Senior Booking Plattform Developer (m/w/d)

For us, it‘s all about hotels.
We support our customers in finding and organising conference hotels.

Senior Booking Plattform Developer (m/w/d)
We are looking for an experienced developer (full-stack or backend-focused) to support the continued development of
a modern, cloud-based booking and event platform for the hospitality industry. The solution offers intelligent search,
booking, and management features for MICE customer inquiries (Meetings, Incentives, Conferences, Events), along
with customizable reporting and invoicing functionalities.

What you should bring:

• Strong experience with Node.js (TypeScript), React & GraphQL
• Proficiency with relational databases (MySQL)
• Familiarity with AWS (especially RDS, Fargate, S3, CI/CD) is a plus
• Solid communication skills (English or German)
• Experience working with complex system architectures and API integrations
• A structured and self-driven working style

Your responsibilities:

• You maintain and further develop the existing platform
• You develop and optimize APIs (GraphQL)
• You manage database structures and backend logic using Prisma & MySQL
• You collaborate with the frontend team to implement new features
• You optionally contribute to DevOps processes (CI/CD on AWS)
• You contribute to technical documentation and knowledge sharing

Job details:
• Start: Immediately
• Duration: long-term-collaboration (+2 years)
• Freelance or employment possible
• 100 % remote – with regular team syncs (e.g., via Slack & Jira)

Fill out the form now and apply – we look forward to receiving your application!

    Do you have experience in tourism – the hotel industry?

    Telephone or email? Which do you prefer?

    Do you prefer reading a book or meeting up with friends?

    What has been your greatest success so far?

    Your name (Mandatory field)

    Your email address (Mandatory field)

    Your Curriculum Vitae (*.pdf) (Mandatory field)


    Your letter of motivation (*.pdf)


    Your certificates (*.pdf)


    Your message


    By providing your contact information, you agree that seminargo.com may send you further information.

    Your advantages…

    • Interesting and varied work
    • Working in a young and motivated team
    • Secure job in an expanding company
    • Comprehensive trainings & further education opportunities
    • Symposion Hotels Card (free hotel stays)

    What are you waiting for?

    Send us your detailed application/CV with a description of your previous projects. Salery above the collective agreement with a maximum of €42,000 gross p.a.. We reward relevant professional experience and qualifications.


    We look forward to hearing from you!
    Sandra Weindorfer, HR
    sandra.weindorfer@seminargo.com