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Cleyton Silva

Senior Software Engineer

Toronto, ON

Loblaw Companies Limited

Senior Software Engineer
May 2025 - Present (4 months)
Toronto, Ontario, Canada

Working as a Senior Software Engineer on the Core team at Loblaw Digital, contributing to the maintenance and evolution of large-scale e-commerce platforms across the Loblaw group.

I develop modern, high-performance, and accessible frontend applications using technologies such as Next.js, React, Shadcn UI, Chakra UI, Sass, Redux, Context API, and Storybook, ensuring scalability and consistency across multiple platforms.

Key Responsibilities

I actively lead modernization initiatives, migrating legacy codebases to scalable and maintainable architectures, while driving improvements in performance, user experience, and engineering standards. As part of these efforts, I contributed to improving the performance of the main e-commerce platform by 23%, significantly enhancing user experience and business outcomes.

In addition, I work on the maintenance and optimization of CI/CD pipelines, leveraging tools such as GitLab and Argo, and supporting cloud infrastructure using Google Cloud. My focus includes improving deployment reliability, reducing build times, and enabling faster and safer releases.

I collaborate closely with cross-functional teams (product, design, and engineering) to define and standardize reusable components, document UI systems in Storybook, and promote best practices around design systems and frontend architecture across the organization.

Technologies Used

  • Frontend: Next.js, Shadcn UI, Chakra UI, Sass, Redux, Context API
  • Development Tools: Storybook
  • Focus Areas: Performance optimization, accessibility, design systems