Vitali Lesniko
I am a detail-oriented QA and data annotation professional with hands-on experience in quality assurance and data labeling for AI/ML projects.
About
I am a detail-oriented QA and data annotation professional with hands-on experience in quality assurance and data labeling for AI/ML projects.
I excel at following complex guidelines, maintaining consistency, and delivering accurate results, and I am eager to contribute to AI training and Computer Vision initiatives across diverse projects and clients.
- 5 years' experience
- Joined December 2025
Skills· 3
Languages
- RussianFluent
- EnglishIntermediate
- PolishIntermediate
Industry experience
- Software & Internet
- Media & Entertainment
- Travel & Hospitality
- Professional Services
Work experience· 6 roles
Perform functional testing of web and mobile applications for various clients. Identify, document, and report software bugs and inconsistencies with high accuracy. Execute test cases and provide detailed feedback on user experience and interface design.
Performed image annotation using CVAT and Label Studio for object detection projects. Conducted temporal segmentation of video data for action recognition tasks. Annotated 1000+ images with bounding boxes. Maintained 95%+ accuracy score across all annotation tasks. Applied quality control procedures to ensure dataset consistency.
Sold package services to tourists from Poland, Bulgaria, and Romania. Conducted daily sales presentations for groups of 20-50+ people. Managed complete client lifecycle from arrival to conflict resolution. Achievement: Consistently exceeded sales targets 2023-2024.
Education
Certifications and awards· 8
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