Senior .NET Software Engineer

Euroclear · Poland; Belgium

Grade: Employee

Division: Group Business Solutions (GBS)

As a Senior .NET Software Engineer within Group Business Solutions (GBS), you will play a key role in designing, building, and evolving business-critical applications that support Euroclear's operations and strategic initiatives. You will combine deep technical expertise with application ownership, working closely with business stakeholders, architects, and engineering teams to deliver scalable, secure, and resilient solutions. Beyond software development, you will drive modernization efforts, promote engineering excellence, and help ensure the long-term sustainability and reliability of the application landscape.

Key Responsibilities

  • Carry out the end-to-end design and the build of enterprise-grade .NET solutions, defining technical specifications ensuring scalability, resilience, security, and maintainability across the application landscape.
  • Drive requirements analysis, solution estimation, technical feasibility assessments, and risk identification to enable predictable delivery of complex initiatives and strategic programs.
  • Align with business stakeholders, architects, and product teams to build and ship solutions, help identify modernization opportunities(e.g. cloud migration), and maximize business value through technology-driven enhancements.
  • Champion production reliability and support stability by leading root-cause analysis, implementing permanent corrective actions, and following proactive monitoring and observability practices.
  • Create and govern high-quality solution designs and following strict Euroclear methodology by creating technical documentation, ensuring alignment with enterprise standards, security requirements, and long-term technology roadmaps.
  • As an application owner, own the application roadmap and long-term sustainability, Ensure applications continue to meet business requirements.
  • Review and approve application changes and enhancements, Support design decisions and future evolution of the application
  • Provide technical guidance and mentorship to engineering teams, promoting engineering excellence, best practices, and continuous improvement.

What You Need to Have for This Role

  • Extensive hands-on experience designing, developing, and supporting large-scale distributed applications and enterprise-grade software solutions using Microsoft technologies.
  • Deep expertise in software architecture, design patterns, Domain-Driven Design (DDD), and cloud-native application development.
  • Strong experience with:
    • Visual Studio, Git, GitHub, and Azure DevOps
    • CI/CD pipelines and DevOps automation
    • Microsoft Azure services
    • Microsoft SQL Server and performance diagnostics tools
    • REST APIs, integration patterns, and IBM MQ
    • PowerApps
    • GitHub Copilot and AI-assisted software development

Advanced Proficiency In

  • C#, .NET, and ASP.NET Core
  • REST APIs and Integration Patterns
  • Microsoft SQL Server
  • Microsoft PowerApps
  • Cloud and Hybrid Integration Solutions
  • Designing scalable, secure, resilient, and high-performing applications
  • DevOps practices, CI/CD automation, observability, monitoring, performance tuning, release management, and production support
  • Software quality engineering practices including automated testing, code reviews, static code analysis, security scanning, and continuous improvement
  • Application modernization and cloud migration strategies


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