Digital product designer and co-founder of Strakzat

Im Bart — a designer specialising in creating user-friendly, results-oriented solutions that drive success.

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About me

Playlists

Highlights — Designed and delivered

Highlights — Designed and delivered

Highlights — Designed and delivered

Highlights — Designed and delivered

Uber

2024 - Now

Uber

2024 - Now

Uber Payments

Across Uber’s products, I worked on payment systems handling transactions and financial partner integrations at scale. This included consumer-facing flows for riders and drivers, as well as enterprise payments and internal commerce tooling supporting Uber’s broader financial ecosystem.

Impact

  • Improved support for enterprise billing and complex financial operations within Uber

  • Increased the robustness and adaptability of payment flows across products and markets

  • Enabled smoother payment method and financial experiences for both operations teams and end users

Uber Payments

Across Uber’s products, I worked on payment systems handling transactions and financial partner integrations at scale. This included consumer-facing flows for riders and drivers, as well as enterprise payments and internal commerce tooling supporting Uber’s broader financial ecosystem.

Impact

  • Improved support for enterprise billing and complex financial operations within Uber

  • Increased the robustness and adaptability of payment flows across products and markets

  • Enabled smoother payment method and financial experiences for both operations teams and end users

Uber Payments

Across Uber’s products, I worked on payment systems handling transactions and financial partner integrations at scale. This included consumer-facing flows for riders and drivers, as well as enterprise payments and internal commerce tooling supporting Uber’s broader financial ecosystem.

Impact

  • Improved support for enterprise billing and complex financial operations within Uber

  • Increased the robustness and adaptability of payment flows across products and markets

  • Enabled smoother payment method and financial experiences for both operations teams and end users

Heineken

2023 - Now

Heineken

2023 - Now

Heineken Draught Competition

Across live events and everyday bar settings, consistent beer quality and draught execution are essential. A mobile platform supports Heineken’s Star Quality Team in delivering on-site bartender training and live experiences.

Impact

  • Enabled a 2× increase in the number of bartender trainings delivered through a mobile competition platform

  • Supported live draught competitions at major international events, including Formula 1 and the Champions League

  • Increased engagement through a second-screen experience with live scoring and leaderboards

  • Provided Heineken teams with insight into participation and training outcomes via a dedicated dashboard

Heineken Draught Competition

Across live events and everyday bar settings, consistent beer quality and draught execution are essential. A mobile platform supports Heineken’s Star Quality Team in delivering on-site bartender training and live experiences.

Impact

  • Enabled a 2× increase in the number of bartender trainings delivered through a mobile competition platform

  • Supported live draught competitions at major international events, including Formula 1 and the Champions League

  • Increased engagement through a second-screen experience with live scoring and leaderboards

  • Provided Heineken teams with insight into participation and training outcomes via a dedicated dashboard

Heineken Draught Competition

Across live events and everyday bar settings, consistent beer quality and draught execution are essential. A mobile platform supports Heineken’s Star Quality Team in delivering on-site bartender training and live experiences.

Impact

  • Enabled a 2× increase in the number of bartender trainings delivered through a mobile competition platform

  • Supported live draught competitions at major international events, including Formula 1 and the Champions League

  • Increased engagement through a second-screen experience with live scoring and leaderboards

  • Provided Heineken teams with insight into participation and training outcomes via a dedicated dashboard

Spie

2023 - 2024

Spie

2023 - 2024

Spie Start

Efficient time registration for on-site employees without regular computer access and with varying levels of digital proficiency is challenging. To address this, a mobile-first time tracking tool was designed to make the process faster, clearer and more accessible.

Impact

  • Improved time registration efficiency by ~17%

  • Operational impact with an ROI equivalent to 3.4 FTE (€135K annually)

  • Increased accuracy in time reporting, reducing errors by 8–9%

  • Validated the solution through a Design Sprint and user testing, contributing to a user rating of 8.0 / 10

  • Enabled reuse and scalability through a Mendix design system, now actively used across other internal Spie tools

Spie Start

Efficient time registration for on-site employees without regular computer access and with varying levels of digital proficiency is challenging. To address this, a mobile-first time tracking tool was designed to make the process faster, clearer and more accessible.

