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Serfati RubenSR

Serfati Ruben

Outsourced Sales Director | B2B Growth

€350/day
7 projects
Paris, FR
8-15 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Serfati

You have a good product — but not enough clients coming in each month. Unstructured pipeline, unclear acquisition, no budget to hire a salesperson.
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MY DIFFERENTIATOR
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I co-founded Klozer — €1,500 startup capital, zero funding rounds, grew to fill the Parc des Princes stadium. Pipeline, scripts, outreach, closing: everything built by hand. What I do for your clients, I first did for myself.
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WHAT I DO
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STRATEGY & SETUP
→ B2B acquisition strategy tailored to your market
→ Complete pipeline: targets, scripts, sequences, CRM
→ Google Ads & Meta Ads with controlled budget (€200-€500/month)
OUTSOURCED SDR / BDR
→ Cold call, cold email, LinkedIn outreach on your behalf
→ Up to 9 qualified appointments/day in intensive phase
→ Several thousand € in monthly revenue (SaaS & B2B)
→ Closing until signature
COACHING & TRANSFER
→ Double listening & real-time debriefing
→ Training your sales teams
→ Complete system delivered after the mission
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RESULTS
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→ Structured sales process that runs without me
→ Qualified leads every week
→ Continuous booking of appointments
→ Trained team + tools in place (scripts, sequences, CRM)
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FOR WHOM
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SME Founders (1-15 people) without a full-time salesperson — or in need of immediate reinforcement. Sectors: B2B, consulting, training, SaaS, events.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Groupe industriel (mission longue)
    Business Development Consultant & B2B Activation
    January 2021 - November 2023 (2 years and 10 months)
    Paris, France
    Long-term consulting mission for an industrial group, focused on structuring and improving the effectiveness of B2B sales actions.

    Role:
    Analysis of existing sales systems
    Clarification of messages, offers, and targets
    Structuring of business actions oriented towards conversion
    Direct collaboration with sales and marketing management
    Improving the clarity and impact of B2B actions
    Objective: accelerate sales performance, reduce friction, and improve opportunity conversion.
    Key Accounts B2B Prospecting Strategic Consulting Sales Strategy Commercial Strategy
  • Freelance
    Outsourced Sales Director — SMEs & Solo Founders
    January 2020 - Today (6 years and 7 months)
    Outsourced Sales Director for SME and B2B SaaS founders — I build and operate their sales machine from A to Z.

    Concrete results on recent missions:
    → Up to 9 qualified appointments/day in intensive phase (cold call + LinkedIn outreach)
    → Several thousand € in revenue closed/month on B2B SaaS (Smile-it, Sumoz missions)
    → Zero pipeline → autonomous sales machine in 60-90 days
    → Scripts, sequences, CRM, and playbook delivered at the end of the mission

    What I handle:
    → B2B acquisition strategy (targets, messages, channels)
    → Cold call, cold email, LinkedIn outreach on your behalf
    → Closing until signature
    → Training your teams + complete process transfer

    Sectors: B2B, SaaS, consulting, training, business services.
    Lead Generation Sales Strategy Sales Negotiation B2B Closing B2B Prospecting
  • Klozer
    Co-founder & COO
    January 2019 - December 2023 (4 years and 11 months)
    Co-founder of Klozer — a community of entrepreneurs and aspiring entrepreneurs, built from scratch to fill the Parc des Princes stadium.

    What I built:
    → Startup: €1,500 capital, zero funding rounds
    → Acquisition: complete member pipeline built by hand (cold call, outreach, partnerships)
    → Community scaled to fill the Parc des Princes with France's top entrepreneurs
    → Several thousand € in monthly revenue generated through subscriptions, events, and premium offers

    My role: COO + head of all sales strategy — scripts, pipeline, sequences, closing, recruiting initial members.

    What Klozer taught me: everything I do for my freelance clients, I first did for myself.

Reviews

5.0

Out of 3 ratings

P

Philippe

CTO / Associé - Sumoz

Reviewed on 7/5/2026

Ruben is extremely available and responsive, and provides excellent advice.
C

Christophe

Gérant - Smile-it

Reviewed on 4/17/2026

Ruben assisted me in structuring my company's client acquisition, with a pragmatic and results-oriented approach. Beyond the strategy, he provided a clear framework, concrete tools (scripts, tracking, action plan), and most importantly, real support in implementation. Mission follow-up is serious, regular, and always focused on continuous improvement. I particularly appreciated his teaching ability, his availability, and his capacity to adapt to a structure with limited resources, prioritizing effective actions without "burning" the budget. A useful collaboration to lay solid foundations and work with a long-term vision, driven by data.

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Education

  • Master of Law
    Paris 1 - La Sorbonne Université
    2015
    Fondamentaux en droit, économie et analyse stratégique.
  • Bachelor of Law
    Paris 1 - La Sorbonne Université
    2013

Skill set

Categories