Systems Software Engineer

About the role

As a Systems Software Engineer on our Network Capture Services team, you will help build and operate the firm's network packet capture platform. The data our capture systems produce is relied on daily by trading, research, and support teams, and they treat it as mission critical. You will work alongside experienced software and systems engineers who share operational responsibility for everything we ship. This role is broader than a typical systems software engineering role: you will write software (C++, Python, Rust, Ruby) and spend a significant share of your time on systems and infrastructure work—specifying, building, and deploying capture servers, automating that process with Ansible, and coordinating with our data center, systems administration, network engineering, and purchasing teams. You will take a regular turn on the team's weekly production support rotation, and there is steady feature development work alongside it. If you want a role with real breadth, genuine ownership of what you deploy, and you like to be challenged, this is for you.

Responsibilities

• Design, build, deploy, and validate network capture servers, and drive that work to completion across every team involved
• Develop and maintain capture and query software (C++, Python, Rust, Ruby) with a constant focus on testing, reliability, and performance
• Build the Ansible automation, configuration management, and deployment tooling that makes capture server provisioning repeatable rather than manual
• Take a regular turn on the team's weekly production support rotation: troubleshoot live capture issues, coordinate incident response, and monitor proactively to catch problems before users do
• Improve automation, monitoring, and capacity planning, and see your own proposals through to production
• Onboard new capture deployments in partnership with stakeholder teams that depend on them
• Serve as a liaison between Network Capture Services and the infrastructure teams we work with

Requirements

• 3+ years of professional systems software engineering experience
• Strong skills in a systems language such as Rust, C/C++, or Go, and a genuine willingness to make C++ your primary language (Ruby and Rust experience are both a plus)
• Experience with DPDK or comparable kernel-bypass packet processing, including concepts like hugepages, CPU pinning and core isolation, NUMA awareness, and poll-mode drivers
• Strong Linux skills, including administration and troubleshooting of production servers (RHEL-family experience is a plus, as is a background as a Linux administrator or network engineer)
• Solid networking fundamentals: TCP/IP, routing, switching, NICs, packet analysis
• Hands-on experience with server hardware and data center workflows—specifying and validating builds, working through remote hands, rack and cabling coordination, firmware and BIOS, out-of-band management
• Experience with Ansible or a comparable configuration management tool
• Comfort and effectiveness coordinating work across infrastructure teams you do not sit on, and patience for the follow-through that requires
• Experience with Git, CI/CD pipelines, and package management (Kubernetes and GitOps tooling such as Flux or Helm are a plus)
• Strong scripting skills in Bash, Python, Ruby, or similar
• A habit of working on systems with a constant focus on testing, reliability, scalability, and maintainability
• Excellent written and verbal communication skills
• Availability for the weekly production support rotation, which includes some off-hours, nights, and weekends; composure in occasional high-pressure situations; and a strong sense of urgency in support of internal clients

Preferred Qualifications

• Experience with commercial network capture products
• Performance analysis tooling experience (perf, eBPF, flamegraphs, tcpdump) and contributions to the DPDK ecosystem beyond application-level use
• Familiarity with service discovery, secrets management, metrics and dashboarding, and relational databases

Benefits

• Group medical, pharmacy, dental, and vision insurance
• 401k with discretionary employer match
• Short and long-term disability insurance
• Life and AD&D insurance
• Health savings accounts and flexible spending accounts

Pay

Annual base salary range: $145,000 to $185,000 depending on experience, qualifications, and relevant skill set. The position is also eligible for an annual discretionary bonus.