Interactive annotation calibration example
About Meridian Autonomy
Meridian Autonomy builds perception systems for autonomous heavy equipment operating across construction and mining sites nationwide. The company partners with leading equipment manufacturers to bring machine-learning-driven safety systems to hazardous work environments, and has annotated more than 40 million frames of multi-camera sensor data to date. Meridian Autonomy is expanding its annotation program to support a new generation of LiDAR-fused perception models, and is contracting the review work through Meridian Data Partners.
About the Opportunity
Meridian's annotation network is composed of in-house reviewers and contract specialists working directly inside CVAT and our internal QA tooling. With calibrated rubrics, a supportive review pipeline, and regular coaching from senior annotators, being part of the network is a chance to do meticulous, detail-oriented work that directly shapes how a model performs in the field.
As a contract Senior Annotation Specialist, you will provide frame-level cuboid annotation. This role emphasizes core competencies such as spatial reasoning, edge-case judgment, rubric adherence, and cross-frame consistency to ensure the highest standard of dataset quality.
Responsibilities:
- Annotate rotation-aware 3D cuboids across synchronized multi-camera frames
- Flag occlusion, truncation, and sensor artifacts according to the labeling rubric
- Review peer annotations and reconcile disagreements during weekly calibration sessions
- Experience and commitment to providing accurate, consistent spatial annotation that follows internal quality guidelines
Requirements:
- Graduate from an accredited program in Computer Science, Robotics, or a related field; OR equivalent hands-on annotation experience with preference for a Certified Data Annotation Specialist credential
- Reliable access to a dual-monitor annotation workstation
- A minimum of 1 year of annotation experience
- Strong preference for annotators with an active CVAT proficiency certification
- Must be available for weekly calibration reviews