Christian Heynert Product Design

UX/UI Design Lead

OneLog AG, Zürich

OneLog is the joint login service of the Swiss Digital Alliance, uniting Switzerland’s largest media companies and publishers, giving users seamless access to digital media services. OneLog is also the parent company of OneID, the Swiss initiative for responsible advertising IDs, and OneDSP, a programmatic booking platform for the Swiss advertising market.

Focused on designing and evolving the company's web-based applications and digital presence, ensuring an intuitive and scalable user experience. Part of my role involved theming/branding the platform for various clients, creating flexible and adaptable design solutions that maintain consistency while meeting unique client requirements.

I led the re-design and development of new corporate and product websites, using Webflow to build responsive, high-performance sites. I also created and maintained design systems, ensuring consistency across all products and streamlining workflows for efficiency.

Created presentation slide templates and visuals for marketing, stakeholder meetings and training purposes, utilising the latest generative AI tools, to elevate and speed up internal and external communications.

Collaboration was central to my role – I worked closely with Product, Development, and Marketing teams, ensuring alignment between user needs and business goals. I ran the usual agile ceremonies like sprint retrospectives, review and planning sessions, overseeing task planning and assignment for developers to ensure seamless execution.

Key Achievements:

• Reduced brand theme creation time by over 80%, boosting onboarding efficiency.
• Implemented Figma-based design systems and component libraries, replacing Sketch, to streamline both internal workflows and client collaboration.
• Enabled successful product launches by delivering complete design foundations: branding, corporate identity, websites, and marketing materials.

Product Designer

ImmoScout24 Schweiz, Zürich

ImmoScout24 is Switzerland’s leading real estate platform for buying and renting.

User research and UX/UI design for new features in the member area (B2B) of the online platform. Developed and presented solution concepts using wireframes and interactive prototypes.

Worked in close collaboration with both stakeholders and developers, ensuring user-centric implementation of new features, to deliver valuable solutions that can be monetised to help meet business goals. Defined stories, processes and workflows, led workshops and design sprints to turn ideas into feasible delivery stages within an agile development process.

Digital Product Designer
UI Designer

TVSquared, Edinburgh

TVSquared offered a powerful SaaS analytics platform that enabled advertisers to track and improve the effectiveness of their TV and OTT campaigns.

I led the end-to-end design process for the whole SaaS application, from research through to delivery. I designed user flows, wireframes, and interactive prototypes to explore and validate concepts. I built and maintained a modular design system with guidelines to keep the product consistent and easy to scale.

I worked closely with engineers to ensure smooth implementation, and handled design/development trade-offs along the way. I also wrote microcopy such as navigation labels, error messages, and tooltips. Throughout the project, I presented my work and explained design decisions to stakeholders.

Managed and provided strategic direction to a team of digital designers. Led research and project management, and updated brand guidelines, ensuring consistent implementation in collaboration with the Marketing team.

Key Achievements:

• Developed and maintained a bespoke Design System, including visual style-guides and pattern libraries, for use by both Design and Development teams.
• Designed and implemented new Onboarding UI, enabling clients to onboard themselves and reducing time required by Customer Service from up to 4 days to 0.
• Revamped product white-label process and minimised time required from two days to two hours by implementing best practices and improvement strategies.

Visual Designer & UX/UI Consultant

Freelancing for various clients

Mobile apps / GIS / Expense Management / Branding / Corporate Design

• Designed and developed responsive web and mobile solutions.
• Created personas, user journeys, and UX flows to guide design decisions.
• Produced videos, animations, and marketing assets aligned with brand strategy.
• Applied usability standards and accessibility best practices across all deliverables.
• Provided photography services for campaigns, events, and websites.

Lead Designer
Senior UI/Graphic Designer
Graphic Designer

Sumerian, Edinburgh

Sumerian built tools that enabled enterprises to optimise IT capacity, prevent incidents, and deliver large-scale infrastructure transformations.

Held full responsibility for managing the entire product and brand design process. Developed UX and UI paradigms to facilitate the launch of web-based IT Capacity Planning SaaS products. Led the product design process within an agile environment, effectively collaborating with Product Management and Development teams. Mentored, managed, and empowered the in-house design team.

Key Achievements:

• Developed a streamlined pattern library shared by designers and developers.
• Redesigned and relaunched the company’s CI, including collateral for print and digital.
• Designed and developed new company website and marketing landing pages.

UI & Product Designer

Helixion, Edinburgh

Helixion developed and distributed a cross-platform mobile payment solution, well before Apple Pay and similar services.

Led the mobile app development process for both Android and iOS, delivering strategic plans, conceptual designs, thorough use-case analyses, and the final UX and UI designs. I ensured that the product vision aligned with market demands through a lean start-up approach, including MVP development and rapid iterations. Additionally, I developed the brand and corporate identity, created a corporate design style guide, and built a new company website using a custom-made WordPress theme.

Web & Graphics Designer, Front-end Developer

Designpark, Berlin

Designed and developed websites and online shops, as well as a diverse range of print products, for a broad spectrum of B2C and B2B clients. I also played a key role in designing and developing the company’s proprietary content management system. Additionally, I mentored over 10 junior designers and front-end developers throughout my tenure.