Timothy A.

Key Skills

Software

AWS SageMaker

CrowdSource

Scale AI

Toloka

Mindrift

Micro1

CVAT

Top Subject Matter

Software engineering & code review

Multilingual NLP annotation

Automotive - Image classification and annotation

Top Data Types

Video

Text

Computer Code Programming

Top Task Types

Polygon

Computer Programming/Coding

RLHF

Segmentation

Freelancer Overview

First Class CS graduate and active Flutter developer. I specialise in code evaluation, RLHF preference ranking, and STEM annotation bringing real software engineering judgment, not just guideline compliance.

Labeling Experience

Quality Analyst

Computer Code ProgrammingComputer Programming/Coding

I Wrote and validated programming prompts across difficulty levels (beginner to advanced) to expand model training coverage. I Evaluated and ranked AI-generated code responses across Python, JavaScript, and SQL to support RLHF fine-tuning of large language models. Flagged ambiguous edge cases and contributed feedback to annotation guideline updates. Annotated natural language explanations of code snippets for factual accuracy and clarity.

2026 - 2026

ML Data Associate

VideoPolygon

Annotated dashcam and LiDAR footage for autonomous vehicle perception models, labeling pedestrians, cyclists, vehicles, traffic signs, and road markings across varied weather and lighting conditions Applied 2D bounding boxes and polygon segmentation on 300+ frames daily using diverse range of annotation platforms

2025 - 2025

Education

Work History