4+ Years Experience
Professional work across internal business apps, backend services, and operational systems.
[01 // Hero]
Hartono.
Software Developer building reliable backend services, internal business applications, and automation tools.
I work with .NET, SQL Server, REST APIs, and modern frontend technologies to build reliable applications that support business operations.
[02 // About]
I'm a Software Developer based in Jakarta, focused on building reliable internal business applications, backend API services, and automation tools.
My work includes developing insurance-related microservices, data synchronization processes, monitoring pages, stored procedures, and document automation tools. I work mainly with .NET, SQL Server, REST APIs, and Vue.js, with growing interest in AI-assisted development and backend architecture.
I enjoy turning business requirements into stable, maintainable applications that support daily operations.
Backend Focus
API services, microservice-based applications, stored procedures, and system integration.
.NET & SQL Server
Core stack for enterprise workflows, data processing, and maintainable services.
Automation
Document generation, data synchronization, and tools that reduce manual work.
[03 // Technical Stack]
Backend
.NET Framework.NET Core.NET 8ASP.NET CoreC#REST APIsSwaggerJWT Authentication
Frontend
Vue.jsComposition APIRazorJavaScriptHTMLCSSTailwind CSS
Database
SQL ServerStored ProcedureQuery DevelopmentQuery OptimizationData Synchronization
Architecture and Practices
Layered ArchitectureRepository PatternService PatternMicroservice-based ApplicationSystem IntegrationAPI Integration
AI and Automation
GitHub CopilotClaudeClaude CodeGeminiCodexPrompt EngineeringAI-assisted Development
Tools
Visual StudioVS CodeGitPostmanSwagger
[04 // Selected Work]
Selected internal projects focused on business context, technical contribution, and operational impact.
Backend / Microservice / Internal Core App
Insurance Service
Designed and developed a new Insurance Service microservice to support insurance cover-related business processes, including backend API services and frontend implementation.
Impact
Helped separate insurance-related processes into a dedicated service, improving maintainability and supporting clearer business workflows.
Used AI-assisted development tools to speed up UI implementation and development workflow.
.NET 6C#SQL ServerREST APISwaggerMicroservice
Full-stack / Data Synchronization / Internal App
Monitoring App
Built a monitoring page to track unsynchronized data between vendor applications and internal applications.
Impact
Improved visibility for operational teams by making synchronization issues easier to identify and follow up.
.NET 8C#SQL ServerVue.jsSwagger
Automation / Document Generation / Internal App
Console App Automation
Developed an internal console application to automatically generate Word and PDF documents for memo creation in the company's EMemo web application.
Impact
Reduced manual document creation work and improved consistency in memo generation.
.NET Framework.NET 8C#SQL ServerWord/PDF Automation
Finance App / Internal System / Integration
Epayment
Enhanced an existing internal finance application by developing upload modules, supporting finance workflows, integrating with other internal systems, and maintaining existing features.
Impact
Supported daily finance operations and improved data flow between internal systems.
.NET FrameworkC#SQL Server
Freelance / Portfolio
thuangarchitect.com
Designed and developed a responsive portfolio website for THUANGARCHITECT, an architecture studio specializing in minimalist private and commercial spaces. The website highlights project showcases, studio information, and contact access through a clean and professional user interface.
Impact
Helped the studio present architectural work through a polished digital portfolio with direct access to project showcases and contact channels.
Next.jsTailwind CSSResponsiveAI Prompt
[05 // Experience]
May 2022 - Present
IT Developer
PT. Mega Central Finance
Developing and maintaining internal business applications, backend API services, stored procedures, monitoring pages, automation tools, and system integration features.
- Designed and developed Insurance Service microservice.
- Migrated legacy console applications to .NET 8.
- Implemented data synchronization between vendor and internal applications.
- Created monitoring pages to track unsynchronized data.
- Developed stored procedures to automate data processing.
- Fixed bugs to improve performance, stability, and reliability.
- Gathered user requirements and translated them into functional and technical designs.
- Collaborated with Project Manager to clarify requirements and align priorities.
- Created and executed system testing.
May 2021 - June 2022
IT MIS
PT. Mega Central Finance
Provided data based on user requests, developed SQL queries, and supported users with data-related problem solving.
- Provided data based on business user requests.
- Developed SQL queries for reporting and operational needs.
- Helped solve data-related issues.