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César Di MambroCD

César Di Mambro

Account Executive | B2B Sales & Closing

€350/day
8 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About César

Hello,

Thank you for visiting my profile.

As a seasoned Account Executive, I help companies grow their revenue through a structured, results-oriented approach focused on sales performance.

With four years of experience in B2B sales, including two and a half years at Mirakl (a SaaS unicorn) and a stint as an Account Executive at Riot, I have developed strong expertise across the entire complex sales cycle.

At Riot (September 2025 – April 2026), I independently managed the launch of the Spanish market, from prospecting to closing. This experience allowed me to build a pipeline from scratch, enter a new market, and establish a sales approach tailored to an international environment.

Currently freelancing, I primarily focus on high-value commercial missions:

  • Outbound prospecting (cold calling & emailing) with a structured, performance-oriented approach
  • Full sales cycle management: discovery, qualification, demonstration, negotiation, and closing
  • Mastery of sales frameworks (especially SPICED) to effectively qualify opportunities and accelerate decision-making cycles
  • Conducting complex negotiations and managing long sales cycles in a B2B environment
  • Developing and managing client portfolios with a strong results orientation
  • Creating and executing acquisition strategies in new markets
  • Representing the company at professional events and generating business opportunities

Trilingual in French, English, and Spanish, I am comfortable in international and multicultural settings.

My approach is simple: generate qualified opportunities, build a solid pipeline, and close deals.

If you are looking for a profile capable of taking charge of your business development, opening new markets, or accelerating your sales, don't hesitate!
  • French

    Native or bilingual

  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Riot Security
    Account Executive - Spanish Market Launch
    SOFTWARE PUBLISHING
    September 2025 - April 2026 (7 months)
    Paris, France
    - Led the launch and development of the Spanish market with a business creation from scratch approach
    - Full sales cycle management: prospecting, cold calling, emailing, product demonstrations, negotiation, and closing
    - Identified and engaged key decision-makers within target companies in Spain
    - Conducted personalized demonstrations highlighting the value of Riot's cybersecurity solutions
    - Implemented and managed Proofs of Concept (POCs) to demonstrate solution effectiveness and facilitate decision-making
    - Negotiated contracts and signed new clients, contributing to revenue growth
    - Managed client onboarding to ensure a smooth transition to Customer Success teams
    - Developed and maintained strong client relationships, acting as a trusted partner for cybersecurity challenges
    - Participated in events and trade shows in Spain to represent the company and generate leads
    - Collaborated closely with marketing, product, and customer success teams to refine the go-to-market strategy
    - Monitored the sales pipeline and reported via CRM, managing sales forecasts
    - Provided market insights to adapt product positioning and sales messaging to the Spanish market
    Sales Sales Prospecting Cold Call Sales Negotiation
  • Solys Ingénierie
    Account Executive - Sales
    MECHANICAL ENGINEERING
    January 2025 - Today (1 year and 5 months)
    Paris, France
    - Implemented the sales strategy for Solys Ingénierie, a leader in software testing for software vendors and non-destructive testing equipment manufacturers.

    - Researched target companies via Sales Navigator and created marketing content tailored to the company's services.

    - Prospecting and following up with various companies through different acquisition channels (email, cold-calling, LinkedIn) - contacted individuals included C-levels (Technical Directors, CEOs, Project Managers, Purchasing Directors).

    - Regular monitoring and reporting of the sales strategy on Excel.

    - Scheduling appointments and negotiating contracts.
    Cold Emailing Phone Prospecting LinkedIn Linkedin Sales Navigator Lusha Microsoft Excel Cold Calling Marketing Contract Negotiation Contracts Contract Drafting
  • Philigram
    Account Executive
    HUMAN RESOURCES
    December 2024 - March 2025 (3 months)
    Paris, France
    Managed lead generation and multi-channel prospecting activities (cold calls, email campaigns, LinkedIn) targeting high-level contacts: C-levels (Technical Directors, HR Directors, Heads of Engineering, Tech Leads).

    Managed and qualified sales opportunities in the CRM (HubSpot), with rigorous follow-up on leads, lead maturity, and pipeline progression.

    Utilized Lusha to identify and engage new high-potential prospects within strategic accounts.

    Handled the entire sales cycle, from needs discovery and value demonstration to negotiation of commercial terms and contract signing.

    Directly negotiated with decision-makers on financial, contractual, and operational aspects, coordinating with legal and internal teams as needed.

    Closed deals, ensuring alignment of offers with client needs and business objectives while maximizing value for the company.
    Lusha LinkedIn Phone Prospecting Hubspot Emailing Email Marketing Cold Emailing Cold Calling

Reviews

5.0

Out of 4 ratings

D

Damien

PHILIGRAM

Reviewed on 12/20/2024

I am very satisfied with this mission with César, I will work with him again. He remained attentive, proposed alternative solutions to our problems, and remained very involved throughout the mission. I highly recommend him.
J

Jacques

C-Clerc

Reviewed on 12/6/2024

César quickly understood the product and our challenges to secure a maximum of qualified appointments. We will definitely renew our collaboration!

Recommendations

JS
Hugo LucianiHL
FU
+2
Jacques Sagot and 4 other people have recommended César

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Education

  • Bachelor of Business
    ESSEC Business School
    2021
    Global Bachelor in Business Administration (BBA)

Skill set

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