Senior Network Engineer

Reference: 25880Location: Chicago, IL, United StatesIndustry: Trading FirmPosted: 2026-04-28Contact: Ethan HudsonEmail: View email address on click.appcast.io: 13176505687Senior Network EngineerLocation: Chicago, IL (Hybrid/On-site)About the Opportunity We are seeking a high-caliber Network Engineer to spearhead the design, implementation, and optimization of a high-performance, global networking infrastructure. This role is pivotal in maintaining a low-latency environment for sophisticated proprietary trading systems, offering the chance to drive technical innovation through advanced automation and next-generation architectural prototyping. If you are a self-directed engineer with a passion for building resilient, high-speed systems in the financial sector, this is a premier opportunity to own complex technical solutions from conception to deployment.ResponsibilitiesGlobal Infrastructure Management: Oversee the continuous operation and enhancement of diverse, multi-site network environments, ensuring maximum uptime and strategic capacity expansion.Architecture & Innovation: Serve as a technical authority in designing future-state network frameworks, focusing on reliability and cutting-edge performance.Performance Engineering: Conduct rigorous benchmarking, lab testing, and capacity modeling to minimize latency and ensure seamless scalability across the global fabric.Complex Problem Solving: Lead the diagnosis and remediation of intricate connectivity and performance bottlenecks using creative technical strategies and collaborative troubleshooting.Automation & Tooling: Develop and deploy custom automated solutions for network provisioning, diagnostic monitoring, and rapid infrastructure deployment.Vendor Relations: Partner with hardware and service providers to evaluate emerging technologies and prototype new designs for competitive advantage.Requirements (Must-have)Professional Experience: At least 7 years of dedicated experience in network engineering, with a proven track record in low-latency or high-frequency environments.Hardware Expertise: Comprehensive experience designing and deploying enterprise-grade routers, switches, and security appliances.Protocol Mastery: Expert-level proficiency in tuning dynamic routing protocols and managing complex multicast environments.Modern Fabric Networking: Hands-on experience with EVPN-VXLAN architectures for building robust overlay and underlay networks.Security & Edge: Solid background in managing VPN infrastructure, firewalls, and public-facing internet connectivity.Analytical Depth: Deep understanding of the TCP/IP stack with the ability to perform packet-level analysis using industry-standard diagnostic tools.DevOps Mindset: Advanced scripting and automation skills, specifically utilizing Python and Ansible to manage infrastructure as code.Preferred Qualifications (Nice-to-have)Domain Expertise: Direct experience within the financial services or electronic trading sectors.Physical Layer Knowledge: Exposure to Layer 1 device management and a conceptual understanding of RF network fundamentals.Compensation & BenefitsCompetitive base salary and performance-based incentives.Comprehensive healthcare, retirement planning, and professional development support.We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, ethnic origin, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.OP Recruiting, a member of the Objective Partners family of specialized talent solution providers, uses AI-assisted tools, including Alex by Apriora, to support our recruiting process. These tools may review application materials and analyze interview responses to provide insights about a candidate's experience and qualifications. AI output informs our recruiters; decisions about whether to advance or present a candidate are made by people. Learn more about our use of AI, including how to request an accommodation: .#LI-KH1