Doni Putra Purbawa

Doni Putra Purbawa

AI Enthusiast | Cloud Architect & Senior Backend Engineer

Indonesia · Open to Japan relocation

I'm an AI enthusiast exploring the research, products, and industry shifts shaping how we live and work. In my journal, I share accessible explanations and practical perspectives grounded in my engineering experience.

I'm a hands-on Cloud Architect and backend engineering manager with 6+ years building production systems for a Japanese SaaS company. My expertise spans AWS infrastructure, fintech payment platforms, microservices architecture, and AI-powered application backends. I care about correctness, reliability, and shipping systems that teams can operate with confidence.

Engineering Philosophy

Good cloud architecture is quiet — your users never think about the networks, databases, deployments, and observability keeping their products available. That reliability is the goal.

I approach every system with three questions: Is it secure? Is it observable? Can someone else maintain it in six months? The answer to all three should be yes before anything goes to production.

I believe in simple solutions to complex problems, strong code review culture, incident postmortems without blame, and continuous investment in developer tooling and deployment confidence.

Technical Skills

Languages

Node.jsTypeScriptJavaGolangPython

Cloud Architecture & Infrastructure

AWS EC2RDSS3CloudFrontIAMCloudWatchDockerNginx

Platform & Backend Architecture

REST APIgRPCMicroservicesPostgreSQLRedisRabbitMQAWS SQS

Payment Integration

StripePayPalGMOSquareWebhooksSubscription Billing

AI & Machine Learning

OpenAIGeminiLangChainTensorFlowPyTorchVector Databases

Tools & Practices

GitHub ActionsPM2LinuxPrismaZodJest

Certifications

2023

AWS Certified Cloud Practitioner

Amazon Web Services

2019

JLPT N4 (Japanese Language)

Japan Foundation

2022

TOEIC 765 (English Proficiency)

ETS

Education

Master of Informatics Engineering

Institut Teknologi Sepuluh Nopember (ITS)

Surabaya, Indonesia

2020 – 2022

GPA 4.00 / 4.00

  • Research focus: Deep learning for anomaly detection in medical IoT
  • Published Elsevier Q1 journal paper on COVID-19 detection
  • Co-authored book: Machine Learning & Deep Learning using Python

Bachelor of Informatics Engineering

Universitas Brawijaya

Malang, Indonesia

2013 – 2017

GPA 3.79 / 4.00

  • Student exchange at Saga University, Japan (2016)
  • Thesis: Web-based academic information system

Student Exchange Program

Saga University

Saga, Japan

2016
  • Immersed in Japanese engineering and academic culture
  • Foundation for JLPT N4 language achievement
  • Sparked interest in Japan technology sector and career opportunities

Publications & Books

Adaptive filter for detection outlier data on electronic nose signal

2022

Sensing and Bio-Sensing Research (Elsevier), Volume 36, Article 100492

First-author research on an adaptive deep-neural-network filter for electronic-nose sensor outliers. Reported 90.4% average balanced accuracy for outlier detection, not clinical COVID-19 diagnosis.

Read the paper

Machine Learning & Deep Learning using Python

2022

Book — Co-author

Contributed chapters covering deep learning fundamentals, model training workflows, and practical deployment patterns for Indonesian engineering students.