Systems Architect

First Horizon Corp.Memphis, TN

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Overview

Schedule

Full-time

Career level

Senior-level

Remote

On-site

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Job Description

Location: Onsite in Memphis, TN or New Orleans, LA

No sponsorship will be provided for this role.

The Systems Architect leads the design, governance, and end‑to‑end delivery of Microsoft 365 services-ensuring reliability, security, compliance, and great associate experiences in a regulated environment.

Weekly Scheduled Hours: Monday-Friday 9am- 5pm

Key Responsibilities

Own enterprise architecture for Microsoft 365: Exchange Online, SharePoint Online, OneDrive, Teams, Entra ID (Azure AD), Intune/Endpoint Manager, and Microsoft Purview/Compliance.

Define standards, reference architectures, and roadmaps for identity, messaging, collaboration, and device management across hybrid/on‑prem and cloud environments.

Lead migrations and modernization (e.g., Exchange/SharePoint to Online), tenant‑to‑tenant moves, and hybrid identity (AD DS + Entra ID) integrations.

Implement Zero Trust controls: Conditional Access, MFA, RBAC/PIM, DLP, sensitivity labels, retention, eDiscovery, audit and alerting, and secure sharing policies.

Establish Microsoft 365 governance: tenant configuration baselines, change management, environment segmentation, lifecycle management, and license optimization.

Automate operations with PowerShell and Microsoft Graph; build runbooks, deployment pipelines, and monitoring dashboards for reliability and performance.

Integrate Microsoft 365 with enterprise platforms (e.g., SIEM/Sentinel, email security gateways, eDiscovery/archiving, ITSM/ServiceNow) and key third parties.

Partner with Information Security, Risk, Legal/Compliance, Network, End User Computing, and Vendor Management to meet regulatory expectations (e.g., GLBA/FFIEC) and protect client information.

Design and test business continuity/disaster recovery for collaboration and messaging services; lead major incident response and post‑mortems.

Provide Level 3/architecture‑level guidance, mentor engineers, and produce high‑quality documentation (diagrams, standards, runbooks).

Qualifications

7+ years in enterprise IT, including 3-5+ years architecting Microsoft 365/Entra ID in mid‑to‑large organizations.

Expert knowledge of Exchange Online, Teams, SharePoint Online/OneDrive, Entra ID, Intune/Endpoint Manager, and Microsoft Purview/Compliance features.

Strong identity and access background: SSO/Federation, SAML/OAuth/OIDC, Conditional Access/MFA, RBAC/PIM, and hybrid AD.

Security/compliance experience in regulated environments: DLP, retention/eDiscovery, audit, data classification/sensitivity labels, and secure external collaboration.

Proficiency in PowerShell and Microsoft Graph; proven automation of tenant configuration, license management, and operational tasks.

Working knowledge of networking and email fundamentals: DNS, SMTP, TLS, proxy/firewall considerations for Microsoft 365 endpoints.

Excellent communication and stakeholder engagement skills; able to translate complex designs into clear guidance for associates and leaders.

Bachelor's degree in Computer Science, Information Systems, or equivalent experience.

Preferred

Experience with Teams Phone/voice, Microsoft Defender for Office 365, Sentinel/SIEM integrations, and Power Platform governance.

Background in financial services or other highly regulated industries.

Certifications: Microsoft 365 Certified: Enterprise Administrator Expert (MS‑102), Azure Solutions Architect Expert (AZ‑305)

About Us

First Horizon Corporation is a leading regional financial services company, dedicated to helping our clients, communities and associates unlock their full potential with capital and counsel. Headquartered in Memphis, TN, the banking subsidiary First Horizon Bank operates in 12 states across the southern U.S. The Company and its subsidiaries offer commercial, private banking, consumer, small business, wealth and trust management, retail brokerage, capital markets, fixed income, and mortgage banking services. First Horizon has been recognized as one of the nation's best employers by Fortune and Forbes magazines and a Top 10 Most Reputable U.S. Bank. More information is available at www.FirstHorizon.com.

Benefit Highlights

Medical with wellness incentives, dental, and vision
HSA with company match
Maternity and parental leave
Tuition reimbursement
Mentor program
401(k) with 6% match
More -- FirstHorizon.com/First-Horizon-National-Corporation/Careers/Our-Benefits

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FAQs About Systems Architect Jobs at First Horizon Corp.

What is the work location for this position at First Horizon Corp.?

This job at First Horizon Corp. is located in Memphis, TN, according to the details provided by the employer. Some roles may also include multiple work locations depending on the requirement.

What pay range can candidates expect for this role at First Horizon Corp.?

Employer has not shared pay details for this role.

What employment applies to this position at First Horizon Corp.?

First Horizon Corp. lists this role as a Full-time position.

What experience level is required for this role at First Horizon Corp.?

First Horizon Corp. is looking for a candidate with "Senior-level" experience level.

What is the process to apply for this position at First Horizon Corp.?

You can apply for this role at First Horizon Corp. either through Sonara's automated application system, which helps you submit applications 10X faster with minimal effort, or by applying manually using the direct link on the job page.