I help businesses build modern web applications.

With more than 11 years of experience in enterprise application development for financial institutions and government agencies, I design and build robust, secure, and maintainable systems using C#, ASP.NET Core/MVC, and relational databases such as SQL Server, PostgreSQL, and Oracle.

11+ years
Application Development Experience

Enterprise
Web Application, Application Systems

C#, ASP.NET
SQL Server, Oracle, PostgreSQL

About Me

MUHAMAD ROMI PURNAWARMANSYAH

System Analyst · System Engineer · Enterprise Web · .NET Ecosystem

I am a System Analyst and Software Engineer with more than 11 years of experience designing and delivering web-based enterprise systems. Since 2013 I have been working on mission-critical applications for financial institutions and government agencies, including central banking, pension funds, and ministries. I enjoy turning complex business needs into clear, well-structured solutions that are reliable, secure, and maintainable.

My primary stack is C#, ASP.NET Core/MVC, and SQL Server, with extensive experience in PostgreSQL, Oracle Database, and modern front-end frameworks such as Bootstrap and JavaScript. I work end-to-end across the lifecycle: requirements analysis, architecture and database design, implementation, integration, and handover to production teams. In recent years I have also led and mentored development teams, helping organizations build scalable platforms that support their long-term business goals.

Core Skills – Primary Stack

C# / .NET ASP.NET Core ASP.NET MVC REST API SQL Server PostgreSQL Oracle Database Entity Framework Bootstrap JavaScript DevExpress / DevExtreme System Integration System Analysis & Solution Design Technical Leadership

Also Experienced With

VB .NET PHP (CodeIgniter, Laravel) MySQL / MariaDB SSIS SAP PowerDesigner Linux Server Windows Server

Organizations I’ve Worked With

A few of the organizations and institutions I have supported through consulting and project work.

Resume

Experience & Education

See a detailed overview of my professional experience, responsibilities, technologies, and education history.

Open Resume

Projects

Selected Work

Explore a curated list of projects, case studies, and solutions I have delivered for organizations and clients.

View Projects

Let’s Work Together

Need help designing or building an application?

I’m open to collaboration, consulting, and long-term projects. Share your requirements and I will help you translate them into a clear technical solution.

Contact Me