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

What you can expect

For our client and portfolio company Storage24, we are looking for a

Build the next digital generation of Storage24

Storage24 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 reviews

This 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.#### What we expect from you

Technical 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

What we offer you

• 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)

About us

PeopleX – Your Partner for People \& Culture

We help small and medium\-sized businesses attract, develop and retain the right people — professionally and culturally — to build a successful and sustainable future.

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