Senior Network Engineer

Permanent, full-time

With 5,400+ employees and over 80,000 institutional, commercial, and payments clients, we operate from more than 80 offices spread across six continents. As a Fortune 100, Nasdaq-listed provider, we connect clients to the global markets – focusing on innovation, human connection, and providing world-class products and services to all types of investors.Whether you want to forge a career connecting our retail clients to potential trading opportunities, or ingrain yourself in the world of institutional investing, StoneX Group is made up of four business segments that offer endless potential for progression and growth.

• Design, implement, maintain, and support enterprise LAN, WAN, wireless, SD-WAN, and data center networking environments.
• Support global connectivity across corporate offices, cloud platforms, trading environments, data centers, and third-party providers.
• Provide daily operational support, monitoring, administration, and troubleshooting to maximize network availability and performance.
• Monitor network capacity and performance while proactively identifying opportunities for optimization, resiliency, and improvement.
• Troubleshoot complex network issues using packet captures, logs, telemetry, and network monitoring platforms.
• Perform complex network migrations, upgrades, hardware refreshes, and new technology deployments with minimal business impact.
• Resolve incidents, problems, and change requests in accordance with service-level agreements and approved maintenance windows.
• Participate in major incident response and lead technical troubleshooting efforts when required.
• Produce clear Root Cause Analysis documentation following significant network incidents and outages.

• Lead and execute global network infrastructure projects from planning and design through implementation and operational handoff.
• Design resilient, secure, scalable, and fault-tolerant networking solutions aligned with business growth and technology standards.
• Collaborate with Network Architects, Cloud, Security, Infrastructure, Application, and business teams during project delivery.
• Evaluate emerging technologies and provide recommendations for network standards, roadmaps, and future improvements.
• Provide technical leadership during projects, maintenance activities, and major incidents.
• Mentor junior engineers and contribute to knowledge sharing across the team.
• Build strong working relationships with internal stakeholders, vendors, carriers, and technical partners.

• Support hybrid networking across Microsoft Azure and Amazon Web Services environments.
• Configure and maintain secure connectivity between cloud platforms, data centers, offices, and external partners.
• Support enterprise firewall environments, including Palo Alto Networks technologies.
• Support F5 application delivery and load-balancing platforms.
• Implement and maintain network segmentation, routing policies, VPN connectivity, network access control, and security best practices.
• Work closely with Cyber Security teams to ensure alignment with enterprise security requirements and controls.

• Develop automation to improve operational efficiency using Python, Ansible, Terraform, APIs, or similar tools.
• Reduce repetitive operational tasks through scripting, orchestration, and Infrastructure as Code practices.
• Maintain accurate network documentation, diagrams, standards, procedures, and operational runbooks.
• Ensure network inventories, configuration records, monitoring systems, and internal platforms contain current information.
• Contribute to continuous improvement initiatives across the Global Network Operations organization.
• Research relevant industry trends, standards, and regulatory requirements applicable to the firm.

• Climate-controlled office environment with opportunities for remote collaboration once a week or as determined by company policy.
• Minimal physical requirements other than occasional light lifting and installation or handling of network equipment.
• Dynamic and time-sensitive environment that may require participation in planned maintenance, after-hours changes, and incident response.
• This list of responsibilities is not all-inclusive and may be expanded to include other duties as business needs evolve.

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent professional experience and certifications.
• 8+ years of enterprise network engineering and operational support experience.
• Strong experience supporting large-scale, highly available, and mission-critical global network environments.
• Experience building and managing relationships with senior technical customers and stakeholders.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Strong verbal and written communication skills, including the ability to explain complex technical issues clearly.
• Ability to work independently and collaboratively in a fast-paced, demanding, and globally distributed environment.
• Solid organizational skills, strong work ethic, attention to detail, and accountability for assigned work.

• Extensive experience with BGP, OSPF, MPLS, VRF, QoS, Policy-Based Routing, HSRP, STP, and related enterprise routing and switching technologies.
• Experience supporting Cisco Catalyst and Nexus switching platforms; experience with Arista switching is highly desirable.
• Experience configuring and maintaining Cisco ISE and 802.1X in an enterprise environment.
• Experience supporting enterprise WAN, Internet, point-to-point, carrier, and data center connectivity.
• Desirable experience supporting multicast technologies, including IGMP and PIM.

• 5+ years of experience supporting enterprise firewall platforms, preferably Palo Alto Networks.
• 5+ years of experience supporting F5 BIG-IP load balancers and application delivery services.
• 3+ years of experience supporting cloud networking in Microsoft Azure and/or AWS, including hybrid connectivity.
• Operational experience with SD-WAN solutions, preferably Palo Alto Prisma SD-WAN or similar enterprise platforms.
• Desirable operational experience with Cisco Meraki and enterprise wireless networking.
• Experience with DNS, DHCP, IPAM, VPN technologies, segmentation, and network security controls.

• Experience with Python, Ansible, Terraform, REST APIs, Git, or comparable automation and orchestration technologies.
• Strong proficiency with packet capture and protocol analysis tools.
• Experience with network monitoring, logging, alerting, capacity planning, change management, incident response, and disaster recovery processes.
• Ability to develop professional network diagrams and technical documentation.

• Experience implementing Infrastructure as Code and automated network deployment practices.
• Experience working within a global enterprise and supporting geographically distributed teams.
• Desirable Cisco CCNP/CCIE, Palo Alto Networks PCNSE, Microsoft Azure or AWS networking certification.

• Delivers reliable, scalable, and secure network infrastructure that supports business operations.
• Leads complex technical implementations while minimizing operational risk and business disruption.
• Drives automation and process improvements that increase efficiency and service quality.
• Provides technical leadership, mentorship, and clear communication during projects and incidents.
• Continuously improves network performance, resiliency, security, documentation, and operational processes.

• Hybrid 4 days in office per week (Office location: Avenida Carrera 9A - Avenida Carrera 9A # 115-06/30 Edificio Torre Tierrafirme Bogotá, 110111 Colombia).

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