
Senior/Lead .NET Developer
Posted Aug 4

Posted Aug 4
This is a fully remote position, open to applicants in Poland.
• Develop and improve new features for the platform
• Design and build scalable backend services
• Engage in architectural and technical discussions
• Produce clean, maintainable, and testable code
• Work collaboratively with distributed teams across the project
• For Team Lead: Guide technical decisions and implementation strategies
• For Team Lead: Mentor and assist team members
• For Team Lead: Uphold engineering best practices and code quality standards
• For Team Lead: Take part in planning, estimation, and coordination tasks
• For Team Lead: Collaborate closely with stakeholders and other development teams
• Minimum of 5 years of commercial experience in software development
• Strong commercial proficiency in C#, .NET 8+, and contemporary development practices
• Experience with Entity Framework
• Solid understanding of Microsoft SQL Server
• Experience with Microsoft Azure, including Azure Service Bus
• Proficiency in developing RESTful APIs
• Familiarity with unit testing and xUnit
• Upper-Intermediate or higher level of English proficiency
• For Team Lead: Experience in leading or mentoring engineers
• For Team Lead: Experience in making technical decisions and driving implementation strategies
• For Team Lead: Ability to coordinate development activities and support the team
• For Team Lead: Experience in taking ownership of technical solutions and delivery
• Nice to have: Experience in Healthcare or Insurance sectors
• Nice to have: Experience with AI-assisted development tools such as Windsurf
• Competitive salary and performance-based bonuses
• Opportunities for professional development and training
• Flexible working hours and remote work options
• Comprehensive health insurance plans
• Supportive work environment with a focus on team collaboration
Sigma Software Group
Plain Concepts
GitLab
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