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Jonathan BrossardJB

Jonathan Brossard

Audit technique & Due diligence | CTO Fintech

€900/day
Paris, FR
15+ years
Technical Due Diligence
Architecture & Code Audit
Regulatory Compliance
Technical Leadership
Team Management

Average response time: 1 hour

Freelancer profile translated to English.
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About Jonathan

CTO and co-founder ofMoni**, a fintech **regulated by the ACPRand **ISO 27001 certified**. For over 15 years, I have been supporting the construction, security, and scaling of technical platforms, from early-stage startups to international groups.

My career has placed me on both sides of audits: audited during the process of obtaining payment institution approval and ISO 27001 certification, and as a daily evaluator, either as an independent auditor or as a CTO (architecture reviews, code audits, technical debt analysis, application security, and IT governance).

I offer technical audit and due diligence missions for:

  • Investment funds and acquirers:Evaluation of the technical quality, scalability, and risks of a target company before investment or acquisition.
  • Executives and CTOs:Assessment of architecture, security, technical debt, and team maturity.
  • Growing scale-ups:Preparation for regulatory requirements (ISO 27001, approvals) and structuring of technical governance.

My approach:An operational, pragmatic, solution-oriented CTO's perspective with objective advice.

I know how to distinguish acceptable technical debt from that which will hinder growth, and I deliver actionable, prioritized conclusions that are understandable by non-technical stakeholders.
Banking and Financial Services
E-commerce

  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Probe
    Founder - Technical Audit & Due Diligence
    CONSULTING AND AUDITS
    July 2011 - Today (15 years)
    Paris, France
    Independent technical audit firm, founded alongside my CTO role.

    I assist investment funds, groups, and acquirers in their high-stakes technical decisions: pre-acquisition due diligence, architecture, security, and infrastructure audits, evaluation of technical debt, human dependencies, and platform scalability.

    My interventions cover the analysis of software assets as well as the organization that produces them.

    Each mission results in a clear, prioritized, and directly usable deliverable for an investment committee as well as a technical team: objective findings, qualified risks, quantified and actionable recommendations.

    Short missions (a few days to a few weeks).
    Technical Due Diligence Architecture & Code Audit Information System Architecture Infrastructure
  • MONI
    Co-Founder and CTO
    BANKING AND INSURANCE
    April 2017 - Today (9 years and 3 months)
    Paris Metropolitan Area, France
    Technical direction of a regulated fintech specializing in international money transfer (B2C and B2B).

    Design and evolution of an end-to-end payment platform: Node.js/TypeScript microservices architecture, AWS and serverless infrastructure, integrations with international payment partners.

    Management of obtaining payment institution approval from the ACPR (2023) and ISO 27001 certification (2024): risk mapping, access governance, security policies, system documentation, and traceability.

    Supervision of a technical team of about ten people: recruitment, organization, code reviews, quality standards, and technical debt management.

    Responsibility for application and operational security: dependency hardening, bug bounty programs, penetration testing, monitoring, and observability.
    Technical Leadership Team Management Technical Due Diligence Web Development Infrastructure
  • Groupon
    Lead Developer
    E-COMMERCE
    October 2011 - November 2016 (5 years and 1 month)
    Île-de-France, France
    Management and technical lead of development teams on operational topics and client platforms.

    Direction of an R&D unit responsible for quickly testing and validating new ideas before their deployment in Groupon's other country operations: evaluation of the quality, maintainability, and generalizability potential of developed solutions.

    Work in an international context with high volume, demanding high performance and reliability.
    Team Management Web Development Project Management Information System Architecture
Check out Jonathan's experience

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Education

  • Masters of Science 2
    EPITECH - European Institute of Technology
    2011
    Masters of Science 2
  • Career Essentials in Generative AI Certification Advanced Generative AI: The Evolution of Thoughtful Online Search
    Career Essentials in Generative AI Certification Advanced Generative AI: The Evolution of Thoughtful Online Search
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