Alexander Chen

Data Annotator at TELEWORKPH INC. (2024-07 – 2026-07)

Review and annotate image and text data by identifying specific entities, keywords, categories, sentiments, or other required information.
Classify and categorize image and text according to established annotation guidelines.
Perform image and text labeling tasks such as entity recognition, intent classification, sentiment analysis, and content categorization.
Check annotated data for accuracy, completeness, and consistency.
Correct errors or inconsistencies in existing annotations.
Follow detailed project guidelines and maintain consistent annotation standards across datasets.
Review ambiguous or difficult cases and escalate them to quality assurance teams or project leads when necessary.
Perform quality checks on annotated datasets before submission.
Meet established productivity, accuracy, and turnaround-time requirements.
Maintain confidentiality and follow data privacy and security procedures when handling sensitive information.

Data Annotator at TELEWORKPH INC. (2018-11 – 2020-04)

Annotate images and video frames by identifying vehicles, pedestrians, cyclists, traffic signs, traffic lights, road markings, obstacles, and other relevant objects.
Use annotation tools to create accurate bounding boxes, polygons, lines, and other labels around objects and road features.
Review data to identify objects and their locations within the vehicle's surroundings.
Classify objects according to established project guidelines and annotation standards.
Track object movements across multiple video frames to support autonomous vehicle perception and tracking systems.
Identify unusual or difficult road situations, such as construction zones, accidents, emergency vehicles, unclear lane markings, or unexpected obstacles.
Perform quality checks on annotations to ensure accuracy, consistency, and completeness.
Correct inaccurate or incomplete labels identified during quality assurance reviews.
Follow strict data privacy, security, and confidentiality procedures when handling vehicle and sensor data.
Communicate with quality assurance teams, project managers, and other annotators regarding unclear cases or annotation guidelines.
Meet required accuracy, productivity, and turnaround-time targets.

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