(Senior) Design System Engineer (f/m/d)
Zeal Network · Hamburg
What this role requires
2 requirements, read out of the advert rather than guessed from the job title:
Also mentioned, not required: Kotlin, Jetpack Compose, Swift, SwiftUI, English (B2). Worth having, but their absence is not what gets a CV filtered out.
See how often each of these is required across open frontend roles in Europe.
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Job description
ZEAL Network SE is a dynamic, international group of companies that has been creating exciting and innovative lottery experiences for over 20 years. As Germany’s largest provider of online lotteries through our brands LOTTO24 and Tipp24, and a trusted partner of Spain’s ONCE, the second-largest national lottery, we’re shaping the future of the lottery industry. We are passionate about driving innovation, as demonstrated by our newest brands, Freiheit+ and Traumhausverlosung, which bring fresh and exciting dreams to life. Additionally, through ZEAL Ventures, we invest in inspiring e-commerce start-ups like Omaze and DAYMADE, fueling fresh ideas and opportunities.
Our team of 350+ professionals from diverse backgrounds is united by a visionary mindset, a passion for collaboration, and a commitment to inspire dreams. At ZEAL, we empower our people to think ambitiously and work together toward a shared purpose: helping people imagine and achieve their aspirations.
Your tasks:
Evolve, expand and maintain our component libraries on all our platforms (iOS, Android and Web): Angular, Jetpack Compose, SwiftUI fed by a shared design system.
Partner closely with our UI/UX designers on component APIs, naming, states, and variants, keeping our code in sync with our Figma library - closing the gap between what is designed and what ships.
Define the system's architecture: theming and brand layering, versioning, releases, and a contribution model that invites our domain teams in rather than shutting them out.
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Maintain living documentation (e.g. Storybook) and drive adoption through pairing, reviews, and migration paths.
Make accessibility and responsive behavior built-in properties of our components, not an afterthought.
Adopt agentic coding practices and use AI coding agents to accelerate development, while maintaining ownership of technical decisions, code quality, and outcomes.
What you offer us:
Several years as a frontend or mobile engineer, including hands-on ownership of a design system or shared component library used by multiple teams.
TypeScript and Angular skills or comparable depth in another modern framework / library and a clear willingness to go all in on Angular plus a sharp instinct for component API design.
Hands-on native UI development with Kotlin/Jetpack Compose or Swift/SwiftUI. You will author native components yourself. Strong expertise in one platform, combined with an interest in developing a working knowledge of the other, is perfectly fine.
Experience with design tokens and theming multi-brand environments: building one system that carries several brands without forking.
A strong grasp of responsive and adaptive design and of accessibility standards, and the habit of verifying both in practice.
A product mindset toward internal tooling, you treat the design system and component libraries as a product with users and measure success by adoption. You enjoy enabling other teams and building consensus across engineering and design.
What we offer:
State-of-the-art technologies and an agile environment (Check our Tech Radar: https://lotto24.github.io/tech-radar/ )
A modern, dynamic culture grounded in the success of a leading-edge e-commerce company.
A talented team of ambitious, like-minded colleagues where your knowledge and ideas truly make an impact.
Ongoing personal growth, supported by an annual development budget of €1,500 to invest in your professional development.
Trust and autonomy, no micromanagement, just confidence in your ability to deliver and excel.
Flexible work options with a hybrid setup focused on results.
Unlimited vacation days in addition to your yearly 30-day vacation allowance.
Opportunity for workations abroad using our WorkFlex tool.
Monthly mobility allowance of €30 to use on the mobility option of your choice (e.g., the Deutschlandticket), plus access to a company bike leasing program.
Company pension scheme, provided in partnership with Degura, to support your future financial security.
Subsidized EGYM WELLPASS membership, with a contribution of only €25 per month, giving you access to a wide range of gyms and sports options across Germany.
Quarterly company events, along with regular team activities and informal gatherings, a favorite being our Healthy Tuesday lunches or Treat Thursdays in the office!
Sounds exciting? Great! We're looking forward to receiving your online application.
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