Senior Backend Engineer (.NET) (f/m/d)

What You’ll Be Up To

Build the Storefront API from Scratch

• Design and implement a production-grade, multi-tenant API / MCP
• Enable seamless integration with external platforms and AI agents
• Ensure scalability, reliability, and high performance from day one

Own the Full API Lifecycle

• Define API schemas and contracts (OpenAPI)
• Implement versioning strategies and backward compatibility
• Design authentication, authorization, and security patterns
• Build rate limiting and usage controls
• Ensure strong documentation and developer experience
• Set up monitoring and observability

Work Across Distributed Systems

• Integrate with existing .NET microservices
• Connect to event-driven systems (Kafka or similar)
• Navigate and improve a complex distributed architecture

Operate in the Cloud

• Deploy and manage services in AWS
• Work with Docker and containerized environments
• Contribute to infrastructure as code practices

Collaborate on AI-Driven Use Cases

• Partner with AI engineers to enable agent-based workflows
• Build APIs that integrate with LLM-powered systems
• Help evolve the platform toward AI-native product capabilities

Shape Engineering Standards

• Define best practices for:
  • API design
  • System architecture
  • Code quality and maintainability
• Contribute to how the ecosystem team scales and operates

What You’ll Bring to the Team

Core Requirements

• Proven experience building and operating production-grade APIs at scale
• Strong expertise in REST API design and architecture
• Solid experience with C# / .NET 8+
• Hands-on experience with AWS, Docker, and infrastructure as code
• Strong understanding of microservices and distributed systems
• Ability to work independently and make architectural decisions
• Interest in AI systems and integrations

Mindset & Traits

• Self-starter — you take ownership and drive work without waiting for direction