API Development
RESTful APIs and backend services With 3+ years of experience delivering high-quality solutions. Available for remote work worldwide.
What's Included
REST APIs with clear contracts and documentation
Auth, rate limiting, and versioning from the start
Third-party integrations: payments, WhatsApp, AI providers
Database design and query optimization
Monitoring and error tracking in production
How I Deliver API Development
Contract First
Endpoints, payloads, and error cases documented and agreed before code is written.
Implementation
Typed, tested endpoints with sensible pagination and validation.
Integration
Wiring to the services you already use, with retries and failure handling.
Deploy & Document
Production deployment plus documentation your future developers will thank you for.
Common API Development Projects
App APIs
The backend behind React Native apps — sync, authentication, and push notifications.
WhatsApp & Bot Integrations
WhatsApp API and Telegram bot flows connected to your internal systems.
LLM-Powered Services
OpenAI-backed features with cost controls and graceful fallbacks.
Technologies Used
API Development Projects
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SRI (School Registration Information Assistant) is an AI-powered chatbot developed as a Proof of Concept (PoC) to streamline school registration information. SRI is designed to answer common questions about schools and their registration procedures using pre-provided data, offering a faster, more efficient communication channel for prospective students and parents. Built for flexibility and future expansion, this project demonstrates how AI can enhance user interactions in educational institutions. Leveraging cutting-edge technologies like JavaScript and the unofficial WhatsApp API (using Baileys), SRI provides a robust demo environment showcasing real-time responses and seamless integration with popular messaging platforms..
A web-based company profile for one of the Event organizers in Malang. In this project my responsibilities are developing the backend with Express, Sequelize(MySQL) and slicing from figma into HTML CSS TailwindCSS, Tech Stack: Tailwind CSS Express JS, Vue JS, NuxtJS
Catatlah is a free-forever personal finance tracker for Indonesia — scan paper receipts with on-device OCR, log spending by chatting, and track budgets, wallets, debts, and split bills as an installable PWA, plus Telegram and WhatsApp bots. Live at catatlah.com.
Interactive English course mobile app featuring comprehensive stats tracking, real-time text messaging, and real-time voice chat functionalities, ensuring an immersive and effective learning experience using react native, reactjs and express.js
Professional Experience
View full experience →Full Stack Web and Mobile Developer@Freelancer
Remote
React Native Developer@PT Kreasi Kode Indonesia
Yogyakarta, Indonesia
Fullstack Laravel Developer@PT Pan Brothers Tbk and group
Boyolali, Indonesia
Frequently Asked Questions
What is your process for API Development?
I follow an agile approach: understanding requirements, creating a roadmap, iterative development with regular updates, and thorough testing before delivery.
How long does a typical API Development project take?
Project timelines vary based on complexity. After understanding your requirements, I provide a detailed estimate and milestone plan.
Do you provide ongoing support after API Development?
Yes, I offer maintenance and support packages to ensure your application stays updated and performs optimally.
What technologies do you use for API Development?
I use modern, industry-standard technologies tailored to your project needs. For API Development, I typically work with React Native, React.js, Node.js, and related tools.