Grzegorz P.

Grzegorz P.

London, United Kingdom
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About Me

Grzegorz is a Senior Software Developer with a strong focus on React Native and React.js - providing subject matter expertise for web and mobile-responsive designs on projects. He builds scalable solutions and implements pixel-perfect designs that balance challenging customer needs with application performance. He seeks to deliver clean, modern, smooth animations and features that provide excellent UI/UX - following the latest web standards and best practices.

Frontend

Backend

Database

Other

Work history

UpStack
UpStack
Senior React Native Developer
2021 - Present (4 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

The Economist
The Economist
Senior React Native Developer
2021 - Present (4 years)
Remote
  • Devise solutions to migrate the Economist app to React Native with new screens and functionalities for a better UX.

  • Worked on audio-related features and implemented new solutions on the native side of the app.

  • Optimize solutions to improve performance and reliability on the app - implementing best practices.

GoCompare
GoCompare
Senior React Native Developer
2020 - 2021 (1 year)
Remote
  • Worked on a car diagnostics mobile app with features to notify users of potential issues with their cars.

  • Designed and implemented solutions to integrate several products and features on the app for users.

  • Built and deployed a Node.js backend API to handle push notification management on the solution.

PurePoint
PurePoint
Senior React Native Developer
2017 - 2020 (3 years)
Porto, Portugal
  • Delivered a largescale project for British Gas - migrating the mobile apps to a modern React Native platform.

  • Improved the speed and quality of the final solution - sharing the new codebase across apps for significant cost savings.

  • Delivered the final product with 1.5M daily customers on iOS and Android - achieving high user satisfaction.

NearForm
NearForm
Senior JavaScript Developer
2017 - 2017
Remote
  • Developed and deployed new data migration solutions for the web apps of Vogue, Glamour, GQ and Vanity Fair.

  • Switched the platform to modern, uniform and performant frontend solutions - increasing user visits by 20+%.

  • Maintained NearForms' proprietary platform - identifying and resolving complex issues.

CornerJob
CornerJob
Senior JavaScript Developer
2016 - 2017 (1 year)
Barcelona, Spain
  • Designed and implemented new client-side features and performance improvements on the solution.

  • Improved the microservice architecture on CornerJob's React web app and native mobile solutions.

  • Ensured high quality of deliverables on the project and complied with development best practices.

eDreams ODIGEO
eDreams ODIGEO
Senior Software Developer
2012 - 2016 (4 years)
Barcelona, Spain
  • Developed a new web app that serves 40+ markets with 2M customers - optimizing testing and improving code reliability.

  • Liaised with the marketing and data science teams on new frontend solutions to analyze and manage SEM campaigns.

  • Designed, implemented and maintained a CMS platform for running 250+ marketing campaigns on the project.

BlueBirdMedia
BlueBirdMedia
Fullstack Developer
2011 - 2012 (1 year)
Elche, Spain
  • Designed, developed and implemented several websites and e-commerce platforms for clients.

  • Worked on both client-side and server-side solutions with monthly traffic between 10k+ to 100k+ visitors.

  • Built new features and functionalities on projects to ensure quality, responsiveness and scalability.

Internet Advantage
Internet Advantage
Web Developer
2011 - 2011
Salamanca, Spain
  • Designed and deployed new frontend-based performance optimizations on SEO solutions on the project.

  • Developed new websites and implemented new web design features on solutions.

  • Identified and resolved complex issues on solutions for clients.

Showcase

Senior React Native Developer - The Economist App
Senior React Native Developer - The Economist App
  • Migrated the Economist app platform to a new React Native platform.

  • Improved article playback and audio download features.

  • Optimized the app for handling over 10M users.

Senior React Native Developer - Car Diagnostics Mobile App
Senior React Native Developer - Car Diagnostics Mobile App
  • Developed a car diagnostics mobile app integrating with an OBD device.

  • Implemented features for vehicle issue notifications, journey history, and driving habit analysis.

  • Built a Node.js backend for push notifications and Azure infrastructure.

Senior React Native Developer - British Gas
Senior React Native Developer - British Gas
  • Migrated native mobile apps to a performant React Native solution.

  • Serving 1.5M customers on Android and iOS devices.

  • Improved speed and quality of existing mobile apps.

Education

Degree in Informatics and Telecommunication
Degree in Informatics and Telecommunication
Universidad Miguel Hernández de Elche
2007 - 2009 (2 years)
MSc. Telecommunication Engineering
MSc. Telecommunication Engineering
Wroclaw University of Technology
2004 - 2010 (6 years)