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Mainz, Rheinland-Pfalz, Deutschland
Onsite
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
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.
