We are seeking a highly skilled Advanced Software Engineer with deep expertise in the .NET ecosystem to join our team.

In this role, you will design, evolve, and optimize large-scale, high-load systems while ensuring top-tier performance, security, and reliability. You will also leverage modern AI development tools to enhance productivity and code quality.

Responsibilities

- Design, develop, and maintain large monolithic systems, ensuring scalability and long-term evolution
- Build and optimize high-load applications using the C# / .NET ecosystem
- Design REST APIs with a focus on scalability, versioning, and security
- Integrate with SOAP and legacy systems as needed
- Perform advanced MSSQL performance tuning, transaction optimization, and handle blocking, locking, and concurrency
- Drive performance optimization, concurrency management, and fault tolerance across services
- Implement secure communication using TLS/SSL and manage certificate handling
- Apply secure coding practices and mitigate common vulnerabilities (OWASP Top 10)
- Conduct threat modeling and define mitigation strategies for critical systems
- Identify and prevent vulnerabilities such as injection attacks, authentication flaws, and data leaks
- Leverage AI development tools and agents to generate production-quality code and tests
- Review,



evaluate, and govern AI-generated output to maintain high engineering standards

Requirements

- 12+ years of professional software engineering experience
- Deep expertise in the C# / .NET ecosystem
- Proven background in designing and working with high-load systems
- Robust skills in REST API design (scalability, versioning, security) and SOAP / legacy integrations
- Advanced proficiency in MSSQL, including performance tuning at scale, transaction optimization, and concurrency handling (blocking and locking)
- Showcase of designing and evolving large monolithic systems
- Expertise in performance optimization, concurrency, and fault tolerance
- Deep understanding of application security, including TLS/SSL, secure communication, and certificate handling
- Familiarity with secure coding practices, OWASP Top 10, and threat modeling and mitigation strategies
- Capability to identify and prevent vulnerabilities such as injection, authentication flaws, and data leaks
- Strong experience using and evaluating AI development tools and agents for generating production-quality code, tests, and governing AI output
- Proficiency in English at an Upper-Intermediate level (B2) or higher

📌 Advanced Software Engineer - .NET (Pune)
🏢 EPAM Systems
📍 Pune