Senior C# (.NET 9) Developer

BuyerTech seeks a Senior C# (.NET 9) developer to build B2B/B2G e-procurement platforms. Salary 300k–350k RUB net, office in Moscow, full-time, experience 3+ years.

We are developing the company's internal direction of electronic trading platforms (B2B/B2G procurement). Work with big data, high-load and distributed systems.

• .NET experience from 3 years, of which 2+ years confidently in a Senior position. • Systems thinking: ability to see the architecture as a whole, not just your task. • Willingness to take responsibility for decisions. • Big plus: experience with EIS, understanding of ETP specifics, and active use of AI/LLM in production. • Architecture: Experience building distributed and fault-tolerant systems (Microservices). Understanding of CQRS + Mediator. • Databases: Confident PostgreSQL (query optimization, indexes, transactions, isolation, partitioning, sharding). Experience with NoSQL (Redis). Experience with EF. • Message brokers: Advanced RabbitMQ (consumers, producers, exchange, queues). • Advantage: experience integrating with EIS.

Format: Office in Moscow (st. m. Kievskaya or Frunzenskaya, 5/2, 09:00-18:00 or 10:00-19:00). After probation — 1 remote day per week. Employment: strictly according to the Labor Code of the Russian Federation. Salary: from 300,000 ₽ to 350,000 ₽ net (payments 2 times a month). Bonuses: IT accreditation, equipment provision, access to AI services, training, career growth. Consideration: Important — commercial experience with RabbitMQ and PostgreSQL required! Also not ready to consider relocators; need people residing in Moscow!