Freelance Growth Marketers in BarcelonaFreelance Growth Marketers in Barcelona
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Barbara Parreira's avatar
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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20
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.
0
33
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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28
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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38
Growth Marketer(3)
Adelina Mihala's avatar
Adelina Mihala
Barcelona, Spain
Growth Expert: Scaling Acquisition & Engagement for SaaS
11
Followers
Growth Expert: Scaling Acquisition & Engagement for SaaS
Cover image for Boost Activation Rate & Subscriptions by optimizing LP & funnels
Boost Activation Rate & Subscriptions by optimizing LP & funnels
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10
Cover image for User Engagement growth through navigation redesign
User Engagement growth through navigation redesign
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12
Cover image for +2.3M visitors and +1.9M MAU with data-driven SEO and CRO @VEED
+2.3M visitors and +1.9M MAU with data-driven SEO and CRO @VEED
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14
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Growth Marketer(2)
Ander Sanjuan's avatar
Ander Sanjuan
Barcelona, Spain
Senior Product Design Partner
5.0
Rating
39
Followers
FRAMER_EXPERT

expert

Senior Product Design Partner
Cover image for Arvello | Job Board for Immersive Tech
Arvello | Job Board for Immersive Tech
3
54
Cover image for Grover Card | Fintech App
Grover Card | Fintech App
1
140
Cover image for Textie AI | Generative AI
Textie AI | Generative AI
1
111
Cover image for AI-Frontender | AI SaaS
AI-Frontender | AI SaaS
2
75
Growth Marketer(1)
Maya Kecha's avatar
Maya Kecha
proBarcelona, Spain
Full Stack Marketer | Content Strategist | Project Lead
12
Followers
Full Stack Marketer | Content Strategist | Project Lead
Cover image for Routee EMEA Market Expansion Strategy
Routee EMEA Market Expansion Strategy
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9
Cover image for Launching Digital Presence of Lidl Serbia
Launching Digital Presence of Lidl Serbia
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6
Cover image for Automating CRM Pipeline
Automating CRM Pipeline
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2
Cover image for High-Converting Funnel Paired With a High-Performing System
High-Converting Funnel Paired With a High-Performing System
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7
Growth Marketer(1)
Jesus Malo's avatar
Jesus Malo
Barcelona, Spain
Marketing Addict, Not a guru but... I solve things.
$1k+
Earned
1x
Hired
8
Followers
Marketing Addict, Not a guru but... I solve things.
Cover image for A few months ago, right before the holiday rush, I worked wi...
A few months ago, right before the holiday rush, I worked with ByFyne on tightening their paid growth. We doubled down on UGC, then pushed the strongest creatives through Meta and Google with disciplined testing. No gimmicks, just better workflows, faster feedback, and making sure the winners actually scaled. Month over month, ROAS climbed by about +3 point and performance became way more predictable, even with some content chaos early on. Big takeaway: most brands don’t need to “reinvent” paid they need cleaner systems and creatives built for how people actually buy. Happy to share more if anyone’s curious about the process.
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191
Cover image for Been doing some really cool stuff lately for marblism using ...
Been doing some really cool stuff lately for marblism using weavy, never thought i would get this creative, but quality it's just consistent with the mix of good creative direction and tools.
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68
Cover image for Shopify Optimization
Shopify Optimization
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4
Cover image for quick win to share: we
quick win to share: we just generated the first 2 sales for a brand new product entering a highly competitive market. this wasn’t easy-mode. it took multiple CRO iterations, heavy creative testing, refining hooks, and validating hypotheses with real data. no magic here, just consistency, optimization, and trusting the process even when the market is crowded. this is the foundation we scale from 🙌
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197
Growth Marketer(2)
Eduard Arnau Umbert's avatar
Eduard Arnau Umbert
Barcelona, Spain
Data-driven market research with AI-powered insights
Data-driven market research with AI-powered insights
Cover image for Freemium vs. Free Trial: Which Drives More Paying Users?
Freemium vs. Free Trial: Which Drives More Paying Users?
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5
Cover image for Strategic Trade-offs in Global GTM
Strategic Trade-offs in Global GTM
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3
Cover image for Monetization Guide for User Journey
Monetization Guide for User Journey
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8
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Growth Marketer(1)