(Senior) Software Engineer (Backend) - B2B Squad

Instaffo GmbH
Berlin, Germany
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English, German
Experience level
Senior

Job location

Berlin, Germany

Tech stack

Agile Methodologies
Azure
Cursor (Graphical User Interface Elements)
MongoDB
Cloud Platform System
Backend
Event Driven Architecture
Kubernetes
Api Management
Docker

Requirements

The language requirements for this position are: English - Fluent, German - Fluent.

We are looking for a Senior Software Engineer to architect and build the backend systems for our innovative B2B electricity products. This is a unique opportunity to shape a largely untapped market and directly impact how businesses manage their energy consumption, turning a fixed cost into a controllable lever. You will be a key player in driving our growth and defining the future of energy management., Must-Have Qualifications:

  • Strong in C# and .NET Core.
  • Solid understanding of MongoDB, Docker, Kubernetes, and cloud environments (GCP/Azure).
  • Comfortable with CI/CD pipelines, TDD, and agile development principles.
  • AI coding tools like Claude or Cursor are part of your natural workflow.
  • Fluent in English.
  • Based in or willing to relocate to Berlin or Hamburg.

Bonus:

  • Experience in the energy sector, with billing/settlement or pricing systems, event-driven architecture, or building B2B/API products.

About the company

You will build the backend systems and APIs behind RABOT's new electricity products for business customers, including dynamic commercial tariffs, transparent price and consumption data, billing and settlement logic, and interfaces for companies to integrate our products into their operations. You will work closely with product and our optimization team to transform raw market and consumption data into desirable products.

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