I’m Rajan Kumar Mahato, an AI-focused professional who enjoys building and improving datasets that help models learn more accurately, reliably, and contextually. With hands-on experience across multimodal and multilingual AI projects, I work on tasks like dataset evaluation, detailed annotation, and quality assessment to strengthen model performance and real-world usefulness. I’ve contributed to cutting-edge AI work through remote roles with teams supporting Meta and other advanced initiatives, where I refined AI outputs for linguistic precision, alignment with user intent, and cultural relevance. Alongside training and evaluation work, I also have a technical engineering background in ML and computer vision, including projects like semiconductor wafer defect detection using YOLO.

RAJAN KUMAR MAHATO

I’m Rajan Kumar Mahato, an AI-focused professional who enjoys building and improving datasets that help models learn more accurately, reliably, and contextually. With hands-on experience across multimodal and multilingual AI projects, I work on tasks like dataset evaluation, detailed annotation, and quality assessment to strengthen model performance and real-world usefulness. I’ve contributed to cutting-edge AI work through remote roles with teams supporting Meta and other advanced initiatives, where I refined AI outputs for linguistic precision, alignment with user intent, and cultural relevance. Alongside training and evaluation work, I also have a technical engineering background in ML and computer vision, including projects like semiconductor wafer defect detection using YOLO.

Available to hire

I’m Rajan Kumar Mahato, an AI-focused professional who enjoys building and improving datasets that help models learn more accurately, reliably, and contextually. With hands-on experience across multimodal and multilingual AI projects, I work on tasks like dataset evaluation, detailed annotation, and quality assessment to strengthen model performance and real-world usefulness.

I’ve contributed to cutting-edge AI work through remote roles with teams supporting Meta and other advanced initiatives, where I refined AI outputs for linguistic precision, alignment with user intent, and cultural relevance. Alongside training and evaluation work, I also have a technical engineering background in ML and computer vision, including projects like semiconductor wafer defect detection using YOLO.

