.Net Developer w Polska

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a . NET Developer based in Poland. As a . NET Developer, you will contribute to the development, maintenance, and support of reliable software applications in a dynamic, remote-first environment. You will use your expertise in C# and . NET technologies to build and enhance web applications, APIs, and backend services that support essential business operations. Beyond development, you will play an important role in maintaining application stability by diagnosing technical issues and resolving production incidents efficiently. You will collaborate closely with development, QA, DevOps, and infrastructure teams to streamline deployments and improve application performance. Your work will also contribute to continuous integration and continuous delivery (CI/CD) practices, helping ensure smooth releases and dependable software delivery. This contract opportunity is ideal for a technically strong professional who enjoys combining hands-on software engineering with practical troubleshooting and production support. Working remotely, you will have the opportunity to solve meaningful technical challenges while contributing to application reliability, operational efficiency, and continuous improvement. Accountabilities: - Develop and maintain applications: Design, build, enhance, and maintain software solutions using C#, . NET, . NET Core, and ASP. NET Core. - Build APIs and backend services: Develop and support web APIs, backend components, and web applications that meet functional and performance requirements. - Troubleshoot technical issues: Investigate application errors, debug code, identify root causes, and implement effective fixes to maintain system reliability. - Provide production support: Monitor application health, respond to incidents, resolve technical issues within agreed timelines, and minimize service disruptions.

- Optimize application performance: Analyze logs, diagnose performance bottlenecks, troubleshoot deployment failures, and implement improvements to application stability. - Support DevOps activities: Collaborate with DevOps teams on build processes, deployment workflows, release management, and CI/CD pipeline maintenance. - Manage source control and deployments: Use Git and Azure DevOps or equivalent platforms to manage code, coordinate development activities, and support software delivery. - Conduct root cause analysis: Participate in post-incident investigations, document findings, and implement preventive measures to reduce recurring issues. - Collaborate across technical teams: Work closely with developers, QA engineers, DevOps specialists, infrastructure teams, and other stakeholders to deliver reliable solutions. - Follow engineering best practices: Apply established standards for development, security, deployment, and production support. - Maintain technical documentation: Document code-related solutions, troubleshooting procedures, deployment activities, and support processes to facilitate knowledge sharing. Requirements: - Professional experience: Demonstrated hands-on experience developing and maintaining applications using C# and the . NET ecosystem. - . NET expertise: Strong knowledge of . NET and . NET Core, including practical experience with ASP. NET Core. - API and backend development: Solid understanding of RESTful Web APIs, backend services, and web application architecture. - Debugging and troubleshooting: Excellent diagnostic skills, with the ability to investigate complex application issues, identify root causes, and deliver effective solutions. - Production application support: Experience supporting live applications, resolving technical incidents, monitoring system behavior, and maintaining service reliability. - DevOps knowledge: Familiarity with DevOps principles, CI/CD pipelines, build automation, deployment workflows, and release management.