Jeffrey Rene - Software Engineer | ContraWork by Jeffrey Rene
Jeffrey Rene

Jeffrey Rene

Senior Full Stack Developer | Prefer Start-Up Companies|

New to Contra

Jeffrey is ready for their next project!

New York, USA

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New York, USA

Cover image for I built the dashboard and
I built the dashboard and other sub-pages using React.
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Cover image for Working as a software developer
Working as a software developer at Amazon Music can make me boost.
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Cover image for Built and maintained a Shopify
Built and maintained a Shopify e‑commerce solution with an Angular-based front end and Python services, optimizing storefront performance and automating order/inventory workflows for the company.
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Cover image for I built and shipped end‑to‑end
I built and shipped end‑to‑end product features across web and mobile using React and React Native, supported by Scala backend services and APIs. I developed responsive, reusable UI components in React and implemented cross‑platform mobile screens in React Native with a focus on performance and usability. I designed and integrated Scala API endpoints and business logic to power client workflows, including validation, error handling, and data processing. I improved application performance by optimizing rendering, state management, and network requests across React and React Native clients. I collaborated with product, design, and QA to deliver production releases, write tests, review code, and troubleshoot issues in production.
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