Technical Lead C# (Crypto)

TL;DR

Technical Lead C# (Crypto Trading): Own the matching engine, order lifecycle, and risk management for a centralized crypto exchange with an accent on low-latency high-throughput systems, derivatives handling, and persistence models. Focus on designing reliable interaction patterns, consistency mechanisms, and performance tooling for production traffic.

Location: Fully remote from anywhere in the world

Company

Crypto exchange building core trading infrastructure including matching engine, risk management, spot trading, and derivatives.

What you will do

• Own matching engine and order lifecycle: limit/market/stop orders, post-only/IOC/FOK, self-trade prevention, partial fills
• Develop risk engine for derivatives: margin modes, PnL/funding calculations, liquidations, ADL, insurance fund
• Define consistency and persistence: event sourcing, trade journal, snapshots, replay, crash recovery
• Design interactions with gateways, custody, market data, clearing services
• Set latency/throughput targets and build measurement tooling: benchmarks, load testing, profiling

Requirements

• 7+ years C#/.NET experience, including 2–3 years as Tech Lead/Architect
• Production experience with matching engine, exchange gateway, risk engine, or market data feed
• Proven low-latency, high-throughput systems
• Direct experience on centralized crypto exchange (CEX) with real order flow/money
• Deep knowledge of trading: order types, margin/perpetuals, funding, liquidations, ADL, maker/taker, fees
• Distributed systems: consistency, idempotency, exactly-once, queues/streams (Kafka/NATS), fault tolerance
• Architecture documentation (ADR, design docs)
• Team leadership: hiring, 1:1s, incident reviews, processes

Nice to have

• DEX infrastructure or hybrid CEX/on-chain models
• Regulatory knowledge: KYC/AML, market surveillance, best execution

Culture & Benefits

• Fully remote from anywhere, flexible hours focused on results
• 28 vacation days + 12 bonus days
• Paid sick leave
• Compensation for courses, certifications, training
• Real ownership of critical exchange infrastructure