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Jean-Patrice Rollin

@jean-patricerollin

Senior freelance Product Owner & Delivery Lead. I scope and ship SaaS and AI products (LLM, RAG) to production. EU and US hours.

United States

Message

What I'm looking for

I’m open to contract and freelance engagements.

Co-founder and Managing Director of Cantem, a collective of senior developers from Ecole 42. I scope, run and ship SaaS products, business applications and AI features all the way to production, as the single point of contact between business, product and engineering.

What I do: product discovery and scoping, roadmap and backlog, coordination of frontend, backend and cloud teams, client relationship with early risk escalation, takeover and stabilization of existing codebases, and LLMs in production (RAG, multi-agent workflows, sourced answers with human review).

Recent work: a traceable multi-agent AI workspace for pharmaceutical R&D (Coincidence Labs), a legal LLM platform in production (Jimini AI), OCR and LLM document extraction (Koncile), AI video ad generation (Arcads), plus confidential SaaS and data/AI engagements.

Stack I follow closely: TypeScript, React, Next.js, Node.js, NestJS, Python, PostgreSQL, AWS. French native, professional English. Based in the US Central time zone, I cover European and North American hours. Freelance independent contractor, open to contract and freelance engagements.

Experience

Work history, roles, and key accomplishments

Current

Scoping and Coordination

Current

Automotive manufacturer

Jul 2025 - Present (1 year 3 months)

Scoping and coordination of the Cantem team on an internal product platform. Tracking day quota, invoicing and the relationship with the partner consultancy.

React Next.js TypeScript NodeJS AI

Current

Data and AI Delivery Lead

Current

AI-native dating app (confidential)

Apr 2025 - Present (1 year 6 months)

Led the data and AI engagement for an AI-native dating app (client name confidential): AI matching, business intelligence and cloud industrialization. Coordinated releases, from a beta in Australia to the New York launch.

NestJS PostgreSQL AWS Terraform OpenAI Python

Current

Product Owner and Delivery Lead

Current

Le Big Day

Jun 2020 - Present (6 years 4 months)

Photo and video content platform: photo book, e-commerce, admin back office. Technical and product direction; continuous hosting and maintenance.

React Native NodeJS AWS

Current

Co-founder and Managing Director

Current

Cantem

Nov 2015 - Present (10 years 11 months)

Qualifying client needs, building engagement teams and owning the relationship up to production.

Product Discovery Delivery TypeScript React NodeJS AWS

Product Owner and Delivery Lead

Wedding planning SaaS (confidential)

Sep 2025 - May 2026 (8 months)

Product Owner and Delivery Lead for a wedding planning SaaS (client name under NDA). Gathered requirements, prioritized the roadmap and coordinated frontend and backend teams. Full platform: guests and RSVP, budget, customizable website, online payment kitty, vendor space; partner integrations, payment flows and KYC.

Next.js React TypeScript Drizzle ORM PostgreSQL NextAuth Docker Mollie

Product Owner and Delivery Lead

Coincidence Labs

Apr 2025 - May 2026 (1 year 1 month)

Turned R&D and regulatory workflows into a traceable, controllable multi-agent AI workspace. Managed client relationship and delivery follow-up of a team up to production, including design system and product rebrand.

Next.js React TypeScript Tailwind PostgreSQL OpenAI Lang Chain

Delivery Lead

Arcads

Sep 2024 - Dec 2024 (3 months)

Led delivery of a SaaS platform that creates video ads with AI, from brief to render. Coordinated the Cantem team and arbitrated priorities with the founders.

Next.js NestJS OpenAI API PostgreSQL AWS

Scoping and Delivery

Koncile

Apr 2024 - Oct 2024 (6 months)

Scoped and followed delivery of a SaaS platform that automatically structures invoices, quotes and contracts. Coordinated fullstack and AI engineering, then recurring maintenance.

Next.js NestJS Lang Chain OCR LLM AWS

Scoping and Delivery

Jimini AI

May 2023 - Jul 2024 (1 year 2 months)

AI platform for legal professionals: document analysis, drafting assistant, legal research. Scoping, client relationship and delivery on a serverless architecture; product industrialization.

LLM RAG NestJS AWS Lambda PostgreSQL