companyAlarm.com logo

Principal Network Security Engineer

Alarm.comTysons, Virginia
On-site Full-time

Clicking Apply Now takes you to AutoApply where you can tailor your resume and apply.


Unlock Your Potential

Generate Job-Optimized Resume

One Click And Our AI Optimizes Your Resume to Match The Job Description.

Is Your Resume Optimized For This Role?

Find Out If You're Highlighting The Right Skills And Fix What's Missing

Experience Level

Mid to Senior

Qualifications

Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. A minimum of 7 years of experience in enterprise networking and security. Strong expertise in Cisco networking technologies and security protocols. Demonstrated experience in managing hybrid cloud environments. Proficiency in security management practices and incident response. Excellent problem-solving skills and the ability to work under pressure. Strong interpersonal skills with a focus on teamwork and collaboration.

About the job

 

The Principal Network Security Engineer plays a vital role in overseeing the management, lifecycle operations, and security of our Cisco-based networking infrastructure. This key position requires a leader who can administer, configure, monitor, and optimize core network systems and platforms, while also implementing best practices in security management. This role uniquely blends technical operational management of critical Cisco platforms with extensive information security responsibilities across both hybrid cloud and on-premises environments.

Key Responsibilities:

  • Administer, monitor, and optimize Cisco infrastructure, including firewalls, identity management, and network analytics platforms.
  • Perform routine software and firmware upgrades, patching, and configuration updates on network and security appliances.
  • Ensure effective network segmentation and secure access by configuring and enforcing network access controls.
  • Manage and maintain secure remote access solutions for users and devices.
  • Deploy, configure, and tune next-generation network perimeter and detection tools to ensure consistent policy enforcement.
  • Oversee application delivery and web application security solutions, assisting with WAF configuration and incident response.
  • Monitor network telemetry and activity for anomalous behavior or security events.
  • Respond to and investigate network, security, or operational incidents in both on-premises and cloud environments.
  • Support DDoS and threat protection systems, maintaining readiness and reporting suspicious activities.
  • Collaborate with infrastructure and application teams to design and implement secure, compliant architectures across cloud and datacenter.
  • Participate in vulnerability management processes, remediating identified exposures across managed platforms.
  • Contribute to security operations, including event and log analysis, and enhancing detection capabilities.
  • Develop and maintain infrastructure documentation, runbooks, and operational standards.
  • Enable automation for repeatable network and security processes using scripting and modern tools.
  • Provide technical guidance and mentorship to junior staff on security best practices and platform operations.
  • Other duties as assigned.

About Alarm.com

Alarm.com is a leading technology company that empowers businesses and homeowners with innovative solutions for security, automation, and connectivity. Our advanced platform integrates cutting-edge technologies to provide seamless user experiences and robust security measures. Join our dynamic team and be at the forefront of transforming the way people interact with their environments.

Similar jobs

Tailoring 0 resumes

We'll move completed jobs to Ready to Apply automatically.