snapshots
Inspectable examples, not a ranking of my best work.
These smaller repositories can be reviewed directly. They remain here for code-level inspection and transparency, but they are supporting material.
01TypeScript
Personal · shagene
Quote Extractor
Schema-enforced LLM quote extraction with deterministic validation and a source-side human review workflow.