Software Engineer, C++

1 week ago

Zagreb, City of Zagreb, Croatia 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 C++ As an AI Tutor - C++, you'll help train and evaluate AI models, ensuring they produce high-quality and reliable C++ code. You'll apply your deep knowledge of C++ programming principles to solve problems and guide the next generation of intelligent systems.

Your Day to Day
  • Review and assess AI-generated C++ code for accuracy, style, and efficiency.
  • Write robust C++ solutions across domains including algorithms, systems programming, and game development.
  • Create clear, human-readable summaries of your solutions and evaluation decisions.
  • Flag edge cases and provide constructive feedback on ambiguous code scenarios.
About You
  • Fluent in English with excellent technical writing skills.
  • Expertise in C++: Knowledge of modern C++ (C++11 and above), STL, OOP, memory management, and templates.
  • 3-5 years of experience in C++ domains such as systems programming, finance, or game engines is a plus.
  • Bachelor's degree (or pursuing one) in Computer Science or a related field. Master's or PhD preferred.
  • Curiosity and passion for AI, machine learning, and programming languages.


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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