Software Engineer, PHP

3 days ago

Belgrade, Central Serbia Alignerr Full time


 is a community of subject matter experts from several disciplines who align AI models by creating high-quality data in their field of expertise to build the future of Generative AI. Alignerr is operated by Labelbox. Labelbox is the leading data-centric AI platform for building intelligent applications. Teams looking to capitalize on the latest advances in generative AI and LLMs use the Labelbox platform to inject these systems with the right degree of human supervision and automation. Whether they are building AI products by using LLMs that require human fine-tuning, or applying AI to reduce the time associated with manually-intensive tasks like data labeling or finding business insights, Labelbox enables teams to do so effectively and quickly.

Current Labelbox customers are transforming industries within insurance, retail, manufacturing/robotics, healthcare, and beyond. Our platform is used by Fortune 500 enterprises including Walmart, Procter & Gamble, Genentech, and Adobe, as well as hundreds of leading AI teams. We are backed by leading investors including SoftBank, Andreessen Horowitz, B Capital, Gradient Ventures (Google's AI-focused fund), Databricks Ventures, Snowpoint Ventures and Kleiner Perkins.


About the Role

Shape the future of AI — with PHP As an AI Tutor - PHP, you'll work to improve the performance of AI systems in understanding and generating clean, maintainable PHP code. This is your chance to combine your backend expertise with AI innovation.

Your Day to Day
  • Evaluate AI-generated PHP code for best practices, performance, and readability.
  • Write elegant and functional PHP code to solve backend problems.
  • Explain logic, approaches, and edge case handling in easy-to-follow summaries.
  • Support the development of models capable of assisting real-world developers.
About You
  • Fluent in English with the ability to clearly communicate programming concepts.
  • Expertise in PHP: Familiarity with Laravel, Symfony, or other PHP frameworks; understanding of HTTP, APIs, and MVC patterns.
  • 3-5 years of backend development experience is a plus.
  • Bachelor's degree (or pursuing one) in Computer Science or related field. Master's or PhD preferred.
  • Enthusiastic about AI and excited to shape its evolution through real-world programming experience.


Alignerr strives to ensure pay parity across the organization and discuss compensation transparently. The expected hourly rate range for United States-based candidatesis below. Exact compensation varies based on a variety of factors, including skills and competencies, experience, and geographical location.


Pay Range (rate per hour)
$15—$150 USD

Important Information

This is a freelance position compensated on an hourly basis. Please note that this is not an internship opportunity. Candidates must be authorized to work in their country of residence, and we do not offer sponsorship for this 1099 contract role. International students on a valid visa may be eligible to apply; however, specific circumstances should be discussed with a tax or immigration advisor. We are unable to provide employment documentation at this time. Compensation rates may vary for non-US locations.


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