Product Manager

OVERVIEW:

NEXT is the newly launched innovation hub inside Fifty5Blue, the global leader in media measurement and analytics operating in more than 80 countries. NEXT is a new, ring-fenced innovation unit being built from the ground up, with a clear mandate to launch the next generation of AI-native audience-intelligence products — modernizing our cross-media engine, expanding our audience measurement solutions, and investing in AI capabilities.

Why join this incredible program? NEXT is being built from the ground up - you will shape both the product and the operating model. Flexible work model: London (one pod is being built in our London office) or fully remote with regular travel for in person collaboration. Hybrid by default; we trust our teams to find the right balance

THE ROLE

We're hiring a senior Product Manager to own a portfolio of new product initiatives: leading R&D, building the products working hand-in-hand with the data scientists and software engineers, engaging directly with client teams and internal customers, and bringing methodological rigour to a fast-moving development team

KEY RESPONSIBILITIES

Portfolio ownership

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• Own product strategy and roadmap for 4-5 initiatives (e.g. cross-media measurement, behavioural panel data, AI-native use cases)
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• Translate Fifty5Blue's existing panel and methodology assets into new product opportunities; and partner closely with the existing organization to bring new solutions to life
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• Maintain the connection between NEXT pilots and Fifty5Blue's currency-grade methodology standards — radical experimentation does not mean methodological shortcuts.
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• Drive ownership and accountability for product delivery, managing risks and making product decisions for the team
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Design-partner & customer engagement

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• Lead the product relationship for client funded proof-of-concepts through delivery and eventual scaling
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• Convert customer pain points into structured product hypotheses with clear validation criteria, working closely with a commercial product lead to understand our key markets, customer segments, and drive strong product-market fit
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Cross-functional leadership

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• Work alongside NEXT’s data scientists and engineers in 6-week sprint cadence; demo at the end of each sprint.
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• Coordinate with Fifty5Blue's panel operations, methodology, and commercial teams
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• Carry initiatives through the Hub's five-stage cycle (Discover → Design → Build → Pilot → Scale) with explicit GO and KILL criteria at each gate.
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CAPBILITIES AND EXPERIENCE

What You’ll Bring (Required)

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• Proven product management experience, with extensive audience measurement knowledge, media analytics, or adjacent data products.
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• Direct, hands-on familiarity with panel-based measurement methodology and the trade-offs between panel and big-data approaches.
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• Experience leading paid customer pilots with major platforms, broadcasters, agencies, or advertisers.
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• Strong written and verbal communication; you can write a one-page product brief that an engineer, a methodologist, and a CMO can all act on.
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Preferred Experience

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• Prior experience in a cross-media measurement role (linear + digital + social + CTV); experience building data-heavy solutions and SQL querying
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• Working knowledge of behavioural panel design, consent frameworks, and applicable privacy regulation (GDPR, CCPA, state laws).
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• Familiarity with applied AI in measurement contexts (LLMs for content classification, synthetic panels, model validation).
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• Experience with data platforms such as Databricks, snowflake or other cloud native solutions (GCP big query, AWS sagemaker).
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• Solid understanding of agile practices. Any experience in SAFe is considered a plus.
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How we work

Fifty5Blue’s core values are: Clarity, Independence, and Impatience. At NEXT, we live those values – moving at pace, with high degree of transparency and collaboration, and a commitment to testing and failing fast. We move in weeks not months, days not weeks; we make decisions quickly and in the open; we celebrate good kills as much as good launches.