Meet the Team

Comprised of passionate Gen Z and Millennial creators, our team is uniquely qualified to bring you MILLU. We are the bridge between childhood and parenthood. We work closely with our parent and advisory boards to create an intergenerational feedback loop spanning 7 decades.

Sarah Hartono
Sarah Hartono
Co-Founder, COO

Sarah is a marketer, designer, and creative operator with a background at companies like Nintendo and Quizlet, where she discovered how gamification and innovative tools can transform learning. Her passion for bridging generations through education led her to co-found MILLU, where she merges tech and tradition to design meaningful, impact-driven learning experiences.

Sena Lee
Sena Lee
Co-Founder, CEO

Growing up, Sena often reflected on life’s deeper meanings and our collective roles in society. She spent her 20’s leading humanitarian efforts in the Middle East, Europe, and Africa, driven by a commitment to understand and address global challenges collaboratively. A creative problem solver and passionate advocate for human-centered design, Sena combines her love for culture-shaping solutions with a commitment to nurturing character development across ages.

Shirleen Ahn
Shirleen Ahn
Head of Design & Creative Director

Shirleen is a visual storyteller with a focus in graphic design and illustration. She likes to explore the feeling of joy that can come from mundane things. She values authenticity— a commitment to creating with intention and heart.

Stephen Oey
Stephen Oey
Web Designer

A creative in a variety of interests. Stephen builds user experiences based on compassion and playfulness. He strives to make designs that are easy to use and accessible for everyone.

Advisory Board

Our advisors help us dream and have a pulse on the struggles parents are facing every day. They give us strategic guidance in addition to helping us reach the next level of serving families.

Andrew Feng
International Nonprofit and Social Impact Leader
Bob Zalk
Disney Imagineer for 30+ years, Professor at Biola University
Christina Bacino
Cognitive Behavior Coach
Emily Timmer
Multidisciplinary Filmmaker, Documentarian, and Artist
Kristen Ho
Behavioral Analyst
Riya Plam
Art Director, Design Strategist
Sarah Caleb
Mindset Coach, Mental Health Consultant

Family Board

Who better to get feedback from than parents themselves? Our parents are passionate about building healthy family dynamics and have beta-tested our products since Day 1.

Hannah Choi & Family
Mama, Cycle Breaker, Wordle Enthusiast
Whitlock Family
‍Parents of 2, Entrepreneur, Pastor and Thought-Leader‍
Yorks Family
‍Parents of 3, Life Mentors, Business Coaching‍

Interested in Partnering With Us?

Whether you're interested in collaborating as an advisor, or wanting to connect as a family, we'd love to grow alongside you!

Let's connect!