ANcpLua · ANcpLua · Jul 2, 2026 · Jul 2, 2026
diff --git a/src/app/components/contact/contact-card.component.ts b/src/app/components/contact/contact-card.component.ts
@@ -52,7 +52,7 @@ const LINKEDIN_PATH =
                 <p
                   class="text-foreground/65 mb-6 max-w-[29ch] text-[18px] leading-[1.4] tracking-tight sm:text-[22px]"
                 >
-                  Open to full-stack C# / .NET and React/Angular roles, freelance, and
+                  Open to full-stack C# / .NET and React roles, freelance, and
                   collaboration. Based in Vienna — happy to talk remote or on-site.
                 </p>
                 <app-cta-row label="See projects" />

diff --git a/src/app/components/hero/hero.component.ts b/src/app/components/hero/hero.component.ts
@@ -24,7 +24,7 @@ import { PortraitMorphComponent } from './portrait-morph.component';
             </h1>
 
             <p class="text-foreground/65 max-w-[36ch] text-[22px] leading-[1.4] tracking-tight">
-              I build .NET backends and React/Angular frontends — plus an open-source ecosystem of
+              I build .NET backends and React frontends — plus an open-source ecosystem of
               48 packages with 340k+ downloads.
             </p>
 

diff --git a/src/app/pages/about-page.component.ts b/src/app/pages/about-page.component.ts
@@ -43,7 +43,7 @@ import { ContactCardComponent } from '../components/contact/contact-card.compone
                 <strong class="text-foreground font-semibold">full-stack software engineer</strong>
                 in Vienna working primarily in
                 <strong class="text-foreground font-semibold">C# / .NET</strong> with
-                <strong class="text-foreground font-semibold">Angular</strong> and React on the
+                <strong class="text-foreground font-semibold">React</strong> on the
                 frontend. At RUBICON IT (2023–2025, dual study) I shipped production apps across
                 ASP.NET Core, Blazor, Vue 3, and WPF in an agile team, alongside a Computer Science
                 degree.

diff --git a/src/app/portfolio-data.spec.ts b/src/app/portfolio-data.spec.ts
@@ -13,7 +13,7 @@ describe('portfolio content', () => {
     expect(projects.length).toBeGreaterThanOrEqual(6);
     expect(experienceEntries.length).toBeGreaterThanOrEqual(2);
     expect(educationEntries.length).toBeGreaterThanOrEqual(2);
-    expect(skills).toContain('Angular');
+    expect(skills).toContain('React');
     expect(stackChips.some((chip) => chip.label === '.NET')).toBe(true);
   });
 

diff --git a/src/app/portfolio-data.ts b/src/app/portfolio-data.ts
@@ -66,6 +66,17 @@ export const projects: Project[] = [
     tint: '#22b8cf',
     image: '/projects/dicom-fhir.jpg',
   },
+  {
+    id: 'abstention-bench',
+    icon: LucideRadar,
+    name: 'clinical-abstention-bench',
+    title: 'Does a medical AI know when it doesn’t know?',
+    description:
+      'A benchmark for calibrated abstention: models must decide when to answer and when to escalate to a human, measured on degraded clinical inputs against a fail-closed .NET evaluation engine.',
+    meta: 'LLM evaluation · calibrated abstention · .NET',
+    url: 'https://github.com/ANcpLua/clinical-abstention-bench',
+    tint: '#e63946',
+  },
   {
     id: 'errororx',
     icon: LucideZap,
@@ -142,10 +153,10 @@ export const projects: Project[] = [
     id: 'tourplanner',
     icon: LucideMap,
     name: 'TourPlanner-Angular',
-    title: 'Angular 21 SPA on a .NET 10 API',
+    title: 'Full-stack TypeScript SPA on a .NET 10 API',
     description:
       'A full tour-planning single-page app with an OpenAPI-typed client against a .NET 10 backend — 429 tests across NUnit and Vitest, fully Dockerised.',
-    meta: 'Angular 21 · .NET 10 · 429 tests',
+    meta: 'TypeScript SPA · .NET 10 · 429 tests',
     url: 'https://github.com/ANcpLua/TourPlanner-Angular',
     tint: '#dd0031',
     image: '/projects/tourplanner.svg',
@@ -307,15 +318,15 @@ export const educationEntries: EducationEntry[] = [
 export const skills: readonly string[] = [
   'C# / .NET',
   'ASP.NET Core',
-  'Angular',
-  'React & Vue',
+  'React',
   'TypeScript',
   'Messaging & Event-Driven (RabbitMQ)',
   'Observability (OpenTelemetry)',
   'Roslyn Analyzers & Source Generators',
   'EF Core · PostgreSQL',
   'REST / OpenAPI',
   'LLM Agent Infrastructure',
+  'LLM Evaluation & Calibrated Abstention',
   'Testing (xUnit · NUnit · Vitest)',
   'Docker · CI/CD',
 ];
@@ -330,9 +341,8 @@ export type StackChip = {
 
