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Principal Cyber Security Engineer

A10 Networks and Careers
San Jose, CA Full Time
POSTED ON 3/25/2026
AVAILABLE BEFORE 5/12/2026
Principal Cyber Security Engineer

A Principal Cyber Security Engineer is a seasoned, hands-on role responsible for monitoring an organization's networks, systems, applications, external industrial events, and trends for security threats. This role involves analyzing and developing tools in python for security data, identifying Vulnerabilities, and responding to security incidents. Cyber Security Analysts work closely with other security professionals to maintain the organization's security posture.

Principal Cyber Security Engineer has the following responsibilities:

  • Monitor networks, systems, and applications for security threats

  • Develop security tools programming in python to protect applications against security threats

  • Perform Threat Hunting using industry and A10 specific datasets to

  • identify threats to the company and our customers

  • Incident Response for threats against the company and our customers

  • Monitor industry trends in various areas of cybersecurity

  • Provide cybersecurity direction through insightful writeups and presentations

  • Conduct periodic penetration tests and vulnerability assessments

Principal Cyber Security Engineer requires the following skills:

  • Master’s degree in Computer Science or Information Technology, or a related field with 5 years in Cyber Security with 10 years overall experience

  • 1 years python programming experience

  • Knowledge of security principles and best practices

  • Understanding of Threat Hunting methods

  • Basic ELK stack expertise

  • Operational familiarity with an array of host, application, cloud and network cybersecurity technologies

  • Threat Intelligence and other Open source intelligence

  • Basic binary reverse engineering using tools like Ghidra or IDA

  • IP networking troubleshooting and design

  • Knowledge of programming languages such as Python and Go

  • Operational understanding of penetration testing tools

  • Proven track record of identifying and remediating cybersecurity threats

  • Analytical and problem-solving skills

  • Excellent communication and interpersonal skills

Principal Cyber Security Analyst may use the following tools and software:

  • Security information and event management (SIEM) systems
  • Intrusion detection/prevention systems (IDS/IPS)
  • Firewalls and other Network security appliances
  • Vulnerability scanners and penetration testing tools
  • Malware analysis tools
  • Forensic tools
  • Programming languages, such as Python and Go

Preferred Certifications:

CompTIA Security , CEH, or GIAC

A10 Networks is an equal opportunity employer and a VEVRAA federal subcontractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. A10 also complies with all applicable state and local laws governing nondiscrimination in employment.

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Compensation: up to $220K USD

Salary : $220,000

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