Putra Hidayat Arifin
phone / whatsapp
+6285763402690
birthday
July 27, 2001
Location
Medan, Indonesia (GMT+7)
availability
Open to Worldwide Remote
cv / resume
Download CV (PDF)I'm a full-stack developer based in Medan, Indonesia, and I like building software that people actually use. For the past four years I've worked on healthcare and logistics platforms, building features from the frontend to the backend and keeping them stable in production. I also take on freelance work building AI features for clients abroad.
Most of my work is in Vue, Nuxt, React, Laravel and Node.js. I've handled production support, rolled out systems to partner hospitals, built internal tools from scratch and fixed performance problems that were slowing teams down. Lately I've been doing more with LLMs: prompt design, API integration and RAG pipelines that run inside real products, not just demos. I care about clean code and systems that keep working long after launch.
I work fully remote and I'm used to async teams spread across Europe, the US and Southeast Asia. I share progress without being asked, write things down, and prefer to find the root cause of a problem instead of patching around it.
If you're hiring or have a project in mind, feel free to get in touch.
I build production web apps from start to finish with Vue 3, Nuxt, React, Laravel and Node.js/Express, using TypeScript where it makes sense. That includes role-based access, REST APIs, CI/CD with GitHub Actions, caching and background jobs. The platforms I look after run at 99.9% uptime.
I add LLM features to real products, such as classifying, summarizing and extracting data with OpenAI GPT and Anthropic Claude. I also take care of the less visible parts like error handling, rate limits and cost control, and I build RAG pipelines and multi-step agents with LangChain or custom code.
I design REST APIs that stay stable as they grow and connect them to third-party services. This covers versioning, OAuth2/JWT authentication, webhooks with retries, rate limits and real-time updates over Socket.io. I also write docs with examples so other developers can start using them quickly.
I replace spreadsheet workflows with internal apps that teams actually use, with role-based access, audit trails, SLA timers, task queues, imports and exports, approvals and reporting charts. I have built these for healthcare, logistics and port operations.