PHP Coding Specialist – Freelance AI Trainer

Invisible Technologies

. Converse with language models on software engineering tasks and technical scenarios using PHP .

Posted 11/5/2026contractRemote • United StatesMid-LevelSenior💰 $6 - $65 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates fluent PHP coding expertise with a strong understanding of algorithms, data structures, and software architecture. Proficient in RESTful API development, secure coding practices, and debugging distributed systems while effectively communicating technical concepts.

Highest-signal resume keywords

Fluent PHP Coding ExpertiseObject-Oriented DesignRESTful API DevelopmentSecure Coding PracticesDebugging Distributed Systems

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AlgorithmsData StructuresSoftware ArchitectureBackend DevelopmentCloud InfrastructureModern PHP Application DesignPHP Runtime BehaviorAsynchronous PatternsTechnical WritingOpen-Source Contributions

Soft Skills

Clear CommunicationMetacognitive Communication

Certifications & Qualifications

Bachelor's Degree in Computer ScienceMaster's Degree in Computer SciencePhD in Computer Science

Industry Keywords

PHPRESTful APIsSecure CodingDistributed SystemsEvent-Driven Libraries

Tech Stack

Tools & technologies

CloudDistributed SystemsPHP

About the role

Key responsibilities & impact

Converse with language models on software engineering tasks and technical scenarios using PHP
Verify logical accuracy and coding fluency
Assess code quality and clarity
Capture reproducible error traces
Suggest improvements to prompt engineering and evaluation metrics
Challenge advanced language models on object-oriented design, RESTful APIs, secure coding, PHP runtime behavior, asynchronous patterns, and distributed-systems debugging
Document failure modes to improve model reasoning

Requirements

What you’ll need

Fluent PHP coding expertise
Expertise in algorithms, data structures, software architecture, backend development, cloud infrastructure, and modern PHP application design
Fluency with object-oriented design
Experience with RESTful API development and integration
Knowledge of secure coding practices
Understanding of PHP runtime behavior and memory usage in long-running processes
Experience with asynchronous patterns using queues, workers, or event-driven libraries
Experience debugging distributed systems
Clear, metacognitive communication and ability to show your work
A bachelor’s, master’s, or PhD in computer science, software engineering, or a closely related technical field is ideal
Real-world PHP experience, technical writing, or open-source contributions signal fit

Benefits

Comp & perks

Contractor supplies a secure computer and high-speed internet
Company-sponsored benefits such as health insurance and PTO do not apply