Role Overview We are seeking a Senior Staff Backend Engineer to provide technical leadership and drive the architecture of a high-load backend monolith. You will define standards, guide teams, and make critical design decisions across backend systems.
Lead architecture design for high-load monolithic backend systems
Define best practices for C# / .NET, API design, performance, and security
Drive adoption of AI-assisted engineering practices, including use of coding agents for development and testing
Define guidelines for protected and effective use of AI-generated code
Oversee development of REST and SOAP services
Drive performance tuning and scalability within a monolithic architecture
Mentor engineers in both core engineering and AI-assisted development practices
Review system design, code, and database architecture
Own system reliability, scalability, and resilience
Partner with product and engineering leadership on technical strategy
Lead incident analysis and long-term improvements
Deep expertise in C# / .NET ecosystem




Proven experience working with high-load systems
Solid knowledge of REST API design (scalability, versioning, security)
SOAP / legacy integrations
Advanced experience with MSSQL: Performance tuning at scale
Transaction optimization
Blocking, locking, and concurrency handling
Strong experience designing and evolving large monolithic systems
Expertise in performance optimization, concurrency, and fault tolerance
Deep understanding of application security, including TLS/SSL, secure communication, certificate handling
Secure coding practices
Common vulnerabilities (OWASP Top 10)
Threat modeling and mitigation strategies
Experience identifying and preventing vulnerabilities (injection, auth flaws, data leaks, etc.)
Solid experience using and evaluating AI development tools and agents: Generating production-quality code and tests
Reviewing and governing AI output
Establishing best practices for team

📌 Lead Engineer Bengaluru (India)
🏢 MSys Tech India
📍 India