About the Position

Senior Fullstack.NET Developer (Angular)

Location: Warsaw

Remote: Yes

Employment Type: Permanent contract & B2B

Salary: 120 zł - 135 zł an hour

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.

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.

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

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

We Offer

Long-term cooperation on a 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 and identifying potential inconsistencies or verification signals in application materials based on available information. 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.

Apply for this job

Senior Fullstack.NET Developer (Angular)

Job description