Senior Backend Engineer - Developer Platform (.NET)

Location: Mobile working

Company

hirify.global develops e-commerce software for online retail, including ERP systems, shops, and marketplace integrations, serving more than 50,000 customers with around 450 employees across the group.

What you will do

• Develop API solutions with FastEndpoints and contribute to the company-wide GraphQL API.
• Define backend development standards, guidelines, and best practices across engineering teams.
• Create and maintain templates, boilerplates, and libraries for internal product teams.
• Build cloud platform components, including self-service deployments, Azure and Terraform infrastructure, and the central API gateway.
• Design robust and scalable software architectures using .NET 8, CQRS, and Domain-Driven Design.
• Support teams in adopting standards, bootstrap new backend projects, and evaluate technologies such as SignalR.

Requirements

• Several years of backend development experience with modern .NET technologies, especially .NET 8.
• Strong knowledge of software architecture, CQRS, Domain-Driven Design, modern development patterns, and libraries.
• Experience designing GraphQL APIs and working with event-driven architectures and messaging systems.
• Hands-on experience with NoSQL databases, especially Azure Cosmos DB, plus reliable testing with xUnit and Shouldly.
• Confident use of Docker, containerization, Git, pull requests, code reviews, Azure, and Terraform.
• Fluent English and German communication skills at least at B2 level are required. Strong communication skills and an interest in AI-driven product development are also required.

Nice to have

• Experience with SignalR, GitHub Actions, Kubernetes, Helm, Infrastructure as Code, GitOps, or Argo.

Culture & Benefits

• Mobile working and flexible working hours.
• Workation opportunities.
• Meal allowance and financial subsidies.
• Ergonomic workplace support.
• Company events and fitness and sports benefits.