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J
John “.

John “.

Founder and Managing Director of JW Hall Financial LLC

USA flagNew Braunfels, Usa

Key Skills

Software

No software listed

Top Subject Matter

Investment Banking
Wealth Management
Private Equity

Top Data Types

TextText
DocumentDocument

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Evaluation/RatingEvaluation/Rating
Question AnsweringQuestion Answering
RLHFRLHF
Fine-tuningFine-tuning
Red TeamingRed Teaming

Freelancer Overview

I have experience in AI training data and data labeling across finance, investment banking, private equity, financial modeling, investment research, and financial planning tasks. My work includes prompt response writing / SFT, RLHF response evaluation, rubric writing, golden deliverable creation, source-grounding review, failure testing, model comparison and ranking, spreadsheet annotation, financial document reasoning, and image annotation for slide decks. I have created high-quality reference responses, evaluated AI-generated outputs, built grading rubrics, reviewed financial models, and identified hallucinations, calculation errors, unsupported assumptions, weak reasoning, and instruction-following issues. Education includes Bachelor of Science in Finance, University of Louisiana at Lafayette (2024).

Labeling Experience

RLHF Evaluation for Finance Model Responses

TextTextRLHFRLHF

Compared and ranked AI responses based on accuracy, instruction-following, reasoning quality, source usage, calculation correctness, hallucination risk, and professional finance style output.

2026 - 2026

Rubric Writing for Investment Banking Workflows

DocumentDocumentEvaluation/RatingEvaluation/Rating

Created objective grading rubrics, golden deliverables, and prompts that stump models for AI responses involving DCFs, LBOs, merger models, accretion/dilution analysis, operating models, transaction summaries, and valuation write-ups.

2026 - 2026

Deliverable Creation for Wealth Management Prompts

DocumentDocumentPrompt + Response Writing (SFT)Prompt + Response Writing (SFT)

I focused on creating accurate, well-structured answers that demonstrated strong financial reasoning, correct calculations, and professional client-ready communication as well as building a rubric for a correct response.

2025 - 2026

Education

U

University of Louisiana at Lafayette

Bachelor of Science in Business Administration, Finance

Bachelor of Science in Business Administration
2020 - 2024

Work History

J

JW Hall Financial, LLC

Founder and Managing Director

New Braunfels
2025 - Present
J

J.P. Morgan Securities, LLC

Analyst

San Antonio
2024 - 2025