Job
- Level
- Junior
- Location
- Dusseldorf
- Working Model
- Onsite
- Job Field
- Web, Full Stack
- Employment Type
- Full Time
- Contract Type
- Permanent employment
Job Summary
In this role, you will develop innovative features for our vacation rental platform, design backend services, APIs, and frontend components, while optimizing the software architecture using modern technologies and AI tools.
Job Technologies
Your role in the team
- Exciting projects: You will work on the technical redesign of our holiday apartment platform and further develop existing applications with modern technologies.
- Fullstack Development: From backend services and APIs to user-friendly frontend components, you develop new features and actively shape our system landscape.
- Rethink software: You analyze existing structures, question technical solutions, and collaboratively develop a modern, maintainable, and scalable architecture.
- Use AI effectively: You utilize modern AI tools and coding agents to make development processes more efficient, while keeping an eye on code quality and technical decisions.
- Ensure quality: You ensure stable and maintainable applications in the long term through automated tests, code reviews, and clean code.
- Getting better together: You work closely with other developers and the product management team, contribute your own ideas, and continuously improve our processes.
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Our expectations of you
Education
- Training: Excellent completion of training as an IT specialist (m/f/d) or a very good degree in the relevant field.
Qualifications
- Technical understanding: knowledge in API development, experience with relational databases and SQL, and interest in modern software architecture.
- AI as a tool: You use AI tools like Claude Code or Cursor confidently: You control them purposefully and critically evaluate the results. LLM and MCP are not unfamiliar terms to you. You can explain and take responsibility for generated code.
- Advantage - AI applications in production: You have experience with agentic applications in production, such as RAG, LLM-as-a-Judge, or validation layers. You are familiar with the specific requirements for quality and stability that differ significantly from AI-assisted development.
- Working Style & Mindset: You question existing solutions, enjoy immersing yourself in complex systems, and work independently, solution-oriented, and quality-conscious. You enjoy new technologies and continuous learning.
- Language skills: Negotiation-level German and good English skills.
Experience
- Fullstack experience: Initial practical experience in web development, ideally with modern frontend technologies such as React as well as a backend language like Python, PHP, Go, or Java.
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What we offer
- We appreciate your commitment: You can expect an attractive salary package, vouchers for CHECK24 products, and a subsidized company pension scheme.
- Personal Development: We support your personal growth through targeted training, regular feedback, and an individual budget for your further education.
- Top Ausstattung: Ab dem ersten Tag erhältst Du ein MacBook, zusätzliche Bildschirme und einen ergonomischen Arbeitsplatz - auf Wunsch mit weiterem Equipment.
- Feel-good atmosphere: Look forward to free lunch, drinks, fruit, muesli, and monthly team lunches. Stay fit with our 50% subsidy for EGYM Wellpass as well as weekly personal training.
- Getting to us is easy: Our office is centrally located near the Rhine in Cologne, directly on Heinrich-Heine-Allee. Thanks to the takeover of your Germany ticket or subsidized Job-Rad/eBike, you can commute to the office in an environmentally friendly and affordable way.
- Team spirit: Celebrate and network at numerous events, summer and Christmas parties, as well as sporting activities - we support team events with a dedicated annual budget.
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Benefits
Work-Life-Integration
Health, Fitness & Fun
Food & Drink
Higher Take-Home Pay
Topics You Will Work On
Job Locations
About Your Employer
CHECK24 Gruppe
CHECK24 is one of Germany's leading online companies and the country's largest comparison portal. And we're growing - with you. If you want to move something, you've come to the right place. Experience the dynamics of e-commerce, agile processes, flat hierarchies and steep development curves.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Banking, Finance, Insurance, Internet, IT, Telecommunication
Employer reviews
by devworkplaces.com
Total
(3 Reviews)4.1
Engineering
3.8Workingconditions
4.2Career Growth
4.3Culture
4.2
Junior Full Stack Developer
- Location
- Dusseldorf
- Working Model
- Onsite
- Diversity
- Open for all genders
