Amos W.
Frontend Developer | React & Next.js | ERP, SaaS & Web App Development
👋 Hello! I'm Amos Wijaya — a frontend developer with 5+ years of experience building and maintaining responsive web applications. I specialize in translating Figma designs into pixel-perfect, functional interfaces, and bring solid front-end expertise complemented by foundational back-end skills. I've worked across scraping infrastructure, fintech dashboards, ERP systems, and client-facing SaaS products — always focused on writing clean, maintainable code that's practical to build and scale. My expertise includes: ▪ React.js & Next.js Web Application Development ▪ Pixel-Perfect UI Implementation from Figma ▪ Dashboard & Data-Heavy Interface Development ▪ ERP System Frontend Architecture & Workflow Design ▪ Internal Backoffice & Admin Panel Development ▪ REST API Integration & Node.js/Express Backend Support ▪ PostgreSQL / TimescaleDB / MongoDB Data Handling ▪ Responsive Design & Cross-Browser Testing (Cypress) ▪ React Native Mobile App Development ▪ Agile Collaboration (Daily Stand-ups, Sprint Planning) I also bring hands-on experience with web scraping infrastructure and server-side scripting (Node.js, PM2, bash), and I actively use AI tools like Claude Code and Cursor AI to speed up development and keep code quality high. Tech Stack: Front-End: React.js, Next.js, JavaScript, TypeScript, Redux, Tailwind CSS, SCSS, Ant Design, Bootstrap, React Native, Shadcn UI Back-End: Node.js, Express.js, PostgreSQL, TimescaleDB, MongoDB, Supabase Tools: Figma, Git, Linux, Cypress, Vercel If you're looking for a developer who can turn designs into fast, reliable, production-ready products — let's build something great together.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $2k
Billed in all: $8,490$8.5k
$1k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 13% in SCSS
Ranked by MRR among everyone on Upwork with the skill.
- #74Tailwind UI345 freelancers · 🇮🇩 #4Top 21%🇮🇩#4 of 10
- #194SCSS1,459 freelancers · 🇮🇩 #5Top 13%🇮🇩#5 of 28
- #986ExpressJS5,651 freelancers · 🇮🇩 #17Top 17%🇮🇩#17 of 100
- #1,452Supabase4,116 freelancers · 🇮🇩 #26Top 35%🇮🇩#26 of 64
- #1,459Vue.js8,268 freelancers · 🇮🇩 #30Top 18%🇮🇩#30 of 183
- #1,745SaaS Development5,201 freelancers · 🇮🇩 #16Top 34%🇮🇩#16 of 45
- #2,125Responsive Design9,915 freelancers · 🇮🇩 #49Top 21%🇮🇩#49 of 204
- #2,195React Native10,486 freelancers · 🇮🇩 #23Top 21%🇮🇩#23 of 136