 export const stackChips: StackChip[] = [
   { label: '.NET', slug: 'dotnet', bg: '#512BD4', fg: '#ffffff' },
-  { label: 'Angular', slug: 'angular', bg: '#dd0031', fg: '#ffffff' },
-  { label: 'TypeScript', slug: 'typescript', bg: '#2F74C0', fg: '#ffffff' },
   { label: 'React', slug: 'react', bg: '#20232a', fg: '#61dafb' },
+  { label: 'TypeScript', slug: 'typescript', bg: '#2F74C0', fg: '#ffffff' },
   { label: 'Vue', slug: 'vuedotjs', bg: '#35495e', fg: '#42b883' },
   { label: 'PostgreSQL', slug: 'postgresql', bg: '#336791', fg: '#ffffff' },
   { label: 'Docker', slug: 'docker', bg: '#2496ED', fg: '#ffffff' },

diff --git a/src/app/profile.ts b/src/app/profile.ts
@@ -22,7 +22,7 @@ export const PROFILE_CONTEXT = `
 Based in Vienna, Austria. Contact: ${OWNER.email} · GitHub github.com/ANcpLua · NuGet nuget.org/profiles/ANcpLua · LinkedIn linkedin.com/in/alexander-nachtmann. Languages: German (native), English (fluent).
 
 ## Summary
-Full-stack software engineer working primarily in C# / .NET, with Angular and React on the frontend. Professional experience at RUBICON IT (2023–2025, dual study) across ASP.NET Core, Blazor, Vue, and WPF, alongside a Computer Science degree. Maintains a substantial open-source portfolio — 48 published .NET packages with 340,000+ downloads — and contributes upstream to Microsoft's dotnet/aspnetcore and the OpenTelemetry project. Comfortable across the full stack: REST / OpenAPI backends, single-page frontends (Angular and React), automated testing, CI/CD, and containerised deployment. Especially drawn to event-driven architecture and messaging (RabbitMQ, MassTransit) and to observability (OpenTelemetry) — the areas he digs into for their own sake, well beyond anything a job has required.
+Full-stack software engineer working primarily in C# / .NET, with React on the frontend. Professional experience at RUBICON IT (2023–2025, dual study) across ASP.NET Core, Blazor, Vue, and WPF, alongside a Computer Science degree. Maintains a substantial open-source portfolio — 48 published .NET packages with 340,000+ downloads — and contributes upstream to Microsoft's dotnet/aspnetcore and the OpenTelemetry project. Comfortable across the full stack: REST / OpenAPI backends, single-page frontends (React), automated testing, CI/CD, and containerised deployment. Especially drawn to event-driven architecture and messaging (RabbitMQ, MassTransit) and to observability (OpenTelemetry) — the areas he digs into for their own sake, well beyond anything a job has required.
 
 ## Experience
 - RUBICON IT GmbH, Vienna (Aug 2023 – Jun 2025) — Fullstack C# Software Developer, dual study (alternating work/study phases). Built full-stack applications on C#, ASP.NET Core, Blazor, Vue 3, and WPF in an agile team. Backend with EF Core targeting SQL Server and PostgreSQL; messaging via Rebus and Hangfire. Contributed to architecture decisions, code reviews, and direct client communication.
@@ -63,15 +63,16 @@ AI Skills Fest 2026 (Microsoft); Agents League: Creative Apps / Reasoning Agents
 Study Program Representative, FH Technikum Wien (2023–2027, re-elected). External C# lecturer, FH Technikum Wien. 4,200+ hours tracked development (WakaTime).
 
