Senior React Frontend Developer - Dream House Raffle (f/m/d)

Welcome to the Dream House Raffle team. We are Germany's first raffle where players have the chance to win a real property. Every dream home is guaranteed to be raffled off, regardless of the number of participants. And by the way, we support selected charitable organizations in Germany with every ticket sold. We are looking for you to promote our corporate start-up from the Zeal Network SE with exciting stories, emotional winner highlights and, of course, absolute dream homes.  

ZEAL Network SE is an international, listed group of companies that has been creating exciting and entertaining lottery experiences for over 20 years. In Germany, we are the largest provider of online lotteries through our brands, LOTTO24 and Tipp24. In Spain we work with the second largest national lottery, ONCE. Through ZEAL Ventures, we are involved in exciting e-commerce start-ups such as Omaze and DAYMADE. We have 250+ employees from various countries who act independently and think in a visionary way. Our corporate culture is characterized by team spirit, empowerment, and high ambition. Together we have a clear goal: to encourage people to dream. 

We are looking for a Senior React Developer (f/m/d) to join our team developing traumhausverlosung.de, an innovative charity lottery product. As part of our small development team, you'll contribute to customer-facing features and help optimize our conversion funnels.

• Develop and maintain our customer-facing webshop using React and Next.js 
• Work closely with product-, design-, marketing- and tech-colleagues in a very lean and agile manner (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   

• A passion for web development with an up-to-date tech stack using React 
• Experience working with Next.js (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  

• State-of-the-art technologies and an agile environment (Check out our Tech Radar here: https://lotto24.github.io/tech-radar/)
• Work in a competent, interdisciplinary team, where you can actively contribute your knowledge and ideas
• No micromanagement, but a lot of trust into your ability to deliver and perform
• Lots of potential to grow your technical skillset with strong peers
• A yearly development budget of EUR 1,500,- for your personal development
• Independent and innovative way of working and a believe real flexible work. You can take your unlimited vacation days spontaneously; we work in a hybrid model and provide you with technical home office equipment.
• Once a quarter a company event where we all get together and celebrate, as well as regular team events and small get-togethers
• Challenging tasks and lots of fun!

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

We are looking forward to hearing from you!