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)

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