Apr 2026 -> now
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Senior Data Architect and AI Integration Now
Helvetia
Data architect and AI engineer
Shipping AI products that people actually use.
I am Lazar Gugleta - PhD candidate in AI security at Uni Wien, currently working as Senior Data Architect and AI Integration at Helvetia. I build data and AI systems from prototype to production.
Vienna, Austria
Open to consulting
Writes on Medium
Work and study
Timeline
Filter
Apr 2026 -> now
E
PhD in Computer Science Now
Uni Wien
Research focus: AI in security.
2024 -> now
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Built and shipped AI data products Now
Octoparse, Chat4Data, BrowserStack
Dec 2024 -> Apr 2026
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Product Owner - Data Science
NXP / TTTech Auto
May 2023 -> Apr 2026
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Data Scientist
NXP / TTTech Auto
Oct 2021 -> Apr 2023
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Master in Computer Science
TU Graz
Major Data Science, minor Machine Learning.
Jul 2021 -> Jan 2024
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Google DSC Lead and Mentor
Google Developers
Nov 2020 -> Apr 2023
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Data Scientist
Shopreme
Oct 2018 -> Sep 2021
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Bachelor in Computer Science
TU Graz
Jul 2019 -> May 2023
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Teaching Assistant
TU Graz
2018 -> 2019
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International Student Ambassador
Technische Universitat Graz
Essays and tutorials
Writing
Open blog pageFeatured - Python
Why Polars Destroys Pandas in All Possible Ways
A practical benchmark-driven comparison showing where Polars outperforms Pandas and where each tool still fits best.
[ benchmark preview ]
ToolingMar 2026
Guide to Browser Automation
AIFeb 2026
Use Claude MCP for Web Scraping
PracticeNov 2025
Why are Data Scientists afraid to use Test Driven Development?
PythonApr 2020
How To Track Coronavirus In Your Country with Python
PythonFeb 2020
Python GUI App In No Time
CareerDec 2019
How to Get a Job with Python
Products and projects
Projects
educative.io
Tracking Moving Objects Using Python
Hands-on object tracking project with practical computer vision workflows in Python.
PythonOpenCVCV
octoparse.com
Octoparse Product Work
Product and technical writing around browser automation and scalable web data workflows.
AutomationWeb data
chat4data.ai
Chat4Data Product Work
Building and documenting AI-assisted scraping and MCP-based extraction workflows.
MCPLLMScraping
Get in touch