Impact

  • Improved time registration efficiency by ~17%

  • Operational impact with an ROI equivalent to 3.4 FTE (€135K annually)

  • Increased accuracy in time reporting, reducing errors by 8–9%

  • Validated the solution through a Design Sprint and user testing, contributing to a user rating of 8.0 / 10

  • Enabled reuse and scalability through a Mendix design system, now actively used across other internal Spie tools

Spie Start

Efficient time registration for on-site employees without regular computer access and with varying levels of digital proficiency is challenging. To address this, a mobile-first time tracking tool was designed to make the process faster, clearer and more accessible.

Impact

  • Improved time registration efficiency by ~17%

  • Operational impact with an ROI equivalent to 3.4 FTE (€135K annually)

  • Increased accuracy in time reporting, reducing errors by 8–9%

  • Validated the solution through a Design Sprint and user testing, contributing to a user rating of 8.0 / 10

  • Enabled reuse and scalability through a Mendix design system, now actively used across other internal Spie tools

NHG

2023 - 2024

NHG

2023 - 2024

NHG Design System

NHG manages mortgage support processes through a digital platform used by staff and external partners. To improve consistency and usability across this growing ecosystem, a design system was introduced to create a cohesive, scalable experience aligned with NHG’s brand and Mendix platform requirements.

Impact

  • Improved efficiency across NHG’s digital tools, resulting in +19% efficiency and saving ~35 hours per user per year

  • Increased clarity and consistency, leading to 7–15% fewer errors

  • Strengthened usability and adoption, contributing to a +7% increase in motivation to use

  • Enabled more efficient and aligned design and development workflows, driving a +13% increase in overall satisfaction

NHG Design System

NHG manages mortgage support processes through a digital platform used by staff and external partners. To improve consistency and usability across this growing ecosystem, a design system was introduced to create a cohesive, scalable experience aligned with NHG’s brand and Mendix platform requirements.

Impact

  • Improved efficiency across NHG’s digital tools, resulting in +19% efficiency and saving ~35 hours per user per year

  • Increased clarity and consistency, leading to 7–15% fewer errors

  • Strengthened usability and adoption, contributing to a +7% increase in motivation to use

  • Enabled more efficient and aligned design and development workflows, driving a +13% increase in overall satisfaction

NHG Design System

NHG manages mortgage support processes through a digital platform used by staff and external partners. To improve consistency and usability across this growing ecosystem, a design system was introduced to create a cohesive, scalable experience aligned with NHG’s brand and Mendix platform requirements.

Impact

  • Improved efficiency across NHG’s digital tools, resulting in +19% efficiency and saving ~35 hours per user per year

  • Increased clarity and consistency, leading to 7–15% fewer errors

  • Strengthened usability and adoption, contributing to a +7% increase in motivation to use

  • Enabled more efficient and aligned design and development workflows, driving a +13% increase in overall satisfaction

Government

2020 - 2022

Government

2020 - 2022

GGD Contact

To support COVID-19 source and contact investigations, a secure digital solution was developed for the GGD. A web portal and mobile application were designed to speed up investigations while meeting strict privacy and security requirements, translating complex medical guidelines into clear, usable digital experiences.

Impact

  • Rolled out across multiple GGD regions nationwide

  • Supported contact tracing for thousands of cases

  • Reduced the time between positive test results and contact outreach

  • Adopted as a core component of the national COVID-19 investigations

GGD Contact

To support COVID-19 source and contact investigations, a secure digital solution was developed for the GGD. A web portal and mobile application were designed to speed up investigations while meeting strict privacy and security requirements, translating complex medical guidelines into clear, usable digital experiences.

Impact

  • Rolled out across multiple GGD regions nationwide

  • Supported contact tracing for thousands of cases

  • Reduced the time between positive test results and contact outreach

  • Adopted as a core component of the national COVID-19 investigations

GGD Contact

To support COVID-19 source and contact investigations, a secure digital solution was developed for the GGD. A web portal and mobile application were designed to speed up investigations while meeting strict privacy and security requirements, translating complex medical guidelines into clear, usable digital experiences.

