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Dian Hadi

@dianhadi

Message

I build scalable, high-traffic backend systems for finance, e-commerce, and government platforms.

Indonesia

Message

I've built backend systems for Bank Sinarmas, Tokopedia, and Singapore government websites across finance, e-commerce, and public-sector platforms.

At Bank Sinarmas, I contribute to re-architecting a decade-old mobile backend and built a Go-based customer reward redemption system from scratch. I lead four engineers transitioning to Go through hands-on mentorship and technical guidance.

At Tokopedia, I designed courier orchestration and recommendation services and owned high-traffic systems handling more than 50k RPS. I also optimized Google Maps integration for the address system, saving up to USD 25k per month.

Earlier, I led backend development for Singapore government websites and cloud platform provisioning tools, and developed e-commerce platforms for Australian businesses. I use data-driven approaches to build scalable modern architectures.

Experience

Work history, roles, and key accomplishments

Current

Technical Lead

Current

Bank Sinarmas

Jul 2023 - Present (3 years 2 months)

Leading the re-architecture of the mobile app backend from legacy code to a modern, scalable architecture. Developing a customer reward system from scratch using Go and leading a team of 4 engineers transitioning to Golang.

Go Java PostgreSQL Oracle Redis Kafka Elastic Stack Kibana Gitlab Jira Kubernetes

Principal Engineer

Tokopedia

Jan 2021 - Dec 2022 (1 year 11 months)

Designed and developed a courier orchestrator and recommendation system. Served as service owner for high-traffic services managing over 50k RPS, and collaborated with cross-functional teams on significant projects.

Go PostgreSQL Redis NSQ New Relic Microservices GCP AliCloud Datadog Linux Nginx Terragrunt Ansible GitHub Jenkins Google Maps API Jira

Senior Software Engineer

Tokopedia

Jan 2019 - Dec 2020 (1 year 11 months)

Maintained and enhanced the user address system for buyers and sellers. Optimized Google Maps integration, resulting in substantial cost savings of up to 25k USD per month.

Go PostgreSQL Redis NSQ New Relic Microservices GCP AliCloud Datadog Linux Nginx Terragrunt Ansible GitHub Jenkins Google Maps API Jira

Software Engineer

Tokopedia

Jul 2017 - Dec 2018 (1 year 5 months)

Integrated logistic partners with a focus on rates and shipping editor aspects. Spearheaded development related to logistics, including estimated time delivery and courier auto-selection.

Go PostgreSQL Redis NSQ New Relic Microservices GCP AliCloud Datadog Linux Nginx Terragrunt Ansible GitHub Jenkins Google Maps API Jira

Backend Developer

Xtremax Indonesia

Dec 2014 - May 2017 (2 years 5 months)

Led development of various projects for Singapore government websites using Sitecore. Played a vital role in developing an engine in the Cloud Website Platform, streamlining provisioning, deployment, and patching websites using C#.

ASP.NET C#MSSQL Sitecore Amazon SQS AWS S3 Windows Server IIS Bitbucket Jira

Backend Developer

Cheapsheds Pty Ltd

Sep 2012 - Dec 2014 (2 years 3 months)

Developed and maintained numerous Australian e-commerce websites using PrestaShop and Magento. Integrated eCommerce orders into the admin dashboard, customized CMS modules, and implemented custom shipping solutions.

PHP Zend Magento PrestaShop MySQL Facebook API Instagram APIs Twitter API CPanel

Full Stack Developer

Rakun Studio

May 2011 - Mar 2012 (10 months)

Developed diverse website projects, including company profiles and e-commerce platforms, utilizing CodeIgniter. Worked as a part-time employee while delivering the responsibilities of a full-stack developer.

PHP CodeIgniter JavaScript jQuery CSS MySQL HTML OpenCart