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Senior IT Security Engineer

First Horizon National Corporation

Memphis, TN

Full-Time

Senior IT Security Engineer

First Horizon National Corporation

Memphis, TN

Full-Time

Mar 28, 2025

Information Technology

Job Description

Location: On site in Memphis, TN, Maryville, TN, Birmingham, AL, Lafayette, LA, New Orleans, LA, Charlotte, NC, Raleigh, NC, or Dallas, TX

We will not provide sponsorship for this role.

Job Summary:
The Senior IT Security Engineer will be responsible for protecting the company’s information systems from internal and external threats. This person will support the IT Security Engineering Manager to ensure proper security functions are maintained to protect company and customer data. This position enables the company to meet its business objectives by increasing the security of the company’s Hybrid Network while lowering the risk of misuse of information and denial of service.
Essential Duties and Responsibilities:

Design, implement and manage network security infrastructure (firewalls, IDS/IPS, load balancers, web proxies, etc.)

Design, implement and manage cloud security solutions

Work with vendors concerning security and network access requirements. Implement appropriate network access and ensure network security.

Assess current and proposed network designs and proactively makes recommendations based on business requirements and security best practices.

Conduct periodic audits of new and existing implementations to ensure compliance with corporate security standards.

Develop technical solutions and execute measures to help mitigate security vulnerabilities and automate repeatable tasks.

Education and/or Work Experience Requirements:

Bachelor’s degree in computer science, information systems, cyber security or a related field preferred but not required

Active Information Security certifications (CISSP, SANS GIAC, etc.) preferred

5+ years of experience in cyber security / information security with emphasis on cloud and on-premises network security infrastructure in a high availability, high-capacity environment.

Hands on experience in information security systems, including firewalls, intrusion detection/prevention systems, authentication systems, log management, web proxy / content filtering, Security Service Edge, etc.

Extensive cloud security experience, especially focused on Microsoft Azure.

Knowledge of infrastructure as code (IAC) tools like Terraform, Crossplane and Azure Resource Manager.

Familiarity with containerization technologies (e.g., Docker, Kubernetes, Azure Container Instances).

Advanced knowledge of cloud and on-premises network security standards/best practices, design, and implementation.

Problem solving skills and ability to work under pressure

Excellent communication skills both oral and written to clearly communicate with business partners and management.

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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Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

Location: On site in Memphis, TN, Maryville, TN, Birmingham, AL, Lafayette, LA, New Orleans, LA, Charlotte, NC, Raleigh, NC, or Dallas, TX
We will not provide sponsorship for this role.

Job Summary:
The Senior IT Security Engineer will be responsible for protecting the company’s information systems from internal and external threats. This person will support the IT Security Engineering Manager to ensure proper security functions are maintained to protect company and customer data. This position enables the company to meet its business objectives by increasing the security of the company’s Hybrid Network while lowering the risk of misuse of information and denial of service.
Essential Duties and Responsibilities:

Design, implement and manage network security infrastructure (firewalls, IDS/IPS, load balancers, web proxies, etc.)

Design, implement and manage cloud security solutions

Work with vendors concerning security and network access requirements. Implement appropriate network access and ensure network security.

Assess current and proposed network designs and proactively makes recommendations based on business requirements and security best practices.

Conduct periodic audits of new and existing implementations to ensure compliance with corporate security standards.

Develop technical solutions and execute measures to help mitigate security vulnerabilities and automate repeatable tasks.

Education and/or Work Experience Requirements:

Bachelor’s degree in computer science, information systems, cyber security or a related field preferred but not required

Active Information Security certifications (CISSP, SANS GIAC, etc.) preferred

5+ years of experience in cyber security / information security with emphasis on cloud and on-premises network security infrastructure in a high availability, high-capacity environment.

Hands on experience in information security systems, including firewalls, intrusion detection/prevention systems, authentication systems, log management, web proxy / content filtering, Security Service Edge, etc.

Extensive cloud security experience, especially focused on Microsoft Azure.

Knowledge of infrastructure as code (IAC) tools like Terraform, Crossplane and Azure Resource Manager.

Familiarity with containerization technologies (e.g., Docker, Kubernetes, Azure Container Instances).

Advanced knowledge of cloud and on-premises network security standards/best practices, design, and implementation.

Problem solving skills and ability to work under pressure

Excellent communication skills both oral and written to clearly communicate with business partners and management.

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

Follow Us
Facebook
X formerly Twitter
LinkedIn
Instagram
YouTube
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

About First Horizon National Corporation

First Horizon is a leading regional financial services company, dedicated to helping our clients, communities and associates unlock their full potential with capital and counsel. With $81.7 billion in assets as of December 31, 2023, we serve clients through a team of approximately ~7,300 associates and ~418 banking centers throughout the southeastern United States. Headquartered in Memphis, TN, the banking subsidiary First Horizon Bank operates in 12 states across the southern U.S. 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.

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Senior IT Security Engineer

First Horizon National Corporation

Memphis, TN

Mar 28, 2025

Full-time

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