Senior Frontend Developer (f/m/d)

Department: Technology

Location: Hamburg

Employment Type: FullTime

ZEAL Network SE is a leading international provider of online lottery products, operating for over 20 years with brands like LOTTO24 and Tipp24. As Germany’s largest digital lottery operator and a trusted partner of Spain’s ONCE, we are passionate about shaping the future of lottery experiences.

LOTTO24 is Germany’s leading online provider of state-licensed lottery products, offering customers convenient and secure access to popular games like LOTTO 6aus49, Eurojackpot, and GlücksSpirale. As a trusted partner of the state lotteries, LOTTO24 ensures that every ticket sold helps support charitable, social, and community projects across Germany. By combining ease of play, trusted security, and meaningful social contributions, LOTTO24 exemplifies ZEAL’s vision of making lottery participation more accessible while giving back to society.

Your tasks:

• Implement, maintain and run customer facing web shops

• Work closely with product, design and marketing in an agile manner

• Verify the technical feasibility of UI/UX designs

• Test code for functional, security and performance issues

• Measure and iterate on product and funnel optimisations to increase the rate of success

• Ensure quality through code-reviews, share your expertise in mentoring and pair programming

• Collaborate with backend developers to integrate with RESTful APIs

• Expand your knowledge and keep your tech skills up to date

What you offer us:

• A strong enthusiasm for crafting web applications

• Strong proficiency in working with Angular and TypeScript

• You love to use modern CSS features and component libraries to build responsive web apps in a mobile first way and strive for great visuals and usability

• Experience working with JSON and interfacing with REST APIs

• You are familiar with modern front-end build pipelines and tools

• You love iterating and take pride in owning customer facing features from ideas to running live.

• The ability to translate business requirements into technical requirements

• Understanding of Continuous Delivery practices using tools like Jenkins and Git.

• DevOps is not just a buzzword to you, and you are keen to learn outside of your expertise

• You have strong communication and collaboration skills

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.

• Monthly company events, team activities, and informal gatherings, including our popular company-wide lunches provided four days a week.

Not ticking every box or think you’ve got that unique set of skills we haven’t realized we need? Get in touch anyway, we’re always looking to add great people!