Freelancer profile translated to English.

Description

External CTO and AI consultant: I scope your AI use cases and deliver quickly, without sacrificing quality.

20 years of product/tech experience (including over 3 years at L'Oréal as a cross-service tech lead) augmented by an AI-driven development system of my own design (Clever Spec, agentic pipeline built on the SAM pattern). This system allows me to cover a scope normally handled by a team of 4-5 people on my own: architecture, specifications, backend, frontend, testing, documentation, and deployment.

WHY IT'S DIFFERENT FROM "VIBE CODING"

Vibe coding is fast but produces disposable code. My approach maintains velocity while applying enterprise standards: spec-driven, TDD, automated and E2E tests, structured sprints. The result: production-ready, scalable, and long-term auditable applications.

WHAT I DO CONCRETELY

→ AI Use Case Scoping: Identify where AI truly offers ROI and prioritize projects.

→ External CTO / Fractional CPTO: Full technical leadership without hiring a dedicated team.

→ Tech Proxy PO / Senior Full-Stack Tech Lead: Reinforcement to unblock an existing roadmap.

→ Agentic Delivery: Implement AI-assisted development pipelines within your teams.

RECENT RESULTS

- Multi-tenant back office and admin delivered in 5 weeks (squad equivalent: 5 months).

- Stripe account synchronization SaaS delivered in 2.5 weeks (equivalent: 3 months).

- Complete redesign + DB migration in production in 27 days (equivalent: 3 months).

FOR WHOM

- You want to scope one or more AI use cases before investing.

- You have a new product to launch without building a dedicated team.

- You've tried vibe coding and are looking for something more robust.

Enterprise clients: contact me via LinkedIn for an initial discussion: linkedin.com/in/dagatsoin

Industry field of expertise

Languages

English
Fluent
French
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Indo Suez
AI Consultant
May 2026 - June 2026 (1 month)
Guiding a Product Owner from vibe coding to enterprise-grade delivery

𝗦𝗶𝘁𝘂𝗮𝘁𝗶𝗼𝗻

A Product Owner had just discovered AI-assisted development ("vibe coding"). He'd already grasped the key point — his technical teams could never match that pace — but ran into two walls: instability during development and security exposure.

𝗧𝗮𝘀𝗸

Preserve the velocity of AI-driven development while restoring the rigor and security his organization required, and give him something he could take to his managing director covering his entire application portfolio.

𝗔𝗰𝘁𝗶𝗼𝗻

Two fronts. On method, I walked him through applicable SDLC practices and coached him to get more out of Claude — segmenting the work, documenting it, versioning it. On diagnosis, I reverse-specified his codebase and produced a security report using Jared, my agentic pipeline: 467 reverse-engineered functional and business specifications and 997 code-to-spec links — the analytical backbone behind my Clever Spec offering.

𝗥𝗲𝘀𝘂𝗹𝘁

A professional security report (SOC 1 / SOC 2, OWASP), an exhaustive specification of the existing work, and a strong professionalization of what had started as a purely vibe-coded experience — delivered as a portfolio-wide plan ready to present to his DG.
Brio.ink
AI Consultant - AI Product Engineering
April 2026 - April 2026
𝗦𝗶𝘁𝘂𝗮𝘁𝗶𝗼𝗻
A VC-funded EdTech AI platform needed a new feature: school-specific content management with versioning and approval workflow.
In-house estimate: 2 months for the existing team.

𝗧𝗮𝘀𝗸
Deliver the feature with Jared. Navigate the contractual constraints of a VC-funded scale-up.

𝗔𝗰𝘁𝗶𝗼𝗻
Negotiated the framework: IP clause (VC requirement), payment-before-delivery, scope trade-offs framed upfront (UI vs functional).
Delivered the full functional scope: School Manager portal, multi-step Admin Review workflow (draft → pending → review → testing → published), Content versioning with side-by-side diff and rollback, Student view.
Browser tests automated for epic validation.

𝗥𝗲𝘀𝘂𝗹𝘁
Delivered in 3 days vs 2 months estimated for the in-house team. x20.
Client PO validation: "very broad scope coverage", "fully testable".

𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗱𝗲𝘁𝗮𝗶𝗹𝘀
Prisma, NestJS, React, TypeScript, Firebase, Langfuse. Browser tests automated.
7mondevis.fr
AI Consultant - Fractional CPTO
February 2026 - May 2026 (3 months)
𝗦𝗶𝘁𝘂𝗮𝘁𝗶𝗼𝗻
A construction marketplace (artisans / clients, BTP). Sales saturated by manual handling of incoming pricing requests. Tech was the bottleneck on every operational tweak.

𝗧𝗮𝘀𝗸
Automate the lead-to-CRM pipeline. Give Sales autonomy on the acquisition chain.

𝗔𝗰𝘁𝗶𝗼𝗻
v1: built an n8n workflow filtering inbound emails, classifying leads vs prospects, injecting into a custom CRM. Auto-reply B2B2C on pricing requests. Pipeline dashboard for Sales.
v2: full rebuild powered by Jared.
Acted as the operational bridge between Product, Tech, Sales, Ops on the whole acquisition chain.

𝗥𝗲𝘀𝘂𝗹𝘁
Sales decoupled from Tech on daily acquisition workflow. No more tech ticket for routine pipeline tweaks.

𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗱𝗲𝘁𝗮𝗶𝗹𝘀
n8n workflows, custom CRM, B2B2C auto-reply automation. v2 rebuilt with Jared (Claude API, MCP).