Impact

  • Rolled out across multiple GGD regions nationwide

  • Supported contact tracing for thousands of cases

  • Reduced the time between positive test results and contact outreach

  • Adopted as a core component of the national COVID-19 investigations

Sitedish

2019 - 2022

Sitedish

2019 - 2022

Sitedish Multi-Platform Product Design

A unified management platform was designed for delivery and takeaway restaurants, bringing online ordering, POS, delivery management and ordering together in one solution. To support a seamless experience across touchpoints, a flexible white-label system was introduced alongside a platform-wide redesign.

Impact

  • Led the design team responsible for a multi-platform redesign now used daily by ~4,000 restaurants and 20,000+ end users

  • Unified five digital touchpoints into one cohesive design ecosystem

  • Reduced development time by ~30% through standardized and reusable design components

  • Enabled scalable customization through a flexible white-label system without compromising usability

Sitedish Multi-Platform Product Design

A unified management platform was designed for delivery and takeaway restaurants, bringing online ordering, POS, delivery management and ordering together in one solution. To support a seamless experience across touchpoints, a flexible white-label system was introduced alongside a platform-wide redesign.

Impact

  • Led the design team responsible for a multi-platform redesign now used daily by ~4,000 restaurants and 20,000+ end users

  • Unified five digital touchpoints into one cohesive design ecosystem

  • Reduced development time by ~30% through standardized and reusable design components

  • Enabled scalable customization through a flexible white-label system without compromising usability

Sitedish Multi-Platform Product Design

A unified management platform was designed for delivery and takeaway restaurants, bringing online ordering, POS, delivery management and ordering together in one solution. To support a seamless experience across touchpoints, a flexible white-label system was introduced alongside a platform-wide redesign.

Impact

  • Led the design team responsible for a multi-platform redesign now used daily by ~4,000 restaurants and 20,000+ end users

  • Unified five digital touchpoints into one cohesive design ecosystem

  • Reduced development time by ~30% through standardized and reusable design components

  • Enabled scalable customization through a flexible white-label system without compromising usability

bol.com

2019

bol.com

2019

bol.com Design Sprint

As one of the largest e-commerce platforms in the Netherlands, bol.com works with a wide network of third-party partners to fulfil orders. To explore how delivery reliability could be improved and quickly validate potential directions, bol.com organised a one-week Design Sprint focused on partner needs and logistics.

Impact

  • Tested and refined a clear solution direction with real bol.com partners during a one-week Design Sprint

  • Identified key levers to reduce late deliveries among top partners

  • Improved clarity and predictability of delivery promises, validated with participating partners

  • Contributed to ideation, user research and rapid prototyping to validate the concept under tight time constraints

bol.com Design Sprint

As one of the largest e-commerce platforms in the Netherlands, bol.com works with a wide network of third-party partners to fulfil orders. To explore how delivery reliability could be improved and quickly validate potential directions, bol.com organised a one-week Design Sprint focused on partner needs and logistics.

Impact

  • Tested and refined a clear solution direction with real bol.com partners during a one-week Design Sprint

  • Identified key levers to reduce late deliveries among top partners

  • Improved clarity and predictability of delivery promises, validated with participating partners

  • Contributed to ideation, user research and rapid prototyping to validate the concept under tight time constraints

bol.com Design Sprint

As one of the largest e-commerce platforms in the Netherlands, bol.com works with a wide network of third-party partners to fulfil orders. To explore how delivery reliability could be improved and quickly validate potential directions, bol.com organised a one-week Design Sprint focused on partner needs and logistics.

Impact

  • Tested and refined a clear solution direction with real bol.com partners during a one-week Design Sprint

  • Identified key levers to reduce late deliveries among top partners

  • Improved clarity and predictability of delivery promises, validated with participating partners

  • Contributed to ideation, user research and rapid prototyping to validate the concept under tight time constraints

Breda

2018

Breda

2018

Citymarketing Breda Website

To attract more visitors who stay longer and spend more, a new city website was designed around five core themes: Food, Culture, Shopping, Sports and Family. The platform offers a magazine-style experience that helps visitors explore activities, events and articles through a clear, themed structure.

