Michael S.

Key Skills

Software

Other

Top Subject Matter

Multidomain (finance, healthcare, psychology, STEM, digital content)

AI outputs across multiple domains (finance, healthcare, psychology, STEM, digital content)

Educational Domain Expertise

Top Data Types

Text

Image

Video

Audio

Document

Top Task Types

Segmentation

Tracking

Transcription

Data Collection

Freelancer Overview

Data Annotation & Labeling Specialist (Freelance) — Text annotation. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Arts, N/A and Bachelor of Science, N/A. AI-training focus includes data types such as Text, Image, and Video and labeling workflows including Entity (NER), Segmentation, and Tracking.

Labeling Experience

AI Training & Evaluation Support (Freelance) — Evaluation and feedback

OtherText

You evaluated AI-generated responses using annotated datasets to assess quality and correctness. You provided structured feedback to improve model outputs and reduce errors. You identified hallucinations and inconsistencies and recommended dataset improvements. • Response evaluation and structured feedback delivery • Hallucination detection and inconsistency identification • Prompt evaluation and dataset benchmarking support • Recommendations for dataset refinement

2019 - Present

Educational & Research Content Reviewer (Freelance) — Dataset validation and labeled data creation

OtherTextData Collection

You reviewed and validated structured labeled datasets intended for AI training across educational, psychological, and STEM contexts. You ensured the annotated data met quality standards and was suitable for downstream machine learning workflows. You assisted in creating consistent, labeled data structures for model training. • Dataset review and validation for educational and STEM content • Quality assurance checks for AI training readiness • Creation of structured, labeled data for ML models • Multidomain labeling consistency support

2017 - Present

Data Annotation & Labeling Specialist (Freelance) — Audio annotation

OtherAudioTranscription

You created annotated audio datasets for AI and machine learning projects by providing transcription and structured audio labels. You ensured dataset accuracy and consistency by following labeling guidelines for each audio segment. You also supported quality assurance by detecting inconsistencies and correcting labeling errors. • Transcription and timestamp-aligned labeling • Speaker labeling and audio tagging • Sentiment detection for audio segments • Annotation guideline compliance and quality control

2015 - Present

Data Annotation & Labeling Specialist (Freelance) — Video annotation

OtherVideoTracking

You produced video annotations for AI training datasets, emphasizing tracking and temporal understanding labels. You applied labeling guidelines to maintain accuracy and consistency across frames and segments. You performed quality assurance checks to detect errors or inconsistencies. • Object tracking annotations for moving targets • Activity recognition labels for behavioral events • Scene classification labels for contextual understanding • Error detection and consistency checking

2015 - Present

Data Annotation & Labeling Specialist (Freelance) — Image annotation

OtherImageSegmentation

You created image-labeled datasets for AI and machine learning use cases by producing segmentation-quality annotations. You ensured outputs matched annotation guidelines and remained consistent across the dataset. You supported quality control by flagging and correcting label discrepancies. • Segmentation labeling for pixel-level delineation • Bounding box annotation and classification labeling • Dataset validation and quality control passes • Collaboration to refine annotation standards for future batches

2015 - Present

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Education

Work History