.NET Engineer (Elasticsearch, Azure Event Hub, Apache Kafka)

We are looking for an experienced Senior .NET C# Backend Engineer with strong expertise in Elasticsearch to join a data-driven project in the financial services sector. Our client partners with banks to help them analyze and improve their operational risk profile through advanced data processing and AI-powered solutions.

• 5+ years of commercial experience with .NET / C#.
• Strong hands-on experience with Elasticsearch.
• Experience building event-driven or streaming data processing applications.
• Practical knowledge of Apache Kafka and/or Azure Event Hub.
• Experience designing data mapping and transformation processes.
• Understanding of backend architecture and integration patterns.
• Strong problem-solving skills and attention to code quality.
• Good command of English (spoken and written).

Nice to have:

• Experience with cloud-based solutions, preferably Microsoft Azure.
• Experience working on data engineering or analytics platforms.
• Knowledge of operational risk or financial services projects.

• Design and implement high-performance .NET services responsible for indexing data into Elasticsearch.
• Develop a service that consumes events from Azure Event Hub.
• Develop a service that processes events from Apache Kafka.
• Transform incoming data into a shared canonical data model.
• Enrich Kafka-based events with additional metadata before indexing.
• Ensure efficient, reliable, and scalable data processing.
• Follow existing implementation patterns based on similar ingestion processes.
• Collaborate with the development team to deliver clean, maintainable, and high-quality code.

Candidates are expected to provide at least 3 hours of overlap with UK business hours (09:00–17:00 UK time).