Product Design advisor & mentor

Jonah helps teams to build better products in less time by advising and mentoring on product, design, and leadership.

Jonah believes in the power of design to improve people's lives, blending an analytical and creative approach with a broad range of inspirations to create delightful and innovative experiences that have real meaning for the people who use them.

He helps organisations to improve impact, quality, and speed. Working closely with founders and cross functional teams, he helps teams to think bigger strategically, execute tactically with more quality, and operate with more efficiency.

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Strava    FATMAP

Sports, Travel

Advising and mentoring the CEO, CPO, and design team for Strava, the largest sports community in the world.

“Jonah adds huge value across strategy and UX, leaning on his experience of best practices from fast moving consumer products. He is able to articulate and hone founder insights, and guide the team to think in the right way, move fast, and understand each other better. Jonah is helping us to anticipate and solve issues with both product and people. He is coaching the company to operate in the way of the best Silicon Valley companies.”

- Misha Gopaul, VP of Product at Strava & Founder of FATMAP



Advising the CPO and CEO, and mentoring product, design & research leadership teams for Waze, helping 140+ million drivers and riders outsmart traffic together

“Jonah was highly valuable to our team, providing objective mentorship, advising on best practices and helping us develop a long term UX vision that aligns with Waze's emerging strategy. Jonah advised and provided me with a framework to understand exactly how to build and support the UX team as their manager. His vision in viewing the product holistically from a users perspective was essential in determining which processes and steps are needed to scale sustainably.”

- Elad Stein, Head of UX, Waze

EA Criterion

Gaming, Entertainment

Jonah is a true powerhouse in the world of product development and leadership. He's not just a seasoned professional; he's a true analytical thinker with a deep love for what he does. Jonah's wisdom and warmth will leave an everlasting impact on your journey.”

- Steve Cuss, Studio Head, EA Criterion Games


Apple App of the Year

Streaming, Entertainment

Advising the VP of Product on product and design for MUBI, the online movie theater to watch, discover, and discuss auteur cinema

“Collaborating with Jonah has led to a step-change in our approach to product design. His deep experience and cross-disciplinary approach to strategy interweaves ideas, which elevates and refines them. His people-centric focus in critiques pushes us to dive deeper into the ‘why’ behind what we build.”

- Narain Jashanmal, VP of Product, MUBI


Apple App of the Day

Mental Health, Wellness

Advising the founding team at Mettle, the toolkit for men's minds.

“What’s brilliant about Jonah is that he is so detail and action focused. Something tech start-ups can struggle with is advisors giving general pointers, which someone then has to try to interpret. Jonah comes with specific action points and they are laser focused and make a big difference. His huge experience means he can quickly identify a problem and come up with practical and easy to implement solutions. This has been like gold dust for us. He’s a great guy and the team love him: our CTO refers to Jonah as the Mark Ronson to our Amy Winehouse, he comes in to polish the product and make it truly sing for a big audience.”

- Neil Smith, Founder & CEO, Mettle


reddot winner 2023

Healthcare, Wellness

Advising the CPO, design & research teams of Nanoleq Oxa, the first breathing wearable with live biofeedback for stress & sleep

“Jonah is clearly a visionary — one of very few that can push the boundaries of product design and challenge the status quo. This gives him a remarkable ability to act as a catalyst for designers and managers to unlock the full potential of a product. Jonah's guidance has been essential in creating a unique and engaging experience for Oxa, a complex full-stack health-tech product.”

- Vincent Martinez, Founder & CEO, Nanoleq


Google Play Best App


Advising the cofounders, mentoring the product & design team at Spotangels, helping drivers to outsmart parking together

“Working with Jonah is one of the best things that happened to SpotAngels. He helped us put principles for product and design in place, which saved us precious time and made our execution substantially better. He has also helped us grow as leaders and operators by providing honest and to-the-point feedback. Not only is Jonah an impressive operator and mentor, but he is also incredibly caring and dedicated. Jonah is a world-class advisor who can accelerate trajectories. I strongly recommend him to any startup that he is interested to work with.”

- Hamza Chadhi, Founder & CEO, SpotAngels


AI, Collaboration

Advising and mentoring the CEO, CPO, design & research team of tl;dv, freeing time from meetings with an AI powered video recorder

“Jonah is advising tl;dv on the entire product and design spectrum, ranging from hands-on design advice to operational coaching and people development. We started out our sessions with just the CEO and head of design, by now more and more people from the team are joining his sessions - it's THAT helpful. Working with Jonah is not only helping us think bigger and bolder, but also develops our confidence to execute across the entire team. It's really inspiring for us to experience first hand how such a seasoned senior leader still has access to a fountain of creativity as if it was his first day in design.”

