Data Labeling Specialist – Full Time

About the role

Zipline is the world’s largest drone delivery service, operating autonomous logistics across four continents. The Data Labeling Specialist will support global operations by converting raw sensor data into high‑quality training datasets for machine‑learning models that power the perception system of Zipline’s aircraft.

Key responsibilities

• Label and review data from multiple sensor streams using internal and external tools, adding the metadata needed for machine‑learning applications.
• Build expertise across different sensor‑data workflows and apply annotation guidelines consistently to produce accurate, complete, and high‑quality labeled datasets.
• Identify data anomalies, edge cases, recurring ambiguities, and opportunities to improve labeling and review processes.
• Document and escalate quality, tool, or system issues that may affect labeling accuracy, throughput, or downstream perception development.
• Deliver high‑quality labeled datasets on a regular cadence to support critical algorithm development.

Required profile

• Strong attention to detail and ability to follow annotation guidelines consistently.
• Analytical mindset to spot edge cases and data‑quality issues.
• Effective communication skills to provide clear feedback to autonomy partners.

Required skills

• Experience with data annotation and labeling of sensor data.
• Familiarity with machine‑learning data pipelines.
• Ability to work with multi‑modal data such as video, lidar, and radar.