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Neeraj Tiwari

Neeraj Tiwari

AI Data Labeling & Multilingual Annotation Specialist

INDIA flag
Vadodara, India
$10.00/hrExpertAppenClickworkerCVAT

Key Skills

Software

AppenAppen
ClickworkerClickworker
CVATCVAT
LabelboxLabelbox
PlaymentPlayment
Scale AIScale AI
Surge AISurge AI
TolokaToloka
TelusTelus
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

3D Sensor
AudioAudio
DocumentDocument
ImageImage
TextText
VideoVideo

Top Label Types

Action Recognition
Audio Recording
Bounding Box
Classification
Diagnosis
Evaluation Rating
Object Detection
Point Key Point
Prompt Response Writing SFT
Red Teaming
RLHF
Segmentation
Text Generation
Text Summarization
Tracking
Transcription
Translation Localization

Freelancer Overview

I am a multilingual language quality evaluator and translation specialist with extensive experience in data annotation and AI training data for NLP applications. With native-level proficiency in Thai, Korean, Hindi, and Gujarati, as well as advanced English and Japanese skills, I excel at evaluating machine-translated content, assessing semantic equivalence, and ensuring linguistic accuracy across multiple languages. I am adept at following detailed annotation guidelines, providing clear qualitative feedback, and conducting linguistic analysis to enhance data quality. My background in literature, writing, and editing enables me to deliver high-quality, guideline-based evaluations and annotations for diverse projects, supporting the development of robust AI language models.

ExpertEnglishThaiBhojpuriKoreanJapaneseHindi

Labeling Experience

Medical Image Annotation for Healthcare Diagnostics

Internal Proprietary ToolingImagePoint Key PointText Summarization
Annotation by trained specialists marking anatomical features and pathological indicators (tumors, fractures) in medical imaging. This high-precision labeled dataset was used to train diagnostic AI systems for clinical research.

Annotation by trained specialists marking anatomical features and pathological indicators (tumors, fractures) in medical imaging. This high-precision labeled dataset was used to train diagnostic AI systems for clinical research.

2024
CVAT

Vehicle Object & Lane Annotation for Self-Driving Training

CVATImageBounding BoxSegmentation
Coordinated labeling of large driving datasets including cars, pedestrians, road signs, and lane markers for improving computer vision systems in autonomous vehicles. This project enhanced object detection and scene understanding model performance.

Coordinated labeling of large driving datasets including cars, pedestrians, road signs, and lane markers for improving computer vision systems in autonomous vehicles. This project enhanced object detection and scene understanding model performance.

2023 - 2024
Labelbox

Solar Panels & Regulatory Document Annotation Projects

LabelboxImageSegmentationClassification
The Label Your Data team annotated thousands of photos to detect solar panels and related infrastructure, and separately labeled tens of thousands of regulatory document texts for classification tasks. This supported solar inspection analytics and legal document indexing in NLP workflows.

The Label Your Data team annotated thousands of photos to detect solar panels and related infrastructure, and separately labeled tens of thousands of regulatory document texts for classification tasks. This supported solar inspection analytics and legal document indexing in NLP workflows.

2022 - 2023
Surge AI

Surge AI Human Feedback & Language Annotation

Surge AITextRLHFPrompt Response Writing SFT
Surge AI worked with large language model developers to label AI outputs and provide human feedback, improving model alignment and quality of generative systems. Tasks included ranking model responses, annotating errors, and providing contextual corrections for text.

Surge AI worked with large language model developers to label AI outputs and provide human feedback, improving model alignment and quality of generative systems. Tasks included ranking model responses, annotating errors, and providing contextual corrections for text.

2020 - 2022
Scale AI

Scale AI / Remotasks Vision Labeling Work

Scale AI3D SensorSegmentationObject Detection
A large distributed labeling workflow used by Scale AI’s Remotasks community to annotate complex vision data (frames, sensor imagery) for training self-driving and perception systems. Includes high-volume micro-tasks broken into object bounding boxes, category tags, and sequential scene labeling.

A large distributed labeling workflow used by Scale AI’s Remotasks community to annotate complex vision data (frames, sensor imagery) for training self-driving and perception systems. Includes high-volume micro-tasks broken into object bounding boxes, category tags, and sequential scene labeling.

2018 - 2019

Education

I

IGNOU

Foreign language certificate - Korean, Korean Language

Foreign language certificate - Korean
2017 - 2018
S

Sri Mirambika College of Management

Bachelor of Arts, Literature

Bachelor of Arts
2014 - 2018

Work History

I

Independent

Language Evaluation and Translation Specialist

Vadodara
2015 - Present