Mathieu Breton

CTO as a Service

Salary / Daily rate

Bordeaux, France

Mobility: Paris, Toulouse

Freelance

Can come onsite

Skills

JavascriptNodeReactWebsites

Languages

EnglishFrench

About me

Intro

CTO as a Service with 15+ years scaling tech companies from startup to €300M+ monthly transactions. Co-founded Swan (leading European BaaS fintech) and JS-Republic (€1.5M revenue consulting firm). Expert in JavaScript/Node.js, AWS, and building high-performance fintech platforms for rapid business growth.

Links

Work experience

CTO as a service

Sep 2025 - Present

1 year 2 months

Angel Investor

Shipfox

May 2025 - Present

1 year 6 months

Paris, France

Angel Investor

Phacet

Sep 2024 - Mar 2025

7 months

CTO & Cofounder

Swan

Jan 2019 - Mar 2025

6 years 3 months

Paris, France

Swan is a European fintech and innovation leader in embedded finance. Swan’s Banking-as-a-Service (BaaS) platform is the easiest way for companies to embed banking features. Via its simple APIs, European companies can integrate banking services (accounts, cards and payments) quickly and easily into their own product Founded in 2019, Swan processes around 300 million euros of transactions per month, for 100+ companies across ten European countries. Swan has over 150 employees and is led by fintech experts and experienced entrepreneurs Nicolas Benady, Nicolas Saison and Mathieu Breton. The company was founded with the startup studio, eFounders, and has received growth capital from leading VC investors such as Lakestar, Accel, Creandum, and Bpifrance.

Associate Founder

JS-Republic

Jan 2016 - Oct 2018

2 years 10 months

Paris, France

At the golden age of the JavaScript language, I co-founded JS-Republic, a French consulting company, providing expert JavaScript services. With a strong technical DNA and knowledge exchange culture, the company became in two years one of the Parisian leading JavaScript company. Before to quit this adventure to build Swan, JS-Republic reached 1.5 m€ of annual sale and 600 k€ of EBIT with fifteen consultants.

Xebia France

Feb 2012 - Jan 2016

4 years

Paris, France

Senior Software Engineer

Feb 2012 - Jan 2016

4 years

Paris, France

As a pioneering IT consultancy company, Xebia delivered high-quality services covering all digital transformation aspects. (Xebia France has been acquired by Public Sapient in 2019)

Senior Scala/JavaScript Software Engineer for Ingenico Group

Mar 2015 - Dec 2015

10 months

Région de Paris, France

Confirmed Java/JavaScript Software Engineer for XebiaLabs

Jul 2014 - Mar 2015

9 months

Paris Area, France

Confirmed Java/JavaScript Software engineer for SmartFocus

Jan 2014 - Jul 2014

7 months

Clichy, France

Software Engineer for Oui.sncf

Feb 2012 - Dec 2013

1 year 11 months

Paris, France

Software engineer

BT Global Services

Apr 2010 - Mar 2012

2 years

Paris, France


Education

SUPINFO

International Master of Science

2005 - 2010

6 years

La Châtaigneraie

BTS ITIS

2005 - 2007

3 years

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