Posted 31 July, 2026
Sr Software Engineer (.Net) - Fixed Term
Five9
India, Chennai (Hybrid)
Full Time
Reference: 102_699192_6130451004
We are looking for a Full Stack .NET Developer with strong expertise in Microsoft technologies and modern front-end frameworks. The role involves building scalable, high-performance web applications using ASP.NET, .NET Core, Web API, SQL, Angular, React and AWS following best engineering practices.
Key Responsibilities
- Develop and maintain web applications using ASP.NET / .NET Core / Web API / SQL
- Build responsive Single Page Applications using Angular and React
- Design and consume RESTful APIs
- Implement microservices and micro-frontend architectures
- Write clean, maintainable, and testable code using SOLID principles and design patterns
- Having experience in AWS cloud stacks, CI/CD Pipelines
- Perform unit testing and support automated testing efforts
- Collaborating with cross-functional and remote teams
- Ensure application performance, security, and scalability
Required Skills & Experience
- 5+ years of experience with Microsoft Technology Stack (ASP.NET, MVC, Web API)
- Strong hands-on experience in React and Understanding of Angular framework for migration projects.
- Experience on cloud technologies and its concepts most preferred AWS.
- Proficiency in SPA architecture
- Strong knowledge of HTML5, CSS3, JavaScript, JSON, jQuery
- Experience with Relational Databases (MS SQL Server Preferred)
- Solid understanding of Data Structures, Design Patterns, and SOLID principles
- Knowledge of multithreading and performance monitoring
- Experience with Unit Testing frameworks
- Familiarity with Git or similar version control tools
- Strong analytical, communication, and problem-solving skills
Preferred Skills
- Experience with .NET Core, .Net Framework, React, Angular, AWS, MS SQL
- Knowledge of BDD/TDD and UI test automation
- Exposure to CI/CD and DevOps tools (Docker, YAML or similar)
- Experience with application security tools
- Strong UI/UX sensibility and attention to detail
Additional Information
- Ability to work independently and in a fast-paced environment
- Flexibility to collaborate across time zones when needed