David Pardamean Simatu Pang

Full Stack Software Engineer at PT. Kinnara Digital Studio

Responsible for delivering backend APIs and integrating services with legacy components. Implemented structured and modular business logic using Spring Boot, focusing on long-term maintainability and scalability. Built Flutter-based mobile applications to support field and warehouse operations; collaborated with frontend platforms via RESTful APIs. Managed databases including Oracle DB, Azure SQL, and SQL Server; contributed to CI/CD pipelines using Azure DevOps; wrote clean, testable code and supported debugging.

Full Stack Software Engineer at PT. Kinnara Digital Studio

Delivered backend and frontend APIs for an insurance-claims system, designed modular backend using Spring Boot, and integrated with legacy components. Built scalable microservices and RESTful APIs, implemented CI/CD support, and collaborated closely with frontend and product teams to ensure quality and maintainability.

Full-Stack Software Engineer at PT. Kinnara Digital Studio

Responsible for delivering backend APIs and integrating services with legacy components. Implemented structured, modular business logic using Spring Boot, focusing on long-term maintainability and scalability.

Full Stack Engineer at PT. Kinnara Digital Studio

Developed backend APIs and orchestrated data flows across Oracle DB, PostgreSQL, and SQL Server. Implemented modular business logic, data adapters, and integration with legacy systems. Built Flutter mobile apps for field/warehouse operations, delivered end-to-end features for insurance claims and integrations, and collaborated with frontend teams via RESTful contracts. Established CI/CD practices using Azure DevOps and GitHub, and maintained extensible, testable backend and data services.

Fullstack Software Engineer at Kinnara Digital Studio

Developed and maintained a Web-API Neutinos, Oracle Form, Automation Test using Java Spring boot, Sql, Sql Server, PostgreSql, Oracle Db, Azure Db, Reform 21, Jasper Report, Ci/cd Jenkins. Collaborated with Neutrinos Team to identify technical requirements and delivered solutions tailored to their needs. Utilized Java Spring boot, Oracle Form, Oracle Db, Azure Db, Sql Server, Ci/cd Jenkins, Automation Playwright, Reform 21, Jasper, Postman, Github, Bitbucket, Intellij, and Draw.io diagram for effective project delivery.

Technical Consultant at TBI (Themis Biro Integrasi)

Developed and maintained a web-based POS, Web Form, AddOn system to integrate with SAP B1 use ASP.NET, Net Core, Sql Server, PostgreeSql, Hana Db. Built internal mobile applications using Flutter, enhancing efficiency in client workflows for Sales Canvasing. Collaborated with clients to identify technical requirements and delivered solutions tailored to their needs. Used Visual Studio, Visual Studio Code, IIS, Git & GitHub, SAP B1, SQL Server, HANA SQL, PostgreSQL, Postman, .NET, and C# for development.

Technical Consultant at PT. Themis Biz Pro Integrasi

Implemented ERP modules for administration, sales, and inventory; integrated SAP B1 via DI API and Service Layer; designed custom APIs for seamless data flow between SAP and web platforms; established data governance and role-based access controls; conducted client onboarding and testing; collaborated with frontend teams to deliver scalable solutions.

Technical Consultant at PT. Themis Biz Integrasi

Designed and developed APIs for seamless data flow between web interfaces and SAP systems. Implemented backend logic and data integration with legacy components; contributed to CI/CD using Azure DevOps.

Backend / Full-Stack Developer at PT. Themis Biz Integrasi

Designed and implemented core ERP integration APIs, including data flows across Oracle Forms, SAP B1 components, and multiple databases. Coordinated frontend-backend work, handled change requests, and contributed to CMS/Sitecore integrations. Participated in data migrations and ensured scalability, data integrity, and smooth system collaboration.

Junior Web Developer at BPPTIK

Built web-based ERP modules for administration, sales, and inventory; fully integrated with SAP B1 using DI API and Service Layer; designed custom APIs for seamless data flow; maintained user access roles and data isolation; collaborated with stakeholders and performed testing and deployment.

Senior Web Developer at Xtreme Pte Ltd

Developed web-based ERP modules for Singapore government agencies and financial institutions, focusing on performance, scalability, and maintainability across frontend and backend. Involved in Change Requests across multiple government projects, CR development, and migration tasks. Worked with .NET Core, JavaScript, ASP.NET, Flutter, SAP B1, MongoDB, SQL Server; managed version control with GitHub and Jira; collaborated with cross-functional teams to deliver integrated, scalable solutions.

Associate Software Developer at Xtreamx Pte. Ltd

Developed and maintained government and finance websites, focusing on resolving issues related to bug fixes, change requests, and data migration projects. Simplified deployment processes by creating detailed technical documentation and user guides for the Sitecore system, enhancing user experience and operational efficiency. Utilized ASP.NET, Visual Studio, IIS, Solr, Vue.js, Sitecore, SQL Server, MongoDB, C#, and Postman in projects.

Associate Software Developer at Xtremax Pte Ltd

Implemented ERP module development and contributed to frontend/mobile apps using Flutter. Worked on cross-functional features across frontend and backend with Solr, MongoDB, and SQL stacks; supported CI/CD in Azure DevOps.

Junior Web Developer at PT. Sanjaya Tekno Pratama

Developed a Laravel/CodeIgniter-based tourism application for the Tobaregion using MySQL and GitHub for version control, following Agile Scrum methodology. Implemented tailored features for admin and user interfaces and contributed to backend support and data integrity.

Web Developer at PT. Sannya Tekno Pratama

Developed a web-based tourism application for the Tobare region using Laravel and CodeIgniter, with MySQL. Built admin, frontend, and integration features following Agile practices.

Associate Software Developer at PT. Sanjaya Tekno Pratama

Web-based tourism application for the Tobaregio region, using Laravel and CodeIgniter frameworks, MySQL database, and GitHub for version control, following Agile SCRUM methodology. Built according to client requirements with tailored features for each menu and supported admin and user roles.