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DRW is a diversified trading firm headquartered in Chicago that operates across multiple asset classes and markets globally. As a Systems Software Engineer on the Network Capture Services team, you will design, build, deploy, and operate the firm's mission-critical network packet capture platform, combining software development (C++, Python, Rust, Ruby) with systems infrastructure work including server deployment, automation, and data center coordination. What You'll Do • Design, build, deploy, and validate network capture servers, driving work to completion across all involved teams • Develop and maintain capture and query software in C++, Python, Rust, and Ruby with focus on testing, reliability, and performance • Build Ansible automation, configuration management, and deployment tooling for repeatable capture server provisioning • Participate in weekly production support rotation: troubleshooting live issues, coordinating incident response, and proactive monitoring • Improve automation, monitoring, and capacity planning; serve as liaison between Network Capture Services and infrastructure teams What You Need • 3+ years of professional systems software engineering experience • Strong skills in a systems language (Rust, C/C++, or Go) with willingness to make C++ your primary language • Experience with DPDK or comparable kernel-bypass packet processing (hugepages, CPU pinning, NUMA awareness, poll-mode drivers) • Strong Linux skills including administration and troubleshooting of production servers • Solid networking fundamentals (TCP/IP, routing, switching, NICs, packet analysis) • Hands-on experience with server hardware and data center workflows (specifying builds, remote hands, rack/cabling, firmware, BIOS, out-of-band management) • Experience with Ansible or comparable configuration management tool • Comfort coordinating work across infrastructure teams and strong follow-through capability • Experience with Git, CI/CD pipelines, and package management • Strong scripting skills in Bash, Python, Ruby, or similar • Habit of working on systems with constant focus on testing, reliability, scalability, and maintainability • Excellent written and verbal communication skills • Availability for weekly production support rotation including off-hours, nights, weekends, and ability to handle high-pressure situations Nice to Have • Ruby and Rust experience • RHEL-family Linux experience or background as a Linux administrator or network engineer • Kubernetes and GitOps tooling such as Flux or Helm • Commercial network capture products experience • Performance analysis tooling experience (perf, eBPF, flamegraphs, tcpdump) • Contributions to the DPDK ecosystem • Service discovery, secrets management, metrics and dashboarding, and relational databases familiarity Annual base salary $145,000–$185,000 depending on experience, qualifications, and skill set; eligible for annual discretionary bonus; comprehensive benefits including group medical, pharmacy, dental and vision insurance, 401k with discretionary employer match, short and long-term disability, life and AD&D insurance, health savings accounts, and flexible spending accounts