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Language

English
Fluent
Nepali
Fluent
Hindi
Fluent

Work Experience

Expert AI Trainer (Freelance, Remote) at Micro1, USA
April 1, 2026 - Present
Evaluated and annotated multimodal datasets to support robotic movement training. Focused on improving dataset quality and usefulness for downstream AI training and robotic learning workflows.
Master - Advance AI Trainer (Freelance, Remote) at Invisible Technologies, USA
September 1, 2025 - Present
Worked on multimodal AI systems supporting Meta. Designed and refined high-quality datasets for accuracy, consistency, and cultural relevance; performed annotation and quality assessments across text and multimedia; evaluated AI agent outputs for alignment with user intent and linguistic precision; improved reliability and contextual understanding of generative/LLM systems.
AI Agent Assistant, Python Vibe Coder Expert, AI Agentic QA (Freelance, Remote) at Mindrift.ai, Switzerland
February 1, 2025 - Present
Applied fact-checking, prompt engineering, and evaluation workflows to refine LLM responses. Identified and corrected inconsistencies, provided feedback for model enhancement, and used NLP and Python/ML knowledge to improve contextual understanding, reliability, and responsiveness.
AI Agent Assistant (AI tutor, ML Specialist) at Mindrift.ai
February 1, 2025 - Present
Freelance remote position contributing to a cutting-edge AI project for Meta, focusing on linguistic and machine learning expertise. Responsibilities include annotation, transcription, content classification, and data validation to enhance ML model accuracy. Verified facts, conducted high-quality web research, reviewed AI outputs for factual accuracy and relevance, and provided detailed feedback to improve large language models. Also involved in prompt generation and best practices for interacting with LLMs to optimize responses.
AI Developer at Inflancer Technologies
June 1, 2024 - December 31, 2024
Implemented data and ML pipelines for a recommendation system and search engine for a social media platform. Performed data analysis, built/assisted ML and data pipeline design, and optimized workflows for efficient data processing to improve AI accuracy and performance.
AI Developer at Inflancer Technology
June 1, 2024 - Present
Contract role working on the implementation of data and ML pipelines for recommendation and semantic search systems on a social media platform. Responsibilities included building and optimizing AI workflows such as data ingestion, preprocessing, vectorization, and embedding generation. Integrated large language models for personalized recommendations and user modeling, performed data analysis with Python libraries to optimize speed and accuracy, and assisted with scalable cloud deployment planning.
Project Vendor at Train AI Community (Freelance, Remote) at RWS Group, United Kingdom
February 1, 2024 - Present
Supported a Meta-focused AI project through annotation, transcription, content classification, and data validation. Collaborated with technical teams on annotation tools, ensured alignment with quality standards, and contributed feedback to improve annotation efficiency and usability.
Project Vendor (Linguistic Specialist, ML Specialist) at RWS Group
February 1, 2024 - Present
Freelance remote contributor to a cutting-edge AI project for Meta, enhancing AI model evaluation and improvement through high-quality curated data. Duties included annotation, transcription, content classification, data validation, prompt creation, and data generation for generative AI systems. Collaborated with technical teams to improve annotation tools and ensured alignment with quality standards for next-generation language models.
Technical Business Development Associate Intern at Movidu technologies Pvt. Limited
December 1, 2023 - August 10, 2025
Full-time internship focused on analyzing products according to client demands and communicating with clients. Collaborated with research, product development, technical, and sales teams to enhance customer satisfaction.
Technical Business Development Associate Intern at Movidu technologies Pvt. Limited, Bengaluru, India
June 1, 2023 - December 31, 2023
Analyzed products based on client demand and communicated with clients regarding product fit. Coordinated with research, product development, technical, and sales teams to improve customer satisfaction and support the product-to-market workflow.
Neural Network Research Intern at National Changhua University of Education
March 1, 2023 - August 10, 2025
Onsite internship developing CNN-based deep learning models for defect detection in semiconductor wafers using computer vision. Responsibilities included image pre-processing, exploratory data analysis, model training, evaluation, tuning, and developing algorithms for real-time defect classification and segmentation.
Neural Network Research Intern at National Changhua University of Education, Taiwan
September 1, 2022 - March 1, 2023
Developed CNN-based computer vision models for semiconductor wafer defect detection. Pre-processed images, performed EDA to improve model performance, trained and tuned models for real-world evaluation, and participated in algorithm development for real-time defect classification and segmentation tasks.

Education

Bachelor’s degree, Electronics and Communication Engineering at VEL TECH RANGARAJAN DR. SAGUNTHALA R&D INSTITUTE OF SCIENCE AND TECHNOLOGY / AICTE - INDIA
January 1, 2019 - July 20, 2023
Exchange Program and Internship, AI and Neural Network Research at NATIONAL CHANGHUA UNIVERSITY OF EDUCATION, TAIWAN
September 1, 2022 - March 1, 2023
+2, Science at KANCHANJUNGA ENGLISH HIGHER SECONDARY SCHOOL - NEPAL
January 1, 2016 - September 20, 2018
School Leaving Certificate at BIBHUTI VIDYA MANDIR ENGLISH HIGHER SECONDARY SCHOOL - NEPAL
January 1, 2014 - June 16, 2016

Qualifications

Youth Leadership Award
January 11, 2030 - August 10, 2025
MATLAB Training Course Completion Certificate
January 11, 2030 - September 17, 2026
Cloud Computing and Amazon Web Services (AWS) Fundamentals Course Completion Certificate
January 11, 2030 - September 17, 2026
Robotics and Arduino Programming Training (Workshop)
January 11, 2030 - September 17, 2026
Evaluation of Air Interface towards 5G (NPTEL) - Course Training
January 11, 2030 - September 17, 2026
"Embedded System and Recent Development" Workshop (Texas Instruments Researcher) - Participation Certificate
January 11, 2030 - September 17, 2026

Industry Experience

Software & Internet, Professional Services, Education, Media & Entertainment, Computers & Electronics