Senior Backend Developer (.NET)

🏢 Company: REMOTE GLOBAL 🌍 Format: Remote (MSK)

Tasks:

• Design and develop .NET microservices processing thousands of requests per second • Ensure idempotency, retries, and correct error handling in a distributed system • Integrate with external APIs and Fragment/TON, work with headers, cookies, and binary formats • Design PostgreSQL schemas and optimize queries for high loads • Configure Elasticsearch for fast search and analytics • Improve reliability and performance: reduce p95/p99, caching, rate limiting, observability (Prometheus/Grafana/OpenTelemetry)

Requirements:

• 5+ years of .NET development experience • Deep knowledge of web integrations: HTTP/2, CORS, cookies, multipart/x-www-form-urlencoded • Experience with cryptography: Ed25519, SHA-256, and binary protocols • Strong PostgreSQL experience (schemas, indexes, transactions, EF Core migrations) • Microservice architecture and message brokers: gRPC/Protobuf, RabbitMQ/Kafka, Outbox, idempotency • Observability and reliability: Prometheus/Grafana, structured logging, OpenTelemetry, retries/timeouts/circuit-breaker

Will be a plus:

• Experience with TON (TonSDK, Cell/BOC, ton-proof, Telegram Stars) • Skills in bypassing anti-bot mechanisms (Cloudflare, headers, sessions) • DDD/Event-driven, Saga/orchestrators, distributed transactions • Experience in anti-fraud and payment security, KMS • Skills in writing benchmarks and property-based tests

Stack:

.NET (C#), PostgreSQL, Elasticsearch, gRPC, REST, RabbitMQ, Kafka, Docker, Prometheus, Grafana, OpenTelemetry, Ed25519, SHA-256

📩 Apply