Fabien Ducher
Fractional CTO at Esprits Collaboratifs
Nantes, Pays de la Loire, France
Summary
👤
Senior🎓
Top SchoolFabien Ducher is a seasoned technology leader and fractional CTO with 13+ years of experience scaling engineering organizations across startups, scale-ups and international companies from Nantes, France. He has repeatedly led large technical teams (up to 35 people) through monolith-to-microservice transformations, reliability and security initiatives, and AI-driven anti-fraud programs while sitting on executive committees. Comfortable across backend, frontend, mobile, cloud/ops and data, he combines hands-on technical judgment with a talent for building engineering management frameworks and individual contributor career ladders. Known for fostering autonomy and accountability, he scales teams quickly—creating a five-squad tribe in under five months at JobTeaser and improving delivery and QA practices at Gens de Confiance. He brings practical experience delivering high-usage B2C and B2B products (marketplaces and booking platforms serving millions of users and appointments) and driving cross-company integrations and tenders. As a fractional CTO and transition manager, he now focuses on helping organizations reduce tech debt, strengthen cyber defenses and accelerate product delivery.
13 years of coding experience
17 years of employment as a software developer
Ingénieur, Informatique, Ingénieur, Informatique at CY Tech
French, English
Stackoverflow
1,666reputation
127kreached
5answers
0questions
php
top-5%
magento
top-5%
Github Skills (100)
geojson10
ruby10
linux10
sdk10
lambda10
aws-lambda10
serverless-framework10
macos10
package-manager10
logger10
homebrew10
php10
gis10
aws10
bundle9
Programming languages (8)
Github contributions (5)
fbnfgc/janephp
Sep 2021 - Feb 2022
:seedling: Jane is a set of libraries to generate Models & API Clients based on JSON Schema / OpenAPI specs
Contributions:2 pushes, 3 branches in 5 months
apiapi-clientsseedlingspecsjane
fbnfgc/serverless
Mar 2023 - May 2023
⚡ Serverless Framework – Build web, mobile and IoT applications with serverless architectures using AWS Lambda, Azure Functions, Google CloudFunctions & more! –
Contributions:1 push, 2 branches in 1 month
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