- Raphael Allstadt, Founder & CEO, tl;dv


AI, Advertising

Advising the cofounders of RealEyes, the best Emotion AI platform in the world

“Jonah has been instrumental in helping frame and pitch product opportunities clearly. His experience brings a multitude of perspectives that help you focus and progress faster with the things that really matter.”

- Martin Salo, Founder & CPO, RealEyes


Privacy, B2B

Advising the co-founders and mentoring the design team for Metomic, the best data loss prevention software for SaaS

“Jonah has provided the entire product team with strategic and tactical input on the execution of the product, and how to use shortcuts to speed up the testing and learning process. He also provided invaluable 1-1 coaching to our design team and we saw material improvement across the board after just a couple of months.”

- Rich Vibert, Founder & CEO, Metomic


Social, Community

Advising the cofounders at OneRoof,
connecting neighbours to have a fun, supportive, and resourceful community.

“Working with Jonah has been an invaluable experience. His expertise in community-first design and strategy was crucial in helping our platform resonate deeply with our users. His innovative and practical approach to problem-solving helped us refine our ideas, enhancing the app’s functionality and aesthetic appeal. His guidance was instrumental in increasing user engagement and retention. We are deeply grateful for Jonah’s invaluable contribution to OneRoof and I highly recommend his mentorship to anyone seeking to develop a product with a strong focus on community engagement and retention.”

- Nikos Georgantas, Founder & CPO, OneRoof


Automotive, Marketplace

Advising the VP of Product, design & research teams for Carwow, the easy way to buy and sell your car online

“Jonah is a seasoned pro; his supportive coaching has helped me transition from being a manager to a leader. His guidance has helped me identify traits and behaviours for growth in myself and carwow's Design team. Jonah is helping us change our design culture and supporting us to mature in how we give feedback and share in design critiques, increasing collaboration and how to grow design leadership in our organisation.”

- Gareth Thomas, Head of Design & Research, Carwow


Security, B2B

Advising the VP & mentoring product, design & research teams at Securitas, leading the transformation of the security industry

“Jonah worked as an advisor, coach and mentor to the team from executive level down to individual contributors. He can translate his experience operating at world class companies to valuable insights and actionable guidance. He has guided us on leadership, product strategy and execution, design and research, hiring process and evaluation, and organisational structure and operations. He adds huge value to any company that he works with.”

- Marcus Rosenberg, VP of Intelligent Services at Securitas


Navigation, B2B

Advising the founding team at Where You At, keeping young people safe and connected when enjoying nights out.

Jonah has such an inspirational perspective formed around the product and user. Working with Jonah has allowed us to look into deep level user psychology, helping to inform our strategy and development and pushing the boundaries of what we thought possible. Every session is based around structure, innovation, and solution and we can’t thank him enough for his help and expertise.”

- Saul Peleg, Head of Strategy & Partnerships, Where You At


Social, Community

Advising the founder and designer of Mush, the friendliest app for mums

“Working with Jonah was the highlight of my experience at the incubator in terms of product thinking. Jonah has given a hugely refreshing perspective, asking really intelligent questions to get us thinking about all areas of the product. He's enthusiastic, inquisitive, and he cares.”

- Katie Massie-Taylor, Founder & CEO, Mush


Social, Community

Advising the founder and designer of Tabl, exploring the world’s best food and drink experiences

“Jonah is friendly and professional, his attention and support is clearly genuine. He pushed us to answer the hard questions that mattered, which I'm really grateful for. I really couldn't have asked for more.”

- Alex Heeton, CTO, Tabl



Advising the founding team building hyper-customised software defined by you, delivered by AI.

Beautiful Destinations

AI, Travel

Advising the founding team at Beautiful Destinations, opening new doors for the next generation of traveler to truly experience the world.



Advising the founders and design team of Folk, the all-in-one CRM with one tool for all your relationships.

Greenspace Golf

Social, Community

Advising the founding team of Greenspace Golf, the #1 golfing community where golfers share their love for the greatest game.


Enterprise, B2B

Advising the founding team at RunWhen, building Google Maps for your tech stack.

Firstminute    Capnamic

All sectors

Partnering with venture capital funds and their portfolios, helping them to build category-defining companies.

GLG    Third Bridge

All sectors

Expert advisor and speaker to expert networks (GLG, Third Bridge, Guidepoint, others), bringing the power of insight to every great professional decision.

FTI Consulting


Metaverse and tech trainer for FTI Consulting and Delta Partners Group, the leading Strategy Consulting practice specialized in Telecoms, Media and Tech.

And more:

Uman Cofenster Yummy Clean Kitchen Superloyal AI Incube Wrld 3D Panoramio Facebook Oculus VR Audience Network Workplace