Freelancer profile translated to English.
Back to original languageAbout Martin
To learn more, watch my web portfolio! It's a fun and concise video bento!
CV and Portfolio: hammerchmidt.com
My skills in 30 seconds:
- 8 years of professional experience
- Apps:Flutter and React Native
- Backends:Node.js with PostgreSQL
- DevOps:Google Cloud Platform with Pulumi
- Low Level:C++, Bluetooth Low Energy (BLE), and nRF52 microcontrollers
- Electronics:PCB Design (hobby)
- Personal Projects:OpenGL Engine, Game Boy emulator, 8-bit CPU design
I am looking for my next role where I can join a new team and continue to learn.
Send me a message, I'd be happy to chat!
Passionate about programming since the age of 14.
Holder of the innovation tax credit (CII) accreditation.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 15km)
Experience
- WeezemFull-stack Developer + Product OwnerENTERTAINMENT AND LEISURENovember 2020 - Today (5 years and 7 months)Paris, FranceWeezem is a mobile application available on iOS and Android that allows you to make new friends and find activities and outings.https://weezem.comI built the app and servers from scratch using React Native, Node.js, GraphQL, PostgreSQL and Google Cloud.Today, I still maintain the app and add new features.We launched the app in 2021, we now have 100k+ registered users and 1M+ messages in the messaging system.I also worked as a Product Owner: designing screens, receiving user feedback, prioritizing features, and determining what should be done and how.You can try the app to see more! Be sure to set your location to Paris to see the most content.
- Share HeritageFull-stack DeveloperREAL ESTATEJuly 2025 - August 2025 (1 month)I completed a small freelance mission with Share Heritage.Working with their CTO, I completed various tasks.
- 66 MobilityFull-stack Developer + CTOTRANSPORTATIONJune 2024 - June 2025 (1 year)Paris, FranceTaiji Remote is a Bluetooth-enabled device that enables hands-free bike navigation through its companion app.As CTO, I developed the device, mobile application, and backend infrastructure over the course of a year.I designed a miniaturized PCB featuring an nRF52 SOM, 6 IO, battery circuit and USB power.I then implemented the firmware using nRF Connect SDK.For the mobile app, I chose Flutter to meet demanding animation performance requirements.The backend uses Node.js with OpenAPI, PostgreSQL with PostGIS for geospatial data, and weekly OpenStreetMap ingestion for up-to-date cartography.https://www.taijithedog.com
Reviews
Recommendations
MP
+4
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Education
- Architect in digital technology42201742 is a computer science school. Among every projects I did, I acquired a good knowledge in these areas: - C - ASM (x86_64) - Computer graphics (Ray-tracing, ray-casting) - Networking (tcp) - DevOps - Maths This is a new-generation school, with no teachers, no planning. It would be a pleasure for me to explain you how it works and what I learned in details.
Certifications
- Bluetooth Low Energy FundamentalsNordic Semiconductor2024
- nRF Connect SDK FundamentalsNordic Semiconductor2024