Backend Developer Payment Solutions

Together with our customers, we define next generation citizen experience and renewable energy billing systems to strengthen social cohesion and sustainable use of resources. We are a mixed team with lots of experience in billing, payment and customer relationship management.

Tasks

We help our customers in finding an defining system solutions for rewarding voluntary actiivities and for selling digital services.

Some components of our systems are provided by partners and customers, while some components are new and may have to be adapted to specific project requirements. We will choose multi-tenant microservice or customer-specific cloud instance approaches for our components depending on the standardization level of our customers. Customers shall be able to use their own identity management solutions.

In addition to backends, corporate partners will need portals with API-based automation capabilities. For customers, productive solutions will integrate into existing apps via APIs. However, experience with demo app development preferrably multi-OS e.g. using Flutter is welcome.

Requirements

Needed:

• some experience in backend projects and APIs, e.g. with Java or Kotlin

Nice to have:

• experience with demo app development preferrably multi-OS e.g. using Flutter
• experience with verification and test automation
• Versatility in management systems for agile development such as Jira/Confluence based approaches and in multiparty projects.

Work may be partly remote, but presence in the respective project team and at customer sites may be required at times.

Since the first customers of our new systems will be in Germany, willingness to learn German will be a requirement. Courses can be provided.

You are welcome to submit your resume in English. If you already speak both languages, German is preferred.

We hope that we can make a difference together to foster a lighter footprint and more quality of life for many - and having fun with technology!