Data Annotation Services

I provide data annotation services for machine learning teams, AI startups, and companies that need accurate and well-structured training data. With experience in image, audio, and text annotation — along with dedicated quality assurance — I help you build clean, reliable datasets that support high-performing AI and ML models.

Image annotation example showing two sweet cherries on a branch with green leaves, each labeled with bounding boxes as "sweet cherry

Image Annotation Services

My image annotation services support computer vision projects that require precise and consistent visual datasets. I work with bounding boxes, polygons, segmentation masks, key points, and other formats, always following your project guidelines closely to ensure accuracy and full alignment with your model’s needs.

What You Get With My Image Annotation

  • Consistent and pixel-accurate annotations

  • Support for bounding boxes, polygons, masks, landmarks, and more

  • High-quality datasets for detection, classification, and segmentation

  • Scalable workflow for both small and large datasets

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Audio annotation services example showing labeled sounds like fireworks, car brakes, police sirens, and gunshot for machine learning

Audio Annotation Services

My audio annotation services help you structure audio files for speech recognition, conversational AI, and sound classification tasks. I provide careful labeling of speakers, timestamps, acoustic events, and intent, making every audio file clear, consistent, and ready for training. 

What You Get With My Audio Annotation

  • Speaker identification and segmentation

  • Timestamp alignment

  • Transcription and intent labeling

  • Annotation for environmental sounds and events

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NLP annotation example showing text classification with labeled parts of speech including noun, adjective, and adverb

Text Annotation Services

My text annotation services convert raw text into structured, well-labeled datasets for NLP models. I annotate entities, sentiment, categories, intent, and custom metadata. With experience in ML data preparation, I ensure accuracy, consistency, and clean text datasets tailored to your use case.

What You Get With My Text Annotation

  • Named entity recognition (NER)

  • Sentiment and intent classification

  • Content categorization

  • Custom tagging based on your workflow

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Quality Assurance Services

My quality assurance services ensure every dataset is thoroughly reviewed before final delivery. I perform consistency checks, error correction, and guideline alignment, giving you a clean, accurate, and reliable dataset that meets professional machine learning standards.

What You Get With My Quality Assurance

  • Multi-step review process

  • Consistency checks across the dataset

  • Correction of errors, duplicates, and mismatches

  • Final validation before export

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Frequently Asked Questions

✅ What services do you provide?

With over 12 years of experience, I provide high-quality annotation services for image, audio, and text data. My work is defined by precision, attention to detail, and a strong focus on quality assurance. I’ve led QA on every project I’ve handled, ensuring consistently clean and accurate datasets that are ready for machine learning and AI development.

  • Computer Vision Annotation
  • NLP Annotation
  • Audio Annotation
  • QA & Model Validation

I’m experienced with the most popular industry-standard annotation tools, including:

  • Labelbox

  • SuperAnnotate

  • CVAT

  • VGG Image Annotator (VIA)

  • LabelImg

  • Audacity (for audio labeling)

  • Prodigy / Doccano (for text NLP)

In addition, I quickly adapt to proprietary or internal tools and am comfortable learning new platforms as needed to meet project-specific workflows.

Throughout my career, I’ve collaborated with a wide range of companies — from startups to established enterprises — across industries including:

  • Agritech (agricultural innovation and automation)

  • Street and Traffic Security (object detection, license plate recognition)

  • Smart Cities & Public Services (city cleanliness and waste monitoring)

  • Retail AI (supermarket inventory, shelf monitoring, customer behavior)

  • Nonprofits (translation and localization of educational materials)

  • Geology & Earth Sciences (labeling geological formations and terrain analysis)

What sets my services apart is the combination of deep expertise, consistent quality, and a personalized approach. I don’t just complete tasks — I ensure every dataset is clean, precise, and optimized for its end use. With over a decade of experience and a strong QA background, I proactively catch and fix issues before they become problems. Clients value my reliability, attention to detail, and ability to adapt quickly to different project needs and tools. I’m not just a labeler — I’m a quality partner in your machine learning pipeline.

High-quality labeled data is the backbone of successful AI models. It ensures that AI systems perform accurately, make better predictions, and deliver reliable results. To maintain this standard, I follow a meticulous process that includes carefully reading and understanding the guidelines, being thorough and precise with each annotation, and double-checking all labels. I communicate closely with project managers and team members whenever something is unclear or if I have questions, ensuring alignment and clarity. At the end of each task, I also perform a final quality assurance check to make sure everything meets the required standards. Poor labeling can lead to errors, wasted resources, and a loss of trust in AI systems—which is why I’m fully committed to precision, consistency, and delivering the highest quality work.

Let’s create accurate, high-quality data together.

Need accurate and reliable data for your AI project? Contact me to discuss your dataset, requirements, and timeline. I’ll help you prepare high-quality training data that supports better model performance.

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