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April 12, 2026

Regular .NET Developer

Mid • Hybrid

115 - 120 PLN

Warsaw, Poland


We’re looking for a Mid .NET Developer to join a small, 3-person team (Tech Lead + 2 Mid Devs) working on a key part of the product: a search and price comparison engine. The goal is a major rebuild focused on improving search relevance, performance, and scalability. New services are being built in Azure (modern stack), and the solution also leverages OpenAI extensions.

Responsibilities

  • Develop backend services in .NET/C# for the search and price comparison platform

  • Rebuild and optimise search mechanisms (indexing, ranking, filtering, performance)

  • Work with NoSQL data stores (e.g., Cosmos DB / MongoDB) and model data for search use cases

  • Implement asynchronous, event-driven integrations between services (queues / event bus)

  • Collaborate closely with the Tech Lead and the other developer: technical planning, code reviews, delivering increments

  • Maintain high quality standards: testing, clean code, monitoring and logging in a cloud environment

Must-have requirements

  • Commercial experience as a Mid .NET Developer (C#, .NET)

  • Hands-on experience with a search engine: Azure Cognitive Search preferred, Elasticsearch accepted

  • Experience with a non-relational database: Cosmos DB preferred, MongoDB accepted

  • Familiarity with messaging/event-driven solutions: Azure Event Bus / Service Bus preferred, Kafka (or similar) accepted

  • Strong quality mindset (testing, debugging, performance) and good teamwork skills

Nice to have

  • Experience with search relevance/ranking, offer/price comparison, or performance optimisation

  • Exposure to OpenAI-based solutions (integrations, enrichment, search assistance)

  • Azure-native experience (observability, security, CI/CD practices)