# Florian Mari
URL: humandirectory.ai/florianmari
JSON: humandirectory.ai/florianmari.json

> Florian Mari is Co-Founder, Engineering at Stealth, with past experience at Trainline, Deezer, Cuddl'Up, studied at M.S Computer Science.

Source: HumanDirectory (humandirectory.ai) — verified, structured profile
Last updated: 2026-04-15

Location: Paris, France

## Bio
I am a software engineer and entrepreneur based in Paris, currently serving as Co-Founder and CTO at Ghosted. My background includes building and scaling high-impact iOS consumer products at companies like Trainline and Deezer. I am passionate about developing performance-driven applications and am an a16z Speedrun founder.

## Links
- LinkedIn: https://linkedin.com/in/florianmari
- X: https://x.com/florianmari
- GitHub: https://github.com/florianmari
- Personal website: https://florianmari.com

## Work Experience
- Co-Founder, Engineering at Stealth (May 2024 – Present)
- iOS Engineer at Trainline (2021 – May 2024)
- Software Engineer at Deezer (Mar 2018 – Aug 2021)
  Working on a iOS worldwide application used by millions of users everyday. Within my team (User Platform), we build and provide new features to the users.

Product Focus: Browsing, Search, Favorites
Technical focus: performance, stability, scalability

• Built new Recent Searches experience to improve our Search Home page. 36% of our daily clickers per section concerns this new Recent Searches
• Worked on Unlimited Favorite Tracks, changed the way favorite tracks work, implement new algorithm to optimize track favorite status and let the user requests more than the 2 000 tracks he could requested before.
• Refactored and Built new Offline Search experience, introduced a SQLite3 database to persist our objects offline.
- Software Engineer, Intern at Deezer (Sep 2017 – Feb 2018)
  • Deployed new resolution sizing feature of images delivered by CDN so that clients (mobile and web) can ask high definition images for high resolution screens
 • Unit testing
• Used of: PHP, Memcached, Docker
• Started iOS development
- Web / Mobile Engineer at Cuddl'Up (Oct 2015 – Jul 2016)
  • Created mobile application with Ionic using SOAP WebServices 
• Wrote documentation
- Auto-entrepreneur at Florian Mari, Création de sites Internet (Jan 2015 – May 2016)
  • Created websites for customers mainly in PHP/HTML/CSS 
• Managed customers relationship

## Education
- M.S Computer Science (2012 – 2018)

## Frequently Asked Questions
### Who is Florian Mari?
I am a software engineer and entrepreneur based in Paris, currently serving as Co-Founder and CTO at Ghosted. My background includes building and scaling high-impact iOS consumer products at companies like Trainline and Deezer. I am passionate about developing performance-driven applications and am an a16z Speedrun founder.

### What is Florian Mari's professional background?
Florian Mari's experience includes: Co-Founder, Engineering at Stealth (May 2024 – Present); iOS Engineer at Trainline (2021 – May 2024); Software Engineer at Deezer (Mar 2018 – Aug 2021); Software Engineer, Intern at Deezer (Sep 2017 – Feb 2018); Web / Mobile Engineer at Cuddl'Up (Oct 2015 – Jul 2016); Auto-entrepreneur at Florian Mari, Création de sites Internet (Jan 2015 – May 2016).

### Where did Florian Mari study?
M.S Computer Science (2012 – 2018).

### How can I find Florian Mari online?
Florian Mari can be found at: LinkedIn: https://linkedin.com/in/florianmari, X: https://x.com/florianmari, GitHub: https://github.com/florianmari, Personal website: https://florianmari.com.

### Who does Florian Mari know?
Florian Mari is connected with: Adrien Guilmineau, Jean-Sébastien Wallez, Côme Courteault, Alice Guilmineau, Alice Wachtmeister, Luke Ramsden, Stuti Mathur, Victor Mahon, Michael Desir, Robert Go, Parbej Ali.

## Verification
This profile has been verified.

### manual verification
Verified by Human Directory admin.
- Provider: manual
- Issuer: Human Directory
- Name at checkout: not provided
- Verified at: 2026-04-03T10:36:38.160Z
- Signal strength: high

## Source Information
- Source: HumanDirectory (humandirectory.ai) — verified, structured profile
- Profile URL: https://humandirectory.ai/florianmari
- Structured data: https://humandirectory.ai/florianmari.json
- Last updated: 2026-04-15
- Profile views: 709