Brian O.

Key Skills

Software

Labelbox

CVAT

iMerit

Remotasks

Scale AI

Top Subject Matter

Fintech AI Training & Financial Data Annotation

Technical Audio/Video Transcription & Multi-Speaker Alignment

Data Analytics & Corporate Data Management (or Business Intelligence & Systems Analysis)

Top Data Types

Image

Audio

Text

Document

Top Task Types

Bounding Box

Transcription

RLHF

Prompt + Response Writing (SFT)

Data Collection

Evaluation/Rating

Segmentation

Freelancer Overview

Detail-oriented Data Specialist and IT Graduate with over 3 years of proven expertise in high-accuracy data annotation, complex audio/video transcription, and Large Language Model (LLM) tuning. Highly proficient in advanced methodologies including Reinforcement Learning from Human Feedback (RLHF), semantic labeling, image segmentation, and multi-speaker tracking. I consistently maintain a 99%+ quality standard across high-volume, fast-paced remote workflows using industry-standard platforms like Labelbox, Scale AI, and CVAT. My technical background includes a Bachelor of Science in Information Technology and specialized domain expertise in Fintech systems engineering. I have successfully annotated over 15,000 transaction logs and video frames, and transcribed more than 200 hours of technical financial data, delivering optimized datasets ready for direct API and machine learning ingestion.

Labeling Experience

Remote Data Annotator & Fintech Systems Specialist (Freelance/Remote Contracts) - Transcription

AudioTranscription

Transcription and time-stamped audio-to-text work to support AI training for technical and multi-speaker content. Produced verbatim and intelligent verbatim transcripts while maintaining high accuracy through careful review cycles. Delivered structured outputs suitable for downstream NLP and retrieval or analytics workflows.• Transcribed 200+ hours of complex technical audio including product focus group sessions and financial webinars.• Maintained an accuracy rating of 98.5% through quality assurance and corrections.• Produced precise time-stamped transcripts for alignment with media and model consumption.• Completed assignments to strict client deadlines within Agile remote workflows.

2023 - Present

Remote Data Annotator & Fintech Systems Specialist (Freelance/Remote Contracts)

LabelboxImageBounding Box

Remote data annotation and AI dataset preparation for fintech-related computer vision. Labeled transaction-related visual data using bounding boxes, polygons, and semantic segmentation to support model training. Performed iterative quality checks to ensure dataset consistency, format correctness, and reduced demographic bias.• Annotated 15,000+ financial transaction logs, images, and video frames for AI training datasets.• Applied bounding boxes and polygon labeling plus semantic segmentation for supervision targets.• Audited and corrected pre-labeled datasets to remove formatting, syntax, and bias issues.• Exported final annotations into JSON, XML, and CSV for API-ready ingestion.

2023 - Present

Education

Work History