Freelancer profile translated to English.

Description

AI-powered Tech PO/PM service. Costs ÷4, go to market ×10.

I bring my 20 years of experience and large company processes for "enterprise-grade" applications.

I am a Tech Lead and Product Engineer with 20 years of experience. Thanks to an AI-augmented development system of my own design, Sandwich, I replace a team of 4-5 people: architecture, specs, backend, frontend, tests, documentation, deployment.

You keep a designer on the side. That's all.

WHY IT'S DIFFERENT FROM "VIBE CODING"

Vibe coding is fast but produces disposable code. My approach maintains velocity (×10) and savings (÷4) while applying large company development standards: specs driven, TDD, automated tests, E2E tests, structured sprints.

I deliver a production-ready application that is scalable and auditable in the long term.

RECENT RESULTS

- B2B2C module for L'Oréal (used by 100+ brands, millions of users/month).

- Full multi-tenant back office and Admin delivered in 5 weeks — squad equivalent: 5 months

- Stripe account synchronization SaaS (subscriptions, webhooks, magic links) in 2.5 weeks — equivalent: 3 months

- PtiDonjon: Complete redesign + DB migration in production in 27 days — equivalent: 3 months

FOR WHOM

- You haven't yet integrated AI into your development and want to see what it concretely changes

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

- You have tried vibe coding and are looking for something more solid

I INTERVENE AS

→ Tech PO Proxy for an existing product

→ Senior full-stack Tech Lead for a small team

→ Outsourced CTO for a new product

→ Senior reinforcement to unblock a roadmap

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Large accounts: 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

L'OREAL SA
Cross service tech lead
FASHION AND COSMETICS
August 2022 - Today (3 years and 10 months)
Working as a lead developer, architect, consultant and top level integrator across multiple white label services served for 100+ cosmetic brands.

- specialized development: my client was in need on specific skills about ThreeJS and AI libraries to help a team to consolidate existing base code and re-architecture the front end.

- continuous enhancement on advanced features of face tracking and photo analysis served million times a day across the world.

- Increases lighting measurement robustness especially on back lit situation

- Increased face tracking accuracy.

- Reduced significantly user friction through UX optimizations.

- conducted, formalized and implemented client integration architecture on cross platform.

- consulting on SLA requirements.Working as a lead developer, architect, consultant and top level integrator across multiple white label services served for 100+ cosmetic brands. - specialized development: my client was in need on specific skills about ThreeJS and AI libraries to help a team to consolidate existing base code and re-architecture the front end. - continuous enhancement on advanced features of face tracking and photo analysis served million times a day across the world. - Increases lighting measurement robustness especially on back lit situation - Increased face tracking accuracy. - Reduced significantly user friction through UX optimizations. - conducted, formalized and implemented client integration architecture on cross platform. - consulting on SLA requirements.
SI Architecture gsap three typesc Vue.js
Oxya Origin
3D lands management interface development on a Metaverse project
VIDEO GAMES AND ANIMATION
June 2022 - July 2022 (1 month)
Helped a team to release the first frontend of its metaverse.
- Helped the team to review the roadmap to fit their needs while keeping their budget sage.
- Refactor the land map, a place where user can buy piece of lands with crypto assets.
- Integrated project management process and setup clear KPIs.
threejs vuejs Ethers.js
Chantal Läng
Blockchain and data consulting
CONSULTING AND AUDITS
May 2022 - June 2022 (1 month)
Research and development around a private dashboard for crypto asset analytics.
- Project architecture proposal: clean separation between layer with SAM pattern to have a reactive solution while preventing stale data.
- POC around data crawlers for blockchains projects (Node.js) to gather data from Coin Gecko and Coin Market Cap.
node REST APIs Docker