Ruben Kos

Born digital.

Born in a small town close to Amsterdam, my passion for design started at a young age. After spending a lot of time behind computers, during my younger years, I developed into a digital enthusiast who loves to create new things and tackle challenging problems with smart concepts.


  • Google, Toronto

    UX Lead

    2021 — Present

    UX at Google needs no introduction. Played a key role in the launch of a sovereign cloud platform, which unlocks significant revenue potential.

    • Leading a high-functioning UX team making strong impact
    • Responsible for the release of a new enterprise product
    • Created a new design system to ensure consistency across the product
    • Acting as a mentor for early-career UX and Visual Designers
    • Created new processes and partnerships for cross-functional collaboration
  • IBM Design, Dublin

    Product Design Lead (UX & Visual)

    2016 — 2021

    IBM Design was created to steer one of the largest technology companies, into a design-driven culture. With a strong design philosophy and some of the best thought-leaders in design and in the industry, IBM has disrupted some of the largest markets in the world.

    • Responsible for the IBM Cloud Partner experience for partners to grow and scale their business
    • Responsible for the release of a new experience to over 50,000 users
    • Acting as a mentor for early-career UX and Visual Designers
    • Improve processes and partnerships for cross-functional Agile collaboration
    • Implement Design Thinking methodology across cross-functional teams
    • Facilitate numerous on-site and remote Design Thinking workshops
    • Advocate for the use of a unified Design System for designers and engineers
  • ebow, Dublin

    Senior Designer (UX & Visual)

    2015 — 2016

    One of Ireland’s leading creative digital agencies, located in the heart of Dublin. ebow specializes in digital marketing and design for prestigious clients. Having in-house specialists for many digital facets, gives ebow a unique position in the market.

    • Raised the quality of work within the agency with intuitive solutions
    • Led a team of four UX and Visual Designers to ensure a higher level of quality
    • Challenged development to become more involved in the Design Process
    • Won multiple pitches to retrieve new clients with creative concepts
    • Developed a new online presence for Kerrygold with tailored content for over 10 regions
    • Created various online platforms for Dublin Airport Authority
    • Increased online conversion for car insurances for AXA Insurance
  • Buyerminds, Amsterdam

    Medior Designer (UX & Visual)

    2013 — 2015

    Buyerminds specializes in behavioral psychology for digital products. By applying these techniques, Buyerminds is able to maximize conversion rates, boost retention and more. Due to their unique approach, they have grown into an agency with multiple offices around the world.

    • Used psychology theories to improve consumer behaviour
    • Led the full re-design of SEAT’s online presence
    • Increased numbers of test drives by 20% for Mercedes-Benz in collaboration with N=5
    • Won the award of Best Health Insurance Website with a redesign for Zilveren Kruis
    • Increased online conversion by 35% for Flying Blue - American Express charge cards
    • Helped multiple start-ups to increase their conversions
  • Ogilvy & Mather, Amsterdam

    Medior Visual Designer

    2011 — 2013

    Ogilvy is one of the largest advertising agencies in the world. The office in Amsterdam is focused on making brands matter. Something that sounds simple, but is actually one of the greatest challenges in today’s very fragmented communications world.

    • Won multiple digital pitches to retrieve new large accounts
    • Increased online influence for the Ford Ka in the Netherlands
    • Created online awareness for Philips as a partner of the Rijksmuseum
    • Increased brand awareness for Nescafé
    • Created multiple online campaigns for American Express
    • Designed and developed an online social campaign for IBM

Selected clients.

Over the course of the last few years, I have had the privilege to work with great people at the best companies to solve their users' problems and reach their business goals.


  • Ruben is a phenomenal designer that pushes the boundaries of user experience. He takes a user-centric approach and is comfortable engaging with users on a regular basis to ground his work in user data and validation. He establishes a modern and bold point of view but is always open to feedback from the team and is able to adjust to business needs. He works well in an agile environment, sprinting collaboratively with developers and is always an advocate for improving process and practice. I've had the pleasure of having Ruben on my team for a couple of years now and have always been impressed by his concepts and his pixel perfect designs.

    Salman Sheikh Salman SheikhManaged Ruben directly Design Director at IBM
  • Ruben is a passionate, hard working visual designer who brings immense value to any team. Not only are his visual skills top quality, he is able to approach a difficult situation with a level head and a unique solution. I highly recommend Ruben to anyone looking for a creative problem solver, a team player, a thought leader, and a rockstar performer.

    Rebecca Danna Rebecca DannaManaged Ruben directly Design Researcher at Google
  • Ruben is one of those designers you always wanted to have on your team. We had the pleasure to work with Ruben since 2011, as an intern. Thereafter he started his professional career with us as an interactive visual designer. He is talented and ambitious, fast and takes his responsibility. I would recommend Ruben highly.

    Rik Ledder Rik LedderSenior to Ruben CEO at TBWA/NEBOKO
  • Throughout his time with ebow, Ruben was responsible for producing best-in-class design work for clients, with a focus on creating innovative solutions based on user behaviour. Ruben has his finger firmly on the pulse of the latest design innovations, and is always eager to learn and problem solve. I would have no hesitation in recommending him for future roles.

    Sharon Murray Sharon MurrayManaged Ruben directly Director at ebow


  • 19Interaction Design
    • +16
  • 16Web Design
    • +13
  • 11Adobe Photoshop
    • +8
  • 6CSS
    • +3