
Decathlon
08.2024 - Present
Ecommerce web application
Senior software engineer
2 years
Netherlands
- - Contributed to improving the checkout experience for an e-commerce platform with ~20K daily cart users and a checkout conversion rate close to 40%, using A/B testing to validate UX improvements.
- - Built a scalable and performant web application with a strong focus on developer experience, clean architecture, and a shared design system, implementing SLOs to ensure high availability.
- - Developed a flexible, declarative form builder system with built-in validation, actions, and state management that supports dynamic forms.
- - Optimised web pages for maximum speed and scalability, auditing web performance metrics to reduce load times and improve user experience.
- - Actively participated in the Web Performance Guild, driving initiatives to improve Core Web Vitals across the platform.
- - Maintained production health and system stability through proactive monitoring, using Datadog dashboards and alerts to catch issues before they impacted users across the ecommerce platform's 25+ countries.
- - Mentored and supported engineers in their professional growth.
- - Improved development productivity and code quality by using AI-assisted tools like GitHub Copilot and Gemini.


