Data Annotator

About the company

Horizon Surgical Systems is building an AI-enabled, imaging-guided surgical robotic platform focused on ophthalmology. The company’s mission is to broaden access to care, improve what surgeons can do, and deliver better outcomes for patients. Its technology is aimed at areas of surgery such as microsurgery and ophthalmology, where robotics can improve dexterity, precision, accuracy, and visualization beyond human capability.

The team is looking for curious, driven people who want to contribute to healthcare through advanced robotic technology. The company values excellence, innovation, collaboration, constructive feedback, and personal accountability.

Why join

• Chance to help develop autonomous surgical robotics powered by image guidance and AI for more affordable, high-quality healthcare.
• Exposure to work with clinicians, engineers, and global experts in AI, imaging, and robotics.
• Competitive pay, company-funded benefits, equity, and paid time off.

Role overview

As a Data Annotator, you will support the handling, organization, and review of diverse datasets. You will also contribute to creating training materials and guides, perform annotation tasks, and help coordinate with external labeling vendors.

Responsibilities

• Examine and evaluate labeled surgical data for quality and consistency.
• Develop, update, and refine annotation tutorials and process documentation.
• Support training for external labelers and contracted labeling teams.
• Share information clearly and efficiently with outsourced labeling partners.
• Prepare data for labeling and choose suitable items for annotation.

Requirements

• Bachelor’s degree is required.
• Academic exposure to computer science or biology is preferred.
• Comfortable using computers and general digital tools.
• Working knowledge of Linux and/or Windows operating systems.
• Strong command of English, including grammar.
• Excellent attention to detail and strong analytical ability.
• Good problem-solving and organizational skills.
• Effective communication skills for working with software engineers, hardware engineers, clinicians, and project managers.
• Ability to recognize patterns in complex data and present findings in a structured way.

Compensation and benefits

The base salary for this position is $60,000 to $80,000 per year. In addition, the role includes a performance-based annual bonus, stock options, a comprehensive benefits package, and a generous PTO policy.

Additional information

This is a full-time, onsite position based in Los Angeles, California.

The role is part of a high-tech startup working to advance surgical robotics in ophthalmology.