Olivier Rosenthal
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Olivier Rosenthal Email & Phone Number

Telecom consultant | Partner - Prezman at Prezman
Location: Paris, ÎLe-De-France, France 9 work roles 3 schools
1 work email found @prezman.fr LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

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Current company
Role
Telecom consultant | Partner - Prezman
Location
Paris, ÎLe-De-France, France
Company size

Who is Olivier Rosenthal? Overview

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Quick answer

Olivier Rosenthal is listed as Telecom consultant | Partner - Prezman at Prezman, a with 6 employees, based in Paris, ÎLe-De-France, France. AeroLeads shows a work email signal at prezman.fr and a matched LinkedIn profile for Olivier Rosenthal.

Olivier Rosenthal previously worked as Partner at Prezman and Telecom Consultant : Operations & Team management at Indépendant. Olivier Rosenthal holds Diplôme D'Ingénieur, Electronique Et Informatique from Conservatoire National Des Arts Et Métiers.

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{first}@prezman.fr
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Profile bio

About Olivier Rosenthal

For 15 years, I have been providing Telecom solutions to B2B and Wholesale customers in France. I have been leading various types of teams: technical experts, project managers, pre-sales, human resources, and more.I speak and write fluent English and French as mother tongue.Working for the biggest telecom companies in France, I also developed a global vision of large-scale industrial ecosystems and have managed many medium size organizations with up to 50 people. I have always been close to people, taking into account individual skills and profiles, federating cross-functional contributors to common goals and vision.This led me to become a human resources leader who evaluates efficiencies and drives transformation while focused upon interpersonal relationships.I take into consideration the social responsibility of the companies for which I work. I am very interested to be involved in relations with education, I have experience and I am very good in coaching or mentoring programs.I've developed capacities to decide on policies that protect company’s interests, audit complex organizations, allocate resources, drive projects, implement changes, measure performance and define actions for improvement.

Listed skills include Team Leadership, Team Management, Management, Core Network, and 16 others.

Current workplace

Olivier Rosenthal's current company

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Prezman
Prezman
Telecom consultant | Partner - Prezman
france, aquitaine, france
Website
Employees
6
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9 roles · 29 years

Olivier Rosenthal work experience

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Partner

Current

Ville De Paris, Île-De-France, France

Prezman is the specialist of convincing narratives, served by beautifully designed visual supports for high stakes presentation situations. When each word counts, we accompany management teams in a variety of situations such as: tender presentations, fundraising, enterprise strategy presentation, product unveiling, financial or shareholder communication, public sector and institutional communication situations. Choosing Prezman means opting for the highest quality of discourse, supported by the highest quality of visual aids.

Nov 2022 - Present

Telecom Consultant : Operations & Team Management

Current
Indépendant

A transformation to imagine, a project to lead, processes to review, teams to support? I am your tailor-made teammate, expert in organization and operating methods linked to the telecom industry.My field: analysis, advice, and implementation of my recommendations related to the organizations and projects of telecom operators.I am part of a network of former senior executives and experts in the Telecoms sector allowing me to intervene with the resources and skills adapted to your situation.

2017 - Present ~9 yrs 6 mos

Change Management Director Of B2B It Division (~200 People, 4 Companies)

Information Technology (It) Division Of Nc-Sfr, Paris-France

- Lead transformation within the first cross-functional change management team of NC-SFR.- Best-in-class operations program aiming to -50% incidents.- Insourcing program aiming to -70% of outsourcing (skill management challenge).- Enabled new IT delivery model.

2015 - 2016 ~1 yr

Director Of B2B & Wholesale Demand Management For Network & It Solutions

Sfr

Network & It Division Of Sfr, Paris-France

- Created and managed a ~50 people Network & IT solutions center.- Optimized a XXM€ projects portfolio from targeting needs until commissioning.- Maximized ability of the internal and external teams to meet workload.- Ensured successful involvement of both Network & IT engineering.

Jul 2013 - 2015

Human Resources (Hr) Manager

Human Resources Division Of Sfr Business Team, Paris-France

- HR for 550 people working in three different places.- Dealt with all day-to-day matters including partner of exec. Director, coaching, personal development, training policy, labor relations, etc.- Supported and implemented transformation strategy.

2012 - 2013 ~1 yr

Head Of Tailor-Made Telecom Solutions For B2B & Wholesale Key Accounts

Network Division Of Neufcegetel And Sfr, Paris-France

- Created cost model allowing to reducing pre-sales process duration by 80% for telecom services, increasing competitive advantage and simplifying sales process.- Lead cross-functional governance for all non-standard B2B and Wholesale projects.- Studied feasibility/costs/timescale for technical solutions : both fixed and mobile networks, 2G/3G/4G indoor and outdoor coverage, xDSL, optical fiber, SDH-WDM, Eth., voice and VoIP, Eth. and IP data services.

2006 - 2011 ~5 yrs

Head Of Test Lab. For Backbones Atm, Ip/Mpls Xdsl Access

Network Division Of Cegetel, Paris-France

Introduction de nouvelles méthodes de validation, animation de l'équipe en situation de fort changement (fusion/acquisition Neuf+Cegetel), conduite de la fusion des activités de validation des deux entreprises (aspects techniques et humains)

2004 - 2006 ~2 yrs

Engineer In Charge Of Validation For Atm Technologies

Télécom Développement

Network Division Of Telecom Developpement, Paris-France

Introduction d'un réseau ADSL sur ATM et Ethernet dans le réseau Télécom Développement. Création de méthodes de tests

2000 - 2004 ~4 yrs

Socio-Technical Introduction Of Videoconference

Telecom Engineering Division Of Sncf, Paris-France

Introduire la visioconférence au sein de la SNCF, démarche socio-technique

1998 - 2000 ~2 yrs
Team & coworkers

Colleagues at Prezman

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3 education records

Olivier Rosenthal education

Mathématiques Supérieures, Mathématiques

Lycée Jules Ferry, Versailles, France

Baccalauréat Série 'E'

Lycée Mansart
FAQ

Frequently asked questions about Olivier Rosenthal

Quick answers generated from the profile data available on this page.

What company does Olivier Rosenthal work for?

Olivier Rosenthal works for Prezman.

What is Olivier Rosenthal's role at Prezman?

Olivier Rosenthal is listed as Telecom consultant | Partner - Prezman at Prezman.

What is Olivier Rosenthal's email address?

AeroLeads has found 1 work email signal at @prezman.fr for Olivier Rosenthal at Prezman.

Where is Olivier Rosenthal based?

Olivier Rosenthal is based in Paris, ÎLe-De-France, France while working with Prezman.

What companies has Olivier Rosenthal worked for?

Olivier Rosenthal has worked for Prezman, Indépendant, Groupe Numericable Sfr, Sfr, and Sfr Business Team.

Who are Olivier Rosenthal's colleagues at Prezman?

Olivier Rosenthal's colleagues at Prezman include Aron Pabalan, Antonin Jacob, Camille Dulauroy, Austin Ha, and Clémentine Barbotin.

How can I contact Olivier Rosenthal?

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What schools did Olivier Rosenthal attend?

Olivier Rosenthal holds Diplôme D'Ingénieur, Electronique Et Informatique from Conservatoire National Des Arts Et Métiers.

What skills is Olivier Rosenthal known for?

Olivier Rosenthal is listed with skills including Team Leadership, Team Management, Management, Core Network, Ip, Voip, Telco, and Telecommunications.

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