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Kingsley Benjamin Obi

Senior AI Research Engineer - RLHF & Safety Red-Teaming

USA flagSan Francisco, Usa
ExpertOther

Key Skills

Software

Other

Top Subject Matter

Large Language Models
Safety Evaluation
AI Alignment

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

RLHFRLHF
Entity (NER) ClassificationEntity (NER) Classification

Freelancer Overview

Senior AI Research Engineer - RLHF & Safety Red-Teaming. Brings 12+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Master of Science, Stanford University (2018) and Bachelor of Science, University of Michigan (2015). AI-training focus includes data types such as Text and labeling workflows including RLHF and Entity (NER) Classification.

Expert

Labeling Experience

Senior AI Research Engineer - RLHF & Safety Red-Teaming

TextRLHF
As a Senior AI Research Engineer at OpenMind AI, I led the design and deployment of large-scale RLHF pipelines for training and evaluating instruction-following LLMs. My work included developing automated red-teaming frameworks to identify safety failures and iterative reward modeling to improve model behavior. I directly contributed to the creation, review, and expansion of labeled datasets used for pre-training and reinforcement learning feedback. • Led and implemented RLHF with both PPO and custom reward modeling techniques • Developed automated frameworks for model safety evaluation via red-teaming • Improved LLM benchmarks with targeted intervention strategies and policy filters • Managed data quality and robustness checks on labeled corpora used for alignment research

As a Senior AI Research Engineer at OpenMind AI, I led the design and deployment of large-scale RLHF pipelines for training and evaluating instruction-following LLMs. My work included developing automated red-teaming frameworks to identify safety failures and iterative reward modeling to improve model behavior. I directly contributed to the creation, review, and expansion of labeled datasets used for pre-training and reinforcement learning feedback. • Led and implemented RLHF with both PPO and custom reward modeling techniques • Developed automated frameworks for model safety evaluation via red-teaming • Improved LLM benchmarks with targeted intervention strategies and policy filters • Managed data quality and robustness checks on labeled corpora used for alignment research

2021 - Present

Graduate Research Assistant – NER Annotation & Toolkit Development

OtherTextEntity Ner Classification
As a Graduate Research Assistant in Stanford's NLP Lab, I developed a multilingual NER toolkit for cross-lingual transfer learning and zero-shot NLP research. The role involved extensive manual and semi-automated labeling of text datasets across multiple languages for entity recognition tasks. Collaboration included dataset creation, review, and toolkit maintenance for academic and research use. • Built and maintained a multilingual NER annotation pipeline • Labeled and reviewed entity-level text data in at least 12 languages • Created datasets supporting zero-shot and cross-lingual benchmarks • Led open-source project adoption in global research communities

As a Graduate Research Assistant in Stanford's NLP Lab, I developed a multilingual NER toolkit for cross-lingual transfer learning and zero-shot NLP research. The role involved extensive manual and semi-automated labeling of text datasets across multiple languages for entity recognition tasks. Collaboration included dataset creation, review, and toolkit maintenance for academic and research use. • Built and maintained a multilingual NER annotation pipeline • Labeled and reviewed entity-level text data in at least 12 languages • Created datasets supporting zero-shot and cross-lingual benchmarks • Led open-source project adoption in global research communities

2015 - 2018

Education

S

Stanford University

Master of Science, Computer Science

Master of Science
2015 - 2018
U

University of Michigan

Bachelor of Science, Computer Science and Mathematics

Bachelor of Science
2011 - 2015

Work History

O

OpenMind AI

Senior AI Research Engineer

San Francisco
2021 - Present
D

DataSphere Technologies

Machine Learning Engineer II

Seattle
2018 - 2021