I'm Charles, a product designer based in Hamburg, Germany, focusing on user-centered, evidence-based design that drives organizational value.

I'm Charles, a product designer based in Hamburg, Germany, focusing on user-centered, evidence-based design that drives organizational value.

I'm Charles, a product designer based in Hamburg, Germany, focusing on user-centered, evidence-based design that drives organizational value.
I tackle complex problems in multi-stakeholder ecosystems, balancing the needs of various stakeholders to create effective, impactful solutions.

I tackle complex problems in multi-stakeholder ecosystems, balancing the needs of various stakeholders to create effective, impactful solutions.

I tackle complex problems in multi-stakeholder ecosystems, balancing the needs of various stakeholders to create effective, impactful solutions.

  • Delivered bespoke UX solutions across platforms (Mobile, Desktop and Web)

  • 30+

    Project finished

  • Proven track record in fast-paced environments, and ability to navigate complex workflows

  • 5+

    Years of Experience

  • Industry Experience

    B2B Products, SaaS Products, Consumer-facing apps, cross-functional teams

Featured Projects

Featured Projects

Featured Projects

Transforming ad campaigns for airlines

User Research, Interaction Design, UI Design, User Testing, QA

July 2024

Created a comprehensive ad management tool enabling airlines to seamlessly manage, optimize, and scale their ad campaigns for better engagement and ROI.

View project

Transforming ad campaigns for airlines

User Research, Interaction Design, UI Design, User Testing, QA

July 2024

Created a comprehensive ad management tool enabling airlines to seamlessly manage, optimize, and scale their ad campaigns for better engagement and ROI.

Transforming ad campaigns for airlines

User Research, Interaction Design, UI Design, User Testing, QA

July 2024

Created a comprehensive ad management tool enabling airlines to seamlessly manage, optimize, and scale their ad campaigns for better engagement and ROI.

View project

Empowering financial wellness

User Research, Concept Dev, Brand Identity, UI Design

May 2024

Developed an intuitive finance app that helps users track and manage their financial health while supporting their long-term well-being goals.

View project

Empowering financial wellness

User Research, Concept Dev, Brand Identity, UI Design

May 2024

Developed an intuitive finance app that helps users track and manage their financial health while supporting their long-term well-being goals.

Empowering financial wellness

User Research, Concept Dev, Brand Identity, UI Design

May 2024

Developed an intuitive finance app that helps users track and manage their financial health while supporting their long-term well-being goals.

View project

Completed projects — stories coming soon

Completed projects — stories coming soon

Case studies are in progress to share the insights, challenges, and design decisions that brought each solution to life

Case studies are in progress to share the insights, challenges, and design decisions that brought each solution to life

Case studies are in progress to share the insights, challenges, and design decisions that brought each solution to life

Comprehensive survey analysis for airlines

User Research, Interaction Design, UI Design, User Testing, QA

May 2024

Designed an analytics dashboard for airlines to simplify survey data analysis, offering a clear view of passenger feedback and enabling quicker, data-driven improvements.

Comprehensive survey analysis for airlines

User Research, Interaction Design, UI Design, User Testing, QA

May 2024

Designed an analytics dashboard for airlines to simplify survey data analysis, offering a clear view of passenger feedback and enabling quicker, data-driven improvements.

Comprehensive survey analysis for airlines

User Research, Interaction Design, UI Design, User Testing, QA

May 2024

Designed an analytics dashboard for airlines to simplify survey data analysis, offering a clear view of passenger feedback and enabling quicker, data-driven improvements.

Empower self-discovery and personal growth

Website Design, SEO, Web Analytics, Brand Identity

July 2024

Designed a professional and inviting website for a holistic life coach specializing in self-determination and therapeutic guidance.

Empower self-discovery and personal growth

Website Design, SEO, Web Analytics, Brand Identity

July 2024

Designed a professional and inviting website for a holistic life coach specializing in self-determination and therapeutic guidance.

Empower self-discovery and personal growth

Website Design, SEO, Web Analytics, Brand Identity

July 2024

Designed a professional and inviting website for a holistic life coach specializing in self-determination and therapeutic guidance.

Balancing wellness, work, and life for users

Benchmarking, Concept Dev, Brand Identity, UI Design

November 2024

Developed a tool that helps users navigate the balance between health, work, and personal life, empowering them to make better wellness decisions.

Balancing wellness, work, and life for users

Benchmarking, Concept Dev, Brand Identity, UI Design

November 2024

Developed a tool that helps users navigate the balance between health, work, and personal life, empowering them to make better wellness decisions.

Balancing wellness, work, and life for users

Benchmarking, Concept Dev, Brand Identity, UI Design

November 2024

Developed a tool that helps users navigate the balance between health, work, and personal life, empowering them to make better wellness decisions.

Simplified soundtrack discovery for creators

Conceptualization, Wireframing, UI Design, Visual Design

November 2024

A tailored user experience for the Loudly Soundtrack platform, enabling filmmakers and creators to efficiently browse, organize, and download audio tracks.

