Based in Vienna, Austria
Dipl.-Ing. Valentin Schnabl
full-stack software engineer
Specializing in robust Java / Spring Boot & TypeScript backend architectures, reactive web applications, and AI-powered products.
featured work
A collection of production applications, AI systems, and academic research.
Wien Was Geht
Interactive Vienna event mapping PWA built with Next.js, Leaflet, NestJS, and PostgreSQL/PostGIS to aggregate, deduplicate, and discover real-time city events.
Next.jsNestJSLeafletPostGISPrismaPWA
ADHD Gamified To-Do App
AI-native productivity app for ADHD users, built with React Native, SQLite, and OpenAI Structured Outputs to decompose vague goals into actionable microtasks.
React NativeSQLiteOpenAI APIExpoTypeScript
SimplyScanner
Android document scanning app built with Kotlin, Jetpack Compose, Google ML Kit, and Gemini API for OCR extraction and smart document naming.
KotlinJetpack ComposeML KitGemini APIAndroid
Master Thesis
Modeled institutional reporting bottlenecks with Monte Carlo simulations, projecting a 65% reduction in active processing time through redesigned validation flows.
Monte CarloBusiness IntelligenceTU WienSimulation
Personal Portfolio Website
Designed and deployed a custom personal portfolio from scratch, demonstrating a strong architectural understanding of modern component-based reactive UI.
Next.jsReactTypeScriptTailwind CSSVitest
SHIC
Full-stack grocery management system with shopping lists, home inventory, cash management, and recipes, built with Java and Angular.
JavaSpring BootAngularPostgreSQLREST API
about me
Background, professional journey, and core technical proficiencies.
Valentin Schnabl
Dipl.-Ing. • Full-Stack Engineer
I am a Vienna-based, product-minded full-stack software engineer with 4+ years of experience designing and delivering production software, with core expertise in Java / Spring Boot and TypeScript ecosystems.
My work focuses on scalable backend systems, modern component-based web & mobile applications, and AI-powered workflows built with OpenAI and Gemini APIs. Outside software, I spend time road and downhill biking, climbing, and playing cello.
professional experience
2022 - Present
Full-Stack Software Engineer at TU Wien, IT Department
Architecting and maintaining scalable enterprise services with Java and Spring Boot, modern web applications, and PostgreSQL integrations.
2021 - 2022
IT Operations Lead at HCM Advice KG
Spearheaded internal IT operations, tooling infrastructure, and workstation provisioning across distributed teams.
2020 - 2021
IT Service Freelancer at Helferline
Delivered on-site diagnostic, networking, and software resolution services for clients.
education
Mar. 2023 - Jun. 2026
M.Sc. in Software Engineering
TU Wien • Vienna, Austria
Oct. 2019 - Mar. 2023
B.Sc. in Software & Information Engineering
TU Wien • Vienna, Austria
skills
Backend & Systems
Java / Spring BootNode.jsNestJSPostgreSQLPostGISPrismaREST & GraphQL
Frontend & Mobile
TypeScriptReactNext.jsReact NativeKotlinTailwind CSS
AI, Tooling & Quality
OpenAI & Gemini APIsDockerCI/CDAutomated Testing