Impact

  • Improved findability across 200+ events, attractions and hotspots

  • Enabled faster visitor orientation and decision-making through clear structure and filtering

  • Strengthened alignment between the digital experience and Breda’s tourism objectives

  • A scalable, theme-based concept validated through a Design Sprint

Citymarketing Breda Website

To attract more visitors who stay longer and spend more, a new city website was designed around five core themes: Food, Culture, Shopping, Sports and Family. The platform offers a magazine-style experience that helps visitors explore activities, events and articles through a clear, themed structure.

Impact

  • Improved findability across 200+ events, attractions and hotspots

  • Enabled faster visitor orientation and decision-making through clear structure and filtering

  • Strengthened alignment between the digital experience and Breda’s tourism objectives

  • A scalable, theme-based concept validated through a Design Sprint

Citymarketing Breda Website

To attract more visitors who stay longer and spend more, a new city website was designed around five core themes: Food, Culture, Shopping, Sports and Family. The platform offers a magazine-style experience that helps visitors explore activities, events and articles through a clear, themed structure.

Impact

  • Improved findability across 200+ events, attractions and hotspots

  • Enabled faster visitor orientation and decision-making through clear structure and filtering

  • Strengthened alignment between the digital experience and Breda’s tourism objectives

  • A scalable, theme-based concept validated through a Design Sprint

Sligro

2017 - 2018

Sligro

2017 - 2018

De Kweker E-commerce Website

To create a more seamless and welcoming online experience for food professionals, De Kweker — a major food wholesaler in Amsterdam and part of Sligro — redesigned its digital platform. The new experience supports both first-time visitors and returning power users through fast navigation, flexible ordering and a refined brand expression.

Impact

  • A 100%+ increase in new customer sign-ups through an improved onboarding and shopping experience

  • Improved navigation and search, helping to find relevant products faster

  • Improved self-service and repeat ordering for power users

  • Design later adopted for the Sligro website after De Kweker’s acquisition by Sligro

De Kweker E-commerce Website

To create a more seamless and welcoming online experience for food professionals, De Kweker — a major food wholesaler in Amsterdam and part of Sligro — redesigned its digital platform. The new experience supports both first-time visitors and returning power users through fast navigation, flexible ordering and a refined brand expression.

Impact

  • A 100%+ increase in new customer sign-ups through an improved onboarding and shopping experience

  • Improved navigation and search, helping to find relevant products faster

  • Improved self-service and repeat ordering for power users

  • Design later adopted for the Sligro website after De Kweker’s acquisition by Sligro

De Kweker E-commerce Website

To create a more seamless and welcoming online experience for food professionals, De Kweker — a major food wholesaler in Amsterdam and part of Sligro — redesigned its digital platform. The new experience supports both first-time visitors and returning power users through fast navigation, flexible ordering and a refined brand expression.

Impact

  • A 100%+ increase in new customer sign-ups through an improved onboarding and shopping experience

  • Improved navigation and search, helping to find relevant products faster

  • Improved self-service and repeat ordering for power users

  • Design later adopted for the Sligro website after De Kweker’s acquisition by Sligro

Tempo-Team

2017

Tempo-Team

2017

Tempo-Team Job Seeking Website

To make it easier for users to find and apply for jobs, the Tempo-Team website was redesigned with a clearer and more intuitive job search experience. Improved search, filtering and vacancy pages help users quickly identify relevant roles, while a simplified application flow supports users throughout the process.

Impact

  • Increased engagement and conversion, with A/B testing demonstrating higher CTR to vacancy details and completed applications

  • Supports ~20,000 job postings per year, enabling scalable job discovery and applications

  • Established a reusable design foundation, with the design system still actively in use since 2017

  • Improved job discovery and application flows through structured vacancy pages and clearer employer information


Tempo-Team Job Seeking Website

To make it easier for users to find and apply for jobs, the Tempo-Team website was redesigned with a clearer and more intuitive job search experience. Improved search, filtering and vacancy pages help users quickly identify relevant roles, while a simplified application flow supports users throughout the process.

Impact

  • Increased engagement and conversion, with A/B testing demonstrating higher CTR to vacancy details and completed applications

  • Supports ~20,000 job postings per year, enabling scalable job discovery and applications

  • Established a reusable design foundation, with the design system still actively in use since 2017

  • Improved job discovery and application flows through structured vacancy pages and clearer employer information


Tempo-Team Job Seeking Website

To make it easier for users to find and apply for jobs, the Tempo-Team website was redesigned with a clearer and more intuitive job search experience. Improved search, filtering and vacancy pages help users quickly identify relevant roles, while a simplified application flow supports users throughout the process.

