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3D & LiDAR Data Annotation Analyst
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- Remote from
- 🌐 Anywhere
- Salary
- USD 30–32 / hour
- Department
- Data Science & Analytics
- Employment
- Full Time
- Experience
- Open level
- Published
- Apply before
- 3 Nov 2026
- Listing views
- 158
- Application actions
- 16
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The role, at a glance.
This role produces high-quality ground-truth data for machine-perception models by annotating imagery, video, and LiDAR point clouds. The analyst labels 2D and 3D objects, segmentation, tracking, poses, and keypoints while following detailed specifications. Success depends on sustained visual accuracy, spatial reasoning, consistent throughput, and effective use of specialized annotation software. The position also requires documenting ambiguous scenes, sensor artifacts, tooling problems, and specification gaps for QA and process improvement. Familiarity with point clouds, sensor fusion, GIS, surveying, AutoCAD, robotics, or autonomous-vehicle datasets is beneficial.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Pace & Pressure
4/5Autonomy Level
3/5Communication Load
3/5Salary analysis
Estimated compensation compared with the broader US market for similar roles.
Core skills
Skills and capabilities most closely associated with this opportunity.
Sample interview questions
I would apply the documented occlusion and inclusion rules, label only the supported visible geometry, and preserve the object identity where the guidelines allow it. If the scene remains ambiguous, I would flag it with clear evidence rather than make an unsupported assumption.
I use a consistent review routine, verify labels against the specification before submission, and use shortcuts and tool features to work efficiently without bypassing checks. I also monitor recurring errors and adjust my workflow early.
I would document the affected task or frame, describe the observed behavior and expected behavior, provide reproducible steps, note the data type or sensor involved, and attach screenshots or examples when permitted.
I would maintain a consistent identity across frames, account for motion and temporary occlusion, verify the object’s position and boundaries frame by frame, and follow the defined rules for entries, exits, and lost tracks.
I would review the feedback and the relevant guideline carefully, ask for clarification through the established process if needed, and apply the confirmed interpretation consistently in future tasks. I would also suggest an example or clarification for the edge-case documentation.
About this role.
About the Role
We’re building high-quality ground-truth datasets used to train and validate perception models for autonomous and operator-assisted machines working in complex, real-world environments.
As a Data Annotation Analyst, you’ll work with camera imagery, video, and LiDAR point clouds to create precise labels that help perception systems understand objects, people, terrain, and surrounding environments. You’ll work in specialized annotation tools, following detailed specifications while balancing accuracy, consistency, and production volume.
Your Impact
- Annotate 2D and 3D objects across images, video, and LiDAR point clouds, including vehicles, machinery, people, signage, and environmental features.
- Create and maintain accurate segmentation, object tracking, pose, and keypoint annotations across sequences.
- Apply detailed annotation guidelines, including class definitions, occlusion rules, object thresholds, and inclusion/exclusion criteria.
- Review your work, respond to QA feedback, and maintain established quality and accuracy standards.
- Identify and escalate ambiguous scenes, sensor artifacts, tooling issues, and gaps in specifications rather than making assumptions.
- Document data quality and tooling issues with clear details and reproduction steps.
- Participate in calibration sessions, guideline reviews, and team standups to maintain consistent interpretations.
- Share observations that help improve annotation guidelines, taxonomies, and edge-case documentation.
Success in this role means producing accurate, consistent annotations at the expected volume while helping maintain a reliable, high-quality dataset.
What You Bring
- Strong attention to detail and the ability to maintain accuracy while performing repetitive, visually intensive work for extended periods.
- Strong spatial reasoning skills, including the ability to interpret 3D environments and understand object size, position, and orientation.
- Ability to learn and navigate complex, purpose-built software and become productive with keyboard shortcuts and other tooling features.
- Experience working in a fast-paced, scaled environment with defined productivity, quality, or accuracy targets.
- Experience with image annotation GenAI workflows
- Reliable high-speed internet, a distraction-free workspace, and the ability to work on a company-provisioned machine within a controlled environment.
Nice to Haves
- Associate or bachelor’s degree.
- Experience with image, video, LiDAR, or 3D annotation tools.
- Experience with subsurface utility engineering (SUE), construction surveying, surveying, GIS, or other work involving spatial interpretation of physical environments.
- Experience with AutoCAD or similar type tools
- Experience in construction, mining, agriculture, industrial operations, or heavy equipment environments.
- Familiarity with point cloud data, sensor fusion, or camera-LiDAR calibration.
- Experience working with autonomous vehicles, robotics, or machine perception datasets.
Compensation
Additional Information
Why You’ll Love Working Here
At Appen, we foster a culture of innovation, collaboration, and excellence. We value curiosity, accountability, and a commitment to delivering the highest-quality AI solutions for frontier models.
You’ll work on complex challenges that shape the future of AI across industries and geographies, alongside talented people in a culture that values humility over ego. You’ll have the flexibility to deliver in a way that works for you and your team, supported by tools, resources and development opportunities to continue to build your capability over time.
About Appen
Appen has been a leader in AI training data for over 30 years. We specialise in human generated data to train, fine tune, and evaluate models across generative AI, large language models, computer vision, and speech recognition. Our AI assisted data annotation platform and global crowd of more than 1 million contributors in over 200 countries support model pre-training, supervised fine tuning, evaluation and benchmarking, safety and red teaming, and multilingual global expansion.
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