$ whoami

Rosidin — I build the backend that keeps everything else standing.

Freelance software engineer from Indonesia, 8+ years shipping web & API systems on C#/.NET, Sitefinity, Laravel and SQL Server for clients across Singapore and beyond.

View my work Chat on WhatsApp
C# / .NET Sitefinity SQL Server MySQL Laravel / PHP Web API
request_flow.svg
Client browser / mobile Web API REST endpoint .NET MVC / Laravel application logic SQL Server / MySQL database layer Sitefinity CMS module
status: 200 OK latency: ~stable
Rosidin profile photo // rosidin.bima
01 — about

Turning ideas into systems that run quietly in the background.

I'm a passionate software developer with experience building web and mobile applications — the kind of work that mostly gets noticed when it breaks, so I try to make sure it doesn't.

I like solving problems end to end: designing the database, wiring the API, and shipping the interface that sits on top of it. Currently working with IP Technology Solutions Pte Ltd on ASP.NET MVC and Sitefinity projects for clients across Singapore.

8+YEARS EXPERIENCE
3+MAJOR PLATFORMS SHIPPED
SG / IDCLIENTS SERVED
Chat Me
02 — skills

The stack behind the systems.

Backend-leaning, framework-agnostic where it needs to be — six tools I reach for most, from CMS platforms to raw database design.

C#
.NET Framework

.NET Framework

MVC architecture, C# services, enterprise-grade backend systems.

Sitefinity
CMS

Sitefinity

Custom modules, widgets and templated content for enterprise CMS builds.

SQL
RDBMS

SQL Server / MySQL

Schema design, query tuning, and data modelling for production systems.

PHP
Framework

Laravel

Rapid API and web app development on Laravel and vanilla PHP.

JS
Frontend

JavaScript / jQuery

Interactive front-end behaviour layered cleanly on top of backend logic.

API
REST

Web API

Designing and consuming REST endpoints that connect real systems together.

03 — projects

Selected work.

A few production platforms I've helped design, build or maintain.

cop-pavilion.gov.sg
COP Pavilion logo

COP Pavilion

View project
crfsingapore2026.com
CRF Singapore logo

CRF Singapore

View project
register.expandspace.com
Expand Registration Portal logo

Expand Registration Portal

View project
04 — career

Career log.

One long-running engagement, a lot of shipped commits.

Software Developer

IP Technology Solutions Pte Ltd · 2015 — Present
feat: website applications

Developing website applications using ASP.NET MVC and Sitefinity.

feat: database design

Designing relational databases and schemas using SQL Server.

chore: team collaboration

Collaborating with a cross-functional team to produce quality software.

05 — contact

Let's build something.

Open for freelance and long-term backend engineering work.

contact.sh
$ echo $EMAIL
rosidin.bima@fingercreation.com
$ echo $WHATSAPP
+62 852-1349-0116
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