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Senior .NET Developer
We’re looking for a
Senior .NET Developer to design and build scalable backend systems using modern .NET technologies.
You’ll work on
high-performance APIs, cloud-native applications, and distributed systems, with ownership over architecture, code quality, and production reliability.
Tech Stack
Backend: .NET (C#, .NET Core / .NET 6+)
Data: SQL Server, PostgreSQL
Cloud: Azure (preferred)
Infra: Docker, CI/CD
Other: REST APIs, distributed systems
What You’ll Do
- Design and build backend services and APIs using .NET (C# / .NET Core)
- Define system architecture, service boundaries, and data models
- Develop and optimize RESTful APIs for performance and scalability
- Work with relational databases (SQL Server or PostgreSQL) and optimize queries
- Implement secure, reliable services (authentication, authorization, data protection)
- Build and maintain integrations with external systems and APIs
- Deploy and operate services in cloud environments (Azure preferred)
- Set up and improve CI/CD pipelines and delivery processes
- Collaborate with frontend, data, and product teams on end-to-end solutions
What We’re Looking For
- 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, AWS/GCP acceptable)
- Hands-on experience with Docker, microservices, and CI/CD
- Ability to make pragmatic technical decisions and take ownership of solutions
###
Nice to Have
- Experience with Azure services (App Services, Functions, Service Bus, etc.)
- Familiarity with event-driven architectures or messaging systems
- Experience with legacy system modernization or migrations
- Exposure to AI/ML integrations or data-heavy systems
What do we offer you?
- Attractive salary
- Large freedom and real influence
- No unhealthy competition, team approach to meeting challenges
- Remote-first, flexible working culture
- Company apartments in cool cities across Europe: work and enjoy a memorable getaway
About Us
We are a software house with 18 years of experience and a global portfolio of projects. We help businesses modernize, scale, and innovate through custom software solutions. Our team embraces unconventional ideas and new technologies, delivering solutions with real impact. If you value professionalism, creativity, and a strong engineering culture, you'll feel at home here.
join our team: Apply Now!
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Senior .NET Developer
Kraków, Office or Remote
4,300€ - 10,000€ / month (B2B)
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