Çağlar Şaşmaz

UX/UI Group Manager

About

Summary

Strategic UX/UI Design Leader with over 14 years of experience shaping digital product experiences across web, mobile, and multi-seller marketplace platforms. Expert in AI-driven DesignOps, Lean UX, and design thinking, driving scalable design solutions that merge user needs with business goals. Built high-performing teams and improved UX practices across teams.

Successfully led the UX vision for industry-leading retailers such as LC Waikiki, Boyner, Koton, and Joker—from ground-up digital transformations to complex Super App initiatives. Strong track record in conversion-focused design, leveraging

A/B testing, Maze, Google Analytics, and Clarity to uncover insights and boost performance.

Linkedin

↗

kcsasmaz@gmail.com

↗

Experience

E-commerce UX/UI Group Manager (Promoted)

lcwaikiki.com

Feb 2024 – Present

Istanbul

  • Led the UX/UI team in the Marketplace Super App transformation, coordinating end-to-end design efforts across web, mobile, and B2B platforms.
  • Oversaw Pre-Checkout, Checkout, Post-Checkout, and Mobile App experience strategies and UX/UI design processes.
  • Collaborated closely with business analysts, PMs, and developers to align user experience with product vision.
  • Conducted user research, usability testing, and applied AI-enhanced tools (e.g. Maze) to validate design decisions.
  • Monitored product performance through Google Analytics, Clarity, and other tools to drive growth-oriented UX.
  • Maintained design system consistency and accessibility compliance across domestic and international platforms.
  • Directed UX Writing strategies and ensured brand-aligned tone across all digital touchpoints.
  • Performed competitor benchmarking and identified new opportunities for optimization and feature innovation.

E-commerce UX/UI Manager

lcwaikiki.com

Feb 2021 – Feb 2024

Istanbul

  • Collaborated with cross-functional teams under Digital Product Management to lead UX/UI strategy across the LC Waikiki Marketplace.
  • Managed end-to-end UX/UI processes including personas, journey mapping, wireframes, prototypes, and high-fidelity UI designs.
  • Directed UX flows and responsive designs for web, mobile (iOS & Android), and desktop platforms.
  • Led UX/UI initiatives for Marketplace Seller Portal (B2B) and contributed to the design system for internal and external tools.
  • Ran A/B test scenarios focused on user flow, personalization, and usability improvements to boost product performance.
  • Conducted competitor analysis (e.g., Baymard) to identify UX best practices and improvement opportunities.
  • Ensured compliance with WCAG accessibility and usability standards to support inclusive design.
  • Created interactive prototypes and gathered user insights through usability testing.
  • Monitored performance metrics across multiple platforms using tools like Google Analytics and Clarity, supporting data-informed design decisions.

UX/UI Manager (Promoted)

koton.com

Sep 2020 - Agu 2021

Istanbul

  • Led a cross-functional UX team including UI designers, researchers, and user testing specialists across web, app, and B2B platforms.
  • Designed and delivered user-tested flows for the Koton mobile app, driving improved usability and engagement.
  • Managed omni-channel UX initiatives, including Click & Collect, Returns, and Checkout flows, aligning with benchmark insights and business needs.
  • Conducted A/B testing, moderated user tests, and funnel analysis to improve UX and optimize conversion rates.
  • Developed UX strategies for both D2C and B2B platforms, supporting business growth through data-informed design.
  • Monitored KPIs tied to online sales, driving UX improvements and personalized user experiences.
  • Led transactional and segmented mailing flows, improving user engagement and retention.
  • Ensured user-centered design approach by integrating customer feedback, usability findings, and market research.

