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Tosin K.

Tosin K.

Senior AI Trainer & Linguistic QA Lead (RLHF & Linguistic QA) — Scale AI

Nigeria flagRemote, Nigeria

Key Skills

Software

Scale AIScale AI
RemotasksRemotasks
Other

Top Subject Matter

LLM training (RLHF)
chatbot evaluation
linguistic QA

Top Data Types

TextText
ImageImage
VideoVideo
AudioAudio
DocumentDocument

Top Task Types

Fine-tuningFine-tuning
Object DetectionObject Detection
Bounding BoxBounding Box
SegmentationSegmentation
TrackingTracking
ClassificationClassification
Point/Key PointPoint/Key Point
TranscriptionTranscription

Freelancer Overview

Senior AI Trainer & Linguistic QA Lead (RLHF & Linguistic QA) — Scale AI. Brings 6+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Scale AI, Remotasks, and Outlier AI. Education includes Bachelor of Arts, State University of New York (2021) and Professional Certifications (2025). AI-training focus includes data types such as Text, Image, and Video and labeling workflows including Fine-tuning, Object Detection, and Bounding Box.

Labeling Experience

Scale AI

Senior AI Trainer & Linguistic QA Lead (RLHF & Linguistic QA) — Scale AI

Scale AIScale AITextTextFine-tuningFine-tuning

Evaluate, rank, and rewrite AI responses for preference ranking and justification; enforce linguistic QA and factuality; identify and patch structural edge-case flaws via red-teaming scenarios.

2024 - Present
Remotasks

Data Annotation Specialist & Evaluation Analyst — Remotasks / Outlier AI

RemotasksRemotasksImageImageObject DetectionObject DetectionBounding BoxBounding Box

Applied bounding boxes, semantic segmentation, and keypoint tracking labels to image/video frames; categorized social media items for moderation and sentiment; labeled search query-response relevance; tagged/segmented multi-speaker audio for ASR training.

2022 - 2023

Multilingual Localization & Transcription Analyst — RWS Group / Independent Contractor

OtherTextTextTranscriptionTranscriptionClassificationClassification

Time-stamped transcriptions with verbatim accuracy; annotated emotional triggers/intent in marketing media; performed translation/localization preserving tone across English/Spanish variants.

2021 - 2022

Education

S

School not specified

Professional Certifications

Professional Certifications
2022 - 2025
S

State University of New York

Bachelor of Arts, Linguistics (Minor in Computer Science)

Bachelor of Arts
2017 - 2021

Work History

S

Scale AI

Senior AI Trainer & Linguistic QA Lead

Remote
2024 - Present
R

Remotasks / Outlier AI

Data Annotation Specialist & Evaluation Analyst

Remote
2022 - 2023