Senior Backend Developer

Matrix Eastern Europe, the offshore division of Matrix IT, one of the leading global R&D services companies with more than 10,000 professionals, is looking for a Backend Developer to join the team of our client and partner – Qualtero.

We are looking for a Senior C# Engineer to join the team of Qualtero, a leading provider of training management systems for the defense and aviation industries. Their systems help NASA, various armed forces, Boeing, and leading airlines, ensure that their commercial pilots, flight attendant, astronauts, fighter pilots, and army units stay operational and develop essential new knowledge within tight timelines and budgetary constraints. The perfect candidate would be a super talented full-stack Engineer with a very strong technical background, but most of all – with a passion for building clean and engaging user experience, who gets excited by bringing polished UX products to customers, so they LOVE it.

Responsibilities:

• Design and develop robust back-end solutions within our distributed architecture
• Write and maintain high-quality code with thorough test coverage
• Participate in code reviews to uphold our high coding standards
• Produce system designs independently
• Stay updated with the latest C# and .NET developments

Requirements:

• At least 5 years of experience with C# and .NET 8
• Proven experience designing and implementing distributed systems and microservices
• Solid understanding of design patterns, DDD, and CQRS
• Strong background in API design and REST architectural principles
• Experience with PostgreSQL and database optimization
• Focus on security and performance optimization
• Proficiency in cloud services (AWS/Azure/GCP)
• Experience with message-driven architectures
• Proficiency in writing unit and integration tests
• Understanding of security best practices in distributed systems

What we can offer:

• Additional 20 days of paid leave
• Remote work and flexible working hours
• Professional and career development benefits
• Top-quality work environment
• Online courses
• Online sports activities
• Team buildings and Christmas parties