UX/UI Team Lead

koton.com

Jul 2017 - Sep 2020

Istanbul

  • Led UX/UI team across all design phases: wireframes, mockups, visual design, prototyping, and usability testing.
  • Managed user research, Lean UX processes, and collaborated with IT, marketing, and category teams to align design with business goals.
  • Oversaw HTML/CSS integration and component management within the SAP Hybris e-commerce platform

Senior UX/UI Design Executive

boyner.com.tr

Jun 2014 - Jul 2017

Istanbul

  • Led the complete redesign of Boyner.com.tr, ensuring UX alignment through analytics and user behavior insights.
  • Coordinated mobile app UI design with an external agency, focusing on wireframes and interface consistency.
  • Designed daily banners, emails, landing pages, and interactive visuals (GIF, JPG) for marketing campaigns.

Senior UX/UI Design Executive

joker.com.tr

Sep 2012 - Jun 2014

Istanbul

  • Designed the full e-commerce website of Joker from scratch, creating a modern and corporate digital identity.
  • Delivered marketing assets including banners, landing pages, promotional emails, and packaging design.
  • Ensured brand consistency across digital and physical touchpoints for a wide children's product catalog.

Web& Graphic Design Executive

evidea.com

Jun 2012 - Jul 2012

Istanbul

  • Designed responsive banners, landing pages, and email campaigns for e-commerce promotions.
  • Created campaign microsites and visual assets for press ads and social media.
  • Collaborated with the social media team to deliver engaging visual content across channels.

Web & Graphic Designer

hizlial.com

Mar 2010 - Dec 2011

Istanbul

  • Designed web banners, landing pages, and campaign microsites for the e-commerce platform.
  • Created advertising materials for billboards, megalights, bus exteriors, and press ads.
  • Delivered cohesive visual designs across both digital and outdoor marketing channels.

Web & Graphic Designer

Gold Computer& Technology A.S

Agu 2009 - Mar 2010

Istanbul

  • Designed posters, billboards, and digital assets for Gold Computer and its sub-brands (Ng, Bross, Bien, Touch, Nova).
  • Created Flash banners, email campaigns, and UX design elements for Suntec.com.tr and related platforms.
  • Contributed to branding efforts, including logo design and visual identity development across multiple brands.

Skills

AI-Driven & Data-Informed Design

 

  • AI-enhanced UX Strategy
  • Predictive Personalization
  • Behavioral Analytics Integration
  • Data-informed Design Decisions

UX Strategy & Leadership

 

  • UX/UI Team Leadership
  • UX Strategy & DesignOps
  • Design Thinking
  • Agile & Lean UX
  • Cross-functional Collaboration
  • Product Strategy & Backlog Management

E-commerce & Product Experience

 

  • E-commerce Platforms (B2C & B2B)
  • Marketplace UX (Web & Mobile)
  • Checkout Funnel Optimization
  • Component-based Design Systems
  • Dev Collaboration (Figma DevMode, Zeplin)

User Research & Optimization

 

  • UX Research & Usability Testing
  • A/B Testing & Experiment Design
  • Persona & Journey Mapping
  • Google Analytics, Hotjar, Clarity, Maze
  • Conversion Rate Optimization (CRO)

Education

Marmara University - Master Degree

 

Strategic Brand Management

2019 - 2020

Mugla University - Bachelor Degree

Economics

2005 - 2009

Tools

Figma (Design, DevMode, Tokens), FigJam, Miro, Whimsical AI, ChatGPT, Sketch, Adobe XD, Zeplin, Maze, Clarity, Hotjar, Google Analytics, AB Tasty, VWO, InVision Studio, Proto.io, Marvel, Balsamiq, Adobe Photoshop, Adobe Illustrator etc.

Certifications:

SLII - Situational Leadershipment

Nov 2021 - The Key Blanchard Companies

Mentor Hatted Leadership

March 2024 - LCW Academy

Coaching Leadership Program

February 2024 - LCW Academy

12 Steps Kaizen

October 2021 - LCW Academy

...

