Backend Developer

Freelance/ Contract - Backend Developer: About the Role We are seeking an experienced Backend Developer to support the development, enhancement, and maintenance of enterprise-grade software applications. This role focuses on building scalable backend systems, optimizing application performance, developing APIs and services, and collaborating with cross-functional teams to deliver high-quality software solutions. The ideal candidate is passionate about modern software engineering practices and leveraging the newest AI technologies, tools, and development workflows to improve development speed, code quality, automation, and overall product innovation.

This is a hands-on engineering role suited for someone who thrives in a fast-paced environment, works independently, and collaborates effectively with QA, DevOps, front-end engineers, and product stakeholders. To apply for this job you must send your hourly rate and resume to only. Key Responsibilities Design, develop, and maintain scalable backend applications using C# and .NET Core Build and enhance RESTful APIs, backend services, and business logic layers Utilize AI-assisted development tools and modern engineering workflows to improve productivity, code quality, testing, and documentation Develop and optimize database structures, queries, and ORM implementations Improve application performance, scalability, reliability, and maintainability Collaborate with front-end developers to support application integrations Work closely with QA to ensure test coverage, regression stability, and application quality Leverage AI tools to assist with debugging, code reviews, testing automation, and development acceleration Assist with CI/CD pipeline integration and deployment best practices Participate in architecture discussions and technical planning Document technical solutions, architectural decisions, and development standards using modern AI-enhanced documentation workflows where appropriate Identify technical risks and propose effective solutions Support cloud-native and containerized application environments using Docker and related technologies Contribute to security, authentication, and authorization implementations (OAuth, JWT, etc.) Stay current with emerging AI technologies, software engineering trends, and backend development best practices Required Qualifications 7+ years of professional backend software development experience Strong expertise in C#, .NET Framework, and .NET Core Strong understanding of backend architecture and distributed systems Experience building and maintaining RESTful APIs and backend services Experience using modern AI-assisted software development tools and workflows Solid experience with SQL and relational databases (SQL Server, PostgreSQL, or similar) Experience working with cloud platforms such as AWS or Azure Hands-on experience with Docker and containerized deployments Strong understanding of object-oriented design principles and software engineering best practices Ability to work efficiently in fast-paced environments using automation and AI-enhanced development practices Comfortable working in a freelance/contract capacity with minimal oversight Strong communication, collaboration, and documentation skills Nice to Have Experience with AI-integrated development environments and coding assistants Experience with microservices architecture Familiarity with Kubernetes or AWS ECS Experience integrating with front-end frameworks such as Angular or React Knowledge of CI/CD tools (GitHub Actions, Azure DevOps, Jenkins, etc.) Experience with performance tuning and application monitoring Knowledge of security best practices for backend applications Previous experience working on enterprise SaaS or education technology platforms Experience implementing AI-powered features, workflows, or integrations into software products Full-stack development experience is a plus Engagement Details Freelance / independent contractor role Flexible hours with some overlap with Pacific Standard Time (PST) business hours How to Apply To apply for this job you must send your hourly rate and resume to only.