Senior .NET Full-Stack Lead | Microservices & DevOps

BELVEDERE; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

BELVEDERE in Warsaw is seeking a Senior .NET Developer to lead full‑stack projects within a microservices architecture. You will design, develop and deliver features across frontend and backend layers while mentoring teammates and upholding code quality.

You will work with C#, ASP.NET, MVC and Web API, and front‑end tech like React or Angular, plus Docker, Kubernetes and OpenShift. This contract role sits in a hybrid environment within the financial services space, emphasizing DevOps and Agile

Qualifications

• 10+ years of .NET development experience.
• Experience leading and mentoring development teams.
• Strong knowledge of software architecture and microservices design patterns.
• Front-end experience with React or Angular.
• CI/CD and DevOps practices familiarity.
• Relational database design with SQL Server.

Responsibilities

• Design and develop full-stack applications using C#, ASP.NET, MVC and Web API.
• Build and maintain microservices architecture following best practices.
• Lead and mentor developers, providing technical guidance and code review.
• Develop front-end components using React, Angular or JavaScript frameworks.
• Manage containerised applications using Docker, Kubernetes and OpenShift.
• Design and optimise relational databases, including SQL Server.
• Implement and maintain CI/CD pipelines using DevOps tools.
• Conduct thorough code reviews and maintain code quality using SonarQube.
• Participate in Agile/Scrum ceremonies including sprint planning and estimation.
• Collaborate with stakeholders across technical and non-technical teams.
• Ensure code coverage standards and address vulnerability fixes.
• Use version control systems such as Git, Bitbucket or GitHub effectively.

Skills

Leadership

Mentoring

Excellent communication

Agile / Scrum

Team collaboration

Tools

.NET Core

React

Angular

Docker

Kubernetes

OpenShift

SQL Server

Git

Bitbucket

GitHub

SonarQube

TeamCity

Jenkins

Harness

Job description

BELVEDERE in Warsaw is seeking a Senior .NET Developer to lead full‑stack projects within a microservices architecture. You will design, develop and deliver features across frontend and backend layers while mentoring teammates and upholding code quality.

You will work with C#, ASP.NET, MVC and Web API, and front‑end tech like React or Angular, plus Docker, Kubernetes and OpenShift. This contract role sits in a hybrid environment within the financial services space, emphasizing DevOps and Agile