Google Analytics Certification

August 2014- BooAcademy

User Experience Design Training

January 2016 - Userspots

Web & Mobile Optimization Training

March 2016 - Userspots

Contact me

Top ↑

Çağlar Şaşmaz

UX/UI Group Manager

About

Summary

Strategic UX/UI Design Leader with over 14 years of experience shaping digital product experiences across web, mobile, and multi-seller marketplace platforms. Expert in AI-driven DesignOps, Lean UX, and design thinking, driving scalable design solutions that merge user needs with business goals. Built high-performing teams and improved UX practices across teams.

Successfully led the UX vision for industry-leading retailers such as LC Waikiki, Boyner, Koton, and Joker—from ground-up digital transformations to complex Super App initiatives. Strong track record in conversion-focused design, leveraging

A/B testing, Maze, Google Analytics, and Clarity to uncover insights and boost performance.

Linkedin

↗

kcsasmaz@gmail.com

↗

Experience

E-commerce UX/UI Group Manager (Promoted)

lcwaikiki.com

Feb 2024 – Present

Istanbul

  • Led the UX/UI team in the Marketplace Super App transformation, coordinating end-to-end design efforts across web, mobile, and B2B platforms.
  • Oversaw Pre-Checkout, Checkout, Post-Checkout, and Mobile App experience strategies and UX/UI design processes.
  • Collaborated closely with business analysts, PMs, and developers to align user experience with product vision.
  • Conducted user research, usability testing, and applied AI-enhanced tools (e.g. Maze) to validate design decisions.
  • Monitored product performance through Google Analytics, Clarity, and other tools to drive growth-oriented UX.
  • Maintained design system consistency and accessibility compliance across domestic and international platforms.
  • Directed UX Writing strategies and ensured brand-aligned tone across all digital touchpoints.
  • Performed competitor benchmarking and identified new opportunities for optimization and feature innovation.

E-commerce UX/UI Manager

lcwaikiki.com

Feb 2021 – Feb 2024

Istanbul

  • Collaborated with cross-functional teams under Digital Product Management to lead UX/UI strategy across the LC Waikiki Marketplace.
  • Managed end-to-end UX/UI processes including personas, journey mapping, wireframes, prototypes, and high-fidelity UI designs.
  • Directed UX flows and responsive designs for web, mobile (iOS & Android), and desktop platforms.
  • Led UX/UI initiatives for Marketplace Seller Portal (B2B) and contributed to the design system for internal and external tools.
  • Ran A/B test scenarios focused on user flow, personalization, and usability improvements to boost product performance.
  • Conducted competitor analysis (e.g., Baymard) to identify UX best practices and improvement opportunities.
  • Ensured compliance with WCAG accessibility and usability standards to support inclusive design.
  • Created interactive prototypes and gathered user insights through usability testing.
  • Monitored performance metrics across multiple platforms using tools like Google Analytics and Clarity, supporting data-informed design decisions.

UX/UI Manager (Promoted)

koton.com

Sep 2020 - Agu 2021

Istanbul

  • Led a cross-functional UX team including UI designers, researchers, and user testing specialists across web, app, and B2B platforms.
  • Designed and delivered user-tested flows for the Koton mobile app, driving improved usability and engagement.
  • Managed omni-channel UX initiatives, including Click & Collect, Returns, and Checkout flows, aligning with benchmark insights and business needs.
  • Conducted A/B testing, moderated user tests, and funnel analysis to improve UX and optimize conversion rates.
  • Developed UX strategies for both D2C and B2B platforms, supporting business growth through data-informed design.
  • Monitored KPIs tied to online sales, driving UX improvements and personalized user experiences.
  • Led transactional and segmented mailing flows, improving user engagement and retention.
  • Ensured user-centered design approach by integrating customer feedback, usability findings, and market research.

