AI, engineering & a little perspective
Doni Putra.
Making sense of AI.
Building what comes next.
Exploring AI news, research, and the ideas shaping how we work, with a hands-on perspective from cloud and backend engineering.
Doni Putra PurbawaAI Enthusiast | Cloud Architect & Senior Backend EngineerThe foundation for what comes next.
AWS infrastructure built for reliability, security, and growth.
The journal
Ideas worth a closer look.
Stay curious
A little signal.
Less noise.
Fresh perspectives on AI, technology, and everyday life in Japan. Follow the journal in your favorite feed reader.
Follow via RSSFrom thinking to building
Selected work.
AI & LLM2026
Planpresso: AI PRD Planner for Coding Agents
An AI-powered planning workspace that turns an idea into a scoped product requirements document, a right-sized tech stack, and downloadable coding-agent handoff packs.
AI & LLM2026
SmartMatch OCR: AI Document Processing & Verified Data
A Node.js and Express document-intelligence API that turns scans and PDFs into structured data through configurable extraction, validation, human review, and finalized output.
AI & LLM2026
milc: Voice-Powered AI Text Editing for Windows & Mac
An Electron desktop app that brings voice input, rewriting, translation, and shortcuts into everyday writing, backed by a Node.js and Express API.
Behind the work
Built on
real experience.
6+ years building backend and platform systems, leading a team of 6 engineers, and connecting cloud, fintech, and AI.
Cloud architecture
AWS production environments with EC2, RDS, S3, CloudFront, IAM, observability, and CI/CD. Infrastructure that teams can operate with confidence.
Backend platforms
REST APIs, microservices, and gRPC services with Node.js, Java, Go, and PostgreSQL. Clear boundaries, reliable data flows, and maintainable integrations.
Applied AI
LLM orchestration with OpenAI and Gemini, RAG pipelines, vector search, and machine learning model deployment. Connecting intelligence to useful product experiences.
Fintech & payments
Stripe, PayPal, GMO, and Square integrations, including subscription billing, resilient webhooks, and reconciliation.
Good work starts with a conversation