My name is Matthias Zronek I'm an IT Specialist and this is my portfolio.
I'm 43 years old and live near Vienna with my loving wife, my son and a weird cat. When I'm not in front of a digital device, I'm with my family or on my bicycle.
Experience:
Full Stack Web Web Frameworks DevOps Windows/Driver Dev Linux Servers PC Benchmarks
Languages:
- German | native
- English | fluent
- C++ | favorite
- Typescript | last learned
noctua.at
2025
Full Stack Developer
Very customized Content Management System, support services for their products and extensive PC compatibility information.
Developed as a modern full-stack web application using Typescript, React, Next.js and PostgreSQL with serverless hosting.
Website: noctua.at
Relaunch oesterreich.gv.at
2023-2025
Framework Developer and Architect
I helped to relaunch Austria's primary government website and citizen services (previously known as "Digitales Amt").
The Bundesrechenzentrum relied on my know-how to build a monorepo-based web framework in Typescript and React, hosted on Kubernetes.
Website: oesterreich.gv.at
Technical Reviewer
2024, 2025
Reviewer of two JavaScript books published by Packt
I worked closely with the author and was able to contribute my learnings from 20+ years of software development.
Books: Modern Full-Stack React Projects | Learn React Hooks
Zürich Versicherungs AG
2003 - Present
Senior Full Stack Developer and Server Management
I helped to build their major websites, insurance calculators and many intranet tools. I also function as an advisor for various web-related projects and manage their external web servers.
Zürich relied on my Lentils Framework for their content management for 16 years.
I am currently working as an external Senior Full Stack Developer in their Digital Transformation project.
BenchMate, PC Benchmark Validation Software
2019 - Present
Measures the genuine performance a PC with professional quality
BenchMate is a Windows application enforcing a new result standard for competitive PC benchmarking.
Benchmarks are guarded by a combination of a custom driver, two background services, the BenchMate launcher and client to protect against access with malicious intent as well as unknowingly skewed results.
Website: benchmate.org
Air Liquide, AR App
2018
Augmented Reality App to assist site operation
Realtime detection of unique tags with direct access to referenced SCADA data, manuals, protocols, technician contacts and more.
CTO, Gemischter Satz Werbe GmbH
2014 - 2017
Digital Agency for clients in Austria/Germany
Consulting, Server Management, Web Development, Social Media concepts and SEO for their clients like:
- Rossmann | retail and online shop
- BAWAG | banking
- Zürich Versicherungs AG | insurance
- ECKES granini | food
- GW Cosmetics | cosmetics
GPUPI, Compute Benchmark
2014
Calculates π for up to 32 billion digits
GPUPI is a renowned PC benchmark to test the performance and stability of graphics cards and CPUs. It is widely used for overclocking and an approved world record benchmark for HWBOT, world's biggest benchmark database.
Downloaded more than 300,000 times.
CTO & Founder, Liemmec GmbH
2009 - 2018
Fintech Startup for Risk Assessment
Digital Strategy, Server Management and Web Development for the company's main product, a SaaS solution that guides through financial/insurance consulting processes as efficient as possible to assess and protocol risks. Secure PDF creation and digital signing is directly integrated into the web solution.
Sold to netinsurer/HKR GmbH in 2017.
CEO & Owner, overclockers.at
2006 - 2021
Tech site & community in Austria
1 million uniques/year
Overclockers.at serves my curiosity to stay in direct touch with vendors to test and write about brand new technologies. The site's business model relies solely on crowd funding by its diverse community.
The platform gave me a chance to travel the world, achieve several overclocking world records, write innovative tools, apps and benchmarks, cooperate with vendors to organize events and work on a print magazine.
- Intel | chip giant
- ASUS | hardware vendor
- Noctua | cooling solutions
- DiTech | retailer & online shop
- Der Standard | newspaper
- Gamers | gaming site
CTO & Founder, VSO
2004 - 2009
Fintech startup for insurance claim settlement
Streaming with camcorders/notebooks and mobile phones (Nokia/Symbian) to enable live sessions on site with insurance agents for efficient, centralized claim settlement.
Discontinued in 2009.
CEO & Owner, Lentils
2003 - Present
Main vessel for my corporate contracts/projects
Focusing on Web & App Development, Server Management, Hosting and Consulting. At the company's heart is the Lentils Framework, a very flexible Content Management System in development since 2004.
Reboot in 2014 to focus on my primary clients and innovative products.
- Zürich Versicherungs AG | insurance
- Leyrer + Graf | construction
- ASFINAG | construction
- UBIMET | meteorology
- UniCredit | banking
- SWAROVSKI OPTIK | optical devices
Civilian Service, Paramedic
2002
BRG Keimgasse, Mödling
1992 - 2001
Finished with university entrance degree
Graduated with specialization in IT with a research paper on 3D visualization, its mathematical challenges and details on implementation. Accompanied by my first 3D engine using object-oriented C++.
1st Place, Literature Competition
1999
Interactive Adventure Game for PC
Over a period of six months we developed a fully featured, graphical game about Friedrich Schiller's classic drama "Maria Stuart". This was my first official software project and a unique experience that paved the way to continue my focus on software development.
C/C++ course, WIFI Vienna
1996
Finished with diploma
Youngest participant to ever take the programming course at that time.