About the Position

Senior Fullstack Developer (m/w/d)

Fullstack engineering for complex, distributed systems

Location

Düsseldorf (hybrid)

Employment type

Full-time or part-time

Experience

At least 5 years

About the Company

We are not just a software development company – we are innovation partners for both the business and scientific worlds. With us, you’ll work on customized solutions that help shape the future. If you are passionate about programming, curious about new technologies, and want to make an impact with your ideas, then you’ve come to the right place!

Responsibilities

End-to-end development: Develop modern web applications across the entire stack (Vue 3, JavaScript/TypeScript, Java).
Frontend & UX: Build high-performance, responsive UIs and work closely with design and product teams.
Architecture & APIs: Design scalable architectures and integrate REST/OpenAPI interfaces.
Technical responsibility: Make architectural decisions, conduct code reviews, and ensure quality & performance.
Teamwork: Work closely with backend, DevOps, and product teams and implement requirements in a structured way.

Requirements

Several years of experience in full-stack development (Vue 3, JavaScript/TypeScript, Java).
Confident in working with Spring / Spring Boot, Quarkus, or Hibernate.
Experience with REST APIs, API design, and integration.
Good knowledge of SQL and relational databases.
Understanding of software architecture, clean code, and testing.
Experience with Git, Maven/Gradle, and CI/CD pipelines.
Excellent German and English skills.
Highly motivated and have a strong interest in independently familiarizing yourself with new technological topics.

Nice to Have

Experience with containers such as Docker.
Knowledge of Azure, AWS, or GCP.
Experience with C++ or Python.
Experience with machine learning workflows.
Familiarity with performance optimization (lazy loading, code splitting, caching).

We Offer

Flexible working: Flexitime and hybrid working - from home or from our office in Düsseldorf.
Modern technology: Varied projects that solve real operational problems.
Small teams, big impact: A young, open team with short decision paths and clear points of contact.
Onboarding & development: A personal start and continuous professional development.
Fair compensation: Transparent salaries, health benefits, a dog-friendly office, 50% subsidized public transport ticket.

Application Process

Application documents: We carefully review your application as soon as it arrives and will usually get back to you within a week.
Getting to know each other: We carefully review your application and will usually get back to you within a week.
Second interview: You'll get to know your team, current projects, and how we work - optionally including a small development task.
Final Feedback: If it's a good fit for both sides, we'll discuss the contract offer and your start date.
Onboarding: Individual yet structured - including your first projects.

Get in Contact with Us

Describe your project or question - we’ll tell you honestly whether we’re the right team.

Does this sound like your dream job?

Then apply today and become part of our team. We look forward to getting to know you.

Senior Fullstack Developer (m/w/d)

Job description