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Madhavendra Singh

Madhavendra Singh

Data Annotator (Freelancing) | DataAnnotation / RWS / Trading

India flagNavi Mumbai, India
$5.00/hrExpertInternal Proprietary ToolingOther

Key Skills

Software

Internal/Proprietary Tooling
Other

Top Subject Matter

AI Language Model Training and Evaluation
Computer Vision
STEM Education

Top Data Types

ImageImage
TextText

Top Task Types

Bounding BoxBounding Box
ClassificationClassification
Object DetectionObject Detection
RLHFRLHF
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Question AnsweringQuestion Answering
Emotion RecognitionEmotion Recognition
Translation/LocalizationTranslation/Localization
Evaluation/RatingEvaluation/Rating

Freelancer Overview

Data Annotator (Freelancing) | DataAnnotation / RWS / Trading. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Internal, and Proprietary Tooling. AI-training focus includes data types such as Text and labeling workflows including Translation, Localization, and Question Answering.

ExpertEnglish

Labeling Experience

Senior Associate (Contractual) | Innodata

TextQuestion Answering
I systematically extracted and annotated graduate-level Q&A problems for STEM content curation. Each entry was diligently captured to maximize clarity, completeness, and educational value. I followed defined templates and strict conventions to ensure data quality. • Screen-grabbed questions and solutions from authorized textbooks. • Ensured alignment with domain-specific complexity standards. • Applied formatting and naming rules without deviation. • Maintained traceable organization across all curated content.

I systematically extracted and annotated graduate-level Q&A problems for STEM content curation. Each entry was diligently captured to maximize clarity, completeness, and educational value. I followed defined templates and strict conventions to ensure data quality. • Screen-grabbed questions and solutions from authorized textbooks. • Ensured alignment with domain-specific complexity standards. • Applied formatting and naming rules without deviation. • Maintained traceable organization across all curated content.

2025 - Present

Senior Associate

OtherTextBounding Box
Annotating relevant Science, Technology, Engineering, and Mathematics resources by bounding boxes.

Annotating relevant Science, Technology, Engineering, and Mathematics resources by bounding boxes.

2006

Data Annotator

Internal Proprietary ToolingImageBounding BoxClassification
Worked in "RWS Work zone", in Meta (FB & Instagram) Projects on Image annotations and labeling on various metrics like clothing/Styles/Location & Landmarks/Person/Products/Animals etc. other related project like Face Swap and Face Matching along with Video Annotations projects.

Worked in "RWS Work zone", in Meta (FB & Instagram) Projects on Image annotations and labeling on various metrics like clothing/Styles/Location & Landmarks/Person/Products/Animals etc. other related project like Face Swap and Face Matching along with Video Annotations projects.

2025 - 2025

Data Annotation

Internal Proprietary ToolingTextRLHFPrompt Response Writing SFT
Worked in "Soul AI", LLM evaluation through RLHF and measuring along the various metrics like instruction following, relevance, collaboration, truthfulness etc. Prompting from simple to complex. Complex prompting like chain of thought/ tree of thought/ Instruction chaining/ building effective prompt.

Worked in "Soul AI", LLM evaluation through RLHF and measuring along the various metrics like instruction following, relevance, collaboration, truthfulness etc. Prompting from simple to complex. Complex prompting like chain of thought/ tree of thought/ Instruction chaining/ building effective prompt.

2024 - 2025

Data Annotaion

Internal Proprietary ToolingTextQuestion AnsweringEmotion Recognition
A Proficient in Text analysis both in English and Hindi Language. I worked in "Data Annotation" - a remote job to train AI/LLM and evaluate. In "Data Annotation" project, i have to evaluate the responses of 2 LLM - rate the response - edit the response- there are many metrics and axes along which i have the rate the responses of LLM. Besides this, there is text generation and analysis through prompting and system prompt.

A Proficient in Text analysis both in English and Hindi Language. I worked in "Data Annotation" - a remote job to train AI/LLM and evaluate. In "Data Annotation" project, i have to evaluate the responses of 2 LLM - rate the response - edit the response- there are many metrics and axes along which i have the rate the responses of LLM. Besides this, there is text generation and analysis through prompting and system prompt.

2023 - 2024

Education

R

Rungta College

Bachelor of Engineering, Mechanical Engineering

Bachelor of Engineering
2011 - 2015
C

CBSE

Higher Secondary Certificate, Science with Computer Science

Higher Secondary Certificate
2011 - 2011

Work History

I

Innodata

Senior Associate

Navi Mumbai
2025 - Present
P

Patra India BPO Services

Process Executive

Raipur
2019 - 2022