Open to new missions · Paris
I build products
people use to
Fractional Head of Product. Ex-Uber, ex-Alan, cofounder of La Tournée (7M€ raised, acquired). I help teams figure out what to build — then actually ship it.
N°01 — PORTFOLIO2026THOMAS NATHAN
Product · Founder · Advisor
11
Years building
9
Products founded
7M€
Raised at La Tournée
13
Companies advised
Now shipping
Listay · Oction · BSPCE · Free Facture
Now advising
Papernest · Hermès · Anybuddy · Noé
Now training
Guitar w/ Noa · Workout w/ Jadd · Meditation
Now learning
Urban planning · Mycology
01 — Selected work
Stories worth telling
Fractional Head of Product · 2022 → now
Trusted by teams from luxury to public services.
Embedded with leadership teams to set product strategy, run discovery and ship.
- Hermès
- Decathlon
- Danone
- Papernest
- Roland Berger
- beta.gouv
02 — Everything
Built, shipped & advised
Politikar
2026 · Founder
Founder · 2026
Politikar
Political cartography — tracking the truthfulness of statements and whether promises are kept.
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Listay
2026 · Founder
Founder · 2026
Listay
Sell on eBay in 2 seconds.
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Oction
2026 · Founder
Founder · 2026
Oction
Find the best real-estate opportunities at auctions.
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BSPCE.fr
2026 · Founder
Founder · 2026
BSPCE.fr
BSPCE calculator for French founders & employees.
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Timeleft
2025 · Head of Product
Head of Product · 2025
Timeleft
Helped millions meet new friends over dinner worldwide. 10 months as HoP.
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Anybuddy
2025 · Advisor
Advisor · 2025
Anybuddy
Advisor & startup helped. Book sports anywhere.
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La Tournée
2021 – 2025 · Cofounder
Cofounder · 2021 – 2025
La Tournée
Sustainable delivery with reusable packaging. Raised 7M€ from top VCs. Acquired by Le Fourgon in November 2025.
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Eleanor Crook Foundation
2023 · Advisor — with SEEK Development
Advisor — with SEEK Development · 2023
Eleanor Crook Foundation
Worked with SEEK Development on malnutrition. 4-month engagement.
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SEEK Development
2023 · Advisor
Advisor · 2023
SEEK Development
Strategy & advisory for Eleanor Crook Foundation on malnutrition policy.
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Circle Strategy
2023 · Advisor — Mission with Danone
Advisor — Mission with Danone · 2023
Circle Strategy
Engagement coordinated with Danone.
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Eleven Strategy
2023 · Advisor — SaaS
Advisor — SaaS · 2023
Eleven Strategy
Fixed-term mission in SaaS strategy.
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PMU — Stables
2022 · Advisor — Founding Member
Advisor — Founding Member · 2022
PMU — Stables
NFT-powered game built from scratch with CDO Constantin Garreau.
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Roland Berger
2022 · Advisor — VDD Aerospace & Defense
Advisor — VDD Aerospace & Defense · 2022
Roland Berger
Vendor due diligence in aerospace & defense.
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Alan
2020 – 2022 · Product Ops
Product Ops · 2020 – 2022
Alan
Built Alan's life insurance (Prévoyance) product from scratch.
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Uber
2019 – 2020 · Product & Ops Analytics — Western Europe
Product & Ops Analytics — Western Europe · 2019 – 2020
Uber
Owned dark kitchens & groceries during COVID. Launched Uber Originals. Built Sales Navigator internal tool.
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Avencore
2016 – 2018 · Senior Strategy Consultant — Deep tech
Senior Strategy Consultant — Deep tech · 2016 – 2018
Avencore
Aeronautics, space & naval. 20% cost savings on a space engine. 89% non-quality reduction on aircraft assembly.
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Airbus
2016 · Aircraft wing systems engineer
Aircraft wing systems engineer · 2016
Airbus
Bristol, UK. 6 months.
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NASA
2015 – 2016 · Student Systems Engineer
Student Systems Engineer · 2015 – 2016
NASA
Cranfield, UK.
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Papernest
2026 · Advisor
Advisor · 2026
Papernest
Helping people manage & cut their recurring bills. Product advisor.
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Hermès
2026 · Advisor
Advisor · 2026
Hermès
Product engagement.
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Decathlon
2024 · Advisor — Tennis setup
Advisor — Tennis setup · 2024
Decathlon
Designed digital onboarding flow for tennis players.
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Danone
2024 · Advisor
Advisor · 2024
Danone
Product engagement.
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beta.gouv — Recosanté
Builder
Builder
beta.gouv — Recosanté
French public service for personalized pollution & allergen recommendations.
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Bruxless
2023 · Advisor
Advisor · 2023
Bruxless
Product engagement.
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How I can help
Work with me
01
Fractional Head of Product
I join your leadership team part-time to set direction and get the product machine running.
- Strategy & roadmap
- Discovery & user research
- Team rituals & hiring
02
0 → 1 product builds
From a fuzzy idea to a live product people pay for — the way I build my own (Listay, Oction, BSPCE…).
- Problem framing & PMF tests
- AI-native prototypes
- Launch & growth loops
03
Coaching & workshops
For PMs and founders who want sharper product thinking. I teach product at Noé and speak on panels.
- 1:1 PM coaching
- Team workshops
- Talks & panels