Senior C# (.NET 9) Developer

BuyerTech is looking for a Senior C# (.NET 9) developer to build in-house electronic trading platforms (B2B/B2G procurement). Salary: 350,000–400,000 RUB net/month. Office in Moscow, full-time.

Development of in-house electronic trading platforms (B2B/B2G procurement). Work with big data, high-load and distributed systems. Stack: .NET 9, C#, Microservices, CQRS + Mediator, PostgreSQL, Redis, RabbitMQ, Elasticsearch, Docker, Kubernetes.

• .NET experience 3+ years, including 2+ years confidently at Senior level. • Systems thinking: ability to see the whole architecture, not just own task. • Willingness to take responsibility for decisions. • Architecture: experience building distributed and fault-tolerant systems (Microservices). Understanding of CQRS + Mediator. • Databases: strong PostgreSQL (query optimization, indexes, transactions, isolation, partitioning, sharding). NoSQL (Redis). Experience with Entity Framework. • Message brokers: advanced RabbitMQ (consumers, producers, exchange, queues). • Big plus: experience with EIS, understanding of ETP specifics, active use of AI/LLM in production. • Nice to have: experience integrating with EIS. • Important: commercial experience with RabbitMQ and PostgreSQL. Not considering relocants; need people living in Moscow.

Format: office in Moscow (Kievskaya or Frunzenskaya metro, 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 350,000 RUB to 400,000 RUB net (paid twice a month). Bonuses: IT accreditation, equipment provided, connection to AI services, training, career growth opportunities. Location: Russia, Moscow. Full-time, 5/2.