Trading Platform Engineer

As a Trading Platform Engineer at Caladan, you keep the systems that carry orders to market fast, observable and dependable. You build the tooling the trading platform runs on, own the latency path end to end, and work alongside the desk as the first line of response when production issues arise.

What you'll do

• Develop new features and improvements for the trading platform tools
• Build the monitoring layer for essential trading services, from health dashboards to alerting on time-critical paths
• Provide support during production incidents: verify compute, connectivity, and market data, revert to last known good configuration, triage and escalate to service owners where needed, and fix trading platform tooling directly
• Own routine maintenance of essential services including version rollouts and configuration changes, and build the tooling that automates it
• Tune the end-to-end latency path, including kernel-bypass networking
• Establish and maintain latency baselines so regressions are surfaced by monitoring before they reach the desk
• Participate in an on-call rota shared across the team

What you bring

• Experience building or supporting low-latency trading infrastructure in a Linux environment at a prop trading firm, hedge fund, exchange or crypto trading firm
• Hands-on performance tuning below the application layer: kernel bypass (DPDK or similar), NUMA and CPU affinity, network stack and buffer sizing
• Strong automation and scripting skills in Python, Bash or Go, and comfort working with modern Python or C# codebases
• Experience with observability and alerting tooling such as Prometheus or Grafana, and a considered approach to alert design
• Calm and methodical under production pressure, able to own an incident and escalate clearly
• Treat documentation and reproducibility as part of the work

About Caladan

Caladan brings rationality to markets, exploring the frontier of finance and making markets more efficient. Since 2017, the company has been a pioneer in crypto market-making, powering over $170B in annual transactions across 1000+ assets, and supports exchanges, tokens, and institutional investors with on-exchange liquidity, DeFi expertise, treasury solutions, and investments.