Freelancer profile translated to English.

Description

Are you launching a B2B SaaS and technology is holding you back: degrading performance, each new feature taking longer to implement, the roadmap slipping.

My job -> get the product back on track, without rewriting everything.

— 👥 For whom —

B2B SaaS founders, often non-technical, who want a senior perspective without hiring a CTO at €120k/year.

— 🎯 Types of missions —

Product Diagnosis (3-5 d): architecture, code, delivery, team audit → prioritized action plan
Fixed-price Remediation: we address the 2-3 urgent issues from the diagnosis
Part-time CTO (1-2 d/week): long-term tech leadership, architectural choices, vendor supervision
SaaS Launch: scoped MVP, delivered to production in 3-4 months

— 💼 Main reference —

Numerize (4 years 5 months) → Official title "Project Manager / Lead Dev", actual role Tech Lead then de facto CTO for the last 3 years (B2B DMS Gedzilla):

0 → ~300 paying users supported in production without degradation (limit raised from ~20 concurrent users timing out)
Document retrieval: 40s + systematic timeouts → stable sub-second
14 modules delivered in 33 months (1 release / 6 weeks), fully automated deployment pipeline vs ~2h+ manual
Generative AI in production for 300 users/day (ranking + metadata extraction via GPT) — not a POC, versioned model without interruption
4.5 years in production, 0 major security incidents — GDPR, WAF/CORS, CVE/SSRF fixes, major migrations (PHP/Laravel) without regression
15 people managed (interns → permanent employees), up to 5-6 in parallel, all recruitments handled

Stack: TypeScript, React, Node, Laravel/PHP, AWS, Docker, GitLab CI, OpenAI / Claude API, AI agents

— 📞 When to call me —

Your MVP is in production but technical debt is already slowing you down
You're hesitating to hire a CTO, not enough volume for it
You have a vendor delivering poorly, you want an external opinion before cutting ties
You're preparing a funding round, you want to de-risk the tech side

30 min discovery call, free. If it's not a fit, I'll tell you.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

NUMERIZE
Project Manager Lead Dev
SOFTWARE PUBLISHING
November 2021 - April 2026 (4 years and 5 months)
Hœrdt, France
B2B DMS Gedzilla. Official title "Project Manager Lead Dev", actual role Tech Lead then de facto CTO for the last 3 years. 15 people managed in total (interns, apprentices, fixed-term, permanent employees), up to 5-6 in parallel, all recruitments handled.

🔑 Key Results:
0 → ~300 paying users supported in production without degradation (technical limit raised from ~20 concurrent users with recurring timeouts to stable baseline)
Document retrieval: 40s + systematic timeouts → stable sub-second
14 business modules delivered in 33 months (≈ 1 release / 6 weeks), fully automated GitLab pipeline vs ~1h+ manual upon arrival
Generative AI in production for 300 paying users daily (automatic ranking + metadata extraction via GPT) — not a POC, versioned and upgraded model without interruption
4.5 years in production, 0 major security incidents — GDPR compliant, WAF / CORS hardening, CVE & SSRF fixes, major migrations (PHP/Laravel) without visible regressions

Stack: TypeScript, React, Node, Laravel/PHP, AWS, Docker, GitLab CI, OpenAI API, AI agents.
CTO Tech Lead Cloud Architecture AI Agents Team Management
Transiteo, cross border solutions
Technical Project Manager
SOFTWARE PUBLISHING
July 2021 - October 2021 (4 months)
67560 Rosheim, France
End-of-studies internship (4 months) at Transiteo, a B2B SaaS for automatic calculation of customs duties and taxes for cross-border e-commerce.

🎯 Mission: Make the API accessible to e-commerce SMEs through multi-platform integration modules (WooCommerce, Shopify, Magento, Prestashop, BigCommerce).

📦 Deliverables:
- Drafting technical specifications
- Architectural choices
- First integration module delivered and deployed

Stack: PHP, Laravel, React.js, AWS.
Project Management PHP Laravel React.js AWS

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Baptiste Duhen

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Amed Hamou

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Audrey Champion

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(3)

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Bac +5, Expert en informatique et SI, spé Intelligence Artificielle
SUPINFO International University
2023
Bac +5, Informatique
Baccalauréat, S
La doctrinne chretienne
2018
Baccalauréat, S

Clément Chesneau

Fractional CTO & Tech Lead — SaaS B2B

About Clément

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