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Leo Sabbir

AI Data Annotation Specialist (Image Labeling)

Bangladesh flagDhaka, Bangladesh
ExpertOther

Key Skills

Software

Other

Top Subject Matter

Computer Vision
Natural Language Processing
Speech Recognition

Top Data Types

ImageImage
TextText
AudioAudio
DocumentDocument

Top Task Types

Object Detection
Classification
Transcription

Freelancer Overview

AI Data Annotation Specialist (Image Labeling). Core strengths include Other. AI-training focus includes data types such as Image, Text, and Audio and labeling workflows including Object Detection, Sentiment Analysis, and Transcription.

Expert

Labeling Experience

AI Testing QA & Prompt Engineering Specialist

OtherText
I evaluated AI-generated outputs as part of LLM quality assurance and prompt engineering efforts. Responsibilities included systematically identifying model errors, biases, and inconsistencies while stress-testing language models with structured prompts. Rigorous evaluation ensured only high-quality outputs and datasets were contributed to model teams. • Rated and reviewed language model responses for quality. • Created diverse prompts for thorough model evaluation. • Reported bugs and inconsistencies in AI outputs. • Contributed to continuous improvement via QA feedback.

I evaluated AI-generated outputs as part of LLM quality assurance and prompt engineering efforts. Responsibilities included systematically identifying model errors, biases, and inconsistencies while stress-testing language models with structured prompts. Rigorous evaluation ensured only high-quality outputs and datasets were contributed to model teams. • Rated and reviewed language model responses for quality. • Created diverse prompts for thorough model evaluation. • Reported bugs and inconsistencies in AI outputs. • Contributed to continuous improvement via QA feedback.

Present

AI Data Annotation Specialist (Text & Audio)

OtherAudioTranscription
I supported audio data transcription and annotation to enrich speech recognition and intent identification datasets. The work entailed listening to recorded samples, providing accurate transcriptions, and categorizing spoken language segments. Consistency in label application and clarity of transcriptions were paramount for model improvement. • Transcribed audio recordings for speech-to-text tasks. • Labeled intent and speaker attributes. • Assisted with audio sentiment and contextual labeling. • Verified transcription accuracy for quality assurance.

I supported audio data transcription and annotation to enrich speech recognition and intent identification datasets. The work entailed listening to recorded samples, providing accurate transcriptions, and categorizing spoken language segments. Consistency in label application and clarity of transcriptions were paramount for model improvement. • Transcribed audio recordings for speech-to-text tasks. • Labeled intent and speaker attributes. • Assisted with audio sentiment and contextual labeling. • Verified transcription accuracy for quality assurance.

Present

AI Data Annotation Specialist (Text & Audio)

OtherTextClassification
I performed text annotation for sentiment analysis and intent classification to enhance natural language understanding models. Responsibilities included evaluating and categorizing user statements based on polarity, intent, or actionable outcome. Each annotation contributed to more accurate and nuanced conversational AI performance. • Annotated text samples for sentiment, intent, and context. • Provided feedback on ambiguous or challenging cases. • Assisted in iterative improvement through prompt engineering. • Maintained high accuracy in large-scale text datasets.

I performed text annotation for sentiment analysis and intent classification to enhance natural language understanding models. Responsibilities included evaluating and categorizing user statements based on polarity, intent, or actionable outcome. Each annotation contributed to more accurate and nuanced conversational AI performance. • Annotated text samples for sentiment, intent, and context. • Provided feedback on ambiguous or challenging cases. • Assisted in iterative improvement through prompt engineering. • Maintained high accuracy in large-scale text datasets.

Present

AI Data Annotation Specialist (Image Labeling)

OtherImageObject Detection
I specialized in high-volume image annotation projects focused on object detection, classification, and segmentation. Tasks involved applying consistent object boundaries in diverse image data to train and refine computer vision models. The process required precise tool operation and maintaining strict dataset quality standards. • Labeled images for object identification, segmentation, and categorization. • Ensured accuracy and quality of annotated datasets. • Utilized web-based annotation platforms for efficient workflow. • Collaborated remotely to meet project goals and deadlines.

I specialized in high-volume image annotation projects focused on object detection, classification, and segmentation. Tasks involved applying consistent object boundaries in diverse image data to train and refine computer vision models. The process required precise tool operation and maintaining strict dataset quality standards. • Labeled images for object identification, segmentation, and categorization. • Ensured accuracy and quality of annotated datasets. • Utilized web-based annotation platforms for efficient workflow. • Collaborated remotely to meet project goals and deadlines.

Present

Education

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Work History

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