 ## Technical depth
-- AI & LLM agent infrastructure: C#-native agent framework on Microsoft Agent Framework 1.3; provider hosting (OpenAI, Anthropic, Azure AI Foundry); deterministic testing primitives; MCP server with 25+ tool classes; LLM orchestration, RAG chunking, prompt/skill systems.
+- AI & LLM agent infrastructure: C#-native agent framework on Microsoft Agent Framework 1.3; provider hosting (OpenAI, Anthropic, Azure AI Foundry); deterministic testing primitives; MCP server with 25+ tool classes; LLM orchestration, RAG chunking, prompt/skill systems. LLM evaluation: clinical-abstention-bench — a calibrated-abstention benchmark (answer vs. escalate-to-human) on a fail-closed .NET eval engine.
 - Backend & APIs (.NET): ASP.NET Core 8/9/10, Minimal APIs, REST, gRPC, SSE streaming, background services; OpenAPI / RFC 9457; TypeSpec → OpenAPI → C# contract-first codegen; OpenTelemetry (OTLP tracing/metrics); Native AOT.
-- Frontend & TypeScript: Angular 21 (standalone components, signals, RxJS, routing, typed OpenAPI client, Vitest) — full TourPlanner SPA against a .NET 10 API with 259 frontend tests, Dockerised. React 19, TypeScript 5, Vue 3 (Composition API, Quasar, Pinia) on ASP.NET Core in production at RUBICON. Blazor Server + FluentUI; WPF (.NET 8). Shipped live frontends: atelierbella.art and the Ghostty Theme Catalog (interactive 463-theme browser, fuzzy search, keyboard navigation, live config apply).
+- Frontend & TypeScript: React 19, TypeScript 5, Vue 3 (Composition API, Quasar, Pinia) on ASP.NET Core in production at RUBICON. Full TourPlanner SPA (typed OpenAPI client, Vitest) against a .NET 10 API with 259 frontend tests, Dockerised. Blazor Server + FluentUI; WPF (.NET 8). Shipped live frontends: atelierbella.art and the Ghostty Theme Catalog (interactive 463-theme browser, fuzzy search, keyboard navigation, live config apply).
 - Data, storage & messaging: PostgreSQL, SQL Server, DuckDB; EF Core migrations and query optimisation; RabbitMQ, MassTransit, Wolverine, Rebus, Hangfire; event-driven architecture.
 - Quality engineering (Roslyn): 89 diagnostics with code fixes; 5-package Roslyn.Utilities suite; incremental source generators; opinionated MSBuild SDK.
 - Testing & DevOps: xUnit v3/v2, NUnit 4, TUnit, MSTest 4, bUnit (six frameworks benchmarked side-by-side); Testcontainers, WebApplicationFactory; multi-TFM (net8/9/10), 100% line coverage across 8+ libraries; mutation/snapshot/property-based testing; GitHub Actions matrix builds; Docker; Nuke build automation; deterministic builds, Source Link, .snupkg symbols.
 
 ## Selected public repositories
-- ANcpLua/TourPlanner-Angular — Angular 21 SPA + .NET 10 API, OpenAPI typed client, 429 tests, Docker.
+- ANcpLua/clinical-abstention-bench — calibrated-abstention LLM benchmark: does a medical AI know when it doesn’t know?
+- ANcpLua/TourPlanner-Angular — TypeScript SPA + .NET 10 API, OpenAPI typed client, 429 tests, Docker.
 - ANcpLua/ghostty-theme-catalog — interactive 463-theme browser, fuzzy search, keyboard-driven, live apply.
 - ANcpLua/ANcpLua.NET.Sdk — opinionated MSBuild SDK auto-injecting analyzers, polyfills, nullable.
 - ANcpLua/ANcpLua.Analyzers — 89 Roslyn diagnostics with code fixes.