Storage24

Senior Full-Stack Developer (m/w/d)

DE Munich, Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

Your missionBuild the next digital generation of Storage24Storage24 is the European leader in XXL self-storage and flexible space solutions. After rapid expansion, we are now building a data-driven, scalable digital platform.We're looking for a Senior Full Stack Developer who thrives with high autonomy, takes ownership without being told twice, and delivers real impact — someone who's built things in a vibrant, fast-moving, ideally startup environment and knows how to figure things out when the path isn't fully mapped out yet.You'll work closely with Product and business leadership and take end-to-end ownership of key platform initiatives. You will:- Build and extend platform features & internal tools- Design and optimize data pipelines & integrations- Operate scalable services on Google Cloud- Maintain CI/CD pipelines & deployment environments- Ensure quality through testing and code reviewsThis is not a ticket role. It's architecture, ownership, and shipped value — you'll often get direction on the what, not the how, and we expect you to run with that.

Your profileTechnical Expertise- 3+ years of experience as a Full Stack Developer (or equivalent hands-on depth — we value real coding experience over titles)- Strong experience with modern TypeScript & React- Confident working with SQL and data modeling- Experience building and operating services in Google Cloud- Familiar with Infrastructure-as-Code and CI/CD workflows- Comfortable designing APIs, integrations, and scalable architectures- Fluent in English (German or French is a plus)Nice to have: HubSpot, n8n, BigQuery, Docker, Tailwind, ETL/data engineering, event-driven systems.Mindset- You've worked in a dynamic, fast-paced environment — startup experience strongly preferred — and know what it's like when priorities shift daily and nobody hands you a spec- You take senior-level ownership end-to-end, and you don't wait around for instructions to get started- You're comfortable making decisions with incomplete information and taking initiative without being asked- You think in products and outcomes, not just features- You choose pragmatic solutions over over-engineering- You stay curious and leverage modern tools (including AI) to improve quality and speed

This is who we are- Real ownership and direct influence on architectural decisions- Direct impact on customer success and operational efficiency- Opportunity to work with motivated stakeholders across the business- Modern stack without legacy baggage- Short decision-making paths, high autonomy and collaborative culture- Hybrid setup: Munich office + 2 remote days- Competitive compensation and attractive benefits (pension plan, bike leasing, corporate benefits, and more)
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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT CRM CSS Javascript MySQL Remote Collaboration Mid level

Likely questions

  1. Tell us about work you have done that is close to the Senior Full-Stack Developer (m/w/d) role.
  2. How would you approach your first 30 days at Storage24?
  3. Which of CRM, CSS and Javascript have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with CRM, CSS and Javascript.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Full-Stack Developer (m/w/d) role because I can bring practical experience in CRM, CSS and Javascript, learn the team quickly, and contribute to the outcomes Storage24 needs from this hire.

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