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Offer summary
(Summary generated by AI based on the full job description)
The project involves modernising a communication layer handling messages and files in a regulated environment (finance). Key technologies include .NET, C#, ASP.NET Core, Azure (AKS, Service Bus, Event Hubs), Kubernetes, Helm, and event-driven architecture. Responsibilities cover designing and delivering scalable, resilient services, containerization, enforcing security and observability standards, and leading and mentoring the team. The offer includes a competitive salary and benefits package.
from: 5 June 2026
to: 5 July 2026
salary not specifiedcontract of employment (full-time)
Offer parameters
level:expert
working mode:hybrid
Kraków, Podgórze Duchackie
Requirements
Expected technologies
.NET
C#
ASP.NET
Azure DevOps
Docker
Kubernetes
Helm
Optional technologies
Kafka
Splunk
Our requirements
- 10+ years of professional software engineering, including 5+ years building mission‑critical or high‑throughput distributed systems (preferably in financial services or similarly regulated domains).
- Expert .NET engineer (C#, .NET, async/await, DI, testing frameworks).
- Azure hands‑on experience: AKS, Functions, Service Bus/Event Hubs, Storage, Key Vault, Application Insights, Azure DevOps (Pipelines/Repos).
- Containers & orchestration: Docker and Kubernetes (preferably AKS), Helm, image lifecycle, secure supply chain.
- Event‑driven architecture fundamentals: pub/sub, event streaming, consumer groups
- Test‑Driven Development (TDD) and automation mindset; CI/CD pipelines
- Proven resilience engineering knowledge (timeouts, retries, circuit breaker, backpressure, outbox/inbox, DLQ, bulkhead, saga).
- Ability to work autonomously
Optional
- Experience with Kafka (self‑managed or cloud), Azure Event Hubs, or Service Bus at scale; schema registries
- Observability stack: OpenTelemetry, Splunk, distributed tracing; performance and load testing at message/file‑transfer scale.
- Knowledge of secure file exchange and enterprise integration patterns
- Dapr/KEDA, gRPC, and API gateway experience.
- Familiarity with financial messaging standards and non‑functional controls (availability, integrity, confidentiality).
Your responsibilities
- Design & deliver modern integration services to replace/upgrade the communications layer (message/file ingestion, transformation, routing, delivery; synchronous and async models).
- Design for resilience and scale: apply patterns such as circuit breaker, retries with backoff, timeouts, idempotency, outbox/inbox, DLQs, bulkheads, and compensating transactions/sagas.
- Build event‑driven systems leveraging Azure messaging (Service Bus/Event Hubs) and/or Kafka‑style pub/sub; define contracts, schemas, and versioning for backward compatibility
- Develop high‑quality .NET services (.NET , C#, ASP.NET Core, worker services, gRPC/REST), with TDD as a default practice and strong emphasis on code quality, security, and performance.
- Containerise and operate workloads on Kubernetes (OpenShift/AKS), using Helm and Git‑based pipelines (Azure DevOps). Enforce enterprise container standards: image hardening, secrets via platform mechanisms, TLS everywhere, and Kubernetes network policies.
- Own observability: structured logging, tracing, and metrics (e.g., App Insights/Splunk/OpenTelemetry);
- Collaborate in an agile product setup (Scrum), contributing to backlog refinement, DoR/DoD, iterative delivery, and cross‑tribe ceremonies when needed.
- Lead and mentor: pair with, unblock, and coach junior developers; champion engineering best practices across the squad and Communities of Practice.
About the project
We’re modernising a mission‑critical communications layer that routes messages and files between core systems and the outside world (clients, ECB, etc...). As a Senior .NET Developer, you will design, build, and operate resilient, event‑driven services on Azure, helping us evolve from legacy integrations to cloud‑native, containerised workloads. This role is hands‑on and leadership‑oriented: you’ll set engineering standards, and deliver high‑reliability software for a regulated environment (finance or similar).
Adherence to Euroclear values : The role requires strong delivery focus and accountability for translating strategy into measurable outcomes with integrity. Candidates put clients at the centre, take collective ownership, and collaborate effectively while caring about the impact of decisions on colleagues and the long term. They demonstrate courage to challenge ways of working and curiosity to continuously improve efficiency, quality, and results.
About the context: The STP tribe operates messaging and group applications that ensure data, files, and messages are processed seamlessly end‑to‑end. This role directly contributes to that mission.
Ways of working
- Work in a tribe/squad setup with Product Owner, Scrum Master, and Solution Architect, aligned to quarterly/PI objectives and Definition of Ready/Done.
- Participate in tribe ceremonies (e.g., planning, SoS, release boards) and cross‑tribe syncs when impacting shared platforms.
- Collaborate closely with platform teams for container, security, and networking standards compliance.
Great Place to Work for All
We are committed to creating an inclusive culture that celebrates diversity and strives to be a Great Place to Work for All. All qualified applicants will be considered for employment, regardless of any aspect that makes them unique (including race, religion, national origin, gender, sexual orientation, age, marital status, pregnancy, disability, ...). If you need any specific accommodation due to disability or any other reason, you can let the recruiter know during your application process.
As the team is structured around the Lean principles, it is expected from each team member to be involved in the Continuous improvement process. In this framework, some team projects may be assigned to you, their size evolving with your expertise
Why join us
Embark on your new adventure at Euroclear, and work at the heart of the global capital markets. We connect over 2,000 financial institutions across the globe. As an open and resilient infrastructure, we contribute to the stability of the financial markets. We help clients cut through complexity, lower costs, and mitigate risks of financial transactions. At Euroclear, we have the clear ambition to use our key role to facilitate and accelerate a sustainable global financial system.
What we offer
- Work closely with inspiring, supportive and engaged colleagues from more than 80 different countries.
- Practice your talents in a highly professional international environment.
- Join a learning and development environment with an emphasis on knowledge sharing and training.
- Competitive salary and comprehensive benefits.
Benefits
- private medical care
- sharing the costs of professional training & courses
- life insurance
- remote work opportunities
- parking space for employees
- employee referral program
- charity initiatives
- annual bonus
This is how we work
Expert Engineer - Senior Developer
I apply to:
Euroclear
Kraków, Podgórze Duchackie
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