Senior Backend Software Engineer (C#) (вакансія неактивна)

Our Customer:
A global product company in the cybersecurity domain, focused on helping organizations identify and reduce identity-based risks across modern IT environments.

Your tasks:

• Own and maintain backend services written in C# that power high-scale data ingestion and real-time security analysis
• Work with a complex codebase utilizing semi-functional programming principles to ensure reliability and correctness of security detections
• Analyze and resolve complex technical issues, including deep debugging of multi-threaded systems
• Participate in live troubleshooting sessions with enterprise customers, providing hands-on technical support
• Implement improvements and custom solutions tailored to specific customer environments and architectural needs
• Continuously optimize system performance for high-throughput data processing

Required experience and skills:

• 5+ years of backend development experience with strong focus on C# and .NET ecosystem
• Solid expertise in building and maintaining high-load, scalable backend systems
• Strong debugging skills in complex, multi-threaded environments
• Understanding of functional programming concepts (immutability, pure functions, etc.) or willingness to work in such paradigms
• Experience with identity systems such as Active Directory, LDAP, or cloud identity providers (e.g., Azure AD / Entra ID)
• Experience with performance optimization of data processing systems
• Ability to communicate directly with customers and lead technical discussions
• Strong analytical thinking and problem-solving skills
• Upper-Intermediate+ English (for direct communication with global clients)

Would be a plus:

• Background in cybersecurity or security-focused products
• Experience working with enterprise-level, customer-facing support scenarios
• Familiarity with distributed systems and real-time data processing architectures

Working Conditions:

• Remote work
• 5-day working week, 8-hour working day