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S
Shubham C.

Shubham C.

Data annotator/Programming expert

India flagDehradun, India

Key Skills

Software

AppenAppen
Google Cloud Vertex AIGoogle Cloud Vertex AI
Label StudioLabel Studio
MercorMercor
OneFormaOneForma
ClickworkerClickworker
Data Annotation TechData Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

Computer Code ProgrammingComputer Code Programming
DocumentDocument
TextText

Top Task Types

Computer Programming/CodingComputer Programming/Coding
Evaluation/RatingEvaluation/Rating
Text SummarizationText Summarization
Translation/LocalizationTranslation/Localization

Freelancer Overview

Detail-oriented Data Annotator and AI Trainer with approximately 3 years of experience delivering high-quality labeled datasets and model evaluations for SFT/RLHF workflows. Strong programming background in HTML, Python, Java, JavaScript, C, C++, and C#, enabling accurate annotation of code, debugging, and technical content. Experienced in prompt–response evaluation, quality rating, safety reviews, and guideline-based labeling across multilingual tasks. Known for consistency, speed, and adherence to strict rubrics, with the ability to quickly learn new tools and maintain reliable daily throughput on complex projects.

Labeling Experience

Label Studio

hindi/English annotator

Label StudioLabel StudioTextTextText GenerationText GenerationTranslation/LocalizationTranslation/Localization

Evaluate AI-generated audio outputs in Hindi/English for clarity, fluency, and naturalness - Compare pairs of outputs and indicate preference based on linguistic and acoustic quality - Identify pronunciation, intonation, and tone inconsistencies - Provide structured written feedback to guide model improvement - Ensure evaluations adhere to standardized quality guidelines

2025
Mercor

Front-End Software Engineer specializing in HTML

MercorMercorComputer Code ProgrammingComputer Code ProgrammingObject DetectionObject DetectionEvaluation/RatingEvaluation/Rating

Develop well-structured, semantic HTML5 markup for web pages, components, and application templates. Collaborate with designers to translate mockups and wireframes into responsive, standards-compliant layouts. Work closely with JavaScript developers to integrate markup with dynamic functionality and data-driven components. Validate and troubleshoot markup to ensure clean, error-free implementation across devices and screen sizes. Implement reusable code patterns and modular templates to improve scalability and maintain consistency. Participate in code reviews, testing, and documentation of HTML structures and component libraries. Collaborate with backend and integration teams to ensure smooth front-end and API alignment.

2025
Data Annotation Tech

JavaScript / TypeScript Full-Stack Developer

Data Annotation TechData Annotation TechComputer Code ProgrammingComputer Code ProgrammingComputer Programming/CodingComputer Programming/CodingData CollectionData Collection

Design, develop, and maintain efficient, high-quality code to train and optimize AI models. Conduct evaluations (Evals) to benchmark model performance and analyze results for continuous improvement. Evaluate and rank AI model responses to user queries across diverse domains, ensuring alignment with predefined criteria. Develop comprehensive explanations and rationales for evaluations, showcasing excellent reasoning and technical expertise. Lead efforts in Supervised Fine-Tuning (SFT), including creating and maintaining high-quality, task-specific datasets. Collaborate with researchers and annotators to execute Reinforcement Learning with Human Feedback (RLHF) and refine reward models.

2024
Clickworker

Data annotator

ClickworkerClickworkerTextTextText GenerationText GenerationObject DetectionObject Detection

Data annotator /chatbot trainner

2023

Education

U

uttaranchal university

MCA, computer application

MCA
2025 - 2025
H

HNB garhwal university

BCA, computer application

BCA
2022 - 2025

Work History

P

productive playhouse

Ai chatbot trainer

dehradun
2025 - Present
D

Data annotation

JavaScript / TypeScript Full-Stack Developer

Dehradun
2024 - Present