Senior Backend Engineer (.NET Core)

Job Title: Senior Backend Engineer (.NET Core)

Location: Remote

Hours: 8:00 AM to 5:00 PM, Pacific Time

Employment Type: Full-Time

Salary: $45,000 - $55,000 USD

Company: U.S. - based enterprise SaaS platform

We are looking for an experienced Senior Backend Engineer who excels in designing and building high-performance, scalable, and secure backend systems using .NET Core, C#, SQL, and modern ORMs such as Dapper and Entity Framework. This is a hands-on role suited for an engineer who thrives in solving complex backend challenges and has a deep understanding of design patterns and architectural best practices.

You’ll be joining a high-impact team driving innovation in backend services, data integration, and enterprise-grade API development. Experience leveraging AI productivity tools like ChatGPT, Claude, or GitHub Copilot is highly valued, as is familiarity with third-party service integration.

Key responsibilities

• Architect and implement scalable, maintainable backend services using .NET Core and C#
• Design and optimize complex SQL Server queries, procedures, and schemas using Dapper, Entity Framework, and ADO.NET
• Apply industry-standard design patterns to structure robust and flexible software components
• Build and consume RESTful APIs, and integrate with third-party platforms (e.g., SaaS, third party payment gateways & SSO, HR systems)
• Leverage AI-based coding tools to enhance development speed, code quality, and testing
• Collaborate with cross-functional teams (Frontend, Product, QA, DevOps) to deliver end-to-end features
• Implement secure coding practices, manage access control (OAuth2/JWT), and ensure data privacy
• Troubleshoot performance bottlenecks, scalability issues, and data integrity concerns
• Participate in design reviews, architecture discussions, and continuous improvement efforts

Required qualifications

• 5–7 years of backend development experience with .NET Core and C# in production environments
• Strong expertise in SQL Server, including query optimization, schema design, and stored procedures
• Proficient with Dapper, Entity Framework, and data access patterns
• Strong hands-on knowledge of software design patterns (e.g., Repository, Factory, CQRS, Singleton, DI)
• Demonstrated experience with REST API design, authentication/authorization flows, and secure communications
• Proven track record of integrating with third-party APIs and services
• Active use of AI coding assistants (e.g., ChatGPT, Claude, GitHub Copilot) in your workflow
• Solid understanding of performance optimization, system scalability, and resilient architectures
• Familiarity with Git, modern CI/CD pipelines, and deployment practices
• Experience working with cloud platforms (preferably Azure or AWS)
• Exposure to event-driven architectures, microservices, or message queues (e.g., RabbitMQ, Kafka)
• Experience with Docker and container orchestration (e.g., Kubernetes)
• Familiarity with domain-driven design (DDD) or clean architecture
• Background in observability, logging, and monitoring practices

Nice to have

• Basic knowledge of Angular and ability to collaborate effectively with front-end developers
• Proficiency in Python with the flexibility to adapt and pivot as project needs evolve

Why join us

• Work on challenging, meaningful problems with enterprise-level impact
• Leverage cutting-edge tools and modern AI technologies
• Competitive compensation, benefits, and growth opportunities
• Flexibility to work remotely