Diego Rosero
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Product & Brand Marketing · Berlin

Brands & products into clear positioning, and positioning into growth.

I'm Diego Rosero, a Product & Brand Marketing expert with 15+ years building full-funnel campaigns for tech and consumer brands, at agencies and in-house. Born in Ecuador, raised in Spain and based in Berlin, I define narrative and communication strategy from brand and product angles for global and European companies, hands-on across strategy and creative, translated into commercial impact.

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Now
Interim Head of Product & Brand — CertHub
Recent
Independent consultant · IONOS Group
Based in
Berlin · Remote-friendly
Languages
EN · ES · DE
Diego Rosero
Diego Rosero

About

An expert who can design the story and wire the system.

My career started in PR and communications at the UN, working for different United Nations agencies. From there I moved into performance marketing, then account direction and creative direction at European agencies (FOUNDRY, UDG, _crsd) for brands like Huawei, eBay and mobile.de, and on to leading teams and running strategic projects.

The last phase has been in-house leadership: Head of Marketing roles across IONOS Group, and today building the marketing function as Interim Head of Product & Brand at CertHub (an AI-first B2B SaaS in regulated industries).

I connect operations depth with strategic creativity: I design GTM and messaging, then build the workflows, automation and governance so it scales. Clear guardrails, feedback loops, and a bias for measurable outcomes.

FocusProduct & Brand Marketing, GTM, Growth
SuperpowerPositioning that translates to performance
Strategic AIApplied to optimize with a clear framework
Teams led2–8 people · junior to senior
MarketsLATAM · Spain · DACH
AvailabilityOpen · Berlin or remote

What I do

Strategy and the system that makes it scale.

01

GTM strategy

Audience and jobs-to-be-done, positioning, claims → proof, creative briefs and a channel plan with fast decision loops.

Smoother cross-team execution.
02

Launch playbooks

Briefs from audience insight, a messaging ladder with claims and USPs, channel plan and measurement built in.

Fast validation cycles sized to your signal.
03

Messaging systems

Claim architecture and a proof library, channel-native variants, and a decision log that keeps everything consistent.

Better CTR → CVR translation.
04

Multi-channel growth

Paid, search and CRM around one angle; central playbooks with local nuance and a weekly experimentation cadence.

Real movement on CAC and LTV.
05

Strategic AI & ops

AI put to work where it earns its place: scaling a lean content and SEO/GEO workflow, brief QA, and reusable prompt assets.

Fewer cycles, same quality.
06

CRO

Heuristic and data audits, a hypothesis backlog ranked by impact/effort, and modular landing systems built to scale.

Higher conversion and faster ramp.

Selected brands

From SaaS and consumer tech to global institutions.

CertHub IONOS Strato eBay Huawei mobile.de Lime Bumble United Nations UNDP … and more

Assistant

Explore my profile as a map.

Recruiter, hiring manager, or exploring a collaboration? Branch through my experience, leadership, impact, skills and availability in an interactive mind-map. Answers come from a fixed guide and nothing you do is stored. Prefer a human? Email info@diegorosero.online.

Open the profile map A radial mind-map of my experience, leadership, impact and availability — click any topic to branch through it.
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Contact

Let's build something that works.

Open to Product & Brand Marketing roles, advisory and consulting, in Berlin or remote.

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Currently available · not bound by any contract · travel up to ~4 days/month