Senior .NET Enterprise Developer — Remote (Poland)

Altherias; Warszawa; Remote; PLN 120,000 - 180,000; Full time

Job summary

Altherias is seeking a Software Developer (.NET) in Poland. The role is mainly remote with proximity to Warsaw for occasional travel. You will design, develop and optimize enterprise web apps on .NET Core / C#, work with React/TypeScript SPAs, and manage deployments via Azure DevOps Pipelines.

We value 6+ years IT experience (3+ in this role), UML design ability, and strong knowledge of data/business/UI layers. Experience with security, deployments, and third-line support is required.

Qualifications

• Proven development and support of enterprise web applications on .NET Core / 8 with C#.
• Experience with EF and SQL Server, and React/TypeScript SPAs.
• Experience deploying via Azure DevOps Pipelines and maintaining code quality.
• Know-how in Windows/IIS deployment and container platforms (Nutanix/OpenShift).
• Familiar with Hangfire, Data Protection, security tests and remediation.

Responsibilities

• Designs and develops the system end-to-end.
• Optimizes software for performance, security and quality.
• Produces technical documentation and estimates effort.
• Sets software development standards and explores technical solutions.
• Collects metrics and manages configurations and releases.
• Contributes to requirements analysis, testing and deployment.
• Tests solutions and develops testing tools; prototypes new ideas.
• Acts as 2nd/3rd line support and collaborates with external contractors.

Skills

Full lifecycle experience

Enterprise software systems

UML design

Layered architecture (UI/BL/DL) design

Scrum development

Education

Bachelor's degree or 3 years higher ed

Advanced software development certificate

Tools

Azure DevOps Pipelines

Windows/IIS deployment

Nutanix/OpenShift container platforms

Hangfire background jobs

ASP.NET Core Data Protection

Certificate management & security scanning

Job description

Altherias is seeking a Software Developer (.NET) in Poland. The role is mainly remote with proximity to Warsaw for occasional travel. You will design, develop and optimize enterprise web apps on .NET Core / C#, work with React/TypeScript SPAs, and manage deployments via Azure DevOps Pipelines.

We value 6+ years IT experience (3+ in this role), UML design ability, and strong knowledge of data/business/UI layers. Experience with security, deployments, and third-line support is required.