Senior Platform Engineer - Hybrid Cloud & Automation

Guaranteed Rate, Inc.

Chicago (IL)

Hybrid

USD 125,000 - 145,000

Full time

14 days+

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Benefits offered by this job

401(k) plan

Vacation/PTO

Medical, dental, vision coverage

Flexible benefits

Life insurance

Identity protection

Job summary

Guaranteed Rate, Inc. is seeking a Senior Systems Engineer to own enterprise infrastructure across on‑premises and cloud environments.

You will design, automate, secure, and operate highly available systems, leading complex troubleshooting and turning recurring work into automated solutions. Responsibilities include designing resilient infrastructure, automating with PowerShell, and maintaining security postures.

Qualifications

5+ years of progressive, hands-on systems engineering or infrastructure administration experience in a medium-to-large enterprise.
Strong experience administering Windows Server, Active Directory, Group Policy, DNS, DHCP, and enterprise authentication and authorization services.
Hands-on experience with Microsoft365, MicrosoftEntraID, and Exchange Online or Exchange Hybrid administration.
Experience with at least one public cloud platform (Azure preferred; AWS also valued) including hybrid-cloud connectivity and operations.
Strong PowerShell skills, including reusable functions, structured error handling, logging, and secure credential handling.
Experience with VMware vSphere, Hyper-V, or comparable virtualization platforms and server, storage, backup, and recovery technologies.
Working knowledge of TCP/IP, routing fundamentals, firewalls, load balancers, certificates, proxies, and other infrastructure dependencies.
Knowledge of enterprise security practices (least privilege, patch and vulnerability management, secure baselines, audit logging, change control).
Proven ability to diagnose complex incidents, coordinate recovery, document root causes and deliver corrective actions.
Clear written and verbal communication, strong operational judgment, and ability to manage multiple priorities.

Responsibilities

Design, implement and support resilient enterprise infrastructure across Windows Server, Active Directory, Group Policy, DNS, DHCP, PKI, virtualization, compute, storage, and related platform services.
Engineer and operate Microsoft365 and hybrid identity and messaging services; lead technical discovery, solution design, implementation, testing, deployment, and operational handoff.
Develop standards, reference architectures, lifecycle plans, capacity forecasts, and technical‑debt roadmaps.
Develop production‑quality automation with PowerShell and Python; apply infrastructure‑as‑code and configuration‑management principles; build validation, logging, audit trails, error handling, retry logic, safe rollback.
Monitor service health, performance, capacity, configuration drift, and security posture; lead incident response; implement least privileged access controls; design backup, restore, disaster recovery, and business continuity capabilities.
Maintain architecture diagrams, standards, configuration records, knowledge articles, operational procedures; create ServiceNow and Jira records; mentor engineers; collaborate with teams, vendors, MSPs, and stakeholders.