Java Software Developer (F/M/D)

Rubean AG is a multinational fintech company based in Munich, Germany, and the leading provider of pure software point-of-sale solutions for banks, acquirers, and merchants. With our solution, regular smartphones become secure and fast payment acceptance terminal (POS devices) without any additional hardware.

About the role:

• Full Time
• From today (01/25)
• Permanent contract

Why is this role interesting for you?

Rubean AG is at the forefront of the digital transformation, which everyone is talking about these days. Since the pandemic, payments have transitioned more and more away from regular cash to card payments or online transactions. The Rubean platform allows merchants, delivery personnel, and every businessperson to accept card payments on their regular mobile phone in a secure and certified way.

In our international team, you can contribute to innovative, intuitive, and secure services of the Rubean payment SAAS platform that allow backend processing in a scalable and modern way on a state-of-the-art infrastructure in Docker containers, orchestrated by Kubernetes.

At Rubean, you can make an impact and enhance the solution that many customers use to ensure they get paid for their services. At the same time, you can continuously develop your strengths and learn from your specialist colleagues.

Your tasks as a Senior Java Backend Engineer:

• Design, develop, deploy, and maintain multiple services on our Kubernetes / MongoDB and Kafka clusters.
• Own the services from concept to completion and beyond.
• Expand the ever-growing Rubean platform with new concepts and ideas.
• You are familiar with microservice architectures and eventual consistency concepts and want to implement your experience for the use of our customers.

Agile concepts, especially the inspect-and-adopt approach in line with optimization-focused thinking, is part of our team DNA at Rubean.

Your profile:

• Basic understanding of IP networking, load balancing, firewalling, and VPNs.
• You understand container orchestration via Kubernetes and related abstraction layers.
• You can deploy an application with high availability to Kubernetes, covering everything from source code to logging and alerting.
• A highly motivated and proactive personality with a results-driven approach and a strong commitment to 'Getting things done'.
• Expertise in Infrastructure as Code and a demonstrated track record of automating CI/CD infrastructure using tools such as Ansible, Terraform, Docker, Grafana, and Prometheus.
• Language skills: English; fluent German is a plus.

Nice to have:

• Good knowledge of the microprofile microservice standard.
• Knowledge of IAM integrations such as Keycloak.
• Profound knowledge in Message Queues such as Kafka and MongoDB Change streams.
• Profound knowledge in MongoDB (no-sql).
• Profound knowledge in MS-SQL.

What are the benefits of working at Rubean?

• 30 days of holiday.
• Smart colleagues to learn from.
• Flexible working times around key working hours of your team.
• Fair remuneration and a wide range of social benefits.

If you are interested, please send your application to:

Rubean is a leading provider of Software Point of Sale (SoftPOS) terminals for accepting contactless card payments on mobile devices, such as regular mobile phones. Small to large retailers, delivery services, and restaurants have been using the PCI MPoC verified software since 2020 under the PhonePOS brand in Europe and Latin America. PhonePOS is the only SoftPOS solution that supports Germany's most widely used girocard .

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