Senior Full-Stack Developer (.NET + Angular)

About the Role

We are looking for two Senior Full-Stack Developers to join a project delivering an IT solution for a railway sector client. You will work across backend and frontend layers, contributing to the design and implementation of scalable, secure applications, including API development, database logic, CI/CD environments, and module integrations within the ISZTP ecosystem.

Responsibilities

• Develop and maintain backend services using .NET 10 and ASP.NET Core.
• Build frontend interfaces with Angular.
• Design and consume RESTful APIs.
• Implement business logic, security mechanisms, and the database layer using MS SQL Server.
• Develop the OIU application for billing, complaints, and reporting.
• Develop and maintain ISZTP-integrated modules.
• Prepare and configure development environments.
• Work with CI/CD pipelines in Azure DevOps.
• Maintain code quality through Git and Git Flow in team repositories.
• Create technical documentation.

Requirements

• At least 5 years of experience as a backend (.NET) and frontend (Angular) developer.
• At least 5 years on the .NET platform with ASP.NET Core, Git, and Git Flow.
• At least 5 years of experience with Angular 2.0 or higher.
• At least 5 years building scalable applications with varied inter-component communication patterns, including RabbitMQ and MassTransit.
• At least 5 years implementing secure authentication, authorisation, communication, and identity management.
• Solid knowledge of MS SQL Server 2019+, Entity Framework, T-SQL, LINQ, and CLR stored procedures.
• Proficiency in HTML5, CSS3, TypeScript, and JavaScript.
• Experience with responsive layout implementation and UX/UI.
• Familiarity with Azure Service Bus or Kafka is desirable.
• Knowledge of Jira.
• Fluent Polish, spoken and written, at minimum C2 level.

Work Model

• B2B contract.
• 100% remote from Poland.
• Preferred availability: immediate or within 2 weeks.
• Open positions: 2.

About Atos Group

Atos Group is a global leader in digital transformation with approximately 56,000 employees and annual revenue of approximately €7.2 billion, operating in 54 countries under the Atos and Eviden brands.