I will do iot simulation and fix your java or PHP programming code

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alexstore01
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alexstore01
Alexander J

About this gig

Professional Web System Developer & IoT Specialist


Are you looking for a dedicated developer to build a custom system or fix complex bugs? I am a software developer specializing in PHP, MySQL, and Java. I provide high-quality coding solutions optimized for Localhost environments (XAMPP/WAMP/Eclipse).


What I Can Do For You:


1. Web Development (PHP & MySQL)

Build custom management systems (Inventory, Sales, Admin Panels).

Create professional Portfolios or Business websites.

Secure User Authentication & Database Integration.


2. Java Programming

Desktop application development using Java Eclipse.

Implementing Repository patterns and OOP.


3. Bug Fixing & Optimization

Troubleshooting PHP/MySQL/Java errors.


Database schema design and query optimization.


4. IoT Simulation

ESP32 and Arduino simulations via Wokwi.


Why Choose Me?

Clean Code: Structured and easy to maintain.

Localhost Specialist: Perfect for students or business owners needing local systems.

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Get to know Alexander J

Alexander J

FullStack Web Development and IoT Systems

  • FromIndonesia
  • Member sinceMar 2026
  • Avg. response time1 hour
  • Languages

    Indonesian
I am an Information Technology student specializing in Full-Stack Web Development and IoT Systems. I have hands-on experience building database-driven web applications using PHP & MySQL, including Sales, Information, and Administrative systems. On the hardware side, I expert in IoT simulations using ESP32 & Arduino. I have successfully developed smart temperature sensors, sound-activated devices, and digital safe box security simulations. I am committed to delivering clean code and high-quality functional prototypes to help you bring your technical projects to life.