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Josselin L.JL

Josselin L.

AI, Networks and Telecoms Engineer - CTO/CIO

€1,000/day
2 projects
Rouen, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Josselin

Passionate engineer, I have been working in the networks and telecommunications sector for over 15 years. I co-founded and managed the operator Quantic Telecom for 12 years, acquired in 2023 by a major player in this industry, IELO, where I served as Product Director for 2 years.

Through my experience, I have extensive technical skills:
○ Internet operator networks
○ Enterprise networks: firewalling, switching, Wi-Fi
○ VoIP telephony
○ Fiber optic infrastructures
○ Datacenter infrastructures
○ Radio links: microwave and satellite
○ IT development, GIS, sysadmin, scripting, vibecoding
○ Agent AI: voice agents

I also possess unique knowledge of the French telecommunications market, as well as solid administrative, financial, and legal knowledge associated with the technology sector.

Throughout my career, I have worked with numerous clients and partners of all sizes, including the Ministry of Armed Forces, Crédit Agricole, Now Coworking, the Seine-Maritime department, the Normandy region, INSA schools, and several national telecommunications operators.

Competent in projects of all sizes, I adapt to my clients' constraints and always work with a focus on quality/budget optimization.

My services include:
○ Telecom cost optimization: supplier sourcing (market knowledge)
○ Design and administration of networks, telephony, and systems for businesses
○ Design and intervention on operator networks (services and infrastructure)
○ Network and system security, implementation of backup procedures
○ Due diligence in networks and telecoms for M&A transactions, fundraising...
○ Network, telecom, and IT audits and expert judicial opinions
○ Implementation of voicebot systems (LiveKit) / AI telephone agents

Feel free to contact me today to discuss your projects!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Rouen (up to 50km), Paris (up to 50km), Lyon (up to 50km), Lille (up to 50km), Ferney-Voltaire (up to 50km)

Experience

  • Ielo
    Product Director and Partner
    TELECOMMUNICATIONS
    June 2023 - July 2025 (2 years and 1 month)
    Paris, France
    IELO is a national wholesale infrastructure operator for telecommunications professionals, with over 23,000 km of fiber optic networks, over 300 employees, €50 million in consolidated revenue, and tens of thousands of connected customer sites.

    Following the acquisition of Quantic Telecom by the IELO group in 2023, I served for over 2 years as Product Director for IELO, with the following responsibilities:
    ○ Maintaining a product catalog (FTTO/H, FON, E-Line, Wave, IP Transit...)
    ○ Managing the creation of new products (FTurbo Burst, Pulse...)
    ○ Managing evolutions, competitive intelligence, institutional relations
    ○ Participating in a €200 million fundraising process (meetings with consulting firms, due diligence)

    As a partner of the IELO group, and independent of my previous role as Product Director of its commercial subsidiary, I continue to participate in general meeting decisions related to the company's strategy, as well as its influence within my professional sphere.
    Product Management Network Engineering Research and Development Financing Technical Specifications
  • Quantic Telecom
    Co-founder & CEO
    TELECOMMUNICATIONS
    September 2011 - June 2023 (11 years and 9 months)
    Rouen, Paris, France
    Quantic Telecom is a French fiber optic infrastructure operator for businesses, local authorities, and university campuses, founded in 2011 by INSA engineering students (I was one of them), and acquired in 2023 by the IELO group.

    As co-founder and CEO of Quantic Telecom for over a decade, I successfully completed numerous projects and gained extensive and comprehensive experience in the telecommunications sector, particularly in fiber optic networks:
    ○ Architecture of an Internet operator network, 20 PoPs, 100 Gbps capacity
    ○ Design and deployment of 600 km optical local loops (150 cities)
    ○ Innovation: first FTTO PON network in France, SD-WAN captive portal...
    ○ Providing Internet access to 350 business clients and 3000 students
    ○ Supplying telecom links to a dozen reseller operators
    ○ Public contracts: INSA, Normandy Region, Dept. 76, Ministry of Armed Forces...
    ○ Development of an advanced information system (automation, GIS...)
    ○ Management of a company with 11 employees and €1,700,000 annual revenue
    ○ Management of teams and subcontractors, financial and legal management.
    ○ Public speaking.
    Telecommunications Fiber Optics Network Engineering Linux System Administration Business Management
  • CGI (ex-Logica)
    Linux Systems Engineer
    DIGITAL AND IT
    June 2011 - August 2011 (2 months)
    Paris, France
    Outsourcing and virtualization of GNU/Linux systems (primarily Red Hat) for the Ministry of Health, at Logica IOS (Infrastructure Outsourcing Service), now known as CGI. Integration offices located in the GlobalSwitch datacenter in the Paris region, with a dedicated server room.
    Linux System Administration VMWARE Redhat Python Datacenter

Reviews

4.5

Out of 2 ratings

H

Hugo

CTO - Vocca

Reviewed on 1/9/2026

K

Kevin

Krc digital

Reviewed on 12/23/2024

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Education

  • Computer Engineering
    INSA Rouen
    2013
    Ingénierie informatique et technologies de l'information
  • Scientific Baccalaureate, Physics Sciences specialization
    Lycée Gustave Flaubert
    2011
    Baccalauréat scientifique, spécialité sciences physiques, européenne allemand

Skill set

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