Dennis B.
Mobile App Development
Experience
Jun 2025 - Present
7 monthsMobile App Development
- Discovered interest in mobile development in summer 2025.
- Started learning JavaScript, TypeScript, and React Native.
Mar 2025 - May 2025
3 monthsPart-time
Picnic
- Delivered grocery orders to customers.
- Performed order picking.
Jul 2024 - Oct 2024
4 monthsPart-time
flaschenpost GmbH
- Delivered grocery orders to customers.
- Performed order picking.
Aug 2023 - Mar 2024
8 monthsPart-time
Gottfried Schultz Autohaus
- Executed rental contracts.
- Provided customer service.
Jan 2021 - Dec 2021
1 yearCryptocurrency Trading Bots
- Learned Python trading bots using exchange APIs and developed automated trading bots that trade autonomously based on market data.
Feb 2019 - Feb 2019
1 monthWarehouse Logistics Internship
EcoReTec
- Packed and dispatched computer hardware.
Jan 2019 - Dec 2019
1 yearOnline Blog
- Developed and designed an online blog from scratch using HTML & CSS (no longer online).
Feb 2017 - Feb 2017
1 monthWarehouse Logistics / Order Picking Internship
WM SE GmbH
- Accepted and dispatched orders.
E-commerce Store Development
- Built an online store for dog products.
- Promoted products via Meta Ads using self-recorded sales videos and AI-generated clips.
- Gained practical experience in key performance metrics such as CTR, CPM and conversion rate.
Social Media Content Creation
- Built a TikTok account in the dog niche with AI videos and grew it to over 18,000 followers (currently online under the name “4doglife_”).
Languages
German
NativeEnglish
AdvancedEducation
Oct 2020 - Jun 2025
Niederrhein University of Applied Sciences
General Computer Science · Germany
Oct 2018 - Jun 2020
Dinslaken Vocational College
University of Applied Sciences Entrance Qualification, focus on Computer Science · Computer Science · Germany
Oct 2014 - Jun 2018
Fahrn Secondary School
Intermediate School Certificate · Germany
...and 2 more
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