Infrastructure Engineer – Security

Milliman

. Engineer, administer, maintain, and continuously improve Milliman’s infrastructure platforms .

Posted 9/21/2026full-timeRemote • United StatesMid-LevelSenior💰 $93,700 - $177,675 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing and securing network infrastructure, including firewalls, VPNs, and Zero Trust Network Access (ZTNA) solutions. Proficient in vulnerability management, system hardening, and implementing security standards across enterprise environments.

Highest-signal resume keywords

Network Infrastructure ManagementFirewall AdministrationVulnerability ManagementZero Trust Network Access (ZTNA)Identity and Access Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network EngineeringSystem AdministrationFirewall Rule ManagementVulnerability RemediationSecure ConfigurationAccess Control SolutionsProxy TechnologiesOperating System HardeningData Center SecurityCloud Security

Soft Skills

Analytical SkillsTroubleshooting SkillsVerbal CommunicationWritten Communication

Tools & Technologies

VPN TechnologiesEDRIDS/IPSSplunkGrafanaLogicMonitorCisco FirewallsCheck Point FirewallsFortinet FirewallsPalo Alto Firewalls

Industry Keywords

Security FrameworksRisk AssessmentAudit Evidence GatheringOperational ProceduresLeast PrivilegeMulti-Factor Authentication (MFA)Privileged Access ControlsRole-Based Access

Tech Stack

Tools & technologies

CloudFirewallsGrafanaLinuxSplunk

About the role

Key responsibilities & impact

Engineer, administer, maintain, and continuously improve Milliman’s infrastructure platforms
Provide guidance and implement system changes within data centers, network architecture, and enterprise platforms
Monitor infrastructure and network systems for misconfigurations
Improve system visibility, support timely remediation, and escalate concerns to appropriate teams
Administer and optimize firewall systems, web gateways, segmentation tools, and remote access technologies
Manage and troubleshoot firewall rule sets, ACLs, and policy changes
Implement and administer secure remote access systems, VPN options, and ZTNA capabilities
Implement vulnerability remediation, system hardening, and secure configuration baselines for operating systems, virtual machines, network devices, and other infrastructure components
Collaborate with GCS IT, GCS IS, practice IT teams, and application owners
Deliver secure-by-default system patterns without blocking delivery
Maintain infrastructure systems and assist with audit evidence gathering
Participate in control validation and risk assessments
Address remediation items and maintain infrastructure documentation related to security standards, system configurations, and operational procedures
Report to the GCS IT Manager of Infrastructure

Requirements

What you’ll need

5+ years of experience in network infrastructure, systems engineering, or a related security-focused role
3+ years of hands-on experience securing enterprise infrastructure, including servers, data centers, firewalls, network controls, identity systems, and cloud-connected environments
Experience with proxy technologies, VPN options, secure remote access, and Zero Trust Network Access (ZTNA) solutions
Experience implementing, administering, troubleshooting, and optimizing firewall ACLs, access control solutions, and network proxy platforms
Experience with vulnerability management and remediation for Windows and/or Linux operating systems
Working knowledge of identity and access management principles, including least privilege, MFA, privileged access controls, and role-based access
Strong analytical, troubleshooting, verbal, and written skills
Ability to translate security risks into practical technical actions
Willingness to travel to data centers
Preferred: experience with system logging, EDR, orchestration and automation, IDS/IPS, and observability platforms such as Splunk, Grafana, or LogicMonitor
Preferred: understanding of security frameworks and standards
Preferred: experience with Cisco, Check Point, Fortinet, and Palo Alto firewalls
Preferred: ability to work evening and weekend hours as needed or directed
Must be legally authorized to work in the United States without current or future immigration support or sponsorship

Benefits

Comp & perks

Medical, Dental and Vision coverage for employees, dependents, and domestic partners
Employee Assistance Program (EAP)
401(k) Plan with company matching and profit-sharing contributions
Discretionary Bonus Program
Flexible Spending Accounts (FSA) for dependent care, transportation, and eligible medical expenses
Paid Time Off (PTO); full-time employees accrue 15 days per year
Minimum of 10 paid holidays per year
Family Building Benefits, including adoption and fertility assistance
11 weeks of paid parental leave for eligible employees
Life Insurance & AD&D with 100% of premiums covered by Milliman
Fully paid short-term and long-term disability
Remote work