Sr. Cloud Network Engineer

JLL•Chicago, IL

1d•Remote

About The Position

Jones Lang LaSalle, an international commercial real estate firm, is seeking a skilled and motivated cloud network engineer with expertise in traditional networking, cloud networking technologies, and modern segmentation platforms such as Illumio and Guardicore. The successful candidate will oversee the delivery of network architecture and implementations to our clients, ensuring exceptional quality and customer satisfaction. This role includes responsibility for firewall and network security engineering, micro-segmentation design and operations, and support across on-prem and cloud environments. The ideal candidate will have a strong background in firewall design, cloud networking, segmentation technologies, and both on-prem and cloud-based network security solutions.

Requirements

Bachelor’s degree in Computer Science, IT, Engineering, or related field.
Minimum 5 years experience in network architecture or design, with a global infrastructure focus.
Experience with micro-segmentation tools ( Illumio, Guardicore ) including policy creation, enforcement, and application dependency mapping.
Strong understanding of Firewalls, segmentation frameworks, WAN, SD-WAN, network protocols, subnetting, VPNs, QoS, and zero-trust concepts.
Experience with cloud network architecture (AWS, Azure, GCP).
Expertise in network hardware (Cisco, Palo Alto, etc.) and segmentation agents.
Experience operating at enterprise scale across WAN, LAN, Data Center, Cloud, and segmented environments.
Ability to participate in 24x7 on-call rotation.
Strong knowledge of network security best practices and segmentation strategies.
Excellent communication skills and ability to work in a global team.
8+ years of hands-on networking and network security support.
Hands-on experience with Palo Alto firewalls, Panorama, and security profiles.
Experience with Illumio segmentation , Guardicore segmentation , or equivalent platforms.
Cloud networking experience with AWS and Azure, including routing, firewalling, and segmentation.
Ability to resolve complex customer and network/segmentation issues.
Strong understanding of infrastructure, firewall engineering, segmentation design, and security architecture.
Strong troubleshooting skills for Palo Alto and segmentation agents.
Experience implementing global network and segmentation solutions.
Experience deploying firewalls and segmentation in cloud, data center, and edge environments.
Knowledge of ITIL processes and change management.
Strong decision-making and operational leadership skills.
Proven track record of global network designs, firewall/security implementations, and segmentation projects.
Self-starter with ability to work independently or collaboratively.

Responsibilities

Hands-on experience with cloud networking, Palo Alto firewalls in Azure & AWS, and segmentation platforms such as Illumio Core/Cloud and Guardicore (Akamai Segmentation).
Implement and maintain micro-segmentation policies, including application dependency mapping, rule-set creation, and enforcement across hybrid workloads.
Experience designing and supporting segmentation architectures to enhance security posture and reduce lateral movement risks.
Strong understanding of zero-trust network segmentation principles and how they apply to enterprise network security.
Extensive experience implementing and maintaining firewalls and staying updated on newly released security vulnerabilities and their impact on the network.
Perform ongoing optimization of network security devices and segmentation platforms to ensure adequate capacity, availability, and scalability.
Implement, troubleshoot, and document network security infrastructures and segmentation deployments, including policy testing, traffic flows, and enforcement validation.
Expertise in modifying firewall rule sets, segmentation rules, changing security policies, whitelisting, content filtering, and troubleshooting traffic flows across firewalls, segmentation tools, routers, and switches.
Strong knowledge of Layer 4–7 app-aware firewalls and micro-segmentation traffic policies.
Establish and modify site-to-site VPNs and secure connectivity paths for segmented workloads.
Manage threat protection, URL blocking, IOC feeds, routers, switches, segmentation policies, and endpoint enforcement controls.
Periodically monitor firewall and segmentation agent health, performance, and capacity across global environments.
Participate in Change Management processes, including creating change requests, performing peer reviews, validating segmentation change impact, and executing firewall or segmentation modifications.
Develop detailed build and test plans for implementing firewalls and segmentation deployments.
Coordinate with IT teams to ensure standardized network and segmentation configurations, control frameworks, and enforcement practices.
Recommend enhancements to improve network reliability, segmentation accuracy, security posture, and operational performance.
Collaborate globally with IT teams—security, cloud, data center, and application teams—to resolve issues and ensure network/segmentation alignment.
Define reusable network and micro-segmentation patterns for branch, data center, and cloud environments.
Document segmentation deployments, firewall standards, policy frameworks, and configuration baselines.
Experience with network automation tools such as Ansible, Terraform, Python (e.g., automating policy pushes, firewall rules, segmentation updates).
Wireless network design, support, and troubleshooting.
Understanding of TCP/IP Stack, AD, DNS, DHCP, Routing (BGP, OSPF, VXLAN), and east-west traffic considerations for segmentation.
Participate in disaster recovery exercises, including validating segmented application recovery paths and connectivity requirements.
Resolve escalations for complex technical problems involving firewalls, segmentation agents, cloud networking, and hybrid routing.
Participate in incident management and problem resolution for global network and segmentation issues.
Design and implement cloud network architectures using best practices, incorporating segmentation and zero-trust principles.