I Gusti Bagus Budi A.

I build software that works and stays simple. 17 years across backend/frontend, AI-assisted development, and AWS infrastructure, favoring proven, reliable solutions over unnecessary complexity. Client reviews 🌟 "Finding one who completely owns your core platform, understands the architecture, and constantly looks for ways to improve the business? That’s rare. Budi has been with us since 2016, and the reality is, he is the backbone of our booking engine. Over the years, we’ve thrown massive technical challenges at him, and the trend is always up. What he does works, and he is constantly learning..." 🌟 "It was a pleasure working with Budi. He is a highly skilled PHP developer who consistently delivered high-quality work, communicated well, and could be relied on. He made significant contributions to our software and were proactive in solving complex technical challenges. We highly recommend them to anyone looking for an experienced PHP developer and would gladly work with him again..." 📗 My qualifications: 🗒️ Reliable, Clear Communication & Committed for the long-term I do the work myself, commit to your project, solve problems, and deliver end-to-end results. Some clients I've worked with have stayed with me for 10 years. I communicate early and have mastered async communication with 12 years of experience. Clear expectations, I tell you early if I've found a blocker or need research. 🗒️ AI-First development I use AI to boost productivity combined with 17 years hands-on software engineering experience to build a proper software architecture that is scalable & maintainable. I automate repetitive tasks, allowing me to focus on more complex and creative aspects of the project. 🗒️ CTO / Product Mindset I understand your business and goals first before code. I know how to expand from a small brief into a workable solution. I suggest the most optimal solution to meet your business needs. Proactively engage with the project, improve it and don't wait for assigned tasks. 🗒️ Technologies built Car hire aggregator booking engine, GIS/GPS/Coordinates Systems, Microservices, Infrastructure as code, Data Synchronization, DevOps, SDK/Third Party API integration. Insurance & fintech Product, Strict Secure Data Policy, OAIC/GDPR compliance. 🗒️ Payment gateway Stripe with split destination, PayPal and Braintree payment gateways. Understand how to secure it, prevent duplicate payments and handle failure with retry or auto refunds. 🗒️ API Integrations Supplier car hire OTA with SOAP/XML and JSON CustomerIO, PostHog, Google Tag Manager, Twilio. 🗒️ Technology stacks Languages PHP, Typescript, Python, Go. Frameworks Laravel, Symfony, FastAPI, Next.js, Nestjs, Node.js, React, Angular, Vercel Eve. AI/Agentic Frameworks LangChain, LangGraph, LangFuse, FastMCP, RAG, N8N AI Automation. Machine Learning Numpy, Pandas, Scikit-Learn, Pytorch, Vector Search, fine-tuning & model eval. Cloud & Infrastructure AWS Cloud, Google Cloud, Hostinger, Digital Ocean, Event Driven System (AWS SQS, RabbitMQ, GCP Pub/Sub), Docker, Kubernetes, CI/CD, Distributed Systems, Terraform, GitHub actions. Data & Querying MySQL, PostgreSQL, Prisma ORM, Drizzle ORM, MongoDB, Redis, Pinecone, GraphQL, REST API, XML, SOAP, WebSocket, GIS Spatial, Model Context Protocol. Security & Auth OIDC, OTP, OAuth, JWT, HTTP Auth, API Key, OWASP, Least-Privilege Access.