
Senior C# / .NET Core Developer
Posted Aug 5

Posted Aug 5
This is a fully remote position, open to applicants in Poland.
β’ Designing, implementing, and optimizing business logic using C# and .NET Core
β’ Development of a modern, large-scale application for the public sector, focusing on security and reliability
β’ Designing and implementing a secure REST API
β’ Applying design patterns, Clean Architecture, and Domain-Driven Design (DDD)
β’ Working with relational databases, optimizing queries, creating indexes, and writing stored procedures
β’ Implementing and maintaining unit and integration tests
β’ A minimum of 5 years of overall commercial experience, supported by a higher education degree
β’ At least 3 years of experience (gained within the last 5 years) as a Back-end Developer in commercial projects
β’ Strong knowledge of C# and the .NET Core platform in the context of web and desktop applications
β’ Practical skills in designing and implementing secure REST APIs
β’ Proficiency in applying design patterns and implementing Clean Architecture and Domain-Driven Design (DDD) principles
β’ Experience with MS SQL and PostgreSQL, including query optimization, index creation, and writing stored procedures
β’ Practical knowledge of Entity Framework Core and Dapper
β’ Familiarity with JWT, OAuth2, and FIDO2
β’ Ability to write and maintain unit and integration tests
β’ Proficient in using GIT and Azure DevOps
β’ Proficient in English, enabling comfortable reading of technical documentation and communication
β’ Collaboration in a B2B model or Employment Contract β you choose
β’ Training budget (up to 2500 PLN net per year)
β’ Flexible working hours (considering core hours)
β’ Opportunity for 100% remote work
β’ Multisport Plus card and private medical care (Luxmed)
Sigma Software Group
Plain Concepts
GitLab
Get handpicked remote jobs straight to your inbox weekly.