Senior Backend Engineer (.NET/C#) - Remote

Endurance Warranty Services, LLC

15h•Remote

About The Position

Endurance Warranty Services is hiring a Senior Backend Engineer to help design, build, and scale modern enterprise systems powering critical business operations. In this role, you’ll lead backend development efforts, architect scalable services and data models, and collaborate closely with frontend engineers, product stakeholders, and other technical teams to deliver reliable, high-performance applications. This is a great opportunity for someone who enjoys solving complex backend problems, improving system architecture, mentoring engineers, and helping define engineering best practices in a fully remote environment.

Requirements

Strong professional experience building backend applications with C# and .NET
Deep understanding of relational databases, SQL Server, and query optimization
Experience designing and maintaining scalable APIs and backend services
Strong experience with Entity Framework / EF Core and data modeling
Ability to translate business requirements into scalable technical solutions
Excellent problem-solving skills and strong ownership mentality
Strong communication skills and experience collaborating in remote teams
Experience maintaining and improving production-grade enterprise systems
Comfort making architectural decisions and guiding others through implementation
Practical experience using AI coding assistants (Claude Code, Cursor, Copilot, etc.) in your development workflow
Existing authorization to work in the U.S., as we are unable to offer new visa sponsorship.

Nice To Haves

Experience with microservices or distributed systems
Familiarity with Azure services and cloud-native development
Experience with background processing systems, queues, or scheduled jobs
Experience with authentication/authorization systems and role-based permissions
Exposure to frontend technologies such as React or TypeScript
Experience with automated testing frameworks and integration testing
Familiarity with Docker and containerized environments
Experience with observability, logging, and monitoring platforms
Mentorship or technical leadership experience

Responsibilities

Design and implement scalable backend services, APIs, and enterprise applications using C# and .NET
Build and maintain clean, efficient, and reliable database architectures using SQL Server and Entity Framework
Develop RESTful APIs and integrations that support internal and customer-facing applications
Collaborate cross-functionally with frontend engineers, product teams, and stakeholders to deliver high-impact solutions
Optimize application performance, database queries, and backend workflows
Drive best practices for backend architecture, code quality, testing, observability, and maintainability
Participate in and lead code reviews, providing constructive feedback and technical guidance
Mentor junior and mid-level engineers through coaching, pairing, and architectural discussions
Troubleshoot production issues and improve system reliability and monitoring
Contribute to technical planning, system design discussions, and long-term platform improvements
Performs other related duties as assigned or as business needs evolve.