Andre Kristanto
Verified Expert in Engineering
Software Developer
Singapore, Singapore
Toptal member since February 18, 2022
Andre is a full-stack developer focused on E2E web applications. At TikTok, he architected technical designs and solutions for ten core modules and reusable React components for custom layouts, charts, nested visual trees, a code editor, tracking analysis, and a virtual table. Andre has delivered highly visual apps and designed state machine transitions with complex workflow and asynchronous side-effect tasks. He is currently building a next-gen product for an insurtech startup.
Portfolio
Experience
- JavaScript - 4 years
- TypeScript - 4 years
- Node.js - 4 years
- React - 4 years
- Redux - 3 years
- Express.js - 3 years
- PostgreSQL - 3 years
- React Native - 2 years
Availability
Preferred Environment
MacOS, Front-end Development
The most amazing...
...project I've developed was boilerplate and code flows and standards for my team.
Work Experience
Front-end Developer
Planit Software Ltd. - Main
- Developed reusable and integrable in a cloud-native application, a desktop application (inside a ChromeWebControl), or in an embedded device using React, Vite, MUI, and Azure Cloud workflows.
- Implemented custom 3D engine renderer to display complex machine parts (e.g., artifacts, racks, and probes) using Three.js and React Fiber Three, including complex 3D interactions.
- Implemented Vitest unit test and storybook-based approach to increase maintainability and testability of the software for a precision measuring enterprise.
Full-stack Developer
Ethos
- Maintained, designed, and developed new features for documents, payments, and policy statuses using an event-based approach.
- Designed and integrated multiple 3rd-party insurance APIs using XML/SOAP and data feed integrations and created reusable complex XML builder and parser.
- Built a new application process from scratch and designed the API integrations for the whole process using NestJS and the React tech stack.
Senior Front-end Developer
Tech enterprise Co., Ltd.
- Developed responsive B2C web application using React and Bootstrap for an eCommerce platform selling gold.
- Oversaw launch processes and testing E2E across the system with three additional web applications integrated with the system from wholesaler, distributor, and retailer.
- Improved loading speed for the website from 1s to 0.2s initial loading time using Webpack optimization chunk loading and Skeleton loading.
Full-stack Developer
VPermits
- Developed an app for managing parking permits for visitors and residents.
- Integrated Stripe checkout with the subscription-based product.
- Designed and implemented the whole theme UI system for the application.
Senior Software Engineer
TikTok
- Architected and wrote technical designs and implemented technical feasibilities and solutions for ten core modules.
- Implemented efficient and reusable React components for custom layouts, charts, nested visual trees, a code editor, tracking analysis, and a virtual table.
- Set up boilerplate and code standards for the team to be used for the BytePlus Marketing page.
Experience
BytePlus Marketing Page
https://www.byteplus.com/NTU Bus Monitoring Application
https://expo.dev/@andrekristanto17/ntu-loopsGrevi - Graph Editor
Education
Bachelor's Degree in Computer Science
Nanyang Technological University - Singapore, Singapore
Skills
Libraries/APIs
Node.js, React, Stripe, REST APIs, Stripe API, API Development, React Redux, Three.js, Chart.js, D3.js, Puppeteer, WebGL, Recharts, Salesforce API, AWS Amplify
Tools
Figma, Git, Stripe Checkout, Canvas, Amazon CloudFront CDN, Webpack, Kafka Streams, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS)
Languages
JavaScript, TypeScript, CSS, HTML, HTML5, SQL, GraphQL, CSS3, SCSS, Python, Sass, Java, Groovy, Clojure, Kotlin
Frameworks
Next.js, Redux, Bootstrap, Flask, Express.js, NestJS, React Native, Material UI, Ant Design, Jest, Tailwind CSS, Cypress, Electron, Django, Spring Boot, Angular
Paradigms
Agile, Model View Controller (MVC), Microservices, HIPAA Compliance, Testing, Unit Testing, Responsive Web Design (RWD), REST, DevOps
Platforms
Web, Docker, Amazon Web Services (AWS), Netlify, Contentful, AWS Lambda, Mapbox, MacOS, Amazon, Apache Kafka, Google Cloud Platform (GCP), Shopify, JVM, DigitalOcean
Storage
PostgreSQL, Amazon S3 (AWS S3), Amazon DynamoDB, MongoDB, MySQL, Azure Cloud Services, Google Cloud, NoSQL
Industry Expertise
Healthcare
Other
Full-stack, User Interface (UI), HTTP, Web Development, Web Applications, Front-end Development, Front-end, Back-end, Back-end Development, APIs, Storybook, Software, DOM, Virtual DOM, Documentation, Communication, Pixel Perfect, Stripe Payments, Payment APIs, CI/CD Pipelines, Full-stack Development, API Integration, UI Components, Design Systems, Data Visualization, Codebase Development, Scraping, Web Scraping, Store Scraping, Data Scraping, PDF, TypeORM, QA Automation, Infrastructure as Code (IaC), Architecture, Serverless, PDF Scraping, i18n, Monorepos, 3D, eCommerce, Solution Architecture, Okta, Vite, Microsoft Azure Cloud Server, Content Management Systems (CMS), Design, Amazon API Gateway, Accessibility
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