Zero Trust Engineer, Microsegmentation

S&P Global

. Architect and enforce enterprise-wide micro-segmentation policies across applications, servers, workloads, and cloud environments .

Posted 10/25/2026full-timeUnited StatesMid-LevelSenior💰 $150,000 - $190,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in micro-segmentation, network security, and cloud networking, with a strong focus on implementing Zero Trust architectures and automating security policies. Proven ability to analyze application dependencies and enforce enterprise-wide security measures across diverse environments.

Highest-signal resume keywords

Micro-Segmentation ImplementationNetwork Security EngineeringZero Trust ArchitectureTraffic-Flow AnalysisFirewall Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

TCP/IPDNSDHCPRoutingSwitchingVLANsNATLoad BalancingAccess-Control PoliciesApplication Dependency Mapping

Tools & Technologies

Akamai Guardicore SegmentationIllumioZscalerAWSAzureGCPKubernetesTerraformAnsiblePython

Certifications & Qualifications

CCNPCISSPCompTIA Security+PCNSEAWS Security SpecialtyMicrosoft AZ-500

Industry Keywords

Network EngineeringCybersecurityInfrastructure EngineeringEnterprise Firewall ManagementSIEM PlatformsNetwork Detection ToolsVulnerability ManagementCloud AdoptionData-Center TransformationsOperational Resilience

Tech Stack

Tools & technologies

AnsibleAWSAzureCloudCyber SecurityDNSGoogle Cloud PlatformKubernetesPythonSwitchingTCP/IPTerraform

About the role

Key responsibilities & impact

Architect and enforce enterprise-wide micro-segmentation policies across applications, servers, workloads, and cloud environments
Map and validate end-to-end application communication flows, including dependencies, ports, protocols, and authentication requirements
Translate communication requirements into firewall rules, ACLs, and ZTNA controls
Perform traffic-flow analysis using network telemetry, NetFlow, packet captures, and application dependency mapping
Validate segmentation outcomes before and after changes
Lead remediation and incident response for overly permissive connectivity gaps
Approve network change requests and contribute during major incidents
Automate and scale segmentation policy deployment, compliance reporting, and validation
Build and maintain a Micro-Segmentation framework with quality controls, change-management rigor, and operational resilience
Partner on cloud adoption, data-center transformations, and modernization initiatives
Develop documentation standards, labeling strategies, and segmentation procedures governing enterprise network security

Requirements

What you’ll need

5+ years of experience in network engineering, network security, cybersecurity, or infrastructure engineering
Expertise in TCP/IP, DNS, DHCP, routing, switching, VLANs, NAT, load balancing, and enterprise firewall management
2+ years of hands-on implementation of micro-segmentation, network segmentation, or Zero Trust architectures in enterprise environments
Ability to analyze application dependencies and translate port, protocol, and authentication requirements into firewall rules, ACLs, or equivalent access-control policies
Preferred: hands-on experience with Akamai Guardicore Segmentation, Illumio, or Zscaler
Preferred: experience with AWS, Azure, or GCP cloud networking and security controls
Preferred: experience with Kubernetes/container networking and workload segmentation
Preferred: security policy automation using Terraform, Ansible, Python, or PowerShell
Preferred: experience architecting and delivering enterprise-scale ZTNA solutions
Preferred: experience with SIEM platforms, network detection tools, and vulnerability management solutions
Preferred: active certification in CCNP, CISSP, CompTIA Security+, PCNSE, AWS Security Specialty, or Microsoft AZ-500

Benefits

Comp & perks

Health care coverage
Generous time off
Continuous learning and career development resources
Retirement planning
Continuing education program with company-matched student loan contribution
Financial wellness programs
Family-friendly benefits and perks
Retail discounts
Referral incentive awards