You will get a diagnosis and fix for your PHP, Laravel, or CodeIgniter application
Project details
When a PHP application breaks, the real cost is usually not the visible error—it is lost orders, manual work, or unreliable operations. I will diagnose the root cause and implement a focused, production-ready fix for PHP, Laravel, or CodeIgniter applications.
I have 20+ years of daily programming experience and lead ECOM01, where we build and maintain e-commerce systems, ERP/BizniSoft integrations, multistore workflows, APIs, performance optimizations, and managed infrastructure.
This project is designed for clearly scoped bugs, regressions, API or integration failures, database issues, and performance-related defects. I make the smallest safe change, test affected flows, and provide concise documentation. For unclear or larger problems, choose the tier that allows deeper investigation or multiple related fixes.
Please do not include passwords in the initial requirements. Temporary least-privilege access can be arranged after the contract starts when needed.
I have 20+ years of daily programming experience and lead ECOM01, where we build and maintain e-commerce systems, ERP/BizniSoft integrations, multistore workflows, APIs, performance optimizations, and managed infrastructure.
This project is designed for clearly scoped bugs, regressions, API or integration failures, database issues, and performance-related defects. I make the smallest safe change, test affected flows, and provide concise documentation. For unclear or larger problems, choose the tier that allows deeper investigation or multiple related fixes.
Please do not include passwords in the initial requirements. Temporary least-privilege access can be arranged after the contract starts when needed.
What's included
| Service Tiers |
Starter
$300
|
Standard
$650
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 1 | 1 | 2 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Frequently asked questions
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JC
J C.
Nov 7, 2013
Website With Full Width Slider Development
Well done on getting together the overall functionality and features that our site required, although project completion got delayed.
JC
J C.
Aug 10, 2013
Wordpress Site - Move to New Host
A good dev to work with. Nice attitude and quality of work is great. We paid more than what we agreed on the contract - simply deserved it. We've just invited him for another dev job offer so looking forward to working with him again.
CC
Corneilous C.
Aug 5, 2013
Fixed current web site
Now this is an awesome dude. He turned my website into a piece of art, his WordPress skills and quick turnaround time is what makes him successful. Although this is his first job for me, I am looking forward to hiring him again!
About Daniel
E-commerce Systems Expert | PHP, Laravel, WooCommerce, APIs
Subotica, Serbia - 8:34 pm local time
I bring more than 20 years of continuous hands-on development. Programming has been a daily discipline for me since age 10. I am the owner and technical lead of ECOM01 DOO, the specialized Serbian software company that grew from ECOM Profit, established in 2019. ECOM01 is officially listed by BizniSoft as an integration partner, and on Upwork you work directly with me as the accountable technical lead.
I can help with:
• Custom B2B and B2C e-commerce systems
• WooCommerce, WordPress, PHP, Laravel, and CodeIgniter 3 development
• ERP/BizniSoft integrations for products, prices, inventory, customers, orders, and documents
• Multi-store, warehouse, WMS/PDA, barcode, picking, packing, and stock-transfer workflows
• Courier, payment gateway, invoicing, reporting, REST API, and webhook integrations
• MySQL, PostgreSQL, and Microsoft SQL Server architecture and optimization
• Core Web Vitals, caching, database, server, and checkout performance
• Linux, Docker, deployment automation, monitoring, backups, and production troubleshooting
• GA4, GTM, Meta CAPI, server-side events, and attribution connected to real business workflows
Selected outcomes:
• Connected an e-commerce operation with 9 stores and a central warehouse, including approvals, stock transfers, WMS/PDA, packing, and courier delivery
• Reduced stocktaking from roughly 7 days to about 3 hours using 5 PDA devices integrated with ERP workflows
• Helped a WooCommerce operation reach up to 450 parcels per day with 2 warehouse workers, compared with an earlier manual pace of roughly 30 parcels per day for one experienced worker
I am strongest when a project has operational complexity and needs someone who understands both the code and the business process behind it. I focus on clearly scoped fixed-price work: integrations, performance improvements, legacy modernization, technical rescue, and new modules for existing systems.
If the problem is not fully understood yet, start with a paid diagnostic milestone. I will map the current flow, identify the root cause and risks, and define the practical implementation plan before development begins.
To get a useful first response, send:
1. What happens now
2. What should happen instead
3. Your stack and connected systems
4. Relevant errors, logs, screenshots, or URLs
Steps for completing your project
After purchasing the project, send requirements so Daniel can start the project.
Delivery time starts when Daniel receives requirements from you.
Daniel works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce and diagnose the issue
I review the supplied context, reproduce the problem safely, inspect logs and code, and confirm the root cause and scope.
Implement and test the fix
I implement the smallest safe change, test the affected and related flows, and verify compatibility, security, and performance.