darudev.online
Backend engineering · Indonesia

Building systems
that work.

I build reliable web applications, enterprise systems, and data-driven workflows. Focused on backend engineering, ERP development, and turning complex business processes into maintainable software.

Explore my work ↘ Get in touch ↗
developer.php
<?php
$developer = [
  'role' => 'Backend Developer',
  'focus' => [
    'Enterprise ERP',
    'Database Engineering',
    'Workflow Automation',
  ],
  'mindset' => 'Ship reliable code',
];
?>
15+
Years in development
ERP
Enterprise applications
SQL
Data & performance
Selected work

Systems built for real work.

Practical software focused on business outcomes, maintainability, and reliable data.

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Enterprise

ERP & Business Operations

Integrated business workflows spanning organizational processes, transaction handling, reporting, and operational data.

PHPMySQLBusiness Logic
⌘
HR Technology

Attendance & HRIS

Attendance normalization, daily recaps, leave and travel reconciliation, exception detection, and automated calculations.

CodeIgniter 3SQLAutomation
▤
Data engineering

Database & Reporting

Relational schema design, complex queries, aggregation, indexing strategies, and data-heavy operational reports.

MySQLQuery tuningReporting
↗
Integration

Workflow Automation

Approval processes, system integrations, scheduled jobs, digital signatures, and repetitive-task reduction.

REST APICronIntegration
Technical toolkit

What I work with.

PHPPHP 8.x · CodeIgniter · Laravel
DatabasesMySQL · SQL design · Optimization
BackendREST APIs · Business logic · Batch jobs
InfrastructureLinux · Apache · SSH · Git
Background

Engineering with context.

My work sits at the intersection of software development and enterprise operations. I focus on understanding the business rules behind a system, implementing them accurately, and keeping the resulting application practical to maintain.

From legacy application improvements to database-heavy features, my approach is straightforward: understand the problem, write clear code, validate the data, and measure the result.

Backend developmentSystem analysisTechnical mentoring
Technical Lead / System Analyst2022 — Present

Enterprise application development, requirements analysis, code review, and technical guidance.

Senior Web Application Developer2018 — 2022

Business application development, system maintenance, and data-intensive features.

Web Application Developer2014 — 2018

Backend features, integrations, and enterprise web systems.

Junior Web Developer2010 — 2014

Foundations in web development and application support.

Let's work together

Have a backend problem to solve?

Open to suitable backend development, ERP, database, and application engineering opportunities.

Contact me ↗