Andi, senior fullstack engineer

Open for freelance projects

Senior fullstack engineer. 5+ years building cloud apps on Node.js, now focused on generative AI.

Jakarta, Indonesia

Selected work

Side projects from 2025 and 2026: AI agents, developer tools and a couple of hackathon builds.

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Experience

Five years of shipping production systems: cloud architecture, team leadership, and lately a lot of AI.

  1. 2024 – nowSenior Full-Stack Developer

    Leading a team and the AI work

    • Lead a team of 5 developers and set the technical roadmap and architecture standards.
    • Lead AI R&D: core Node.js services for conversational AI, RAG and summarization.
    • Design system architecture for new features, built for scale in a cloud-native setup.
    • Set shared code review standards across Node.js, Go and Java codebases.
  2. 2021 – 2024Full-Stack Developer

    AI customer service, cloud migration and reliability

    • Built the core services for award-winning AI customer service tools on GCP.
    • Moved on-premise services to a high-availability AWS architecture with no single point of failure.
    • Ran root cause analysis with Grafana and Splunk to cut critical incident resolution time.
    • Set up CI/CD with GitLab and Jenkins, and built a real-time queue management system that replaced paper forms.
    • Rebuilt legacy PHP APIs as modern Node.js services.
  3. 2020 – 2021Full-Stack Developer

    A low-code platform

    • Built a low-code platform that generates GraphQL and REST APIs automatically.
    • Built its authentication, real-time communication and cloud function integrations.

Certifications

  • Google Associate Cloud EngineerGoogle Cloud, Dec 2024
  • AWS Certified Cloud PractitionerAmazon Web Services, Oct 2023

What I work with

JavaScript, TypeScript, Node.js, NestJS, Express, React, Next.js, Go, Java, AWS, Google Cloud, Docker, Kubernetes, Terraform, MySQL, Redis, PostgreSQL, GraphQL, LangGraph, LangChain and Mastra.

Got an idea? Let's build it.

Send me a few lines about your project and I'll get back to you.