(Senior) Full Stack Next.js Developer (f/m/d)

ZEAL Network SE

Job Overview

Location

Hamburg

Job Type

Full-time

Full Job Description

📋 Description

• Shape and build a modern Next.js application from scratch, creating the technical foundation for a scalable internal platform
• Take ownership of frontend topics and drive technical decisions
• Work closely with product, design and backend teams in a lean, agile environment
• Integrate and evolve RESTful APIs in collaboration with backend engineers
• Ensure high-quality implementation of UI/UX designs with a strong focus on performance and scalability
• Write and maintain tests to ensure reliability, security and performance
• Contribute to deployment, monitoring and overall application stability together with DevOps
• Identify and drive improvements in performance, user experience and conversion
• Measure, analyze and iterate on product features based on data

🎯 Requirements

• Strong experience as a Senior Full Stack or Frontend Engineer with a focus on modern web technologies
• Deep expertise in JavaScript, React and Next.js (App Router, Server Components, Server Functions)
• Proficiency in TypeScript, HTML5 and CSS3
• Hands-on experience with tools such as Tailwind CSS, React Hook Form, TanStack Query, Zod, Shadcn/UI or similar (Tailwind CSS is a must have, everything else nice to have)

🏖️ Benefits

• State-of-the-art technologies and an agile environment
• A modern, dynamic culture grounded in the success of a leading-edge e-commerce company
• Ongoing personal growth, supported by an annual development budget of €1,500 to invest in your professional development
• 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

Skills & Technologies

JavaScript

TypeScript

React

Next.js

GitHub

Full Stack

Senior

Hybrid

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ZEAL Network SE

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About ZEAL Network SE

ZEAL Network SE is a German publicly-listed lottery brokerage and gaming services company founded in 1999. It operates web and mobile platforms that allow customers to place bets on state-licensed lotteries such as Lotto 6aus49, Eurojackpot and Keno, and provides related data, marketing and technology services to lottery operators. With headquarters in Hamburg and a workforce of about 200, the company is licensed and regulated in Germany and focuses on expanding secure, responsible online lottery participation across Europe.

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