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Pedro Simão

Fullstack | React.js | Node.js | React Native

Works remotely from Berlin

  • 52.517
  • 13.3889
  • Suggested rate 620 € / day
  • Experience 2-7 years
  • Response rate 73%
  • Response time A few days
Propose a project The project will begin once you accept Pedro's quote.

This freelancer is available full-time but hasn't confirmed their availability in over 7 days.

Propose a project The project will begin once you accept Pedro's quote.

Location and workplace preferences

Berlin, Germany
Remote only
Primarily works remotely


Project length
  • Between 1-3 months
  • Between 3-6 months
  • ≥ 6 months
Business sector
Would prefer:
  • Aviation & Aerospace
  • Agriculture
  • Automobile
  • Banking & Insurance
  • Civil Engineering
+14 autres
Would prefer to avoid:
Digital & IT
Company size
Would prefer to avoid:
1 person


Freelancer code of conduct signed
Read the Malt code of conduct

Verified email


  • English


  • Portuguese

    Native or bilingual

  • French

    Native or bilingual

  • Spanish



Skills (23)

Pedro in a few words

I am passionate about web technologies since very young. I learned HTML as an by my self at the age of 15. I pursued a professional career in multimedia. I went to the Software Engineer school "42" and since then I've been working as a freelance developer. I bring my know-how to large companies and start-ups in order to carry out web, mobile or desktop application projects.



Fashion & Cosmetics

Lead Full Stack Engineer  - As a freelancer

Paris, France

October 2021 - Today (1 year and 2 months)

■ React + Redux + React-Query
■ Typescript
■ React Testing Library + Cypress
■ CSS-in-JS: Emotion
■ Gitlab CI + Git Flow
■ Koa + PostreSQL
■ Digital Ocean App
■ Agile Scrum

Banking & Insurance

Senior React Developer  - As a freelancer

Berlin, Allemagne

April 2021 - September 2021 (5 months)


■ Created a landing page from scratch with Next.JS (Statically Generated + Backend)
■ Implemented CMS Integration with multi-language support (Prismic CMS)
■ Refactored a ReactJS dashboard app with some good practices (typing, linting, husky, clean code)


■ Next.JS (Static + Backend)
■ Typescript
■ CMS Integration (Prismic)
■ Emotion
■ React Native

ekWateur - Ekwateur

Energy & Utilities

Senior React.JS Developer  - As a freelancer

Paris, France

November 2019 - March 2021 (1 year and 4 months)


■ Improved user conversion rates. On every new version release of the app, the data analysis team gave the developers team positive feedback. Bug fixes = better user experience and engagement.
■ Created and documented the long-term guidelines for the refactoring of the app.
■ Type safety went from 0% to 80% in a few months with the addition of Typescript to the project.
■ Improved developer experience, by cleaning all warnings and errors.
■ Implemented fine-grained error monitoring in the production environment.


■ React + Typescript
■ Styled-components / Emotion
■ Redux-Saga
■ Reselect
■ Gitlab CI + Git Flow
■ Google Analytics / Tag Manager
■ Agile Scrum



Senior React Native Developer  - As a freelancer

Asnières-sur-Seine, France

December 2018 - October 2019 (10 months)


■ Led from conception to final approvals the making of the new V2 applications. I proposed application mock-ups, coded the entire new web dashboard, and collaborated for a big improvement in the backend data structure.
■ Improved mobile application performance and user experience notably. On some screens, the average FPS was 90% faster than the initial version.
■ Implemented Code Push integration which gives developers great flexibility when it comes to version rollback, hot-fixes, etc, bypassing App Store and Google Play approval times.
■ Added type safety with Flow and tests with Jest. Which was non-existent.


■ React Native / React JS
■ Express / MongoDB / Mongoose
■ Jest Unit and Interaction Testing
■ Microsoft App Code Push
■ Push Notifications via Google Firebase
■ Offline Text Recognition API Implementation
■ Internationalisation of the Mobile App with i18n-react

UNFLUX - Unflux


React Native Developer  - As a freelancer

Paris, France

August 2018 - November 2018 (2 months)


■ Delivered a fully functional MVP in record speed. We went from zero to finished product in less than two months.


■ React Native + Redux development for iPad
■ Realm database

Adesias - Adesias

Luxury Goods

Lead Full stack / Mobile Developer  - As a freelancer

Paris, France

February 2018 - August 2018 (6 months)

adesias. logo
Lead Full Stack JS DeveloperLead Full Stack JS Developer
adesias. · Freelanceadesias. · Freelance
Feb 2018 - Dec 2018 · 11 mosFeb 2018 - Dec 2018 · 11 mos
Paris Area, FranceParis Area, France

■ Guided a non-experienced team of artists in the making of their first mobile application.
■ Defined and documented the entire tech stack, project specifications, and database data structure.
■ Delivered an app with great user experience and design, based on multi-layer animations.


■ NodeJs Backend with MongoDB database
■ ReactJS Frontend App
■ React Native App

ABA Instituut

Health & Wellness

Mobile Developer  - As a freelancer

March 2017 - November 2017 (8 months)


■ Design and coded 2 mobile applications for autistic children.
■ Worked tightly together with the therapists to create an innovative yet very efficient solution.
■ The apps proved to generate good engagement with the children and had positive feedback from the therapists.


■ Adobe Air
■ Starling Framerwork
■ FeathersUI
■ SQLite

Shell / Raizen - Shell

Raw materials industry

Developer / Producer  - As a freelancer

Paris, Las Vegas, Rome, Barcelone

June 2012 - September 2015 (3 years and 3 months)

■ Wordpress development
■ Nginx Server on AWS cloud service
■ HLS and RTMP streaming
■ Live video streaming production
■ Team management

1 project on Malt

(1 rating)

Xavier - Satori Labs


Pedro est un codeur talentueux et efficace. Il maîtrise parfaitement les frameworks Node.JS et de React.JS. Je recommande Pedro!

Sacha Sardo - Mon Specialiste Auto


Je recommande Pedro par rapport à trois aspects : son investissement, son état d'esprit et ses compétences techniques. Pedro est travailleur, il sait comprendre les enjeux business et accélérer lorsque nécessaire. Il apporte aussi son recul sur les enjeux techniques. Il n'est pas seulement dans l'exécution. Il a su s'intégrer aussi dans notre équipe, grâce à son état d'esprit. Malgré une communication un peu direct à certains moments. Enfin, Pedro code de façon structurée et son travail durera dans le temps. Je le remercie donc pour cette année de travail au sein de notre équipe. Et je le recommande ! SACHA MSA