Guillermo Ermel

Product Manager & Senior UX researcher @ Proper Technologies Inc.
Former mercadolibre.com UX research lead, 20+ years experience
Netherlands 5.0 (3 reviews) Active today
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Services

$240 / month

I specialize in young professionals committed to their personal and professional growth.

Regular calls, per agreement

Unlimited Q&A via chat

Expect responses in 24 hours or less

Hands-on support

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About

I began mentoring in 2009—way before MentorCruise existed—and have since had the joy of guiding hundreds of professionals across diverse fields, with a strong focus on user experience.

Are you ready to engage in honest, open conversations about your projects, professional fears, and aspirations? I’ll be by your side every step of the way, and we’ll have fun along the journey, using plenty of role-playing and interactive exercises to bring out your best.

Together, we’ll craft a step-by-step action plan tailored to your goals—whether you're preparing for your next interview, planning a career change, or tackling a challenging product design project.

I bring 15 years of experience in hiring, coaching and training—helping many young professionals secure roles at companies like Facebook, Booking and MercadoLibre—and more than 20 years of experience leading research projects in e-commerce, fintech, travel, agrotech, property management and other industries.

Feeling ready to challenge the status quo? Take the first step—book your session and let’s craft your success story!

Open to inquiries

You can message Guillermo to ask questions before booking their services

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What mentees say

Danielle

Danielle

5 out of 5 stars

Standard Plan · 
6 months

I'm incredibly fortunate to have Guillermo as my mentor on my UX design journey. His expert guidance and experience of over 20+ years have been pivotal in shaping my portfolio and design mindset. Guillermo skillfully helped me create a robust research plan and method, setting the foundation for successful projects. His insights refined my interview pitch, enhancing my interactions and data collection. What's truly remarkable is Guillermo's ability to foster collaboration and empowerment. Their constructive feedback fueled my growth and creativity, leading to a portfolio I'm immensely proud of. Beyond projects, Guillermo shared real-world wisdom and resources, expanding my perspective. Their mentorship is transformative, emphasizing empathy and lifelong learning in UX design and research. In summary, Guillermo is an exceptional mentor who blends expertise with genuine care. If you're seeking impactful UX mentorship, I wholeheartedly recommend Guillermo.

Eddy

Eddy

5 out of 5 stars

Standard Plan · 
1 month

I love the work that Guillermo does as a mentor, from the beginning I could see that he cares about helping me discover my true worth and is helping me to develop it further, and all this based on a real appreciation of the situation and your talents.



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