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Mizuka MMM
Open to opportunities

Mizuka M

@mizukam

AI quality specialist leveraging bilingual evaluation to improve frontier model performance.

Japan
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What I'm looking for

I’m looking for a fast-paced, global team where I can improve AI dataset and output quality through rigorous QA, multilingual evaluation, and feedback-driven benchmarking—while collaborating cross-functionally to deliver consistently high results.

I’m an AI Quality Assurance Specialist focused on evaluating document-annotation quality and validating training datasets for accuracy, consistency, and compliance. I also build multilingual prompts and benchmark frontier AI outputs—checking instruction following, factual accuracy, writing quality, safety, and cultural relevance to help models perform reliably across languages.

Across recent roles as an AI Trainer and AI Tutor, I’ve improved speech and conversational dataset quality through multilingual voice evaluations, model response ranking, and feedback-driven iteration. I also bring 10+ years of client relationship management, operations, sales, and leadership experience from my Director of Commercial Real Estate background—translating that same attention to detail, negotiation, and process improvement into high-quality AI work.

Experience

Work history, roles, and key accomplishments

DataAnnotation logoDA
Current

AI Trainer

DataAnnotation

Jan 2025 - Present (1 year 6 months)

Created multilingual prompts and evaluated AI outputs for instruction following, reasoning, factual accuracy, writing quality, safety, and cultural relevance. Benchmarked competing models and assessed multilingual voice datasets to improve conversational AI quality.

OG

Director of Commercial Real Estate

Oxford Property Group

May 2014 - Apr 2026 (11 years 11 months)

Directed commercial leasing, investment sales, and development transactions across the New York City market. Led negotiations, marketing strategies, and end-to-end transaction management while conducting market research for domestic and international clients.

XAI logoXA

AI Tutor

Jul 2025 - Dec 2025 (5 months)

Curated high-quality Japanese and English datasets for Grok’s Companion, Voice, and Conversation experiences. Conducted multilingual QA on AI outputs and developed prompts, annotations, and evaluation datasets to improve conversational accuracy and linguistic quality.

OU

AI Trainer /Japanese Linguist

Outlie

Jun 2024 - Jun 2025 (1 year)

Trained frontier AI models using RLHF, Side-by-Side (SxS) evaluation, prompt engineering, multilingual content creation, and data annotation. Evaluated multimodal outputs (text, image, table, graph, voice) and ranked responses with feedback to improve instruction following, accuracy, localization, and conversational quality.

Pace University Lubin School of Business logoPB

Transformative Leadership Board Member

Pace University Lubin School of Business

May 2020 - May 2022 (2 years)

Advised faculty on development of the Transformative Leadership Program curriculum and mentored students. Collaborated with board members and participated in leadership forums to strengthen industry–academic partnerships.

KR

Licensed Real Estate Salesperson

Kian Realty

Jan 2012 - Apr 2014 (2 years 3 months)

Marketed residential and commercial properties and advised buyers, sellers, landlords, and tenants on market trends, valuation, and transaction strategies. Prospected new business via cold calling, negotiated contracts, and guided clients through sales and leasing processes.

Education

Degrees, certifications, and relevant coursework

University of California, Davis logoUD

University of California, Davis

Specialization, Search Engine Optimization (SEO)

2023 -

Ongoing SEO Specialization at the University of California, Davis (03/2023–present).

Harvard University logoHU

Harvard University

Course, Artificial Intelligence

2023 -

Ongoing CS50’s Introduction to Artificial Intelligence with Python at Harvard University (03/2023–present).

Yale University logoYU

Yale University

Course, The Science of Well-Being

2020 - 2022

Completed The Science of Well-Being course at Yale University (04/2020–06/2022).

Pace University Lubin School of Business logoPB

Pace University Lubin School of Business

Program, Transformative Leadership

Completed the Lubin Transformative Leadership Program at Pace University (05/2020–08/2020).

Yale University logoYU

Yale University

Course, Introduction to Psychology

Completed the Introduction to Psychology course at Yale University (05/2020–09/2020).

Stanford University logoSU

Stanford University

Course, Food and Health

Completed the Stanford Introduction to Food and Health course (03/2020–07/2020).

NI

New York Real Estate Institute

Real Estate Salesperson License, Real Estate

Completed the New York State Real Estate Salesperson license (11/2011–12/2011).

University of Central Missouri logoUM

University of Central Missouri

Bachelor of Science, Business Administration and Management

2006 - 2008

Earned a Bachelor of Science in Business Administration and Management from the University of Central Missouri (2006–2008).

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