Umut Gultekin

Umut Gultekin

Greater Stockholm Metropolitan Area
2K followers 500+ connections

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About

I have over 25 years of work experience in product management, product design, product…

Articles by Umut

  • Overlays vs accessibility - Comforting lies vs uncomfortable truths
    May 16, 2025

    Overlays vs accessibility - Comforting lies vs uncomfortable truths

    There are many things I can say about this. Hell, I can even write a book. But nothing would change the fact that this…

    4 Comments
  • FTC stops AccessiBe's misleading claims
    May 2, 2025

    FTC stops AccessiBe's misleading claims

    FTC Approves Final Order Requiring accessiBe to pay $1 MillionThis final order from FTC (The Federal Trade…

  • Control your Android device with facial expressions and gestures!
    Jun 30, 2024

    Control your Android device with facial expressions and gestures!

    Google's project Game Face for Android goes live and it is open source too!Assistive technologyControl your Android…

    2 Comments
  • Will people need assistive technology in the future?
    May 29, 2024

    Will people need assistive technology in the future?

    Great to knowDifferences between EN 301 549 and WCAGNon-European countries that use EN 301 549 (Canada, Australia…

  • This is Overrefined.
    May 20, 2024

    This is Overrefined.

    Honest, sharp, and succinct accessibility newsletter that is free. This issue covers the previous months. Later issues…

    3 Comments
  • Tradera: Poor UX / CX kills customer loyalty
    Dec 28, 2023

    Tradera: Poor UX / CX kills customer loyalty

    This post is about Tradera.First of all, I'm not a user, but a customer. That's an important distinction. I love…

    3 Comments
  • Accessibility vs WCAG
    Aug 22, 2023

    Accessibility vs WCAG

    The title of this article sounds confusing. I know. In the end, WCAG by W3C is the bible of accessibility. So, is it…

  • The base stations of Turkey
    Jul 31, 2017

    The base stations of Turkey

    Having fun with public data of the base stations across Turkey. See it in its full resolution for the full effect.…

  • Sahibinden.com Received 2015 Stevie Gold Award
    Nov 26, 2015

    Sahibinden.com Received 2015 Stevie Gold Award

    sahibinden.com has received The 2015 Stevie Gold Award for its Android app.  Such a good looking…

    5 Comments
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Contributions

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Activity

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Experience

  • Accessibility Cloud Graphic

    Accessibility Cloud

    Stockholm, Stockholm County, Sweden

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    Stockholm, Stockholm County, Sweden

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    Stockholm, Stockholm County, Sweden

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    Stockholm, Sweden

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    Stockholm, Sweden

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    Stockholm, Sweden

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

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    Istanbul, Turkey

Education

Licenses & Certifications

Projects

  • Sahibinden.com Apple Watch App

    Other creators
    See project

  • Sahibinden.com iOS App v1.7.X

    Add, edit and publish support for listings. Support for sales of "Doping"s.

    See project

  • Sahibinden.com iOS App v1.6.X

    In-housed the project. Introduced a new design, new features, improvements.

    See project

  • Funka WebSight

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    To detect semantic problems in web forms, we developed Funka WebSight, a web testing tool, which recognizes form objects in web forms and searches for them in DOM. Inconsistencies are marked as potential accessibility problems.

    Other creators
    See project

  • Sahibinden.com iOS App v2.0 - v3.2

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    - More than a million of MAUs, hundreds of millions of screen views per month.
    - Featured in App Store's home page, "Shopping at Home"​, "Best of 2014"​, "Trending Apps", "Shopping Favorites" and "Shop for Everything" collections.
    - The only Turkish app in Top 25.

    Other creators
    See project

  • Sahibinden.com Android App v2.0 - v3.1

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    - Millions of MAUs, billions of screen views per month.
    - Top Developer in Google Play.
    - Gold Stevie award winner.
    - 1st in Google's list of 2014 and 2015's best apps for Turkey.
    - The only Turkish app in Top 25.
    - Captured the first position among all applications in Play Store / Turkey and held it for 10 days.
    - Reached to a million users within its first month.
    - Time spent within the app multiplied by 7 compared to the old app.
    - Featured many times on various…

    - Millions of MAUs, billions of screen views per month.
    - Top Developer in Google Play.
    - Gold Stevie award winner.
    - 1st in Google's list of 2014 and 2015's best apps for Turkey.
    - The only Turkish app in Top 25.
    - Captured the first position among all applications in Play Store / Turkey and held it for 10 days.
    - Reached to a million users within its first month.
    - Time spent within the app multiplied by 7 compared to the old app.
    - Featured many times on various collections at Google Play.

    Other creators
    See project

  • Sahibinden.com's ad serving technology strategy

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    Running multiple ad serving technologies at the same time for getting the best out of them in terms of performance, targeting features and monetization options. Including but not limited to OpenX, DFP, Adsense and AdX.

  • OpenX Modernization

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    Extended the capabilities offered by OpenX Ad Server for better targeting and faster ad delivery.

