Senior .NET Backend Engineer

We’re looking for a Senior .NET Backend Engineer to join a small team and help build a new product from an early stage. The product is focused on improving warehouse efficiency and space utilization . You’ll work on backend architecture, complex business logic, data processing, algorithms, optimization tasks, and event-driven backend services. The first goal is to build and validate a working MVP / Proof of Concept , so we’re looking for someone who is comfortable working with ambiguity, making technical decisions, and building things from scratch. Start: ASAP What you’ll do Build backend services using C# / .NET Design and implement APIs and database workflows Work with Kafka and event-driven architecture Work with complex business logic and large amounts of data Solve algorithmic and optimization-related tasks Participate in architecture and technical decisions Help build the product from scratch Work independently and take ownership of technical solutions Use AI coding tools and agentic engineering approaches to speed up development What we’re looking for Strong commercial experience with C# / .NET Strong backend development skills Hands-on experience with Apache Kafka Good understanding of event-driven architecture and asynchronous processing Strong understanding of backend architecture and system design Hands-on experience with SQL Experience building and working with REST APIs Good understanding of algorithms and data structures Strong analytical and problem-solving skills Ability to work independently and make technical decisions Nice to have Experience with Azure or other cloud platforms Experience with optimization, algorithms, or data-heavy systems Experience building MVPs / Proofs of Concept Experience launching products from scratch Experience with logistics, warehouse, inventory, or supply chain systems Experience with AI-assisted development / AI coding tools Tech stack C# · .NET · ASP.NET Core · Apache Kafka · SQL · REST APIs Why this role Technically challenging product with real-world optimization problems Significant influence on architecture and technical decisions Small team with high ownership Opportunity to build a product from the very beginning Minimal bureaucracy and direct impact on the product Opportunity to actively use modern AI-assisted engineering approaches If you enjoy solving complex backend problems, working with distributed systems, algorithms, and data, and building products from zero - we’d be happy to talk.