Senior Fullstack .NET Developer (Angular)

Job Description

• About MARGO MARGO is an international IT consulting company founded in Paris in 2005, with offices in London and Warsaw. We specialize in delivering highly skilled IT experts to complex enterprise projects across Europe. At MARGO, we focus on long-term partnerships, transparency and technical excellence.
• 120 zł - 135 zł an hour About the project We are currently looking for a Senior Fullstack .NET Developer to join a long-term enterprise banking project. You will work in a complex microservices environment, supporting large-scale distributed systems and contributing to high-quality, production-grade solutions. This role is designed for an experienced engineer who takes ownership, actively participates in architectural decisions, and maintains high standards of code quality and testing. Your responsibilities - Design, develop and maintain backend services using C#, .NET Core and .NET Framework - Build and extend frontend components using Angular and JavaScript - Design and implement REST APIs - Develop and maintain microservices-based systems - Create and maintain unit and automated E2E tests (Cucumber) - Participate in technical and architectural decision-making - Take ownership of code quality and code review standards - Work with CI/CD pipelines and deployment automation - Collaborate closely with DevOps, QA, Analysts and Product teams - Support less experienced developers through technical guidance and knowledge sharing Must have (Requirements) - Strong commercial experience with C#, .NET Core and .NET Framework - Senior-level experience with Angular and JavaScript - Solid knowledge of SOLID principles, design patterns, IoC, DI - Advanced experience with unit testing and automated E2E testing (Cucumber) - Strong REST API development skills - Proven experience with microservices architecture - Advanced experience with Docker and Kubernetes - Experience working in enterprise-scale projects - Good knowledge of CI/CD processes - Experience with Git, Jira, TeamCity, Jenkins Nice to have - Experience with cloud platforms (Azure, GCP) - Ansible or GitHub Actions - PowerShell - Enterprise integration experience - Linux/ Windows administration basics
• What we offer: - Long-term cooperation on stable banking project - Remote-first work model with regular on-site collaboration days - Employment or B2B contract (based on your preference) - Professional onboarding and technical support - Opportunity to grow in enterprise-scale systems - Collaboration with experienced developers and architects - Friendly and supportive MARGO team
• We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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