Simplified soundtrack discovery for creators

Conceptualization, Wireframing, UI Design, Visual Design

November 2024

A tailored user experience for the Loudly Soundtrack platform, enabling filmmakers and creators to efficiently browse, organize, and download audio tracks.

Simplified soundtrack discovery for creators

Conceptualization, Wireframing, UI Design, Visual Design

November 2024

A tailored user experience for the Loudly Soundtrack platform, enabling filmmakers and creators to efficiently browse, organize, and download audio tracks.

Redefining usability for an IIoT platform

SaaS Platform Redesign

March 2023

Streamlined AssetMinder's complex interface into an intuitive, visually engaging platform, improving user efficiency and responsiveness to critical events.

Redefining usability for an IIoT platform

SaaS Platform Redesign

March 2023

Streamlined AssetMinder's complex interface into an intuitive, visually engaging platform, improving user efficiency and responsiveness to critical events.

Redefining usability for an IIoT platform

SaaS Platform Redesign

March 2023

Streamlined AssetMinder's complex interface into an intuitive, visually engaging platform, improving user efficiency and responsiveness to critical events.

Enhancing goal management

Web App UX Redesign

September 2022

Redesigned a key module for RocketRoutine’s web app, creating a user-friendly interface for streamlined goal-setting, progress tracking, and strategic alignment.

Enhancing goal management

Web App UX Redesign

September 2022

Redesigned a key module for RocketRoutine’s web app, creating a user-friendly interface for streamlined goal-setting, progress tracking, and strategic alignment.

Enhancing goal management

Web App UX Redesign

September 2022

Redesigned a key module for RocketRoutine’s web app, creating a user-friendly interface for streamlined goal-setting, progress tracking, and strategic alignment.

Kind words from amazing people

Kind words from amazing people

Kind words from amazing people

"Charles consistently stood out for his dedication, sharp analytical skills, and creative problem-solving. His commitment to collaboration fostered an inclusive work environment, and he consistently delivered high-quality results under tight deadlines. His positive attitude and reliability made even stressful projects enjoyable. Charles is a true asset and a pleasure to work with."

Talita Meier, Advanced UI/UX Designer

"Charles is a dedicated, curious, and ambitious designer. During our four months working together, he showed adaptability, hard work, and skill. His proactive attitude and effective use of feedback stood out. Charles cares deeply about his work and stays focused on his goals. I am confident he will go far."

Teresa Mira, Senior Product Designer

“Charles significantly improved both the desktop and mobile versions of my website, creating a unique and personalized design that reflects my personality and business content. He exceeded my expectations by incorporating my wishes with expert UX principles and accessibility considerations. The result is a stunning website that has received numerous compliments.”

Simone Martin - Psychological counselor & life coach for self-determination

"Charles consistently stood out for his dedication, sharp analytical skills, and creative problem-solving. His commitment to collaboration fostered an inclusive work environment, and he consistently delivered high-quality results under tight deadlines. His positive attitude and reliability made even stressful projects enjoyable. Charles is a true asset and a pleasure to work with."

Talita Meier, Advanced UI/UX Designer

"Collaboration with Charles uplifted data analysis to the different level. His systematic approach made data understandable for different audiences. Moreover, by incorporating different buttons and visualization for filtering, the dashboards became a one of the coolest product in our platform."

Hanna Kim, Data Analyst

"Collaboration with Charles uplifted data analysis to the different level. His systematic approach made data understandable for different audiences. Moreover, by incorporating different buttons and visualization for filtering, the dashboards became a one of the coolest product in our platform."

Hanna Kim, Data Analyst

"Charles is a dedicated, curious, and ambitious designer. During our four months working together, he showed adaptability, hard work, and skill. His proactive attitude and effective use of feedback stood out. Charles cares deeply about his work and stays focused on his goals. I am confident he will go far."

Teresa Mira, Senior Product Designer

"Charles is a dedicated, curious, and ambitious designer. During our four months working together, he showed adaptability, hard work, and skill. His proactive attitude and effective use of feedback stood out. Charles cares deeply about his work and stays focused on his goals. I am confident he will go far."

Teresa Mira, Senior Product Designer

“Charles significantly improved both the desktop and mobile versions of my website, creating a unique and personalized design that reflects my personality and business content. He exceeded my expectations by incorporating my wishes with expert UX principles and accessibility considerations. The result is a stunning website that has received numerous compliments.”

Simone Martin - Psychological counselor & life coach for self-determination

“Charles significantly improved both the desktop and mobile versions of my website, creating a unique and personalized design that reflects my personality and business content. He exceeded my expectations by incorporating my wishes with expert UX principles and accessibility considerations. The result is a stunning website that has received numerous compliments.”

Simone Martin - Psychological counselor & life coach for self-determination

2024 Charles Jaja

2024 Charles Jaja