Security Engineer

F5 Networks, Inc.; United States; Hybrid; USD 132,000 - 198,000; Full time

Job summary

F5 Networks, Inc. is seeking a senior security engineer to design and implement security controls for enterprise cloud and on‑prem environments. You will drive threat modeling, automate testing, and collaborate with Architecture, SRE and Operations to harden systems.

Requires 6+ years in security and networking, a CS‑related degree, and hands‑on cloud experience (Azure/AWS/GCP), firewall design, and vulnerability tooling. Hybrid work within commuting distance to an F5 office.

Qualifications

• 6+ years of security and networking experience.
• Experience with cloud security across Azure, AWS, GCP.
• Experience with vulnerability testing tools.
• Ability to design and implement security controls and automate processes.
• Strong communication and collaboration skills.
• BS/MS in CS or related field.

Responsibilities

• Build and implement security controls for enterprise cloud and on-prem environments.
• Identify risks to confidentiality, integrity, and availability and determine mitigations.
• Automate and improve security testing and reporting outputs.
• Perform security assessments on cloud‑hosted and on‑prem systems including threat modeling.
• Collaborate with Architecture, SRE and Operations to implement security standards.
• Assist in incident detection and response efforts.
• Implement zero‑trust patterns with cloud‑agnostic tools.

Skills

Cloud security

Threat modeling

Scripting

Security testing

Networking security

Firewall design

Collaboration

DevOps tools

Public cloud

Education

B.S./M.S. in CS or related field

Tools

Azure

AWS

GCP

Hashicorp Vault

Palo Alto

Job description

Primary Responsibilities

• Build and implement new security controls, processes and tools.
• Identify organizational risks to confidentiality, integrity, and availability, and determine appropriate mitigations.
• Leverage native Azure, GCP, and AWS cloud services to automate and improve existing security and control activities.
• Develop or implement open‑source/third‑party tools to assist in detection, prevention and analysis of security threats.
• Perform technical security assessments against product and enterprise cloud‑hosted, virtual, and on‑premise systems including static and dynamic analysis, and threat modeling.
• Review and test changes to services, applications, and networks for potential security impacts.
• Collaborate with Architecture, Site Reliability Engineering and Operations teams to develop and implement technical solutions and security standards.
• Stay abreast on security best practices and secure design principles.
• Review changes to and ongoing operations of enterprise environments and supporting systems for security and compliance impacts.
• Assist in incident detection and response efforts.
• Implement zero‑trust patterns with cloud agnostic tools to support enterprise business units.
• Implement, design, develop, administer, and manage enterprise security tooling.

Knowledge, Skills and Abilities

• Experience working with high‑availability enterprise production environments.
• Familiarity with scripting languages (Go, Python, Ruby, Rust, etc.) and building scripts for process improvements.
• Experience automating security testing and reporting outputs.
• Technical knowledge and hands‑on experience with security and networking security, basic networking protocols, cloud security, network security design, intrusion prevention/detection, and firewall architecture.
• Experience assessing and implementing technical security controls.
• Willingness to innovate and learn new technologies.
• Excellent interpersonal and relationship skills with a collaborative mindset.
• Knowledge or familiarity with technological stack (Big‑IP, Azure, AWS, GCP, CentOS, Hashicorp Vault, Palo Alto, Qualys).
• Experience with network and application vulnerability and penetration testing tools.
• Baseline competency in administration of Microsoft Azure Cloud, Amazon Web Services (AWS), Google Cloud Platform (GCP) or equivalent public cloud infrastructure.
• Exposure to DevOps tooling, CI/CD pipelines, container orchestration, and infrastructure as code approaches (Puppet, Chef, Ansible, Terraform, Jenkins, CircleCI, Artifactory, Git).
• Strong written and verbal communication skills.
• Strong self‑directed work habits, exhibiting initiative, drive, creativity, maturity, self‑assurance and professionalism.
• Agile, tactful, and proactive attitude that can manage prioritization and know when to elevate issues.

Qualifications

• B.S. or M.S. in Computer Science, Engineering, or related field, or equivalent experience.
• 6+ years of relevant security and networking experience.

Compensation

The annual base pay for this position is: $132,000.00 - $198,000.00. You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at https://www.f5.com/company/careers/benefits. F5 reserves the right to change or terminate any benefit plan without notice.

Employment Status and Location

Hybrid: Employees within 30 commutable miles of an F5 office are required to work from the office a minimum of 30 business days per quarter.

Remote: Primarily work from a designated home location but can come into an F5 office to work or travel to an off‑site location as needed.

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting [e-mail].