Backend Developer - C# and Python

Job Title Senior Backend Developer (.NET/C# & Python) Experience 7-8 Years Location Hybrid / Remote / Onsite (As Applicable) Job Summary We are looking for a highly skilled Senior Backend Developer with 7-8 years of experience in designing, developing, and supporting enterprise-grade backend applications and APIs. The ideal candidate will possess strong expertise in C#/.NET, Python, microservices architecture, cloud platforms, and database technologies. The role requires building scalable, secure, and high-performance backend systems while collaborating with architects, product owners, and cross-functional engineering teams. Key Responsibilities • Design, develop, and maintain scalable backend applications and services. • Develop robust APIs using ASP.NET Core Web API and Python frameworks. • Build and maintain microservices-based architectures. • Design and optimize database schemas, queries, and stored procedures. • Implement authentication, authorization, and security best practices. • Integrate applications with external systems, APIs, and third-party services. • Troubleshoot and resolve application performance and reliability issues. • Participate in technical design discussions and architecture reviews. • Write clean, maintainable, and testable code following coding standards. • Mentor junior developers and conduct code reviews. • Work closely with DevOps teams to enable CI/CD and automated deployments. • Collaborate within Agile/Scrum teams to deliver business solutions. Required Technical Skills Backend Development • Strong expertise in C# and .NET Core/.NET 6+ • ASP.NET Core Web API • Entity Framework Core • Python development experience • FastAPI, Flask, or Django • RESTful API design and development • Microservices Architecture • Asynchronous Programming • Dependency Injection Database Technologies • SQL Server • PostgreSQL • MySQL • MongoDB or other NoSQL databases • Database Performance Tuning • Query Optimization • Data Modeling Cloud & DevOps • Microsoft Azure or AWS • Docker • Kubernetes • CI/CD Pipelines (Azure DevOps, GitHub Actions, Jenkins) • Infrastructure as Code (Terraform preferred) Security • OAuth 2.0 • OpenID Connect • JWT Authentication • Secure Coding Practices • API Security Messaging & Integration • Azure Service Bus • RabbitMQ • Kafka • Event-Driven Architecture • API Gateway Concepts Testing & Quality • xUnit / NUnit • PyTest • Integration Testing • Performance Testing • SonarQube Version Control • Git • GitHub • Azure Repos Required Qualifications • Bachelor's or Master's degree in Computer Science, Engineering, or related discipline. • 7-8 years of software development experience. • Minimum 5+ years of hands-on experience with C#/.NET development. • Minimum 2-3 years of Python development experience. • Strong understanding of software design principles and design patterns. • Experience building scalable APIs and distributed systems. • Strong analytical and problem-solving skills. • Excellent communication and collaboration skills. Preferred Qualifications • Experience with cloud-native application development on Azure. • Experience with AI/ML integrations using Python. • Knowledge of data engineering and ETL pipelines. • Experience with serverless architectures (Azure Functions/AWS Lambda). • Exposure to Generative AI, OpenAI, or Azure AI Services. • Experience leading technical initiatives and mentoring teams. Key Competencies • Backend System Design • API Development • Technical Leadership • Cloud Architecture • Performance Optimization • Problem Solving • Collaboration & Communication Nice to Have • Azure Functions • FastAPI • Kafka/Event Streaming • GraphQL • Redis Caching • Elasticsearch • AI/ML Frameworks (Pandas, NumPy, Scikit-learn) • Azure OpenAI Integration • Domain-Driven Design (DDD)