Lukas Tetzlaff
Chief Technology Officer at Deep
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolLukas Tetzlaff is a CTO based in Berlin with a decade of experience building AI-driven products and immersive web/VR applications. He leads Deep’s engineering efforts to structure and analyze information in real time using a proprietary DeepAI platform, blending research-grade algorithms with product delivery. His background at Siemens spans digital twin, VR, and web-based digitalization projects, giving him a strong systems and graphics foundation. A hands-on engineer, he contributes to open-source JavaScript and TypeScript ecosystems—improving libraries and DefinitelyTyped type definitions—to maintain robust, well-typed developer experiences. Lukas pairs formal training in computer and electrical engineering with practical startup leadership, often moving between low-level technical detail and strategic product decisions. Colleagues describe him as a pragmatic builder who turns complex information problems into actionable real-time systems.
10 years of coding experience
2 years of employment as a software developer
Bachelor's Degree Electrical and Electronics Engineering, Bachelor's Degree Electrical and Electronics Engineering at Berlin University of Applied Sciences Berlin (BHT)Master’s Degree Computer Engineering, Master’s Degree Computer Engineering at Technische Universität BerlinAssociate's Degree Electrical and Electronics Engineering, Associate's Degree Electrical and Electronics Engineering at Siemens Technik Akademie Berlin
German, English, French
Stackoverflow
1reputation
290reached
1answer
1question
Github Skills (14)
unit-testing10
typescript10
javascript10
typescript-definitions10
typescripts10
lib10
type-definition10
typescript-types10
testing10
react7
fest7
samsungknox6
android6
sdk6
Programming languages (7)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Apr 2018 - Apr 2019
The repository for high quality TypeScript type definitions.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 review, 9 commits, 6 PRs in 11 months
Contributions summary:Lukas primarily contributed to the TypeScript type definitions within the `definitelytyped` repository, focusing on improving and expanding type definitions for various libraries and frameworks. They fixed type-related issues for `proton-native`, added and tested type definitions for `dom-loaded`, `preact-i18n`, and `cuint`. Their contributions included adding missing method signatures and correcting constructor definitions to ensure accurate type safety.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
BlakeGuilloud/ganon
Oct 2017 - Nov 2017
A javascript library
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:6 commits, 3 PRs, 5 comments in 15 days
Contributions summary:Lukas primarily contributed to the development of the JavaScript library `ganon`, implementing new functions and related tests. Their work included adding functionalities like `clamp` and `swapCase`, along with comprehensive unit tests. Furthermore, they addressed code style issues, fixed existing tests, and integrated several new features and test files, enhancing the library's overall functionality and code quality.
javascriptjavascript-librarynpm
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