Sr Security Engineer

F5; Dublin; On-site; EUR 120,000 - 180,000; Full time

Job summary

F5 is seeking a Senior Security Engineer to help protect our enterprise products and cloud environments. You will implement security controls, perform threat modeling, and collaborate across Architecture, SRE, and Operations to raise our security posture.

We expect strong scripting and cloud expertise (Azure, AWS, GCP) and experience with security tooling, vulnerability testing, and zero-trust patterns. You will influence security architecture in a fast-paced, global team.

Qualifications

• B.S. or M.S. in CS/Engineering or related field.
• 5 years of progressive responsibility in a security organization.
• 2-6 years of relevant security engineering or network security experience.

Responsibilities

• Identify risks to confidentiality, integrity, and availability and determine mitigations.
• Leverage Azure, AWS, and GCP to automate security and controls.
• Develop or implement tools to detect, prevent, and analyze threats.
• Perform technical security assessments against F5aaS product and cloud/on‑prem systems.
• Review changes to services and networks for security impacts.
• Manage penetration and segmentation testing of applications and networks.
• Review enterprise operations for security and compliance impacts.
• Assist in detection and response as a product line SME.
• Propose new controls to Security Architecture and GRC.
• Build and implement new security controls and tooling.
• Implement zero-trust and IAM with cloud-agnostic tooling.
• Collaborate with Architecture and SRE/Operations teams to implement solutions and standards.
• Configure standard security testing/scanning tools.
• Advise stakeholders on security best practices.
• Design, develop, administer, and manage enterprise security tooling.

Skills

Go

Rust

Python

Ruby

Azure

AWS

GCP

Security architecture

Networking security

DevOps tooling

CI/CD

Agile

Communication

Education

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

5 years in security organization

2-6 years in security engineering or network security

Tools

Big-IP

Azure

AWS

GCP

Kubernetes

Docker

HashiCorp Vault

Palo Alto

Cisco

Terraform

Jenkins

CircleCI

Artifactory

Job description

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

Sr. Security Engineer

Security Engineer

Join a team using leading edge security technology and processes to protect the F5 enterpriseand productenvironments. TheSr.Security Engineer position will develop and implement strategic processesand buildtechnical solutions to enable our information security program and continuously improve our security posture amidst the industry’s evolving technology landscape.

Primary Responsibilities

• Identifyorganizational risks to confidentiality, integrity, and availability, and determineappropriate mitigations.

• Leverage native Azure, GCP, and AWS cloud services to automate and improve existing security and control activities.

• Develop or implementopen-source/third-party tools toassistin detection,preventionand analysis of security threats

• Perform technical security assessments againstF5aaS product andenterprise cloud hosted, virtual, andon-premisesystems including static and dynamic analysis, and threat modeling.

• Review and test changes to services, applications, and networks for potential security impacts.

• Managepenetration and segmentation testing ofF5applications andnetworks.

• Review changes to and ongoing operations ofenterpiseenvironments and supporting systems for security and compliance impacts.

• Assistin detection and response efforts as a product line subject matter expert.

• Propose new controls to Security Architecture and GRC.

• Build and implement new security controls,processesand tools.

• Implementzero-trustand IAM securitypatterns withcloud agnostictooling

• Collaborate with Architecture, Site Reliability Engineering and Operations teams to develop and implement technical solutionsand security standards.

• Configure industry standardsecurity testing/scanning tools (network scanning, code scanning, posture management).

• Advise enterprise stakeholders on security best practices and secure design principles.

• Implement, design, develop, administer, and manage enterprise security tooling.

Knowledge,Skillsand Abilities

• Experience working with high-availability enterprise production environments

• Ability to script in multiples languages (Go, Rust, Python, Ruby, etc.) and experience building scripts for process improvements and automation

• Baseline competency in administration of Microsoft Azure Cloud, Amazon Web Services (AWS), Google Cloud Platform (GCP)or equivalent public cloud infrastructure.

• Technical knowledge and extensive hands-on experience with security and networking architecture, networking protocols, network security design, wireless security, intrusion prevention/detection, andfirewallarchitecture.

• Experience automating security testing and reporting outputs

• Knowledge or familiarity with technologicalstack(Big-IP, Azure, AWS, GCP, CentOS,Linux, Kubernetes, DockerHashicorpVault, Palo Alto, Cisco, Qualys).

• Experience assessing and implementing technical security controls

• Exposure to DevOps tooling, CI/CD pipelines,container orchestration,and infrastructure as code approach (e.g.Puppet,Chef,Ansible,Terraform, Jenkins,CircleCI, Artifactory, Git)

• Strong written and verbal communication skills.

• Experience with network and application vulnerability and penetration testing tools

• Willingness to innovate and learnnew technologies

• Excellent interpersonal and relationship skills with a collaborative mindset

• Strong written and verbal communication skills.

• Strong self-directed work habits,exhibitinginitiative, drive, creativity, maturity,self-assuranceand professionalism.

• Agile, tactful, andproactiveattitudethat can manage prioritization and know when to escalation.

Qualifications

• B.S. or M.S. in Computer Science, Engineering, or related field, or equivalent experience

• 5years ofprogressive responsibilityin a security organization

• 2-6yearsof relevantsecurity engineering or network security experience

The base pay range per annum for this position is: F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the time of the job posting and is subject to change. You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at the following link: https://www.f5.com/company/careers/benefits. F5 reserves the right to change or terminate any benefit plan without notice.

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com)****.

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].