Senior Fullstack .NET Developer with Angular

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

We are looking for a highly skilled Senior Fullstack .NET Developer with Angular to join our dynamic team focused on delivering next-generation digital platforms. The ideal candidate will have strong experience in full-stack development, cloud technologies, and modern software architectures, with a keen interest in leveraging AI to improve customer experience and engineering efficiency.

Your tasks

• Analyze business, functional, and technical requirements for digital platforms, including Customer Experience and eCommerce

• Design, develop, and maintain robust, scalable applications as part of an Agile Scrum team

• Implement RESTful Web APIs and microservices to support application functionality

• Collaborate with front-end teams to deliver responsive, high-quality web interfaces

• Apply modern frameworks and tools to enhance development efficiency and maintainability

• Participate in cloud application development, particularly on Microsoft Azure

• Integrate DevOps processes and tools to support CI/CD and infrastructure management

• Utilize AI-assisted development tools to increase productivity and code quality

  
  

Requirements

• At least 5 years of experience in C#/.NET development, including .NET Core, ASP.NET, and Entity Framework

• Strong front-end development skills using Angular 9+, TypeScript, RxJS, HTML, CSS, and SASS

• Hands-on experience with RESTful Web APIs and microservice architectures

• Proficiency with modern frameworks and tools such as GraphQL, Mass Transit, Autofac, Mapster, AutoMapper, FluentValidation, Apollo Angular, and Angular Material

• Experience in cloud development, especially Microsoft Azure

• Familiarity with DevOps processes and tools, including Azure DevOps, Terraform, PowerShell, and MACH Composer

• Solid understanding of Git, SOLID principles, design patterns, and software architecture best practices

• Experience using AI-assisted development tools and interest in leveraging AI for customer experience, automation, or engineering efficiency

• Fluency in English

• Residing in Poland required

What we offer 

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas 

• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market 

• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 

• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more 

• Comfortable workplace – class A offices or remote work 

• Dozens of fascinating projects for prestigious brands from all over the world 

• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers 

• Investment in your growth – meetups, webinars, training platform and technology blog – you choose 

• Fantastic atmosphere created by all Sii Power People 

Join the Sii team – develop your skills, gain experience, and build your career!