For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
R

Romie Steiner

Senior AI QA & iOS Engineer

USA flag
Austin, Usa
$20.00/hrExpertLabel Studio

Key Skills

Software

Label StudioLabel Studio

Top Subject Matter

Natural Language Processing (NLP) Systems
Large Language Models
Conversational AI

Top Data Types

TextText
ImageImage

Top Task Types

Prompt Response Writing SFT

Freelancer Overview

Senior AI QA & iOS Engineer. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Label Studio. Education includes Doctor of Philosophy, University of Texas at Austin (2020) and Master of Science, University of Houston (2015). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Prompt + Response Writing (SFT).

ExpertEnglishSpanish

Labeling Experience

Senior AI QA & iOS Engineer

Text
Designed and executed AI training evaluation workflows for advanced NLP-based systems. Performed human-in-the-loop validation including tasks such as ranking, classification, and correction of AI outputs. Built and managed tools for efficient dataset validation and quality improvement. • Led the development of internal tooling that increased labeling efficiency by 35%. • Oversaw and improved quality assurance for AI-integrated mobile functionalities. • Implemented automated test pipelines covering over 90% of AI training scenarios. • Conducted detailed quality audits and reviewer calibration to maintain high standards.

Designed and executed AI training evaluation workflows for advanced NLP-based systems. Performed human-in-the-loop validation including tasks such as ranking, classification, and correction of AI outputs. Built and managed tools for efficient dataset validation and quality improvement. • Led the development of internal tooling that increased labeling efficiency by 35%. • Oversaw and improved quality assurance for AI-integrated mobile functionalities. • Implemented automated test pipelines covering over 90% of AI training scenarios. • Conducted detailed quality audits and reviewer calibration to maintain high standards.

2021 - Present
Label Studio

AI Data Trainer & Prompt Engineer (Remote)

Label StudioTextPrompt Response Writing SFT
Created and optimized prompts for training large language models in multiple domains. Conducted structured evaluation and ranking of AI-generated responses following strict set guidelines. Annotated and curated datasets to identify hallucinations, bias, and inconsistencies in model outputs. • Collaborated with distributed teams to improve LLM alignment and safety. • Led data annotation across education, conversational AI, and technical domains. • Identified and documented model weaknesses impacting alignment and accuracy. • Supported bias detection and guideline development for annotation teams.

Created and optimized prompts for training large language models in multiple domains. Conducted structured evaluation and ranking of AI-generated responses following strict set guidelines. Annotated and curated datasets to identify hallucinations, bias, and inconsistencies in model outputs. • Collaborated with distributed teams to improve LLM alignment and safety. • Led data annotation across education, conversational AI, and technical domains. • Identified and documented model weaknesses impacting alignment and accuracy. • Supported bias detection and guideline development for annotation teams.

2020 - Present

Education

U

University of Texas at Austin

Doctor of Philosophy, Computer Science

Doctor of Philosophy
2015 - 2020
U

University of Houston

Master of Science, Software Engineering

Master of Science
2013 - 2015

Work History

T

Texas Tech Innovators

Mobile Developer (iOS/Swift)

Austin
2018 - 2021