Sonata Software - Senior .Net Developer

Job Description :

We are looking for a highly experienced Senior Application Developer (.NET) to design, develop, and maintain scalable, high-performance enterprise applications. This role requires deep expertise in C#/.NET, cloud-native architectures, database optimization, and modern development practices. The ideal candidate is a hands-on engineer who can also mentor others, contribute to architectural decisions, and collaborate closely with cross-functional teams in an Agile environment.

Key Responsibilities :

- Design, develop, and maintain robust C#/.NET and .NET Core applications, including RESTful APIs and backend services.

- Build secure, scalable, and high-performance microservices and distributed systems.

- Leverage AI-powered development tools to improve productivity, code quality, and system intelligence.

- Develop, maintain, and optimize SQL Server stored procedures, functions, and complex queries to ensure performance and scalability.

- Integrate applications with AWS services, including :

• Amazon SQS (messaging and queuing)
• Amazon SES (email services)
• Amazon S3 (object storage)

- Implement Test-Driven Development (TDD) and Behavior-Driven Development (BDD) practices using NUnit, xUnit, or similar frameworks.

- Enforce coding standards, conduct code reviews, and maintain high levels of unit test coverage and code quality.

- Participate actively in Agile/Scrum ceremonies, including sprint planning, stand-ups, reviews, and retrospectives.

- Collaborate with product owners, architects, QA, and DevOps teams to manage deliverables and ensure timely project execution.

- Troubleshoot, debug, and resolve application issues in real-time production environments, performing root cause analysis.

- Support CI/CD pipelines and deployment processes to ensure smooth releases across environments.

- Create and maintain technical documentation, including architecture diagrams, design specifications, and API documentation.

- Mentor junior and mid-level developers, providing technical guidance and best practices.

Required Skills & Qualifications :

- 8+ years of hands-on experience in application development using C# and .NET / .NET Core.

- Strong experience developing RESTful APIs and backend services.

- Advanced knowledge of SQL Server, including performance tuning and query optimization.

- Experience working with AWS cloud services, particularly SQS, SES, and S3.

- Solid understanding of software design patterns, SOLID principles, and clean architecture.

- Experience with CI/CD pipelines using tools such as GitHub Actions, Azure DevOps, Jenkins, or similar.

- Familiarity with Linux-based environments and command-line tools.

- Strong understanding of application security, authentication, and authorization mechanisms.

- Excellent problem-solving, debugging, and analytical skills.

- Strong communication skills with the ability to work effectively in cross-functional teams.

Preferred / Nice-to-Have Skills :

- Experience with Docker, containers, and orchestration tools.

- Exposure to event-driven architectures and messaging systems.

- Experience working in cloud-native or serverless architectures.

- Knowledge of front-end frameworks (Angular, React, or similar) is a plus.

- Familiarity with performance monitoring and logging tools.

- Experience working on large-scale, high-availability enterprise systems.

Why Join Us?

- Opportunity to work on enterprise-impact, mission-critical systems used at scale.

- Be part of an AI- and cloud-driven architecture, leveraging modern technologies.

- Strong engineering culture focused on quality, innovation, and continuous improvement.

- Competitive compensation and benefits package.

- Collaborative environment that values technical excellence and career growth.

- Exposure to complex, real-world problems and cutting-edge solutions.