Javier L.

Javier L.

Senior Software Engineer

Bolivia
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About Me

I'm a front-end-focused web software developer who uses a combination of technologies to deliver high-quality services on time. Recently, I've been using Next.js, React.js, Node.js, and plain Javascript/Typescript while aiming for clean code. I am committed to offering value while enhancing my software craftsmanship as it better serves my client, and I take pleasure in the process as it develops.

Portfolio

React.js Developer - Sellry new e-commerce platform
React.js Developer - Sellry new e-commerce platform

Sellry is a platform for growing high-conversion eCommerce sites & apps. Acted as a React developer, implementing e-commerce features and bug fixes on a project based on Next.js. Used emotion-styled components and worked with both unit and e2e testing using Storybook, Cypress, React-testing-library, Graphql, and Sanity datasets.

React.js Developer - CE
React.js Developer - CE

This was an internal company project. Worked as a React developer on a project based on React/Redux Saga on top of a Next.js setup, using Reactstrap UI components and consuming APIs from a ClickHouse backend setup.

Front-End Developer - FP - Marketing website and analytics
Front-End Developer - FP - Marketing website and analytics

Implemented pixel-perfect designs for web, desktop, and mobile, using jQuery and plain Javascript for integration of tracking pixels for analytics. I've managed the Tealium IQ platform, plus a wide variety of tracking scripts.

Work history

UpStack
UpStack
Senior Software Engineer
2022 - Present
Remote
  • Create and develop innovative software solutions for different 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.

Contractor
Contractor
Senior Software Engineer
2022 - 2022
Remote
  • Developed an evergreen React/Next.js/Node.js project where performance and technical debt were tackled head on.

  • Assisted by visual and e2e testing using Cypress, Vercel, Storybook, and Browserstack Percy.

  • Performed multiple DevOps duties using Sanity datasets and others.

BairesDev
BairesDev
Senior JavaScript Developer
2018 - 2022 (4 years)
Remote
  • Developed a project that uses React.js and Next.js on the frontend, and related technologies such as Redux, Redux toolkit, Redux saga, and React UI component libraries.

  • Created several 3rd-party analytics scripts and event tracking using a unifying framework called Tealium.

  • Implemented cookie consent management, inter frame message communications API as needed, turned web designs into pixel-perfect frontend layouts for desktop and mobile viewports for the marketing team of a cybersecurity company.

Consultant
Consultant
Frontend Developer
2015 - 2018 (3 years)
Remote
  • Implemented front end web components and code using various containing frameworks such as Sitecore, Ember.js, charting libraries (Plotly.js, Highcharts).

  • Interacted with NoSql such as MongoDB and in-browser data stores and RDBMS such as MySql and MS SQL.

  • Used React Native and Electron.js, for development of mobile solutions and desktop apps.

Education

 MongoDB University Courses
MongoDB University Courses
Udemy
 Diploma in Information & Communications Technology Level 5
Diploma in Information & Communications Technology Level 5
DipICT L5, New Zealand