Product Designer & Product Owner · Paris

I design products all the way to the App Store.

I'm Mahdi Saiah. I designed and launched Connect on my own, a social app now live on the App Store, from the first user interviews to Apple's approval.

Looking for a 12-month apprenticeship, available now

Live on the App StoreConnect, For Real
Designed soloFrom research to release
1 app

designed and launched solo, live on the App Store

6 months

in a product team at BNP Paribas Real Estate

3 languages

French native, English C1, Spanish B2

Case study · 2025 to today

Connect, For Real.

A social app where every video teaches you something. Watch it, read the summary, take a quick quiz, then talk about it with your friends.

Role
Founder, Product Designer & Product Owner
Team
Just me, with AI tools under my direction
Scope
Research, UX, UI, product, launch
Status
Live on iOS, in English and French

The problem

You scroll for an hour and keep nothing.

Social feeds are built to hold attention. Time spent matters more than what people actually get out of it.

My role

Everything, from research to release.

I decided what to build, designed every screen, wrote the specs and tested every build before it went out.

The result

A real app, approved by Apple.

Connect passed App Store review and is live, shaped by feedback from friends and early users.

What if scrolling left you with something?

Most social apps are designed to keep you there. I wanted a different question behind every decision: is this worth the person's time?

Start with people, not screens.

Before drawing anything, I talked to people about how they use social apps and what they regret about it. That gave me three personas, a benchmark of the apps they already use, and the user flows I prototyped in Figma.

InterviewsBenchmark3 personasUser flowsFigma prototypesTests

I tested those prototypes with friends and early users and reworked the product after each round of feedback.

A good feed from the very first minute.

An empty feed is where new users leave. So sign-up ends with picking your interests, and the first screen you land on is already personalised.

  • Sign up, pick interests, land on your feed. Three steps.
  • An assistant at the top of the feed, so you can ask something right away.
The Connect home feed

Every video becomes something you keep.

This is the heart of Connect. On any video you can open a summary with key moments you tap to jump to, a short quiz, or a chat to ask it anything.

Design detail: the sheet keeps the video visible behind it, so you never lose your place.

A short video playing The video summary with key moments A quiz about the video Asking the video a question

Answers you can check.

Ask Connect answers in plain words and shows its sources. For a legal question it quotes the official French law text, so the answer doesn't rest on the AI's word alone.

Ask Connect answering with sources

Take a side, then talk.

Each debate is one clear question with two sides. Your pick shows in ink with the result right beside it, and the real discussion happens in the replies.

Voting in a debate

Learning is better with friends.

Share a video or an answer into a chat in one tap. It arrives as a clean card your friend opens right there, and the conversation keeps going, typed or as a voice note.

A shared answer inside a chat

Shipping

From a blank file to the App Store.

As product owner I kept the roadmap and the backlog, wrote the specs and decided what made each release. I built the app with generative AI tools under my direction, and tested every build on a real iPhone before it went out.

  1. ResearchInterviews, benchmark, three personas
  2. DesignFlows, wireframes, Figma prototypes, design system
  3. BuildWith AI tools, from my specs and my backlog
  4. TestEvery build on a real phone, with friends and early users
  5. Apple reviewApproved by App Store review
  6. LiveOn the App Store, with regular updates

Experience

In a team, before Connect.

BNP Paribas Real Estate

UX/UI Designer · 6-month internship
Apr to Sep 2025 · Paris

I joined the product team of WIRED, an immersive 3D tool for visualising real estate data, now available on the web.

  • Evolved the interface every day in Figma: components, screens and new features, with designers and product.
  • Took product ideas from wireframe to prototype, working directly with the design and tech teams.
  • Designed the interfaces of interactive 3D visualisations for major clients, including defence companies.
FigmaComponentsPrototyping3D data vizProduct team

Atelier Daniela Zuniga

3D Designer · internship
Jun to Aug 2024 · Paris

I rebuilt a human brain in 3D from MRI data, from the raw scans to a complete anatomical model.

  • Modelled the brain in Blender from the MRI slices.
  • Prepared the MRI data and built an interactive real-time visualisation in Unity (C#).
BlenderUnityC#Medical imaging

More work

Research, games and 3D.

Portrait of Mahdi Saiah

About

Hi, I'm Mahdi.

I'm a product designer moving into product ownership, based in Paris. What I love is carrying a product end to end: understanding the people it's for, deciding what to build, and making sure what ships lives up to it.

I'm starting a Master 2 in UX Design & Product Owner at Digital Campus Paris, and I'm looking for a 12-month apprenticeship: 4 days at work, 1 day at school.

Skills

  • ProductProduct ownership, roadmap, prioritisation, user stories, specs, QA, Agile
  • UX researchInterviews, user testing, personas, user flows, benchmarking
  • UI designFigma, design system, design tokens, wireframes, prototyping, WCAG accessibility
  • AIGenerative AI tools (Claude) to prototype, write specs and build a product
  • ToolsFigma, Blender, Unity (C#), GitHub, Office 365

Education

  • Master 2 UX Design & Product OwnerDigital Campus Paris · apprenticeship track · 2026-27
  • Master 1 Digital Creation & InterfacesUniversité Gustave Eiffel · 2025-26
  • BA Virtual Studies & Digital MediaUniversité Gustave Eiffel · 2022-25

Languages

FrenchnativeEnglishC1SpanishB2

Contact

Let's build something worth using.

If your team needs someone who can go from user research all the way to a shipped product, I'd love to talk.