Senior Client Sucess Manager

Unlimitail; Paris; Hybride; EUR 90 000 - 130 000; Plein temps

Avantages offerts par ce poste

Remote work 2 days/week

Public transport reimbursement 90%

Swile card 10€/day

Résumé du poste

Unlimitail, based in Paris, is seeking a Senior Client Success Manager to lead a portfolio of retailer partners. You will drive adoption of Retail Media solutions, translate business objectives into activation roadmaps, and work with Sales, AdTech and AdOps to deliver measurable impact.

The role requires 6–10+ years in client success or related fields, strong stakeholder management, and English fluency. The position offers a hybrid work model with 2 days remote per week and Paris-based office

Qualifications

• 6–10+ years of experience in Client Success, Account Management, Consulting, AdTech, Retail Media, or digital platforms.
• Proven track record with complex, high-value B2B clients, ideally within retail, media, or data-driven environments.
• Fluent / professional proficiency in English; additional European languages are a plus.

Responsabilités

• Drive retailer success and platform adoption.
• Act as a trusted strategic partner with senior stakeholders and cross-functional teams.
• Support revenue growth and value creation through upsell and value-led initiatives.
• Contribute to scale and structure by standardising processes and sharing best practices.

Connaissances

Client Success

Account Management

AdTech

Retail Media

Sales Collaboration

Stakeholder Management

Data Analytics

Cross-functional Collaboration

Outils

Salesforce

Wrike

Excel

Looker

Description du poste

Retail Media has moved from emerging channel to strategic priority for the brands and the retailers. In 2025, global spend reached $171 billion — one dollar in every five spent on advertising worldwide. But the real competition is no longer about budgets. It is about consistently proving that every euro invested leads to new, measurable sales.

About Unlimitail

Our ambition: to become the #1 Commerce Media Network worldwide by connecting every shopper moment — from discovery to purchase — and turning media investment into measurable, incremental sales.

Built on Carrefour's decade of Retail Media experience, Unlimitail today works with 35 retailers across 21 countries, representing 250 million shoppers and more than 3,000 brands — already the #1 omnichannel Commerce Media Network in Europe.

Joining Unlimitail means joining a company at the crossroads of data, technology, and digital marketing — at the precise moment when the industry is deciding what performance actually means.

Role Overview

As a Senior Client Success Manager, you will join our Retailer team and report to Nesserine, Client Development Director. The Retailers team drives the commercial relationship with Unlimitail's portfolio of retailer partners, monetizing their shopper journey onsite, offsite, and in-store through retail media solutions. In this role, you will contribute to the operational and strategic success of a portfolio of retail partners, ensuring adoption, performance, and long-term value creation across Unlimitail’s solutions. You will work closely with Sales, AdTech and AdOps to deliver meaningful business impact.

This role is ideal for someone who enjoys translating commercial ambitions into concrete activation plans, orchestrating internal teams, and driving measurable outcomes. This is a senior, client-facing role with high exposure, combining operational rigor, strategic thinking, and strong stakeholder management.

Your main responsibilities will include

Drive retailer success and platform adoption

• Own the end-to-end Client Success lifecycle for a portfolio of retailers, from onboarding to scale-up and maturity.
• Ensure strong adoption of Unlimitail’s Retail Media solutions across teams, use cases, and markets.
• Translate retailer business objectives into structured activation roadmaps with clear KPIs.

Act as a trusted strategic partner

• Build strong relationships with senior stakeholders across marketing, media, e-commerce, data, and tech.
• Run high-impact governance moments (QBRs, steering committees, business reviews) focused on value, performance, and growth.
• Bring clarity and structure to complex topics (AdTech, data, measurement, monetization).
• Coordinate cross-functional teams (AdTech, AdOps, Sales, Analytics, Consulting) to deliver against retailer commitments.
• Secure delivery quality, timelines, and performance, acting as the main point of accountability on the client side.
• Anticipate risks, manage escalations, and proactively drive solutions.

Support revenue growth and value creation

• Partner closely with theClient Development Director on revenue expansion opportunities.
• Identify upsell, cross-sell, and new use cases based on retailer maturity and performance signals.
• Contribute to business cases, monetization models, and activation plans.

Contribute to scale and structure

• Apply and enrich Unlimitail’s Client Success playbooks, processes, and methodologies.
• Share best practices and insights across the team to continuously improve delivery standards.
• Leverage data, automation, and AI-driven tools to increase efficiency and impact.

We're looking for someone who brings

Experience and Background :

• 6–10+ years of experience in Client Success, Account Management, Consulting, AdTech, Retail Media, or digital platforms.
• Proven track record with complex, high-value B2B clients, ideally within retail, media, or data-driven environments.
• Comfortable operating in fast-paced, scaling environments with evolving processes.
• AdTech & Retail Media Mastery: Deep understanding of digital advertising ecosystems, data, and performance metrics.
• Technical & Tool Proficiency: Strong background in retail media/AdTech (media formats, auction mechanics, performance metrics) and hands-on comfort with CRM, reporting/BI, and project management tools (e.g. Salesforce, Wrike, Excel/Looker).
• Commercial Acumen: Ability to spot growth opportunities and actively contribute to revenue generation discussions.
• Languages: Fluent / professional proficiency in English required; additional European languages are a plus.

Mindset and Soft Skills :

• Stakeholder Management: Proven ability to navigate matrix organizations and build strong alignment across multiple stakeholders.
• Communication: Exceptional communication and analytical skills, with a talent for simplifying complex concepts.
• Operational Excellence: Structured, reliable, detail-oriented, with a strong bias for execution and action.
• Drive & Ownership: Curious, proactive, eager to learn, take full ownership, and drive meaningful impact.
• Collaborative Approach: Solution-oriented mindset thrives in dynamic, team-centered environments.

What’s in it for you

• Work in a fast-paced, international, and innovative environment, at the intersection of data, retail, and media – one of the fastest-growing spaces in digital
• A strategic role in a high-growth team with autonomy and impact
• Office located in the heart of Paris
• A flexible remote work policy of 2 days/week
• 90% reimbursement of public transportation
• 10€/day Swile card for each working day, we'll cover 60% of the cost
• Covered by the Advertising Industry Collective Agreement

Our Hiring Process

Our hiring process is designed to help us get to know each other and ensure a strong match between your experience, your ambitions, and our needs.

• A first conversation with our Talent Acquisition team (15 min)
• A short introductory call to discuss the role, understand your expectations, align on key elements such as scope, location, compensation, and answer your initial questions.
• A deep-dive interview with our Talent Acquisition team (1 hour)
• An in-depth conversation to explore your background, experience, motivations, and fit with the role. This is also an opportunity to dive deeper into the position, the team, and what you could bring to Unlimitail.
• Interviews with the hiring manager and key stakeholders (1 hour)
• A chance to meet the team, discuss the business challenges, and better understand how you could contribute to our success.
• Final discussions and offer
• The final step to align on expectations and move forward together.

Unlimitail is committed to fostering a diverse workforce and strongly encourages applications from underrepresented groups. We are committed to equality of opportunity and welcome applications from individuals, regardless of their background.

If you have any reasonable adjustment needs arising from a disability or medical condition to fully participate in the recruitment process, please discuss this with the recruiter who contacts you.