Cyber Security Engineer: Firewall & Network Defense

Quantum Technologies. LLC; Fremont (CA); On-site; USD 83,000 - 152,000; Part time

Job summary

Quantum Technologies. LLC in Fremont, CA is seeking a Cyber Security Engineer on a long-term contract to strengthen enterprise security operations. You will protect networks, manage firewall configurations, and implement secure infrastructure practices.

Responsibilities include administering Check Point and Cisco ASA firewalls, reviewing rules, enforcing access controls, and coordinating with IT teams to align security with business needs. Strong analytical and communication skills are essential.

Qualifications

• Proven experience in cybersecurity engineering or related security-focused role.
• Hands-on knowledge of Check Point firewall administration in enterprise environments.
• Practical experience with firewall technologies, including policy management, rule review, and troubleshooting.
• Strong working knowledge of Cisco ASA platforms and related network security functions.
• Experience supporting configuration management processes for security infrastructure.
• Solid understanding of core cybersecurity principles, risk mitigation, and secure network design.
• Ability to analyze technical issues, prioritize actions, and communicate effectively with cross-functional teams.

Responsibilities

• Administer and optimize cybersecurity controls across network and infrastructure environments to maintain strong system protection.
• Manage, monitor, and troubleshoot Check Point and Cisco ASA firewall platforms to ensure reliable and secure connectivity.
• Review firewall rules, implement policy updates, and enforce access controls in line with security best practices.
• Maintain accurate configuration standards and support change activities to improve consistency across security devices.
• Investigate security issues affecting network defenses and coordinate timely resolution to minimize operational risk.
• Partner with technical teams to align security measures with infrastructure needs and compliance expectations.
• Assess existing security configurations and recommend enhancements that strengthen the overall defensive posture.

Skills

Cybersecurity engineering

Firewall administration

Risk assessment

Cross-functional communication

Tools

Check Point

Cisco ASA

Job description

Quantum Technologies. LLC in Fremont, CA is seeking a Cyber Security Engineer on a long-term contract to strengthen enterprise security operations. You will protect networks, manage firewall configurations, and implement secure infrastructure practices.

Responsibilities include administering Check Point and Cisco ASA firewalls, reviewing rules, enforcing access controls, and coordinating with IT teams to align security with business needs. Strong analytical and communication skills are essential.