Principal Network Engineer

About this role

Job Description: Building trusted markets — powered by our people    

At Cboe Global Markets, we inspire our people to solve complex challenges together because what we do matters. We provide   the financial   infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers   cutting-edge   trading, clearing and investment solutions to market participants around the world.   

We’re   building meaningful ways to support professional and personal development while strengthening the trust   we’ve   earned as a global market leader. Our teams are empowered to share ideas, actively pursue   them   and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to “go for it” and equip our managers with the training to coach their teams to the next level. We strive to   provide   employees   a safe space to network, share   ideas   and create opportunities.    

To support strong partnership and team connection, this role follows a four day in office work model.  

Location Overview  

Cboe HQ   is   located in   the historic Old Post Office   district,   i t’ s a landmark that blends classic architecture with modern amenities. The building features expansive spaces with   high ceilings   and large windows, offering an abundance of natural light and panoramic views of the   city   skyline and the Chicago River.  

With its prime location in the heart of downtown, the OPO Building provides easy access to major transportation hubs, including Union Station and multiple CTA lines, making it convenient for commuters. The building is home to a variety of amenities, including restaurants,   a   fitness center, and collaborative workspaces, creating a vibrant and dynamic work environment in one of Chicago's most iconic areas.  

Role Overview  

Cboe Global Markets is seeking a Principal Network Engineer to serve as a deep technical anchor for our global network infrastructure. This role  is responsible for  shaping the design, scalability, and long-term evolution of highly distributed, latency-sensitive trading networks across on-prem and cloud environments. The Principal Engineer brings expert-level knowledge of deterministic packet  forwarding , advanced routing design, and ultra-low latency architecture, combined with the ability to  operate  independently and own complex problems end-to-end.   

This individual partners closely with Network Engineering leadership and cross-functional architecture teams to lead high-complexity initiatives, conduct rigorous pre-implementation testing and validation, and  establish  best practices that drive consistency and reliability across the environment. They function as a technical leader without formal authority—mentoring senior engineers, influencing design decisions, and raising the overall engineering bar across the organization.   

Success in this role requires both deep technical  expertise  and  strong communication  skills. The Principal Engineer must be able to translate complex architectural decisions, trade-offs, and risks into clear, actionable insights for both engineering teams and senior leadership. The ideal candidate holds (or is actively pursuing) a CCIE certification, writes production-quality Python, and is comfortable working with modern observability platforms such as Prometheus and Grafana to drive data-informed engineering decisions.   

Your responsibilities will be:  

• Design and evolve low-latency, highly resilient network architecture across global data center, co-location, and cloud-connected environments, with a focus on deterministic packet  forwarding , scalability, and operational consistency    

• Lead advanced routing design and implementation across complex global environments, including BGP, OSPF, MPLS, multicast, hybrid cloud connectivity, traffic engineering, and high-availability network patterns    

• Conduct deep technical research, lab validation, and pre-implementation testing for major network initiatives, working closely with engineering and software development teams to evaluate hardware capabilities,  identify  design constraints, and optimize exchange performance based on findings    

• Lead high-complexity strategic projects from design through execution, producing detailed technical designs, migration runbooks, capacity plans, and implementation guidance for large-scale network changes    

• Develop and  maintain  Python-based network automation to support configuration management, change validation, testing, and operational efficiency, with direct experience using both API-driven and SSH-based automation approaches    

• Partner across infrastructure, security, application, and business teams to align network design and delivery with technical requirements, operational goals, and broader organizational priorities, including support for budgeting and planning related to network hardware and software investments    

• Serve as a senior technical leader and mentor across the engineering organization, driving architecture reviews, design standards, knowledge sharing, and technical development for other engineers    

• Operate effectively in a fast-moving, dynamic environment where priorities can shift, balancing long-term architectural direction with immediate engineering and operational needs    

• Contribute to monitoring and telemetry strategy by helping define meaningful visibility requirements and supporting the use of tools such as Prometheus, Grafana, or similar platforms where they improve operational insight and troubleshooting    

• Support the development of technical standards, design documentation, and regulatory or audit-facing materials when needed, including documentation that may be used to support SEC or other regulatory review processes   

The ideal candidate has  

• 10+ years of hands-on network engineering experience in m

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