UX/UI Team Lead

koton.com

Jul 2017 - Sep 2020

Istanbul

  • Led UX/UI team across all design phases: wireframes, mockups, visual design, prototyping, and usability testing.
  • Managed user research, Lean UX processes, and collaborated with IT, marketing, and category teams to align design with business goals.
  • Oversaw HTML/CSS integration and component management within the SAP Hybris e-commerce platform

Senior UX/UI Design Executive

boyner.com.tr

Jun 2014 - Jul 2017

Istanbul

  • Led the complete redesign of Boyner.com.tr, ensuring UX alignment through analytics and user behavior insights.
  • Coordinated mobile app UI design with an external agency, focusing on wireframes and interface consistency.
  • Designed daily banners, emails, landing pages, and interactive visuals (GIF, JPG) for marketing campaigns.

Senior UX/UI Design Executive

joker.com.tr

Sep 2012 - Jun 2014

Istanbul

  • Designed the full e-commerce website of Joker from scratch, creating a modern and corporate digital identity.
  • Delivered marketing assets including banners, landing pages, promotional emails, and packaging design.
  • Ensured brand consistency across digital and physical touchpoints for a wide children's product catalog.

Web& Graphic Design Executive

evidea.com

Jun 2012 - Jul 2012

Istanbul

  • Designed responsive banners, landing pages, and email campaigns for e-commerce promotions.
  • Created campaign microsites and visual assets for press ads and social media.
  • Collaborated with the social media team to deliver engaging visual content across channels.

Web & Graphic Designer

hizlial.com

Mar 2010 - Dec 2011

Istanbul

  • Designed web banners, landing pages, and campaign microsites for the e-commerce platform.
  • Created advertising materials for billboards, megalights, bus exteriors, and press ads.
  • Delivered cohesive visual designs across both digital and outdoor marketing channels.

Web & Graphic Designer

Gold Computer& Technology A.S

Agu 2009 - Mar 2010

Istanbul

  • Designed posters, billboards, and digital assets for Gold Computer and its sub-brands (Ng, Bross, Bien, Touch, Nova).
  • Created Flash banners, email campaigns, and UX design elements for Suntec.com.tr and related platforms.
  • Contributed to branding efforts, including logo design and visual identity development across multiple brands.

Skills

AI-Driven & Data-Informed Design

 

  • AI-enhanced UX Strategy
  • Predictive Personalization
  • Behavioral Analytics Integration
  • Data-informed Design Decisions

UX Strategy & Leadership

 

  • UX/UI Team Leadership
  • UX Strategy & DesignOps
  • Design Thinking
  • Agile & Lean UX
  • Cross-functional Collaboration
  • Product Strategy & Backlog Management

E-commerce & Product Experience

 

  • E-commerce Platforms (B2C & B2B)
  • Marketplace UX (Web & Mobile)
  • Checkout Funnel Optimization
  • Component-based Design Systems
  • Dev Collaboration (Figma DevMode, Zeplin)

User Research & Optimization

 

  • UX Research & Usability Testing
  • A/B Testing & Experiment Design
  • Persona & Journey Mapping
  • Google Analytics, Hotjar, Clarity, Maze
  • Conversion Rate Optimization (CRO)

Education

Marmara University - Master Degree

 

Strategic Brand Management

2019 - 2020

Mugla University - Bachelor Degree

Economics

2005 - 2009

Tools

Figma (Design, DevMode, Tokens), FigJam, Miro, Whimsical AI, ChatGPT, Sketch, Adobe XD, Zeplin, Maze, Clarity, Hotjar, Google Analytics, AB Tasty, VWO, InVision Studio, Proto.io, Marvel, Balsamiq, Adobe Photoshop, Adobe Illustrator etc.

Certifications:

SLII - Situational Leadershipment

Nov 2021 - The Key Blanchard Companies

Mentor Hatted Leadership

March 2024 - LCW Academy

Coaching Leadership Program

February 2024 - LCW Academy

12 Steps Kaizen

October 2021 - LCW Academy

...

