Antonius Ronal Peterson Purba — Software Engineer

Expertise in Back-End Web (9.0 yr.), Full Stack Web (9.0 yr.).

Last verified on February, 2026

Core Skills

Django REST framework

1 yr.

Bio Summary

Software Engineer with over a decade of experience in developing scalable web and mobile systems using diverse tech stacks including Laravel, Django, Golang, Ruby on Rails, React, and TypeScript. Proven expertise in building secure RESTful APIs, optimizing databases (MySQL, MongoDB, PostgreSQL), and implementing cloud infrastructure on AWS. Skilled in Agile/Scrum methodologies, CI/CD pipelines, and cross-functional collaboration. Notable contributions to high-traffic platforms such as ruparupa.com, erafone.com, and berniaga.com, demonstrating strong backend and frontend development capabilities.

Technical Skills

Programming Languages	Dart, Kotlin, Rust, TypeScript
.NET Platform	Azure, .NET
C++ Libraries and Tools	C/C++/C#
Mobile Frameworks and Libraries	Crashlytics
Python Frameworks	Django REST framework, Flask
JavaScript Frameworks	Express, jQuery, Node.js, React, Vue.js
Android Libraries and Tools	Kotlin
PHP Frameworks	Laravel
Java Frameworks	Spring Boot
Databases & Management Systems / ORM	MongoDB, MySQL, PostgreSQL, Redis
UI Frameworks, Libraries, and Browsers	CSS, HTML, jQuery
Cloud Platforms, Services & Computing	AWS, Azure
Deployment, CI/CD & Administration	CI/CD
Version Control	Git
Operating Systems	Linux, Unix
SDK / API and Integrations	RESTful API
Platforms	SAP
Methodologies, Paradigms and Patterns	Scrum
Other Technical Skills	Alpine.js, Inertia.js, MERN stack (MongoDB, Express, React, Node)

Work Experience

Website Developer, Berniaga.com

Duration: 2011 - 2014
Summary:

Developed and maintained Berniaga
com, a web-based classified marketplace platform for buyers and sellers
Implemented CRUD modules for ads, users, and transaction management
Optimized MySQL queries and improved page load performance
Implemented authentication, session management, and form validation
Collaborated with designers and content teams to improve UI/UX and conversion
Performed ongoing bug fixing, maintenance, and feature enhancements
Supported deployment, server maintenance, and basic Linux (LAMP) environment configuration
Project Highlight: Berniaga
com – Classified marketplace for online listings and transactions

Responsibilities: Developed and maintained classified marketplace platform, implemented CRUD modules, optimized database queries, implemented authentication and session management, collaborated on UI/UX improvements, performed bug fixes and maintenance, supported deployment and server maintenance.
Technologies: PHP (Native, CodeIgniter), JavaScript, HTML, CSS, jQuery, MySQL, Apache, Linux, Git (basic), REST-style APIs, AJAX, cPanel, SEO (on-page)

Software Engineer, Erafone.com

Duration: 2015 - 2016
Summary:

Contributed to the development and maintenance of public-facing e-commerce platforms, including Erafone
com
Implemented website features and content updates using PHP (Laravel – early adoption) and jQuery
Assisted with backend logic, bug fixes, and minor performance improvements on production systems
Integrated web applications with REST APIs and POS systems
Supported production releases in Agile/Scrum environments

Responsibilities: Developed and maintained e-commerce platform features, implemented content updates, assisted backend logic and bug fixes, integrated REST APIs and POS systems, supported production releases.
Technologies: PHP (Laravel – early versions), JavaScript, jQuery, HTML, CSS, REST APIs, POS Integration, MySQL (basic), Git, Agile/Scrum

Software Engineer, ruparupa.com and internal tools

Duration: 2016 - 2021
Summary:

Developed and maintained internal tools and backend services supporting large-scale retail operations
Contributed to the development of the public-facing e-commerce platform, ruparupa
com
Built and maintained backend components and integrations like POS, SAP, and S2 systems
Assisted in ETL processes and data flows for operational and reporting needs
Supported CI/CD pipelines and deployment processes in Linux environments
Collaborated with infrastructure and operations teams to ensure system reliability and availability

Responsibilities: Developed internal tools and backend services, contributed to e-commerce platform development, built backend integrations, assisted ETL processes, supported CI/CD and deployment, collaborated for system reliability.
Technologies: Golang, Ruby on Rails, TypeScript (limited), SAP, S2, POS Systems, Linux, Flutter (Dart), Kotlin, Firebase, CI/CD, ETL, Networking

Software Engineer, FirstMedia.com & my.firstmedia.com

Duration: 2021 - 2022
Summary:

Contributed to development of internal web systems and public-facing platforms, including FirstMedia
com & my
firstmedia
com
Built and maintained RESTful APIs using Django, integrating frontend components
Improved application reliability and performance through bug fixes, and database optimization
Worked closely with product, QA, and engineering teams in an Agile/Scrum environment using Git

Responsibilities: Developed internal and public web systems, built and maintained RESTful APIs, integrated frontend components, improved reliability and performance, collaborated in Agile/Scrum teams.
Technologies: Python, Django, React, TypeScript, PostgreSQL, HTML, CSS, JavaScript, Git, Flutter (Dart), Kotlin, Firebase, CI/CD, Agile/Scrum

Software Engineer, Internal Banking Applications

Duration: 2023 - 2025
Summary:

Developed and maintained internal banking applications supporting core operational and administrative workflows
Designed and implemented secure RESTful APIs, integrating web and mobile clients
Maintained existing frontend built with Vue
js + Inertia
js, and developed interactive UI components using Alpine
js
Developed new frontend modules using React and TypeScript
Implemented Redis caching to improve application performance and reduce database load
Supported deployment and cloud infrastructure on AWS

Responsibilities: Developed and maintained banking applications, designed and implemented RESTful APIs, maintained and developed frontend components, implemented caching, supported deployment and cloud infrastructure.
Technologies: Laravel (PHP), Vue.js, Inertia.js, Alpine.js, React, TypeScript, MongoDB, Redis, AWS, Flutter (Dart), Kotlin, Firebase

Education

IPS - SMA Yos Sudarso metro
High School Diploma
2008 - 2011

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