Full Stack Developer (m/f/d)

Reposted 8 Days Ago
Be an Early Applicant
Mainz, Rheinland-Pfalz, DEU
In-Office
Mid level
Software
The Role
Develop and improve scalable web applications, focusing on backend and frontend components using Java, Spring, Angular or React. Ensure code quality and contribute to CI/CD pipelines while working in agile teams.
Summary Generated by Built In

Aareon is Europe’s established provider of SaaS solutions for the real estate industry and a pioneer of the sector’s digital future.
With its software solutions, Aareon connects people, processes, and properties—bringing the industry closer together. With the Aareon Property Management System, based on intelligent software solutions, the company enables the efficient management and maintenance of residential and commercial properties and creates digital experiences for all stakeholders.
As a reliable and innovative partner, Aareon is committed to progress, positive change, and sustainable living and working spaces for everyone.

We value a working environment in which diversity and flexibility are appreciated, cooperation in partnership and mutual support in the team are a matter of course and learning is perceived as an opportunity.

Become part of our international team! Become part of #OneAareon! We are looking forward to meeting YOU!

Responsibilities

  • Development and continuous improvement of scalable web applications across the entire software lifecycle

  • Design, implementation, testing, deployment, and operation of backend and frontend components

  • Implementation of modern backend solutions using Java and Spring / Spring Boot

  • Development of high-performance frontends with Angular or React

  • Design and integration of RESTful APIs as well as integration of external systems

  • Ensuring high code quality through Clean Code principles, SOLID principles, and clean software architecture

  • Conducting code reviews and contributing to automated testing

  • Building and further developing CI/CD pipelines

  • Active contribution to product development by challenging requirements and proposing own solution ideas

  • Use and evaluation of AI-supported development approaches (e.g. AI-driven development, LLM integrations)

  • Collaboration in agile teams and active participation in technical decision-making

Profile

  • At least 3 years of hands-on experience in developing software systems across the entire lifecycle

  • Completed degree in Computer Science, Business Informatics, or a comparable qualification

  • Very good knowledge of Java and solid experience with Spring / Spring Boot

  • Practical experience in frontend development with Angular or React

  • Good understanding of modern web architectures (REST, state management, API integration)

  • Experience with CI/CD, automated testing, and structured code reviews

  • High quality standards regarding code, architecture, and maintainability

  • Initial practical experience with LLM integrations (e.g. API connections) is a plus

  • Basic understanding of agentic AI is an advantage

  • Structured, self-reliant working style and strong problem-solving skills

  • Experience with agile methodologies and pragmatic implementation in daily development work

  • Very good German and good English skills

What We Offer

  • 30 days of vacation plus days off on December 24 and 31
  • Work-life balance through flexible and mobile working options
  • Future-oriented position in the growing IT solutions market with a stable foundation
  • Opportunities for personal development through individual training and further education
  • JobRad bike leasing for work and leisure

Note for commercial recruitment agencies: Aareon does not accept unsolicited applications or placement offers from recruitment agencies, headhunters, or consulting agencies. Unsolicited are all placement offers that have not been agreed in advance by a placement contract. This also applies to the transmission of anonymized profiles. Aareon accepts no liability for unsolicited profiles and is not obliged to take any action, respond, reply, or pay any fees. Thank you for your understanding.

Skills Required

  • At least 3 years of hands-on experience in developing software systems
  • Completed degree in Computer Science or Business Informatics
  • Very good knowledge of Java
  • Experience with Spring and Spring Boot
  • Experience in frontend development with Angular or React
  • Experience with CI/CD and automated testing
  • Good understanding of modern web architectures
  • Very good German and good English skills
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The Company
Drenthe
1,339 Employees

What We Do

Sustainable spaces for all We are Europe's trusted provider of SaaS solutions for the property industry, inspiring our customers and driving positive change. Our mission Our mission is more than our work; it's our passion: connecting people, process and property, bringing the ecosystem closer together. We make digitalization a reality, helping our customers manage and sustain their properties effectively while providing superior digital experiences for everyone involved. Our commitment Embracing the industry's responsibility, we are dedicated to a more sustainable future. Our commitment encompasses environmental, economic, and social dimensions, empowered by technology that promotes affordable housing and energy efficiency for a brighter tomorrow. Eager to embark this adventure? Let’s connect

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