Develop and maintain comprehensive technical documentation (e.g., architecture diagrams, data flow processes, user manuals, API documentation). Collaborate closely with Data Engineers, Solution Architects, and Project Managers to gather information and validate technical content. Standardize documentation formats and ensure alignment with internal and external compliance standards. Document best practices and governance policies related to the Data Lake platform.

Develop, maintain, and enhance web applications using .NET technologies. Collaborate with cross-functional teams to define, design, and implement new features. Write clean, scalable, and efficient code following best practices and design patterns. Perform testing, debugging, and performance optimization to ensure high-quality deliverables. Support deployment processes, troubleshoot issues, and contribute to continuous system improvements.

Design, develop, and maintain end-to-end web applications using .NET Core / ASP.NET (backend) and Kendo UI (frontend). Build, document, and maintain RESTful APIs for system integration and external consumption. Develop interactive, data-driven UI components using Kendo UI to ensure a rich and responsive user experience. Collaborate closely with UI/UX designers, product owners, business analysts, and other developers to align solutions with business needs. Perform testing, debugging, and performance optimization to ensure system reliability and scalability. Implement secure authentication and authorization mechanisms using JWT and OAuth2. Write and maintain technical documentation and ensure adherence to coding standards. Participate in code reviews, sprint planning, and continuous improvement processes. Support deployment, monitoring, and troubleshooting in production environments.

Develop and maintain backend systems using Java and related frameworks such as Spring (Spring Boot, Spring MVC) and Hibernate. Design and implement RESTful APIs and microservices architecture. Optimize database performance and write efficient queries for MySQL, PostgreSQL, or NoSQL databases (e.g., MongoDB). Work with distributed systems, message queues (RabbitMQ, Kafka, AMQ), and asynchronous programming. Ensure the application follows OOP principles, design patterns, and clean code best practices. Implement containerization using Docker and orchestration with Kubernetes. Set up and manage CI/CD pipelines using tools like Jenkins and GitLab CI. Optimize multithreading and concurrency in Java applications. Collaborate with frontend developers, DevOps, and product managers to deliver complete software solutions. Leading Team, Mentor & Manage developers, review code, and enforce coding standards.

Design large scale enterprise / Telco network infrastructure. Create a Bill of Material and proposal of the proposed solution. Perform Proof of Concept of Network Solution. Deploy and implement large scale network infrastructure. Perform Network Troubleshooting and Fine Tuning. Prepare technical documentation.

Assist Head of IT in problems resolving and work closely on further IT development, planning and budgeting. Provide full range of information technology support activities for YonMing Group - Indonesia, such as desktop hardware and applications support, network administration, office network security and protection. Provide first-line support for hardware, software, and network-related issues Assist with the installation, configuration, and maintenance of computer systems and peripherals Troubleshoot and diagnose technical problems, and implement appropriate solutions Collaborate with the IT team to implement and maintain IT policies and procedures Provide training and guidance to end-users on the effective use of IT systems and applications Maintain accurate documentation and records of all support activities Participate in the continuous improvement of IT processes and services Provide support and training for ERP system and in-house application (Training will be provided) Provide support and training for Vehicle Diagnostic System (Training will be provided)

Mengembangkan, menguji, dan memelihara API menggunakan Python & FastAPI. Merancang dan mengoptimalkan struktur database (PostgreSQL & MySQL). Mengimplementasikan ORM (SQLAlchemy) untuk manajemen data. Troubleshooting bug, error, dan peningkatan performa aplikasi. Berkolaborasi dengan tim frontend untuk integrasi sistem. Menulis dokumentasi teknis terkait API dan arsitektur backend.