Senior Fullstack .NET Developer with Angular

Senior • Remote

$1,000,000 - $1,000,000/yr

Białystok, Poland

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!

Sii

Sii is a company recognized as a "Great Place to Work" since 2015, thanks to employee feedback and the implementation of new ideas. Established in 2006, Sii has demonstrated financial stability with a revenue of 2.1 billion PLN and no debts. The company shares its profits with employees, having allocated over 76 million PLN for this purpose since 2022. Sii offers a rich benefits package, including private healthcare, a cafeteria platform, and discounts on cars. Employees can work in comfortable A-class offices or remotely. Sii is involved in numerous fascinating projects for prestigious global brands and invests 1 million PLN annually to support employee passions and volunteer actions. The company emphasizes personal development through meetups, webinars, a training platform, and a technology blog. Sii is characterized by a fantastic atmosphere created by its "Sii Power People."