Senior Security Engineer

4 weeks ago


Chertsey, Surrey, United Kingdom F5, Inc. Full time
Job Title: Senior Security Engineer

F5, Inc. is seeking a highly skilled Senior Security Engineer to join our Security Incident Response Team (SIRT). As a key member of our team, you will be responsible for addressing security issues in F5 products and networks.

Job Summary:

The Senior Security Engineer will provide expert security technical leadership for F5 SIRT. This position requires complete security knowledge and expertise in security threats, incident handling methodologies, and offensive/defensive attack vectors.

Key Responsibilities:
  • Responsible for upholding F5's business code of ethics and promptly reporting violations of the code or other company policies.
  • Monitors security issues to identify and act upon them as they occur.
  • Participates in tier 2 and tier 3 security support.
  • Provides expert incident handling and drives both attack analysis and mitigation options.
  • Provides F5 customers with high-quality support experience.
  • Manages multiple issues and prioritizes based upon customer and business needs, without direction.
  • Effectively engages supporting escalation personnel, without direction.
  • Ensures complete and clear incident documentation.
  • Maintains incident documentation, participates in post-mortems, and writes incident reports.
  • Continuous research into emerging threats and mitigation options.
  • Independently develops and delivers security content and training based on research and testing within the security field and with F5 products to drive security mindset.
  • Performs general security awareness and specific security technology training.
  • Engages in on-going training within the security field and with F5 products.
  • Follows processes defined in F5's Quality Management System (QMS).
  • Works closely with others to develop incident response plans.
  • Identifies the gaps between the security incident response process and customers' needs, optimizes/improves the workflow/process.
  • Acts as the technical lead, identifies the knowledge/technical skill gaps in the team, develops a training plan for the team, mentors/trains other members of the team.
  • Identifies trends and/or common knowledge gaps and ensures they are documented via the KCS Solve Loop.
  • Ensures that security-related knowledge is documented within KCS and represents Security within the KCS Evolve Loop, for example RCA feedback into product design & documentation.
  • May lead projects and provide guidance/training to less experienced staff, mentoring.
  • Performs expert threat and vulnerability management, monitoring of CVE and vendor notifications.
  • Evaluates and executes cross-functional security initiatives across the enterprise.
  • Works with cross-functional Engineering teams to ensure all systems are properly remediated according to our policies and standards.
  • Leads steering committee(s) to analyze vulnerabilities and their impact to assess risk ratings.
  • Provides strategic security analytics metrics and reports.
  • Provides security-related metrics for all levels, including executive-level dashboards to demonstrate process effectiveness and remediation across the enterprise.
  • Effectively communicates and documents risks related to the vulnerability environment and appropriate levels of urgency to management and engineering staff.
  • Represents Information Security on organizational project teams and ensures adherence to existing security policies and standards.
  • Works closely with Incident Response and Risk Management teams and leverages corporate tools to provide supporting documentation for remediation prioritization and emergency security coverage.
Requirements:
  • Minimum of 15 years of experience in a technical security role such as support, monitoring, or consulting (e.g., pen testing) working with relevant technologies.
  • Information security subject matter expert.
  • Expert understanding of industry standards such as CVE, CPE, and CVSS.
  • Strong understanding of security frameworks and NIST standards.
  • Appropriate security-based qualification; CISSP, GCIH (or demonstrated skills and ability to obtain certification) - more than one certification preferred.
  • Public cloud certifications (or demonstrated skills and ability to obtain certification).
  • Expert experience with security incident handling processes, procedures, and methodologies.
  • Expert technical experience with identifying and mitigating a breadth of attacks such as DDoS, web application, DNS, and other network attacks.
  • Expert knowledge with common security vulnerabilities and the ability to judge their severity.
  • Expert experience with working security incidents at corporate production environments.
  • Experience working with network and packet analysis tools.
  • BA/BS degree or equivalent experience.
  • Expert knowledge with Web Application Firewalls, Firewalls, and IPS/IDS.
  • Expert experience with network vulnerability scanners.
  • Expert OS hardening and security best practices.
  • Knowledge of common Malware types and infection vectors.
Knowledge, Skills, and Abilities:
  • Hands-on technical experience with and very knowledgeable on LAN/WAN operations, and/or networking hardware required.
  • CVE and CERT experience.
  • Expert knowledge of security offensive/defensive techniques and methodologies.
  • Expert understanding of security attack/defense methodologies (e.g., DNS, network TCP/IP, SSL, and HTTP).
  • Intermediate understanding and working knowledge of TCP/IP, SSL, DNS, HTTP, and common protocols.
  • Coding experience - having, in addition to Python, knowledge in other scripting languages.
  • Understanding of the underlying mechanisms for security vulnerabilities at a code and assembly level, e.g., buffer overflows, input sanitization.
  • Knowledge of network and security monitoring tools.
  • Familiarity with load balancers, WAFs, and common network architectures.
  • Working knowledge of standard UNIX/Linux command line tools.
  • Hands-on technical experience with public clouds (e.g., AWS, Azure, or GCP), and container-based deployments and orchestration tools (e.g., Kubernetes, Docker, Terraform, and Ansible).
  • Knowledge of microservice architecture, modern application architecture, and API security.
  • Ability to generate new training and knowledge sharing content via various delivery methods.
  • Able to work with moderate supervision.
  • Proven track record in a team environment.
  • Analytical thinker with strong attention to detail.
  • Must be able to read, write, and speak English fluently, including technical concepts and terminology.
  • Must be able to relay technical information to customers with varying skill levels.
  • Ability to create attack Proof of Concepts.
  • Experience with incident tracking software, Seibel experience a plus.
Physical Demands and Work Environment:

Duties are performed in a normal office environment while sitting at a desk or computer table. Duties require the ability to utilize a computer, communicate over the telephone, and read printed material. Duties may require the ability to travel via automobile or airplane, approximately 20% of the time spent traveling. Some datacenter/lab work as well. Duties may require the ability to lift 50 lbs enabling them to rack our controllers in customer locations or our lab. This role may require work outside of core business hours, including early morning, late evening, overnight, weekends, and/or holidays as needed. There will be a requirement to participate in an on-call rotation.

Some travel may be required, a current passport is required.

This role is regional - Americas, EMEA, and APJ.



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