Impact

  • Increased engagement and conversion, with A/B testing demonstrating higher CTR to vacancy details and completed applications

  • Supports ~20,000 job postings per year, enabling scalable job discovery and applications

  • Established a reusable design foundation, with the design system still actively in use since 2017

  • Improved job discovery and application flows through structured vacancy pages and clearer employer information


Louwman

2015 - 2016

Louwman

2015 - 2016

Auto.nl

Making buying a car transparent, fun and easy — fully online. The auto.nl website was designed around quick orientation and confident decision-making, enabling fast discovery and clear comparison of cars, with strong emphasis on photography and colour options on the detail page.

Impact

  • Pioneered the first successful fully online car sales platform in the Netherlands

  • Sold 4,000 cars fully online within the first five years after launch

  • Achieved a customer rating of 9.3 / 10, based on 1,211 reviews

  • Set up a design foundation powering the platform since 2017

  • Established a lean startup model with scrum, now operating as a profitable innovation lab

Auto.nl

Making buying a car transparent, fun and easy — fully online. The auto.nl website was designed around quick orientation and confident decision-making, enabling fast discovery and clear comparison of cars, with strong emphasis on photography and colour options on the detail page.

Impact

  • Pioneered the first successful fully online car sales platform in the Netherlands

  • Sold 4,000 cars fully online within the first five years after launch

  • Achieved a customer rating of 9.3 / 10, based on 1,211 reviews

  • Set up a design foundation powering the platform since 2017

  • Established a lean startup model with scrum, now operating as a profitable innovation lab

Auto.nl

Making buying a car transparent, fun and easy — fully online. The auto.nl website was designed around quick orientation and confident decision-making, enabling fast discovery and clear comparison of cars, with strong emphasis on photography and colour options on the detail page.

Impact

  • Pioneered the first successful fully online car sales platform in the Netherlands

  • Sold 4,000 cars fully online within the first five years after launch

  • Achieved a customer rating of 9.3 / 10, based on 1,211 reviews

  • Set up a design foundation powering the platform since 2017

  • Established a lean startup model with scrum, now operating as a profitable innovation lab

Van Dale

2015

Van Dale

2015

Van Dale Online

As the largest dictionary publisher in the Netherlands, Van Dale modernised its digital platform with a clearer, more scalable interface. Navigation and search were optimised to support efficient lookup across user groups, and the design was rolled out across products such as Van Dale op School to create a consistent and recognisable dictionary experience.

Impact

  • Delivered a production-ready application in under 20 days

  • Established a UX foundation still actively in use for over 10 years

  • Enabled a single UX model supporting three core Van Dale product lines

  • Adopted as dictionary software by many licensed Dutch schools

Van Dale Online

As the largest dictionary publisher in the Netherlands, Van Dale modernised its digital platform with a clearer, more scalable interface. Navigation and search were optimised to support efficient lookup across user groups, and the design was rolled out across products such as Van Dale op School to create a consistent and recognisable dictionary experience.

Impact

  • Delivered a production-ready application in under 20 days

  • Established a UX foundation still actively in use for over 10 years

  • Enabled a single UX model supporting three core Van Dale product lines

  • Adopted as dictionary software by many licensed Dutch schools

Van Dale Online

As the largest dictionary publisher in the Netherlands, Van Dale modernised its digital platform with a clearer, more scalable interface. Navigation and search were optimised to support efficient lookup across user groups, and the design was rolled out across products such as Van Dale op School to create a consistent and recognisable dictionary experience.

Impact

  • Delivered a production-ready application in under 20 days

  • Established a UX foundation still actively in use for over 10 years

  • Enabled a single UX model supporting three core Van Dale product lines

  • Adopted as dictionary software by many licensed Dutch schools

2014

Strakzat

2014

Strakzat

2014

Strakzat

2014

Co-founded Strakzat

Graduated on Friday, founded on Monday.​

Co-founded Strakzat

Graduated on Friday, founded on Monday.​

Co-founded Strakzat

Graduated on Friday, founded on Monday.​