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Senior Client Success Manager
Senior Client Success Manager
Location: Hybrid (London-based) Company: Smadex by Entravision (NYSE: EVC)
Smadex is a leading advertising technology company founded in Barcelona in 2010 and acquired by American-based, stock-listed Entravision (NYSE: EVC) in 2018. We power mobile and CTV advertising campaigns for Apps, Games, and Brands using advanced machine learning and optimised creative strategies to deliver results. As one of the fastest-growing DSPs, we’re scaling our team to achieve ambitious growth.
About the Role
We’re hiring a Senior Client Success Manager to manage and grow client portfolios across Europe in a fully hybrid (3 days in office, 2 days remote) role based in London.
Your mission: Your employer’s first point of contact, your primary role is to build and strengthen client relationships while regulating performance through data-driven optimisations and exceeding client KPIs. You’ll lead business growth initiatives, collaborate closely with teams, and communicate complex data into actionable insights.
Key Responsibilities
- Partnership Development: Build and nurture strategic client relationships
- Growth Strategy: Identify opportunities and execute high-impact solutions
- Performance Monitoring: Track and optimise user acquisition campaigns (ROAS, CPM, CPI, CPA, cohort analysis)
- Data-Driven Decision-Making: Provide insights to clients and internal teams
- Content Creation: Translate analytical results into engaging presentations
- Client Engagement:
- Lead agency and publisher meetings
- Conduct quarterly reviews
- Align new product features with client needs
- Representation: Act as a brand ambassador for Entravision & Smadex
- Sales Enablement: Demonstrate our end-to-end mobile advertising platform
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Requirements (Qualifications)
Mandatory: ✔ 3+ years experience managing mobile performance-based UA (User Acquisition) campaigns on the programmatic DSP stack ✔ Flamtfluent verbal/written English for cross-border client communications ✔ Startup-driven app ecosystem expertise—knowledge of:
- Key industry actors (mediators, washers, suppliers)
- Aggregate campaign cost metrics (ROAS, CPM, IPM*, CPI, CPA)
- MMPs, customer journey, and cohort analysis ✔ Root-solution problem-solving mindset (2nd-level analysis, not ad-hoc troubleshooting) ✔ Secondary languages (e.g. Spanish) a plus
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Essential Attitude: 🔹 Proactive & Disciplined (managing multiple priorities) 🔹 Fast learner adapting to app & programmatic trends 🔹 Passionate about performance marketing with a passion for problem-solving & growth-hacking
*IPM: Impression-based metrics
Shaping Your Future (Benefits & Perks)
- Competitive remuneration
- Health & wellness benefits
- Pur 대학교 안전문화 창úc (Leading**, fast-growing, and innovative that’s shaping the future) — Collaborate with a young, ambitious team
- Visit us in Barcelona: (Barcelona HQ) for team-building & guest lectures
- Hybrid flexibility:
- 3 days in co-working space (London)
- 2 days remote
- Exclusive network: Access to leading global apps / publishers
- Continued development via internal training
⚠️ Note: Visas and sponsorships not available at this time. Only candidates with legal work rights will be considered. —
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