  • Mobile Site Modernization

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    Modernization of the mobile site which was originally designed to run on Symbian devices. Many changes were done to make it easier to use on smartphones including; facelift, viewport optimizations, separation of the UI features depending on the device type (multiple UI features offered for feature-phones and smartphones). As a result, time spent on mobile site increased by more than 120% and pageview count increased by more than 300%.

    See project

  • Sahibinden.com Android App v1.2.X

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    In-housed the project, made it compatible to run on almost all Android devices, resolved many bugs, made improvements for increased customer satisfaction. As a result; sessions count increased tenfold within less than a year.

    See project

  • Ads for International Traffic

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    Created a new revenue stream by offering highly targeted ads for international traffic.

  • Ad Server Redundancy

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    Redundant ad server setup makes Sahibinden.com invulnerable for possible failures on ad server side while ensuring ad delivery to continue without any disruption. In case of a complete systems failure or commercial reasons to stop one of the technologies in use, the ad delivery can quickly be resumed from a different ad serving product/platform.

  • AirTel Friend Locator for iOS

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    AirTel Friend Locator Universal iOS App

    Other creators

Honors & Awards

  • Funkabutiken: Online game for practicing shopping and making payments online

    Zero Project

    The online learning game ‘Funkabutiken’, published by the Swedish NGO Funka in 2021, allows users to practice shopping and paying online. Easy language, illustrations, and videos are some of the accessibility features offered. By mid-2022, Funkabutiken had around 20,000 visits.
    https://zeroproject.org/view/project/c05624aa-39ad-4c04-ac4e-d41bfb082d33

    My involvement with this project was about converting thousands of XD artboards into a navigable website.

  • SAS Hackathon (EMEA region #1)

    SAS

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s…

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s URL.
    https://www.sas.com/en_us/news/press-releases/2022/june/sas-hackathon-winners-decode-real-world-dilemmas-with-data.html

  • SAS Hackathon 2022 (Computer Vision #1)

    SAS

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s…

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s URL.
    https://www.sas.com/en_us/news/press-releases/2022/june/sas-hackathon-winners-decode-real-world-dilemmas-with-data.html

  • SAS Hackathon 2022 (Telecom & Media Category #1)

    SAS

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s…

    To improve the accessibility of web forms for people with and without disabilities, team members from company Funka Nu AB used computer vision, optical character recognition, machine learning, and test automation to create a solution for website owners to evaluate the accessibility of their forms — and apply solutions to any indicated problems — by inputting their site’s URL.
    https://www.sas.com/en_us/news/press-releases/2022/june/sas-hackathon-winners-decode-real-world-dilemmas-with-data.html

  • Altin Orumcek Awards - Won with Sahibinden.com

    Altin Orumcek

    - First prize for “Altin Orumcek Best Shopping App” in 2017 with Sahibinden.com mobile apps
    - Third prize for “Altin Orumcek Most Accessible Mobile App” in 2017 with Sahibinden.com mobile apps
    - Third prize for “Altin Orumcek Best Mobile Website” in 2017 with Sahibinden.com mobile website
    - First prize for "Altin Orumcek Best Classifieds Site" in 2015

  • Altin Orumcek Awards - Won with various of projects

    Altin Orumcek

    7 counts of Golden Spiders (Altın Örümcek) for the projects I personally designed or oversaw the design process between 2002 and 2004 in various categories Best Corporate Identity, Best B2B Site, Best B2C Site, Best Visual Design and Best eCommerce Site.

  • Best Android App of 2014 and 2015

    Google

    First in Google's list of 2015's best apps for Turkey with sahibinden.com Android App https://play.google.com/store/info/topic?id=bestof2015_apps

  • Best iOS App - 2014

    Apple

    Won with Sahibinden.com iOS app.

  • Gold Stevie Award - 2015 and 2016

    Stevie International Business Awards

    The Stevie Awards are the world's premier business awards. They were created to honor and generate public recognition of the achievements and positive contributions of organizations and working professionals worldwide.

    Won with Sahibinden.com mobile apps.

  • Spotlight Mobile Apps, Turkey - 2014, 2015, 2016, and 2017

    Mobile Marketing Association

    Won with Sahibinden.com mobile apps.

  • The Smarties - 2016

    Mobile Marketing Association

    Won with Sahibinden.com mobile apps.

  • Top Developer - 2015

    Google

    Top Developer is a badge recognizing established, respected developers for their commitment to launching high-quality and innovative apps on Android. The Google Play editorial staff awards a Top Developer badge from time-to-time based on the cumulative work of the developer. The badge means long-term recognition of all of the developer’s apps. It signifies an additional level of trust and confidence users have in a developer’s products.

    Won with Sahibinden.com Android app.

  • Webrazzi Awards

    Webrazzi

    First prize for "Webrazzi Best Classifieds Site" in 2013, 2014, 2015, 2016
    First prize for "Webrazzi Best e-Commerce Site" in 2013, 2014, 2015
    First prize for "Webrazzi Best Venture" in 2013, 2014, 2015

  • Young Bull Award - 2017

    White Bull Awards

    Awarded for innovation, leadership, growth and growth potential.

Languages

  • Turkish

    Native or bilingual proficiency

  • English

    Native or bilingual proficiency

  • Swedish

    Elementary proficiency

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