Lemoncode/master-frontend-lemoncode
Dec 2024 – Dec 2025
3 Months active
Languages Used
JavaScriptTypeScriptBashCSSHTML
Technical Skills
D3.jsData VisualizationFrontend DevelopmentAPI IntegrationBackend DevelopmentExpress.js
Joaquin Trillo
PROFILE
Joaquin Trillo
Over a three-month period, contributed to Lemoncode/master-frontend-lemoncode by building interactive data visualizations and subscription management features. Developed a D3.js-based map to display Spain’s regional unemployment rates, integrating topojson data and implementing dynamic UI interactions for actionable insights. Later, delivered a European football performance visualization using D3.js and TypeScript, enabling at-a-glance analysis with responsive tooltips. Additionally, enhanced the Stripe-based subscription flow by integrating recurring payments, webhook verification, and a customer portal, improving reliability and user experience. Focused on robust API integration, backend development with Node.js and Express.js, and frontend workflows, consistently delivering features that improved data visibility and business processes.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
4,437
Activity Months3
Your Network
12 peopleShared Repositories
12
IonutGabiMember
Braulio DiezMember
daniel.sanchezMember
Leticia de la OsaMember
Jaime SalasMember
Javier CalzadoMember
Joaquin TrilloMember
manudousMember
Miguel Angel Chimali CobanoMember
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025: Delivered European Football Performance Visualization feature using D3.js in Lemoncode/master-frontend-lemoncode. Implemented country coloring by Euro 2024 results with interactive tooltips for country names and results, enabling insightful, at-a-glance performance analysis across Europe. The feature was designed for smooth integration with the existing frontend and focused on responsive UX.
1 Commits • 1 Features
Dec 1, 2025December 2025: Delivered European Football Performance Visualization feature using D3.js in Lemoncode/master-frontend-lemoncode. Implemented country coloring by Euro 2024 results with interactive tooltips for country names and results, enabling insightful, at-a-glance performance analysis across Europe. The feature was designed for smooth integration with the existing frontend and focused on responsive UX.
December 2025
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for Lemoncode/master-frontend-lemoncode focused on delivering a robust Stripe-based subscriptions flow and improving checkout reliability. Key features delivered include Stripe Subscriptions and Webhooks: updated Stripe integration to support subscriptions and webhook-driven notifications, refactored checkout for recurring payments, implemented robust webhook verification, and set up a Stripe customer portal for self-service subscription management. Major bugs fixed: no explicit bugs reported; reliability and data integrity were improved by hardening webhook verification and streamlining the recurring checkout flow, reducing risk of missed events. Overall impact: enabled recurring revenue streams, improved self-service for customers, and strengthened data integrity and security around Stripe events. Technologies/skills demonstrated: Stripe API, webhooks verification, frontend refactor for recurring payments, JavaScript/TypeScript, security and data integrity practices, and collaboration through a focused commit (Stripe update XVI edition).
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for Lemoncode/master-frontend-lemoncode focused on delivering a robust Stripe-based subscriptions flow and improving checkout reliability. Key features delivered include Stripe Subscriptions and Webhooks: updated Stripe integration to support subscriptions and webhook-driven notifications, refactored checkout for recurring payments, implemented robust webhook verification, and set up a Stripe customer portal for self-service subscription management. Major bugs fixed: no explicit bugs reported; reliability and data integrity were improved by hardening webhook verification and streamlining the recurring checkout flow, reducing risk of missed events. Overall impact: enabled recurring revenue streams, improved self-service for customers, and strengthened data integrity and security around Stripe events. Technologies/skills demonstrated: Stripe API, webhooks verification, frontend refactor for recurring payments, JavaScript/TypeScript, security and data integrity practices, and collaboration through a focused commit (Stripe update XVI edition).
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 (Month: 2024-12) - Key feature delivered: Interactive Spain regional unemployment map visualization using D3.js pulling Spain topojson and displaying unemployment rates. No major bugs fixed during the period. Overall impact: provides actionable regional insights for business decisions and enhances data-driven visibility; improves stakeholder confidence. Technologies/skills demonstrated: D3.js, topojson data integration, interactive visualization design, data import pipelines, marker calculations, and UI/UX interactions (hover and click).
1 Commits • 1 Features
Dec 1, 2024December 2024 (Month: 2024-12) - Key feature delivered: Interactive Spain regional unemployment map visualization using D3.js pulling Spain topojson and displaying unemployment rates. No major bugs fixed during the period. Overall impact: provides actionable regional insights for business decisions and enhances data-driven visibility; improves stakeholder confidence. Technologies/skills demonstrated: D3.js, topojson data integration, interactive visualization design, data import pipelines, marker calculations, and UI/UX interactions (hover and click).
December 2024
Activity
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Quality Metrics
Correctness90.0%
Maintainability83.4%
Architecture83.4%
Performance80.0%
AI Usage26.6%
Skills & Technologies
Programming Languages
BashCSSHTMLJavaScriptTypeScript
Technical Skills
API IntegrationBackend DevelopmentD3.jsData VisualizationExpress.jsFront End DevelopmentFrontend DevelopmentFull Stack DevelopmentNode.jsStripe APISubscription ManagementTypeScriptWebhook Implementation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline