Appen

3D & LiDAR Data Annotation Analyst

Anywhere remote Mid Salary not listed
remote Mid level Technology & IT Curated
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About the 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.

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT Operations Lidar Data Annotation Analyst Mid level

Likely questions

  1. Tell us about work you have done that is close to the 3D & LiDAR Data Annotation Analyst role.
  2. How would you approach your first 30 days at Appen?
  3. Which of Operations, Lidar and Data have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you stay organised and communicate clearly when working remotely?

Prepare before the call

  • A recent example that proves your experience with Operations, Lidar and Data.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the 3D & LiDAR Data Annotation Analyst role because I can bring practical experience in Operations, Lidar and Data, learn the team quickly, and contribute to the outcomes Appen needs from this hire.

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