Senior .NET Engineer: Cloud‑Native, Resilient Messaging

Euroclear; Poland; Hybrid; PLN 250,000 - 350,000; Full time

Benefits offered by this job

Competitive salary

Comprehensive benefits

International environment

Job summary

Euroclear is modernising a mission-critical communications layer that routes messages and files between core systems and external partners. As a Senior .NET Developer, you will design, build, and operate resilient, cloud-native services on Azure with containerised workloads.

This hands-on, leadership-oriented role focuses on high reliability in a regulated environment. You will mentor juniors, set engineering standards, and collaborate in an Agile product setup while upholding Euroclear values

Qualifications

• 10+ years of professional software engineering, including building mission-critical or high-throughput distributed systems.
• Expert .NET engineer (C#, .NET, async/await, DI, testing frameworks).
• Strong delivery focus and accountability in regulated environments.
• Experience with TDD, automation, and CI/CD pipelines.

Responsibilities

• Design & deliver modern integration services to replace/upgrade the communications layer.
• Design for resilience and scale using patterns like circuit breaker, retries, timeouts, idempotency, DLQs, bulkheads, sagas.
• Build event-driven systems with Azure messaging or Kafka-style pub/sub; define contracts and versioning.
• Develop high-quality .NET services with security and performance focus; apply TDD as default.

Skills

10+ years

5+ years mission-critical

.NET/C#

TDD

CI/CD

Azure

Kafka/OpenShift

Kubernetes

OpenTelemetry

Security/Performance

Tools

Azure Service Bus

Azure Event Hubs

Kafka

OpenShift

AKS

Helm

GitLab/GitHub Actions

Job description

Euroclear is modernising a mission-critical communications layer that routes messages and files between core systems and external partners. As a Senior .NET Developer, you will design, build, and operate resilient, cloud-native services on Azure with containerised workloads.

This hands-on, leadership-oriented role focuses on high reliability in a regulated environment. You will mentor juniors, set engineering standards, and collaborate in an Agile product setup while upholding Euroclear values