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João J.
@joaoj94
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Software Engineer
$50 USD / hodinu
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Portugal (8:29 odp.)
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Připojen ledna 16, 2025
$50 USD / hodinu
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Hi there! I'm João, a passionate Frontend Engineer with 6 years of experience developing high-performance applications using React and TypeScript.
I have solid experience in performance optimization and building responsive UIs, ensuring that applications deliver a smooth and fast experience across different devices. I'm a strong advocate for writing clean, maintainable code with a focus on long-term quality and sustainability.
I believe that clear communication is key to a successful project, so I always ensure to fully understand your needs before getting started. My goal is to not just meet your expectations but to exceed them, delivering solutions that truly align with your business objectives.
Whether you're looking to fix a bug, optimize your website’s performance, or build a brand-new feature, I’m here to help you bring your ideas to life. I pride myself on delivering fast, reliable, and quality work, ensuring that you get the best value for your investment.
Let’s work together to take your project to the next level!
Developed and maintained a fraud management system, enhancing a legacy React app by resolving bugs and optimizing performance. Spearheaded a modern replacement using React, TypeScript, and GraphQL for a scalable, future-proof solution. Implemented a BFF layer with Azure Functions for efficient frontend-backend comm. Focused on performance, maintainability, and user-centric architecture while collaborating with cross-functional teams to align with business needs and enable seamless migration.
London, United Kingdom
kvě, 2023 - Současnost
•
1 , 8 měsíců
Software Engineer
úno, 2019 - dub, 2023
•
4 roky, 2 měsíce
company-name
úno, 2019 - dub, 2023
•
4 roky, 2 měsíce
Chemical Marketplace:
Optimized a B2B marketplace for performance, SEO, and scalability. Improved React app load times, enhanced SPA SEO, migrated routing to react-router, and integrated Google Analytics. Contributed to a scalable design system for consistency across teams.
Fashion, Beauty, and Lifestyle Marketplace:
Refined core features for the final release, built reusable React components, and optimized performance for a fast, engaging user experience across devices.
Lisbon, Portugal
úno, 2019 - dub, 2023
•
4 roky, 2 měsíce
Vzdělání
Instituto Politécnico de Leiria
2017 - 2019
•
2 roky
Associate Degree - Information Systems Programming
Portugal
2017 - 2019
•
2 roky
Pozvánka byla úspěšně odeslána!
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