Alberto R Cahyantara

Full-stack Developer - Tabist Japan August 2023 — now

• Migrating from Webpack to Rspack, enhancing build performance and developer productivity.
• Upgrading Ant Design from v4 to v5, refining our design system for consistency and scalability.
• Developing a drawing feature for PDF signing, improving user workflow.
• Automating development processes with GitHub Actions, streamlining PR creation, branch synchronization, and releases.
• Implementing a cron-based microservice for backup management to ensure data safety during downtimes.
• Crafting complex queries for detailed reporting and analytics.
• Managing S3 buckets for efficient storage solutions.
• Introducing Zod validation in NestJS to enforce data integrity.
• Developing an admin panel using React Native.
• Monitoring errors and system health with Datadog.
• Leveraging Docker and Lens for containerized deployments and cluster management.

Full-stack Developer - Freelance July 2022 — July 2023

• Developed full-stack applications using Next.js, utilizing various rendering techniques such as SSG, ISR, and SSR to improve performance and SEO depending on the page type.
• Integrating Prisma ORM, tRPC, and react-query on the back-end to make type-safe APIs, that are easy to call and manage.
• Migrating project to a monorepo using Turborepo to make package reusable in multiple apps.
• Added a react native (Expo) to existing project and integrated it with the back-end and auth using Clerk.
• Built a personal website with Astro that achieved a perfect 100 lighthouse score.
• Enhanced page interactivity with the island architecture with SolidJS framework.
• Created stunning animations using pure CSS, resulting in visually appealing pages even without JavaScript.
• Developed a responsive design system using Tailwind CSS for faster & easier styling.
• Deployed and maintained databases using Planetscale, resulting in zero downtime and easier migration management.
• Developed an app with improved accessibility using ChakraUI.
• Designed multiple landing page mockups using Figma.
• Created custom markdown editor with Tiptap, incorporating all the features users expect for rich content.
• Implemented infinite scroll for blog posts, resulting in faster query speeds.

Front-end Developer at Achiko AG September 2020 — June 2022

• Led & finished dashboard app revamp project within four months with a new design system, resulting in increased user engagement and improved UX.
• Improved code safety and reliability by porting legacy code to TypeScript, resulting in a more maintainable and scalable codebase.
• Optimized app performance by reducing bundle size with code-splitting, resulting in faster page load times and improved user experience.
• Designed and developed an interactive chart feature, providing users with valuable insights and data visualization capabilities.
• Implemented an advanced table system to handle complex data, improving data management and organization for users.
• Created a complex form with advanced validation, resulting in a user-friendly and error-free data input experience.
• Managed async server state with client caching, resulting faster data retrieval and more responsive app.
• Developed data export feature to Excel & PDF, allowing users to easily export and share data with others.
• Built a custom markdown editor for rich text content, providing a more flexible and customizable content creation experience.
• Implemented React Suspend and optimistic rendering to improve user experience, resulting in smoother and more responsive app performance.
• Collaborated with the back-end team to adjust API for the new dashboard, ensuring seamless integration and improved overall app functionality.