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PHP Developer
Location
California
Posted
4 days ago
Salary
$20 - $110 / hour
Seniority
Senior
Job Description
PHP Developer
The Blond HR
• Join a dynamic and fast-growing AI infrastructure company that collaborates with Fortune 100 clients. • Accurately identify, classify, and annotate entities within PDF documents. • Assess solutions for correctness, clarity, security, performance, and adherence to the prompt. • Identify issues in application architecture, data modeling, API design, security, caching, and database usage. • Write strong explanations and model solutions that demonstrate best practices. • Evaluate, rank, and provide feedback on AI responses to improve correctness, security, readability, and contextual fit. • Ensure model integrity by testing AI outputs for inaccuracies, unsafe practices, and potential biases.
Job Requirements
- Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent professional experience).
- 4+ years of professional experience developing production backend systems in PHP.
- Expert-level proficiency in modern PHP (7.4/8.x+), including OOP, strict typing, namespaces, Composer, and common design patterns.
- Strong backend fundamentals: HTTP, REST, authentication/authorization, sessions, caching, queues, and API design.
- Deep experience with databases (e.g., MySQL/PostgreSQL), including schema design, indexing, query optimization, and transactions.
- Experience with at least one major PHP framework (e.g., Laravel, Symfony) and knowledge of dependency injection, middleware, and ORM tradeoffs.
- Security mindset with hands-on knowledge of secure coding practices (e.g., OWASP Top 10, input validation, SQL injection, XSS, CSRF, secrets handling).
- Comfort with version control, CI/CD workflows, and automated testing (e.g., PHPUnit, integration tests, mocking strategies).
- Prior experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
- Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
- Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle bugs in complex PHP/backend systems.
Benefits
- Shape the Future of AI
- Your Schedule, Your Rules
- Weekly Pay
- Community Rewards
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