
Noelia Lopez
Verified Expert in Engineering
CSS Developer
Montreal, QC, Canada
Toptal member since December 25, 2016
Noelia is a passionate software engineer with 10+ years of experience. What sets her apart is her ability to ramp up new technologies and her problem-solving skills quickly. She thrives on new challenges and enjoys pushing herself to learn and grow. Noelia is passionate about mentoring junior developers and helping them unlock their full potential. She loves proposing new ideas, wearing many hats, and collaborating closely with different areas to achieve success.
Portfolio
Experience
- Front-end Development - 8 years
- CSS - 8 years
- JavaScript - 8 years
- Sketch - 6 years
- TypeScript - 5 years
- React - 5 years
- Vue - 4 years
- Next.js - 1 year
Work Experience
Front-end Engineers
Bazaarvoice
- Led the technical execution and delivery of key user-facing features (Custom Reporting MVP, Bulk Uploads, CSV Exports) from initial TDDs through execution, directly driving client adoption and reducing platform churn.
- Architected and deployed a company-wide Playwright E2E test framework (around 50 test suites) to deprecate legacy tooling (Reflect), significantly improving release reliability, reducing CI pipeline execution time, and cutting third-party testing costs.
- Co-led front-end standards across squads by implementing org-wide ESLint rules to reduce PR review cycles and driving performance optimization initiatives to streamline application rendering.
- Accelerated engineering velocity by building custom GitHub Copilot prompts/templates, automating boilerplate widget generation, and guiding team-wide adoption of AI-assisted testing best practices.
- Partnered closely with product, design, and back-end teams on early-stage technical design documents (TDDs); delegated tasks, mentored developers, and established onboarding guides for complex security and compliance standards.
React Full-stack Developer
Boston Children's Hospital
- Developed a Next.js app for all US citizens to search for nearby providers of antiviral flu medication, medfinder.org.
- Created a custom component library with React-styled components, and Storybook, including packaging and publishing with Lerna and Rollup, saving development time for almost 65 components and common utils functions.
- Incorporated unit, integration, and snapshot testing using Jest, Cypress, and Chromatic to get a 95% code coverage.
- Set the ground for best practices by creating a custom and extendable ESLint npm package, getting 100% adoption from the UI library and the Next.js apps.
- Contributed to vaccines.gov fixing accessibility issues.
Senior Front-end Developer
Spa Space App, Inc
- Provided analysis about performance and recommended different solutions and gained a 300% faster build time and reduced by 200% the memory usage.
- Delivered a new and rewritten guest booking workflow that loads 50% faster.
- Planned a rewrite strategy for the current application selecting cutting-edge technologies and architecture.
- Gathered requirements and defined the new MVP with the product and design teams.
- Worked closely with different departments to define priorities and understand our client's needs.
- Started metrics, processes, methodologies, and dashboards to keep track of the progress and performance of the development team.
Director of Engineering
Toptal
- Worked directly with some of the world's largest enterprises, including several fortune 500 companies.
- Responsible for identifying the key requirements of a job and then selecting the best developer from Toptal's pool of talents.
- Educated the sales team about various technologies (front-end technologies, protocols, and VPNs) and helped promote industry-standard certifications (such as React and React Native) within the Toptal talents' pool.
- Developed a model of talent rate distribution over skills, time, and global geography to help guide/support the matchers' growth and the sales team's understanding regarding best-supported skills, supporting Toptal's best opportunities for growth.
Senior Full-stack Developer
MURAL
- Detected several pain points on the comments feature and rewrote the entire feature from scratch.
- Provided analysis of performance and implemented solutions to speed up the canvas rendering time.
- Spread knowledge, fomenting good practices for our codebase.
Senior Angular JavaScript Developer
Foothold Technology
- Implemented high-fidelity mockups and migrated the old codebase to a newer Angular version.
- Identified issue root causes and avoided technical debt through full-stack troubleshooting.
- Provided informed opinions and guidance in various architectural decisions at the clients' request.
- Worked remotely with professional, frequent, and open communication.
Senior Front-end Developer
Mercado Libre
- Maintained and built the checkout process of Mercado Libre.
- Delivered the cart feature and the redesign of the web application with Backbone.js.
- Included PurifyCSS with Gulp to reduce the size of the project and delete the unused code.
Web Developer
Wolox
- Developed the first digital bank in Argentina, used by millions of users nowadays. An alliance between PayPal and Banco Comafi Argentina ([www.tunubi.com](http://www.tunubi.com/)).
- Resolved communication problems between the design team and developers, reducing delivery times.
- Developed an eCommerce platform using Ruby on Rails.
Project History
Plink
Epic Gardening
Foothold Technology
https://footholdtechnology.com/WORK DONE
• Implemented high-fidelity mockups into functioning React applications.
• Migrated the old codebase to a newer Angular version.
• Identified issue root causes and avoided technical debt through full-stack troubleshooting.
• Provided informed opinions and guidance in various architectural decisions at the clients' request.
• Worked remotely with professional, frequent, and open communication.
Education
Master's Degree in Computer Engineering
Instituto Tecnológico de Buenos Aires - Buenos Aires
Skills
Libraries/APIs
React, D3.js, Vue, Node.js, Rollup.js, Google Analytics API, jQuery
Tools
Sketch, Google Analytics, Jira, Figma, Rollup, Chromatic, Lerna, Jenkins
Languages
TypeScript, JavaScript, HTML, CSS, SCSS, SQL, PHP
Frameworks
Angular, AngularJS, Bootstrap, Material UI, React Native, Express.js, Vuetify, Next.js, Jest, Cypress, Redux
Paradigms
Agile, Responsive Web Design (RWD), Azure DevOps, Unit Testing
Platforms
Visual Studio Code (VS Code), Amazon Web Services (AWS), Firebase
Storage
MongoDB, MySQL
Other
User Experience (UX), Front-end Development, Web Development, Data Visualization, Axios, ESLint, User Interface (UI), Storybook, Vite, APIs, Styled-components, Front-end, QA Testing, UI Testing, Integration Testing
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