PHP Developer
Summary
Consultant for a 4-month, 100% remote B2B engagement modernizing a PHP application: validating behavior after PHP version upgrades, doing code reviews and functional/API validation, and improving technical documentation. Core stack: PHP (5+ years), MySQL, REST/SOAP APIs, optionally PHPUnit and Symfony/Laravel.
Project Details
Contract duration: 4 months
Remote work: 100%
No business travel
Own equipment required
B2B contract
Rate: 50-160 PLN/h
About the project
We are looking for an experienced consultant to support a PHP application modernization initiative. The main goal is to validate application behavior after upgrading the codebase to a newer PHP version, ensure overall code quality, and improve technical documentation.
The ideal candidate combines strong PHP development knowledge with a QA-oriented mindset and is comfortable reviewing code, identifying compatibility issues, performing functional validation, and documenting technical changes.
Responsibilities
Analyze existing PHP codebases and identify potential compatibility issues after PHP upgrades.
Perform functional and technical validation of applications following code modernization.
Execute code reviews and recommend improvements.
Create and maintain technical documentation describing application behavior and implemented changes.
Work closely with developers to resolve issues identified during testing and validation.
Validate integrations, APIs and business-critical functionality impacted by version upgrades.
Support knowledge transfer and documentation activities.
Requirements
Must Have
5+ years of experience with PHP development.
Strong understanding of legacy PHP applications and version migrations.
Experience reviewing PHP code and validating application functionality.
Good technical documentation skills.
Experience with MySQL.
Experience working with APIs (REST/SOAP).
Strong analytical and problem-solving skills.
Ability to work independently.
Nice to Have
Previous QA or Software Quality experience.
PHPUnit experience.
Experience with Symfony, Laravel or similar PHP frameworks.
Experience documenting legacy systems.
Experience performing application modernization projects.