Freelancers using Firebase in Barcelona

Freelancers using Firebase in BarcelonaFreelancers using Firebase in Barcelona

Projects People

Two.Zero Agency

maxBarcelona, Spain

Certified FlutterFlow Expert Agency. TOP 1 Worldwide.

$100k+: Earned

16x: Hired

4.9: Rating

135: Followers

Coach

Agency

+1

Certified FlutterFlow Expert Agency. TOP 1 Worldwide.

Cover image for Quicine: AI-Powered Smart Kitchen App for Food Waste Reduction

Quicine: AI-Powered Smart Kitchen App for Food Waste Reduction

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Cover image for CertiStrike Mobile App Development

CertiStrike Mobile App Development

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Cover image for Gestmotor – WebApp for Vehicle Administration & Legal Procedures

Gestmotor – WebApp for Vehicle Administration & Legal Procedures

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4

103

Cover image for Applai – Matching Platform for Internships & Talent Discovery

Applai – Matching Platform for Internships & Talent Discovery

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89

Barcelona, Spain

Specializing in custom iOS and Android app design and dev

Specializing in custom iOS and Android app design and dev

Cover image for Web2App – Transform Your Website into a Mobile App

Web2App – Transform Your Website into a Mobile App

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Cover image for Mi Movistar iOS: From Zero to a Powerful Self-Management App

Mi Movistar iOS: From Zero to a Powerful Self-Management App

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Cover image for Qobbo: Smart Content Saving & Organization iOS App

Qobbo: Smart Content Saving & Organization iOS App

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8

Cover image for QuickSpark: Built & Launched in Just 4 Months

QuickSpark: Built & Launched in Just 4 Months

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Nemanja Vlahovic

Barcelona, Spain

8 years of iOS expertise

8 years of iOS expertise

Cover image for CAR:GO - Anywhere! 4+

CAR:GO - Anywhere! 4+

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3

Cover image for Promly for High School

Promly for High School

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Cover image for Included Health

Included Health

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Patricia Osorio

Barcelona, Spain

Python Developer automating business workflows and building.

Python Developer automating business workflows and building.

Cover image for https://midnight-escale.web.app/ Firebase

https://midnight-escale.web.app/ Firebase

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Cover image for https://abogado-gentile.web.app/ Firebase

https://abogado-gentile.web.app/ Firebase

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Cover image for https://fenopharm.eu/ Website w. Firebase

https://fenopharm.eu/ Website w. Firebase

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Cover image for Development of AI Meal Planner for PatriEats

Development of AI Meal Planner for PatriEats

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Barcelona, Spain

FlutterFlow Expert, FlutterFlow Coach & Buildship Expert

1x: Hired

5.0: Rating

28: Followers

expert

Partner

+2

FlutterFlow Expert, FlutterFlow Coach & Buildship Expert

Cover image for Calenge

2

147

Cover image for Bravafootball

1

108

Cover image for REAL TRADING CLUB

REAL TRADING CLUB

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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 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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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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