Koushik Halder

Results-driven Remote Data Specialist with 4+ years of experience in data annotation, high-accuracy transcription, and database management. Specialized in labeling complex datasets for AI/ML model training with a consistent 98% accuracy rate. Leverages technical proficiency in Python to streamline data workflows and ensure high-quality output for technical projects.

Data Annotation & Labeling Specialist (Freelance) at Remote Operations (2021-01 – Present)

• Annotate and categorize large-scale image and text datasets for AI/ML training, maintaining a 98%+ accuracy rating.
• Execute complex labeling tasks following strict technical guidelines to ensure model training consistency.
• Identified and corrected dataset errors, improving overall data quality and validation scores for client projects.

Audio Transcriptionist (Freelance) at Remote Operations (2022-01 – Present)

• Transcribe diverse audio files with high precision, managing multiple accents and varying audio quality levels.
• Consistently deliver projects ahead of schedule, meeting tight deadlines for high-priority business transcripts.
• Ensure 100% adherence to formatting, grammar, and client-specific stylistic standards.

Data Management Assistant at Laxmi Kamal Bhandar (2020-01 – 2025-01)

• Managed inventory records and daily business data, reducing reporting errors by 15% through improved verification.
• Automated basic reporting tasks using Microsoft Excel, enhancing data visibility for management.
• Organized and maintained secure digital databases for historical record-keeping and inventory tracking.

Home Tutor at Self-Employed (2018-01 – 2024-01)

• Developed customized educational plans for students, improving academic performance through structured mentoring.
• Strengthened time management and communication skills by managing multi-student schedules and parental updates.

Bachelor of Science in Biology – University of Calcutta, India (2020-01)

Higher Secondary Education – Diamond Harbour High School, India (2017-01)