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.

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 she combines her love for culture-shaping solutions with a commitment to nurturing character development across ages.

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. Sarah thrives at the intersection of systems and storytelling—bringing people together to co-create, building joyful operations, and championing entrepreneurship grounded in healthy rhythms. You can often find her with her Nintendo Switch in hand or dreaming up new ways to make work more human and fun.

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
Head of UI/UX Design & Website

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.

Bob Zalk
Bob Zalk

Disney Imagineer for 30+ years, Professor at Biola University

Andrew Feng
Andrew Feng

International Nonprofit and Social Impact Leader

Emily Timmer
Emily Timmer

Multidisciplinary Filmmaker, Documentarian, and Artist

Riya Plam
Riya Plam

Art Director, Design Strategist

Sarah Caleb
Sarah Caleb

Mindset Coach, Mental Health Consultant

Christina Bacino
Christina Bacino

Cognitive Behavior Coach

Kristen Ho
Kristen Ho

Behavioral Analyst

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.

The Choi Family
Hannah Choi & Family

Mama, Cycle Breaker, Wordle Enthusiast

The York Family
Yorks Family

Parents of 3, Life Mentors, Business Coaching

The Whitlock Family
Whitlock Family

Parents of 2, Entrepreneur, Pastor and Thought-Leader