Google Analytics Certification

August 2014- BooAcademy

User Experience Design Training

January 2016 - Userspots

Web & Mobile Optimization Training

March 2016 - Userspots

Contact me

Top ↑

Çağlar Şaşmaz

UX/UI Group Manager

About

Summary

Strategic UX/UI Design Leader with over 14 years of experience shaping digital product experiences across web, mobile, and multi-seller marketplace platforms. Expert in AI-driven DesignOps, Lean UX, and design thinking, driving scalable design solutions that merge user needs with business goals. Built high-performing teams and improved UX practices across teams.

Successfully led the UX vision for industry-leading retailers such as LC Waikiki, Boyner, Koton, and Joker—from ground-up digital transformations to complex Super App initiatives. Strong track record in conversion-focused design, leveraging

A/B testing, Maze, Google Analytics, and Clarity to uncover insights and boost performance.

Linkedin

↗

kcsasmaz@gmail.com

↗

Experience

E-commerce UX/UI Group Manager (Promoted)

lcwaikiki.com

Feb 2024 – Present

Istanbul

  • Led the UX/UI team in the Marketplace Super App transformation, coordinating end-to-end design efforts across web, mobile, and B2B platforms.
  • Oversaw Pre-Checkout, Checkout, Post-Checkout, and Mobile App experience strategies and UX/UI design processes.
  • Collaborated closely with business analysts, PMs, and developers to align user experience with product vision.
  • Conducted user research, usability testing, and applied AI-enhanced tools (e.g. Maze) to validate design decisions.
  • Monitored product performance through Google Analytics, Clarity, and other tools to drive growth-oriented UX.
  • Maintained design system consistency and accessibility compliance across domestic and international platforms.
  • Directed UX Writing strategies and ensured brand-aligned tone across all digital touchpoints.
  • Performed competitor benchmarking and identified new opportunities for optimization and feature innovation.

E-commerce UX/UI Manager

lcwaikiki.com

Feb 2021 – Feb 2024

Istanbul

  • Collaborated with cross-functional teams under Digital Product Management to lead UX/UI strategy across the LC Waikiki Marketplace.
  • Managed end-to-end UX/UI processes including personas, journey mapping, wireframes, prototypes, and high-fidelity UI designs.
  • Directed UX flows and responsive designs for web, mobile (iOS & Android), and desktop platforms.
  • Led UX/UI initiatives for Marketplace Seller Portal (B2B) and contributed to the design system for internal and external tools.
  • Ran A/B test scenarios focused on user flow, personalization, and usability improvements to boost product performance.
  • Conducted competitor analysis (e.g., Baymard) to identify UX best practices and improvement opportunities.
  • Ensured compliance with WCAG accessibility and usability standards to support inclusive design.
  • Created interactive prototypes and gathered user insights through usability testing.
  • Monitored performance metrics across multiple platforms using tools like Google Analytics and Clarity, supporting data-informed design decisions.

UX/UI Manager (Promoted)

koton.com

Sep 2020 - Agu 2021

Istanbul

  • Led a cross-functional UX team including UI designers, researchers, and user testing specialists across web, app, and B2B platforms.
  • Designed and delivered user-tested flows for the Koton mobile app, driving improved usability and engagement.
  • Managed omni-channel UX initiatives, including Click & Collect, Returns, and Checkout flows, aligning with benchmark insights and business needs.
  • Conducted A/B testing, moderated user tests, and funnel analysis to improve UX and optimize conversion rates.
  • Developed UX strategies for both D2C and B2B platforms, supporting business growth through data-informed design.
  • Monitored KPIs tied to online sales, driving UX improvements and personalized user experiences.
  • Led transactional and segmented mailing flows, improving user engagement and retention.
  • Ensured user-centered design approach by integrating customer feedback, usability findings, and market research.

