Jefferey R.

Key Skills

Software

Scale AI

Other

Top Subject Matter

LLM training data curation and evaluation for spreadsheet reasoning

Excel data preparation

Validation Domain Expertise

Top Data Types

Text

Top Task Types

RLHF

Freelancer Overview

Freelance AI Trainer & Data Analyst (Independent / Various AI Research Clients). Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI and Other. Education includes Bachelor of Science, Texas State University (2016). AI-training focus includes data types such as Text and labeling workflows including RLHF, Evaluation, and Rating.

Labeling Experience

Freelance AI Trainer & Data Analyst (Independent / Various AI Research Clients)

Scale AITextRLHF

Freelance AI Trainer curated and annotated large volumes of structured spreadsheet-related tasks to train and evaluate large language models for foundation-model research. Work included ensuring consistency and accuracy requirements for downstream model learning and iteration. Responsibilities covered dataset preparation, quality control, and feedback loops that informed fine-tuning and evaluation outcomes. • Curated and annotated 50,000+ structured tabular/financial/analytical tasks for LLM training and evaluation • Authored reproducible documentation of spreadsheet logic and data methodologies adopted by AI pipelines • Performed expert review of AI-generated Excel outputs (formula errors, logic gaps, edge cases) • Collaborated with distributed research teams delivering annotated datasets and evaluation reports on timelines

2021 - Present

Economic Research Assistant (Freelance)

OtherText

Economic Research Assistant work focused on preparing and verifying Excel-based datasets and models used for business decision support, including cleaning and restructuring large exports for reliability. The role involved building repeatable spreadsheet workflows and automating reporting via macros to improve turnaround time and reduce manual effort. While not explicitly labeled as AI training, the responsibilities aligned with rigorous data preparation and validation that can support AI/data-labeling workflows. • Designed and maintained multi-sheet Excel financial models (profit-and-loss, cash flow forecasts, variance dashboards) • Cleaned and restructured large datasets (10,000–100,000 rows) exported from ERPs/accounting tools • Automated monthly financial reporting workbooks using VBA • Built pivot-table reporting suites consolidating multiple operational data sources for stakeholder self-serve insights

2016 - 2021

Education

Work History