Senior .NET / C# Developer

STAFIDE; Amsterdam; On-site; EUR 90,000 - 130,000; Full time

Job summary

STAFIDE is seeking a Senior .NET/C# Developer to design, build, and maintain enterprise-grade banking applications leveraging .NET Core/.NET 8, Azure, and microservices. You will craft secure RESTful APIs, implement cloud-native solutions, and drive DevOps practices across CI/CD pipelines.

You will collaborate with architects, product owners, and analysts to translate complex requirements into scalable technical solutions, mentor juniors, and participate in Agile ceremonies.

Qualifications

• 10+ years of professional software development experience.
• Minimum 8 years hands-on C# / .NET development.
• Minimum 5 years with .NET Core and Microsoft Azure.
• Minimum 3 years in Banking, Lending, or Credit domain projects.
• Strong hands-on experience with C# and .NET Framework 4.x.
• Strong experience with .NET Core / .NET 6/7/8.
• Experience with ASP.NET MVC, ASP.NET Core, Web API, and REST services.
• Strong knowledge of Entity Framework / EF Core and LINQ.
• Hands-on experience with REST APIs and microservices.
• Experience with Azure Logic Apps is advantageous.
• Strong SQL Server expertise, including stored procedures, query optimization, and database design.
• Experience with messaging technologies such as Azure Service Bus; RabbitMQ or Kafka experience is advantageous.
• Hands-on experience with Azure DevOps Pipelines, CI/CD, and Git.
• Experience with Docker.
• Knowledge of Kubernetes is advantageous.
• Experience working in Commercial Banking, Retail Banking, Corporate Banking, Lending, or Credit environments.
• Strong understanding of secure and scalable enterprise application development.

Responsibilities

• Design and develop robust C#/.NET applications, APIs, and microservices.
• Build secure, scalable, and high-performance RESTful APIs for banking and credit systems.
• Develop cloud-native applications using Microsoft Azure services.
• Work effectively with Azure compute, integration, storage, security, monitoring, and API management services.
• Design and optimize microservices architectures for enterprise financial applications.
• Work with SQL Server databases, stored procedures, query optimization, and database design.
• Implement asynchronous and event-driven integrations using Azure Service Bus and other messaging technologies.
• Troubleshoot complex application and production issues and perform effective root-cause analysis.
• Conduct application performance tuning and implement appropriate optimization strategies.
• Apply security, audit, governance, and regulatory requirements within banking applications.
• Implement and maintain CI/CD pipelines using Azure DevOps.
• Work with Git, Docker, and modern DevOps practices.
• Conduct effective code reviews and maintain high development standards.
• Mentor junior developers and provide technical guidance.
• Translate complex business requirements into practical and maintainable technical solutions.
• Collaborate effectively with architects, business analysts, product owners, developers, and other stakeholders.
• Work effectively in an Agile development environment.

Skills

C# / .NET

Azure

Microservices

REST APIs

SQL Server

EF Core / LINQ

Azure DevOps

Docker

Kubernetes

Git

Azure Service Bus

CI/CD

Agile

ASP.NET Core

Tools

ASP.NET MVC

Web API

Job description

As a Senior .NET / C# Developer, you will:

• Design, develop, maintain, and support enterprise-grade applications using C#, .NET Core/.NET 8, ASP.NET Core, and Web API.
• Build and optimize microservices-based architectures for banking, lending, and credit platforms.
• Develop secure and scalable RESTful APIs for loan origination, credit processing, customer onboarding, and payment systems.
• Design and implement cloud-native solutions leveraging Microsoft Azure services.
• Collaborate with business analysts, architects, product owners, and stakeholders to translate business requirements into technical solutions.
• Ensure applications comply with banking security, audit, governance, and regulatory standards.
• Perform application performance tuning, troubleshooting, debugging, and production support.
• Lead code reviews and enforce software development best practices.
• Mentor junior developers and contribute to knowledge sharing within the development team.
• Participate in Agile ceremonies and technical design discussions.
• Support CI/CD implementation and DevOps practices.
• Contribute to the design and implementation of scalable, reliable, and maintainable banking and financial services applications.

What You Bring to the Table:

• 10+ years of overall professional software development experience.
• Minimum 8 years of hands-on C#/.NET development experience.
• Minimum 5 years of experience with .NET Core and Microsoft Azure.
• Minimum 3 years of experience in Banking, Lending, or Credit domain projects.
• Strong hands-on experience with C# and .NET Framework 4.x.
• Strong experience with .NET Core / .NET 6/7/8.
• Experience with ASP.NET MVC, ASP.NET Core, Web API, and REST services.
• Strong knowledge of Entity Framework / EF Core and LINQ.
• Hands-on experience with REST APIs and microservices.
• Experience with Azure Logic Apps is advantageous.
• Strong SQL Server expertise, including stored procedures, query optimization, and database design.
• Experience with messaging technologies such as Azure Service Bus; RabbitMQ or Kafka experience is advantageous.
• Hands-on experience with Azure DevOps Pipelines, CI/CD, and Git.
• Experience with Docker.
• Knowledge of Kubernetes is advantageous.
• Experience working in Commercial Banking, Retail Banking, Corporate Banking, Lending, or Credit environments.
• Strong understanding of secure and scalable enterprise application development.

You should possess the ability to:

• Design and develop robust C#/.NET applications, APIs, and microservices.
• Build secure, scalable, and high-performance RESTful APIs for banking and credit systems.
• Develop cloud-native applications using Microsoft Azure services.
• Work effectively with Azure compute, integration, storage, security, monitoring, and API management services.
• Design and optimize microservices architectures for enterprise financial applications.
• Work with SQL Server databases, stored procedures, query optimization, and database design.
• Implement asynchronous and event-driven integrations using Azure Service Bus and other messaging technologies.
• Troubleshoot complex application and production issues and perform effective root-cause analysis.
• Conduct application performance tuning and implement appropriate optimization strategies.
• Apply security, audit, governance, and regulatory requirements within banking applications.
• Implement and maintain CI/CD pipelines using Azure DevOps.
• Work with Git, Docker, and modern DevOps practices.
• Conduct effective code reviews and maintain high development standards.
• Mentor junior developers and provide technical guidance.
• Translate complex business requirements into practical and maintainable technical solutions.
• Collaborate effectively with architects, business analysts, product owners, developers, and other stakeholders.
• Work effectively in an Agile development environment.

What we bring to the table:

• The opportunity to work on enterprise-grade banking, lending, and credit technology solutions.
• Exposure to modern .NET, C#, microservices, REST APIs, and Microsoft Azure technologies.
• Opportunities to work with Azure services including App Services, Functions, Service Bus, Azure SQL, Key Vault, Application Insights, API Management, and Entra ID.
• Experience with modern DevOps, CI/CD, Git, Docker, and cloud-native engineering practices.
• Opportunities to contribute to critical financial applications involving loan origination, credit processing, customer onboarding, and payments.
• Collaboration with architects, product owners, business analysts, and technical teams in an Agile environment.
• Opportunities to provide technical leadership, conduct code reviews, and mentor other developers.