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I'm Branimir Koldan, a data annotation specialist with hands-on experience labeling and classifying diverse datasets for machine learning models. I maintain exceptional accuracy and consistency across long-running projects, directly contributing to robust AI systems. I excel at applying labeling guidelines such as bounding boxes, segmentation, and classification; I work efficiently with images, text, and video data, and I collaborate well with teams to deliver high-quality training data and scalable annotation workflows.…I'm Branimir Koldan, a data annotation specialist with hands-on experience labeling and classifying diverse datasets for machine learning models. I maintain exceptional accuracy and consistency across long-running projects, directly contributing to robust AI systems. I excel at applying labeling guidelines such as bounding boxes, segmentation, and classification; I work efficiently with images, text, and video data, and I collaborate well with teams to deliver high-quality training data and scalable annotation workflows.

Branimir Koldan

Data Annotator, Data Collector, Data Scientist, +2

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I'm Branimir Koldan, a data annotation specialist with hands-on experience labeling and classifying diverse datasets for machine learning models. I maintain exceptional accuracy and consistency across long-running projects, directly contributing to robust AI systems. I excel at applying labeling guidelines such as bounding boxes, segmentation, and classification; I work efficiently with images, text, and video data, and I collaborate well with teams to deliver high-quality training data and scalable annotation workflows.…I'm Branimir Koldan, a data annotation specialist with hands-on experience labeling and classifying diverse datasets for machine learning models. I maintain exceptional accuracy and consistency across long-running projects, directly contributing to robust AI systems. I excel at applying labeling guidelines such as bounding boxes, segmentation, and classification; I work efficiently with images, text, and video data, and I collaborate well with teams to deliver high-quality training data and scalable annotation workflows.

Available to hire

I’m Branimir Koldan, a data annotation specialist with hands-on experience labeling and classifying diverse datasets for machine learning models. I maintain exceptional accuracy and consistency across long-running projects, directly contributing to robust AI systems.

I excel at applying labeling guidelines such as bounding boxes, segmentation, and classification; I work efficiently with images, text, and video data, and I collaborate well with teams to deliver high-quality training data and scalable annotation workflows.

Skills

Experience Level

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Data Annotation Specialist at Lambda, Inc.

April 20, 2025 - April 20, 2025

Performed various annotation techniques such as bounding boxes, segmentation, and classification to meet project requirements. Annotated diverse datasets including images, text, and video clips to generate high-quality training data for AI/ML models. Applied labeling guidelines with meticulous attention to detail to ensure exceptional accuracy and consistency across large-volume tasks.

School Project at Faculty of Technical Sciences, University of Novi Sad

July 20, 2024 - July 20, 2024

Creating fully functional application for booking reservations for flights and hotels. Controlling huge datasets and organizing them, using relational databases and non-relational. Developing backend functionalities of the app.

School Project at Faculty of Technical Sciences, University of Novi Sad

October 20, 2024 - October 20, 2024

Developing convolutional neural network for car detection systems on highways. Collecting and preparing data, defining CNN architecture with convolutional layers, their pooling layers and fully connected layers. Training with certain images and performing mathematical operations to train complex model.