UX/UI Team Lead

koton.com

Jul 2017 - Sep 2020

Istanbul

  • Led UX/UI team across all design phases: wireframes, mockups, visual design, prototyping, and usability testing.
  • Managed user research, Lean UX processes, and collaborated with IT, marketing, and category teams to align design with business goals.
  • Oversaw HTML/CSS integration and component management within the SAP Hybris e-commerce platform

Senior UX/UI Design Executive

boyner.com.tr

Jun 2014 - Jul 2017

Istanbul

  • Led the complete redesign of Boyner.com.tr, ensuring UX alignment through analytics and user behavior insights.
  • Coordinated mobile app UI design with an external agency, focusing on wireframes and interface consistency.
  • Designed daily banners, emails, landing pages, and interactive visuals (GIF, JPG) for marketing campaigns.

Senior UX/UI Design Executive

joker.com.tr

Sep 2012 - Jun 2014

Istanbul

  • Designed the full e-commerce website of Joker from scratch, creating a modern and corporate digital identity.
  • Delivered marketing assets including banners, landing pages, promotional emails, and packaging design.
  • Ensured brand consistency across digital and physical touchpoints for a wide children's product catalog.

Web& Graphic Design Executive

evidea.com

Jun 2012 - Jul 2012

Istanbul

  • Designed responsive banners, landing pages, and email campaigns for e-commerce promotions.
  • Created campaign microsites and visual assets for press ads and social media.
  • Collaborated with the social media team to deliver engaging visual content across channels.

Web & Graphic Designer

hizlial.com

Mar 2010 - Dec 2011

Istanbul

  • Designed web banners, landing pages, and campaign microsites for the e-commerce platform.
  • Created advertising materials for billboards, megalights, bus exteriors, and press ads.
  • Delivered cohesive visual designs across both digital and outdoor marketing channels.

Web & Graphic Designer

Gold Computer& Technology A.S

Agu 2009 - Mar 2010

Istanbul

  • Designed posters, billboards, and digital assets for Gold Computer and its sub-brands (Ng, Bross, Bien, Touch, Nova).
  • Created Flash banners, email campaigns, and UX design elements for Suntec.com.tr and related platforms.
  • Contributed to branding efforts, including logo design and visual identity development across multiple brands.

Skills

UX Strategy & Leadership

 

  • UX/UI Team Leadership
  • UX Strategy & DesignOps
  • Design Thinking
  • Agile & Lean UX
  • Cross-functional Collaboration
  • Product Strategy & Backlog Management

AI-Driven & Data-Informed Design

 

  • AI-enhanced UX Strategy
  • Predictive Personalization
  • Behavioral Analytics Integration
  • Data-informed Design Decisions

User Research & Optimization

 

  • UX Research & Usability Testing
  • A/B Testing & Experiment Design
  • Persona & Journey Mapping
  • Google Analytics, Hotjar, Clarity, Maze
  • Conversion Rate Optimization (CRO)

E-commerce & Product Experience

 

  • E-commerce Platforms (B2C & B2B)
  • Marketplace UX (Web & Mobile)
  • Checkout Funnel Optimization
  • Component-based Design Systems
  • Dev Collaboration (Figma DevMode, Zeplin)

Education

Marmara University - Master Degree

 

Strategic Brand Management

2019 - 2020

Mugla University - Bachelor Degree

Economics

2005 - 2009

Certifications:

SLII - Situational Leadershipment

Nov 2021 - The Key Blanchard Companies

Mentor Hatted Leadership

March 2024 - LCW Academy

Coaching Leadership Program

February 2024 - LCW Academy

12 Steps Kaizen

October 2021 - LCW Academy

...

Google Analytics Certification

August 2014- BooAcademy

User Experience Design Training

January 2016 - Userspots

Web & Mobile Optimization Training

March 2016 - Userspots

Tools

Figma (Design, DevMode, Tokens), FigJam, Miro, Whimsical AI, ChatGPT, Sketch, Adobe XD, Zeplin, Maze, Clarity, Hotjar, Google Analytics, AB Tasty, VWO, InVision Studio, Proto.io, Marvel, Balsamiq, Adobe Photoshop, Adobe Illustrator etc.

Contact me

Top ↑