Senior Full Stack Developer - (f/m/d)
Senior Full Stack Developer - (f/m/d)
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Job Description
ZEAL Network SE is a leading international provider of online lottery products operating for over 20 years with brands like LOTTO24 and Tipp24. As Germanys largest digital lottery operator and a trusted partner of Spains ONCE we are passionate about shaping the future of lottery experiences.
Traumhausverlosung is one of ZEALs newest and most exciting brands. It gives players the chance to win stunning fully furnished dream homes through an accessible thrilling lottery format while supporting a good cause. Every ticket sold not only offers participants the opportunity to transform their lives but also contributes to charitable projects making a real difference in communities across Germany. By combining the excitement of winning with a meaningful social impact Traumhausverlosung reflects ZEALs commitment to innovation social responsibility and offering customers more than just a game but a chance to do good while dreaming big.
We are looking for a Senior Full Stack Developer to join our small development team contributing to customer-facing features and helping to optimize our conversion funnels.
Your tasks:
Develop and maintain our webshop using
Work closely with product design marketing and tech teams in a very lean and agile environment (startup mentality)
Integrate RESTful APIs in coordination with Backend Developers
Ensure technical implementation of UI/UX designs meets quality standards
Write and maintain tests for functionality security and performance
Support deployment automation alongside our DevOps team
Contribute to performance optimization and conversion rate improvements
Participate in measuring and iterating on product features
What you offer us:
A passion for web development with an up-to-date tech stack using React
Strong JavaScript fundamentals and React expertise
Experience working with (App Router Server Functions Server Components) TypeScript and HTML5/CSS3
Hands-on experience with modern frontend tools around React such as Tailwind CSS React Hook Form TanStack Query Zod shadcn and Lucide
Experience implementing responsive mobile-first designs
You build it you run it mindset and experience in deploying monitoring and maintaining a web application
Strong in writing performant code and clean architectures
Experience integrating and working with REST APIs
Understanding of web performance optimization techniques
Ability to translate business requirements into technical solutions
Strong communication skills for effective team collaboration
Proactive approach to knowledge sharing and peer support
What we offer:
State-of-the-art technologies and an agile environment (Check our Tech Radar: 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 1500 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!
Required Experience:
Senior IC
Employment Type
Full-Time
