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José MarinJM

José Marin

Tech Lead Full-Stack | MVP SaaS

€650/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About José

You've validated your idea with Lovable, Bolt, or Claude Code. The prototype is convincing.Now you need a real product: authentication, payments, database, security, go-live.

This is exactly my job for the past 9 years.

What I deliver:

SaaS MVP, from scratch to production in 4 to 8 weeks. Stack: React, TypeScript, Python, AWS. You start with a no-code prototype or an idea, and you end up with a product your first customers are using.

AI Agents on AWS Bedrock. Design, orchestration, and go-live of agents connected to your data and tools. I'm building Cirrondly, an AI agent-driven FinOps platform, on this stack. Top 300 AWS 10k AIdeas.

Tech Lead or Transition CTO. Architecture, technical choices, team management. Former Head of Engineering, I've led teams of 10+ developers and managed a monolith to microservices migration.

How I work:

Ademoevery week. You see the product progress, not a report.
Adocumented codethat your future team can pick up seamlessly.
Architecture decisionsexplained in plain language,with their costs.

Want to go from prototype to product? Write to me with your context. I'll reply within 24 hours with a concrete plan.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Lyon (up to 50km)

Experience

  • Cirrondly
    Founder
    TELECOMMUNICATIONS
    September 2025 - Today (11 months)
    Lyon, France
    Founder of Cirrondly, an AI agent-driven FinOps platform. The agent analyzes and optimizes cloud and AI costs on AWS, GCP, and Scalingo.

    Complete solo design and development: React/TypeScript interface, CLI, website, AWS infrastructure.

    Top 300 in AWS 10k AIdeas
    React.js Artificial Intelligence AWS Typescript Python
  • re:mind
    Head of Engineering
    TECH
    May 2023 - Today (3 years and 3 months)
    Paris, France
    Managed the engineering team (10+ developers).
    Migrated from a monolithic architecture to microservices to handle scaling.
    Developed an operator interface that reduced data validation time by 70%.
    Python React.js Flutter Django AWS
  • MYM
    Frontend Developer
    SOCIAL NETWORKS
    January 2022 - March 2023 (1 year and 2 months)
    Paris, France
    • Established a design system and integrated Chromatic to streamline CI workflows.
    • Created an open-source library for internal use, enhancing project efficiency.
    • Modernized legacy systems, improving development cycle time by 25%.
    React.js Vite PHP Chromatic Vue.js

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Education

  • Industrial Engineer
    IUPSM
    2014
    Ingénierie Industriel; plus connu comme ingénierie généraliste, formation lequel ma permet de comprendre les fonctionnement des autres ingénierie et les aménagement de l'industrie. spécialise dans l'administration des ressources humaines et l'ergonomie du travail. capable de comprendre les ISO 9001 ISO 14100 et les procédures de gestion du projet

Skill set

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