System Engineer

Exegy is a global leader in intelligent market data and advanced trading systems. This role is a System Engineer on the Managed Services Engineering team, responsible for designing and maintaining Linux infrastructure, bare-metal provisioning, and automation that converts bare-metal servers into production-ready platforms.

* Design, maintain, and evolve automated OS provisioning workflows including network boot environments, live boot images, and unattended Linux installations * Build and maintain Puppet and Ansible automation frameworks with custom modules, manifests, data hierarchies, and backend data stores * Develop and support Python and Bash applications for preboot staging, hardware discovery, and automated hardware validation * Administer and troubleshoot Linux network services including dynamic routing, VPN, proxy services, and SSL/TLS certificate lifecycle management * Act as escalation point for deployment and support teams on provisioning failures, hardware mismatches, and complex Linux networking issues

* 5+ years of senior-level systems engineering experience on RHEL and Rocky Linux 9/10 * Hands-on experience with Puppet (modules, manifests, Hiera, Facter, Ruby) and Ansible * Practical bare-metal provisioning experience with PXE/iPXE, live boot image generation (dracut/initramfs), unattended installers (Anaconda/Kickstart), and tools such as Razor or Foreman * Proficiency in Python and Bash for systems automation, CLI tooling, REST API integration, and structured data formats (JSON, YAML) * Deep knowledge of Linux networking including IP networking, NIC bonding, VLANs, multiple routing tables, policy-based routing, firewalling (iptables/nftables), and packet analysis (tcpdump) * Experience with OpenVPN, SSL/TLS certificates (OpenSSL/PKI), proxy services (Squid), and routing daemons (BIRD) * Strong Linux troubleshooting skills with systemd, dnf/yum/rpm, storage, filesystems, and diagnostic tools (journalctl, strace, lsof, ss, dmesg) * Familiarity with enterprise server hardware (Dell, Intel, AMD), BOM verification, and lights-out management (iDRAC, IPMI, RACADM, Redfish) * Experience with NoSQL and relational databases (CouchDB, PostgreSQL) for infrastructure and configuration data * Proficiency with Git, technical documentation, and cross-team communication