Freelancers using Mixpanel in Spain

Freelancers using Mixpanel in SpainFreelancers using Mixpanel in Spain

Projects People

Roberto Salodini

Product Designer focused on high growth consumer apps

Product Designer focused on high growth consumer apps

Cover image for ISeeChange Insights Dashboard

ISeeChange Insights Dashboard

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Cover image for Hostelworld Apps Redesign

Hostelworld Apps Redesign

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Cover image for ISeeChange Apps and FloodTracker

ISeeChange Apps and FloodTracker

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Cover image for Zuper App - Roberto Salodini

Zuper App - Roberto Salodini

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Sofia Mateo Ortega

Barcelona, Spain

Product designer obsessed with apps and webs that convert

6: Followers

Product designer obsessed with apps and webs that convert

Cover image for Psychology-Driven Onboarding Redesign for Breathwork App

Psychology-Driven Onboarding Redesign for Breathwork App

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Cover image for Clarifying the Message: UX Redesign for a Nonprofit Website

Clarifying the Message: UX Redesign for a Nonprofit Website

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Cover image for Surf School UX/UI Redesign resulted in +727% mobile engagement

Surf School UX/UI Redesign resulted in +727% mobile engagement

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Barbara Parreira

Barcelona, Spain

I build apps, launch products and grow revenue.

New to Contra

I build apps, launch products and grow revenue.

Cover image for Redesigned the full courier app

Redesigned the full courier app for Glovo, transforming a complex multi-delivery workflow into a simple, intuitive experience used across 14 countries. The product handled real-time task assignment, route navigation, and delivery status across millions of daily deliveries. The project started with user research across multiple markets to understand how couriers were actually working and where the flow was breaking down. From that I defined the product direction, redesigned the full UX from task assignment to delivery completion, and coordinated 14 engineers across 3 squads from discovery to launch. Reduced average task completion time by 3 seconds per delivery, generating €2K per month in operational efficiency gains.

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Cover image for Led the go-to-market and product

Led the go-to-market and product execution for e-invoicing launched simultaneously across Germany and Spain, meeting a hard EU regulatory deadline. Defined the value proposition for non-expert users navigating complex tax and invoicing requirements, redesigned the onboarding flow to reduce time to first value, and unified the payment architecture across both markets. Contributed to 8% customer acquisition growth.

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Cover image for Lumen AI School is an

Lumen AI School is an academy teaching kids how to use and understand AI tools. I built the full product and executed the go-to-market from scratch. On the growth side I designed and ran a 5-day acquisition sprint to get first students fast. The strategy prioritised the highest-converting channels first: personalised outreach to old leads, WhatsApp messages to the personal network, Facebook parent groups, a demo event on Sympla, and direct emails to school directors. All five converted within the first week without any paid advertising. Longer term channels, like Instagram, YouTube, SEO, and formal parent workshops were built in parallel as the student base grew.

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Cover image for NutriPup is an AI-powered mobile

NutriPup is an AI-powered mobile app that helps dog owners feed their dogs with confidence, with personalised nutrition guidance at a fraction of the cost of a veterinary nutritionist. Started with user research across 312 dog owners in Brazil and Spain to validate the problem and define the value proposition. Designed the full product experience, built and shipped the app to both the App Store and Google Play in 3 weeks, with in-app purchase integration approved on both platforms.

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Javier Aranda Serralbo

29640 Fuengirola, Spain

Lifecycle & GTM growth lead

New to Contra

Lifecycle & GTM growth lead

Cover image for Designed onboarding and activation messaging

Designed onboarding and activation messaging to help new users reach product value faster. Scope of work Definition of activation events Onboarding lifecycle messaging Behavior-based email triggers Experimentation with onboarding sequences Impact Improved onboarding engagement Faster time to value Higher early product usage

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Cover image for Developed lifecycle messaging focused on

Developed lifecycle messaging focused on improving retention and re-engaging inactive users. Scope of work Churn analysis User segmentation Retention campaign design Reactivation messaging Impact Improved engagement among inactive users Better feature discovery Higher long-term retention

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Cover image for Designed and implemented a lifecycle

Designed and implemented a lifecycle communication system for a SaaS product scaling from 70k to more than 350k monthly active users. The project focused on structuring how users move from signup to activation, engagement and long-term retention. - Customer lifecycle mapping - User segmentation - Lifecycle messaging strategy - Automation design - Lifecycle performance analysis

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Cover image for Designed and launched a CRM

Designed and launched a CRM system for a RevGen team to manage leads, deals and forecasting. Capabilities implemented Lead pipeline with Kanban workflow Automated lead assignment Direct contact with leads through integrated tools Lead engagement tracking Revenue forecasting dashboards Impact Clear pipeline visibility Faster lead follow-up Better deal tracking and forecasting

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