Senior .NET Backend Architect — Remote-First & Impactful APIs

SKMgroup; Województwo małopolskie; On-site; PLN 254,993 - 339,991; Full time

Benefits offered by this job

Flexible working culture

Company apartments in Europe

Job summary

A software house in Poland is seeking a Senior .NET Developer to design and build scalable backend systems using modern .NET technologies. The role focuses on developing high-performance APIs and distributed systems, requiring 5+ years of experience with .NET/C#. You'll have the opportunity to work in a remote-first, flexible environment with a supportive team culture. Key technologies include Docker, SQL Server, and Azure. This is a chance to contribute to innovative software solutions with real impact.

Qualifications

• 5+ years of experience with .NET / C# in production environments.
• Strong understanding of backend architecture and distributed systems.
• Experience building and scaling REST APIs.
• Solid knowledge of relational databases and data modeling.
• Experience with cloud platforms (Azure preferred).
• Hands-on experience with Docker and CI/CD.

Responsibilities

• Design and build backend services and APIs using .NET.
• Define system architecture, service boundaries, and data models.
• Develop and optimize RESTful APIs for performance.
• Work with SQL Server or PostgreSQL and optimize queries.
• Deploy services in cloud environments (Azure preferred).
• Collaborate with frontend, data, and product teams.

Skills

.NET / C#

Backend architecture

REST APIs

Relational databases

Cloud platforms (Azure preferred)

Docker

CI/CD

Job description

A software house in Poland is seeking a Senior .NET Developer to design and build scalable backend systems using modern .NET technologies. The role focuses on developing high-performance APIs and distributed systems, requiring 5+ years of experience with .NET/C#. You'll have the opportunity to work in a remote-first, flexible environment with a supportive team culture. Key technologies include Docker, SQL Server, and Azure. This is a chance to contribute to innovative software solutions with real impact.