Job Title: Senior Linux Engineer Job Location: Greenwich Connecticut , Onsite Job Type: Permenant Job Description:

Work as part of an embedded, hyper-focused team on the engineering and support of the firm's strategic order management platform globally Support low-latency co-location environments and a large on-premises and public cloud environment running RHEL8/9 Manage, communicate, and implement infrastructure changes, upgrades, new co-location builds, and migrations across low-latency environments Automate processes to reduce manual work using enterprise and open-source tools Resolve production issues in a timely, effective, and professional manner under pressure Perform hands-on analysis of production systems, fault resolution, growth issues, and root cause analysis for critical issues Work with vendors to implement solutions for clients, both hardware and software-related What's required Excellent knowledge of tuning Linux for low latency, high throughput, and kernel bypass (e.g., Exanic, Solarflare, Mellanox) Experience building co-locations from scratch with in-depth system administration expertise to deliver complete solutions from planning/design to production Strong knowledge of low-latency trading environments with hands-on experience of order management systems from an infrastructure perspective Experience with automation/orchestration tools (e.g., Ansible, Puppet, Chef, Salt, Terraform) Proficiency in scripting languages (e.g., Bash, Python) with hands-on experience creating tools Experience with cloud services and provisioning tools-public (AWS, Azure, GCP) or private (OpenStack, VMware) Experience with monitoring and instrumentation of infrastructure/applications (e.g., Datadog, Prometheus/Grafana) Understanding of market data and/or third-party feed handlers running within a low-latency co-location environment Familiarity with Active Directory and Kerberos Strong troubleshooting, decision-making, and analytical skills to independently solve problems Ability to manage multiple tasks and priorities, identify creative solutions, and effectively collaborate with internal and external contacts Commitment to the highest ethical standards