AI Data Labeler

Mashgin·Remote(United States)
AI & Machine Learning
Excel

WFA Digital Insight

As demand for AI and machine learning specialists grew 27% in 2025, companies like Mashgin are seeking skilled data labelers to drive their computer vision pipelines. With a strong foundation in data annotation, you can unlock the full potential of AI systems. In this role, you'll be the backbone of Mashgin's computer vision technology, working closely with cross-functional teams to refine and improve the accuracy of their product identification systems. Before applying, consider how your attention to detail and experience with annotation tools can help drive Mashgin's mission to revolutionize the checkout experience.

Job Description

About the Role

Mashgin is seeking an AI Data Labeler to serve as the ground truth backbone of its computer vision pipeline. This role is crucial in ensuring the accuracy and reliability of Mashgin's product identification systems, which power the world's best checkout experiences for over 40 million users. As an AI Data Labeler, you will work closely with the machine learning team, hardware engineers, and other stakeholders to refine and improve the computer vision technology.

The successful candidate will have a keen eye for detail and a strong understanding of data annotation principles. You will be responsible for labeling images and video frames with bounding boxes, polygons, segmentation masks, and SKU-level classifications, ensuring that the data is accurate and consistent.

Mashgin is a well-funded Series B startup that is already profitable, with a culture of extreme ownership, autonomy, and customer obsession. As a member of the team, you will have the opportunity to work on cutting-edge technology, collaborate with talented professionals, and see the direct impact of your work on the company's mission.

What You Will Do

  • Label images and video frames with bounding boxes, polygons, segmentation masks, and SKU-level classifications
  • Annotate edge cases, including occlusion, overlapping items, glare, motion blur, and unusual product orientations
  • Maintain consistency against the labeling taxonomy and follow detailed annotation guidelines
  • Tag training, validation, and test data to support model development and evaluation
  • Compare model predictions to ground-truth labels and document failure modes
  • Audit annotations from peers and contractors to enforce inter-annotator agreement
  • Flag systemic issues such as recurring misclassifications, mislabeled SKUs, or low-quality captures
  • Review confusion matrices and error reports with the ML team to prioritize fixes
  • Identify capture issues that indicate hardware problems: blurry frames, poor lighting, color shifts, dropped frames, or camera misalignment
  • Test devices in lab and field conditions to confirm image quality and end-to-end checkout accuracy
  • Reproduce and document software bugs surfaced by labeling workflows or production telemetry

What We Are Looking For

  • 2+ years of experience labeling data for computer vision, robotics, autonomous vehicles, or medical imaging
  • Exceptional attention to detail and high tolerance for repetitive, precision-oriented work
  • Experience with annotation tools such as CVAT, Labelbox, SuperAnnotate, Scale, or in-house tooling
  • Comfort following detailed written guidelines and documenting ambiguous cases instead of guessing
  • Strong written communication for clear, structured QA reports and Slack updates
  • Comfort working with images and video from physical devices, and reasoning about visual edge cases
  • Proficiency in Excel or other data analysis tools
  • Strong analytical and problem-solving skills

Nice to Have

  • Prior experience labeling data for computer vision, robotics, autonomous vehicles, or medical imaging
  • Working knowledge of ML eval metrics and concepts
  • Experience with data quality control and assurance
  • Familiarity with Agile development methodologies

Benefits and Perks

  • Opportunity to work on cutting-edge computer vision technology
  • Collaborative and dynamic work environment
  • Flexible working hours and remote work options
  • Professional development and growth opportunities
  • Access to the latest tools and technologies
  • Comprehensive health insurance and benefits package
  • Generous paid time off and holidays
  • Stock options and equity participation

How to Stand Out

  • Tip: Showcase your attention to detail by providing specific examples of your data annotation experience and how you ensured accuracy in your previous roles.
  • Be prepared to discuss your experience with annotation tools and how you have used them to drive the development of computer vision models.
  • Tip: Demonstrate your understanding of data quality control and assurance by describing your process for identifying and addressing errors or inconsistencies in datasets.
  • Highlight your ability to communicate complex technical concepts effectively, both in writing and verbally.
  • Tip: Research Mashgin's products and services to understand how your role as an AI Data Labeler contributes to the company's mission and goals.
  • Be prepared to discuss your experience working with cross-functional teams and how you have collaborated with stakeholders to drive project success.

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