We're building a trading direction (a spot and derivatives exchange) as a startup within a larger crypto ecosystem. Now we're looking for a Senior C# Backend Developer who wants to build a high-load trading platform with us.ResponsibilitiesDevelop and maintain backend services for the crypto exchange using C#/.NETDesign and evolve a distributed, high-load architectureBuild and maintain APIs (gRPC/REST) and integrations with internal servicesWork with messaging and streaming systems (Kafka / RabbitMQ)Work with storage systems (PostgreSQL, Redis, ClickHouse as a plus) and optimize them for high loadContribute to engineering practices: testing, code reviews, technical designRequirements5+ years of commercial experience with C#/.NETStrong background in high-load distributed backend systemsSolid production experience with gRPCHands-on experience with PostgreSQLExperience with Kafka or RabbitMQNice to have: experience with ClickHouseStrong plus: background in trading, crypto exchanges, or algo-tradingBasic understanding of trading and finance logic (balances, P&L, trade reporting)What We OfferFully remote work from anywhere in the worldFlexible working hours, focus on results over time tracking20 working days of vacation + 12 additional bonus days100% paid sick leave with minimal bureaucracyReal ownership, complex technical challenges, and the chance to shape a core trading product