Polina Raidenko-AI Data Annotation Specialist
Check rate
Experience
AI Data Annotation Specialist
Mindrift
- Annotating and mapping options values for AI models
- Ensuring that the correct mapping was applied to the data based on predefined criteria
- Reviewing and verifying annotations for consistency and accuracy
- Working with a team to ensure high-quality data annotations
- Providing feedback and suggestions to improve the annotation process
- Validating the quality of the data used for training AI systems
AI Trainer
Invisible Technologies
Freelancer - AI Data Annotation & Verification Specialist / AI Data Specialist - Slovak Audio Transcription and Annotation
Upwork
- Recorded and transcribed Slovak audio for AI training
- Annotated and labeled text, images, and videos
- Verified AI responses for factual accuracy and relevance
Personalized Internet Assessor
TELUS International
- Evaluated and rated online content to improve search engine relevance
- Improved AI recommendations by assessing user intent and content relevance
- Ensured high-quality results through consistent application of linguistic criteria
- Annotated and reviewed text and voice data for AI training
- Analyzed grammar, tone, clarity, and factual correctness of large language model responses
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Professional Services.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, Research and Development, and Product Development.
Summary
I am a highly motivated and detail-oriented professional with a strong background in Al data annotation, verification, and transcription. I specialize in improving Al-generated content, ensuring its accuracy, and performing quality checks. With hands-on experience in transcription, data annotation, and content evaluation, I bring a strong skill set in enhancing machine learning models
Skills
- Gmail
- Al Data Annotation
- Verification
- Data Labeling
- Audio Transcription
- Factual Accuracy Verification
- Content Quality Assurance
- Checking If The Al'S Answer Correctly Responds To The User'S Query
- Verifying Factual Accuracy Using Reliable Sources
- Checking The Freshness And Relevance Of Information
- Identifying Errors, Inconsistencies, Or Missing Details
- Providing Evidence To Support Corrections
- Evaluating Clarity, Correctness, And Completeness Of The Response
- Rating The Overall Quality And Suggesting Improvements
- Data Mapping For Al Models
- Text, Image, And Video Annotation
- Machine Learning Support
- Al Response Evaluation
- Content Freshness And Relevance Checks
- Data Consistency And Accuracy Verification
- Quality Control And Process Improvement
- Precision In Data Processing
Languages
Education
Technical University of Kosice
Master's Degree · Košice, Slovakia
Konotop Specialized School
High School Diploma · Konotop, Ukraine
Certifications & licenses
English Certificate C1 - International English Test
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Polina is based in Košice, Slovakia and prefers 100% remote projects.
Polina speaks the following languages: Slovak (Native), Ukrainian (Native), Czech (Advanced), English (Advanced), Polish (Intermediate), German (Elementary).
Polina has at least 2 years of experience. During this time, Polina has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 5 months. Note that Polina may not have shared all experience and actually has more experience.
Based on recent experience, Polina would be well-suited for roles such as: AI Data Annotation Specialist, AI Trainer, Freelancer - AI Data Annotation & Verification Specialist / AI Data Specialist - Slovak Audio Transcription and Annotation.
Polina's most recent position is AI Data Annotation Specialist at Mindrift.
In recent years, Polina has worked for Mindrift, Invisible Technologies, Upwork, and TELUS International.
Polina is most experienced in industries like Information Technology and Professional Services.
Polina is most experienced in business areas like Information Technology, Quality Assurance, and Research and Development. Polina also has some experience in Product Development.
Polina holds a Master from Technical University of Kosice.
Polina has 1 certificate: English Certificate C1 - International English Test.
The availability of Polina needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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