Security Engineer - Networking

Shamrock Trading Corporation • Overland Park, KS

5d • Onsite

About The Position

Shamrock Trading Corporation is seeking a Network Security Engineer to join its Cyber Security team and help protect the organization's network infrastructure by administering and supporting enterprise firewall technologies and network security controls. This role is suited to a security professional with at least three years of experience who enjoys hands-on technical work and wants to grow within cybersecurity. The position focuses on firewall operations, network segmentation, access control management, threat detection, and security incident support, in close partnership with Infrastructure, Networking, and Security teams.

The ideal candidate has a strong foundation in networking and cybersecurity, experience supporting enterprise firewall platforms, and an interest in protecting systems and data from evolving cyber threats. Regular onsite attendance is essential. The role involves direct collaboration with cross-functional teams, real-time problem-solving, timely responses to customer and operational needs, team meetings, operational processes, and occasional onsite training.

Shamrock describes its culture as focused on employee growth, recognition, and empowerment. The company provides ongoing training and professional development, fully paid healthcare, dental and vision premiums for employees and eligible dependents, gym benefits, company 401(k) contributions, employee stock ownership after one year, competitive paid time off, and paid time off for community volunteering.

Requirements

• At least 3 years of experience in network security, cybersecurity, network engineering, or a related technical discipline.
• Hands-on experience administering or supporting enterprise firewall platforms.
• Experience implementing and troubleshooting firewall policies and security rule changes.
• Familiarity with security monitoring, log analysis, and threat detection concepts.
• Understanding of cybersecurity principles, including vulnerability management, incident response, and defense-in-depth strategies.
• Strong analytical, troubleshooting, and problem-solving skills.
• Effective written and verbal communication skills.

Nice To Haves

• Experience supporting Palo Alto Networks firewalls.
• Exposure to security monitoring and SIEM platforms such as Microsoft Sentinel, Splunk, Rapid7, or CrowdStrike.
• Knowledge of Zero Trust architecture and network segmentation best practices.
• Experience working within a Security Operations Center (SOC) or Cyber Security team.
• Industry certifications such as CompTIA Security+, CompTIA Network+, Palo Alto PCNSA, Cisco CCNA, or Fortinet FCP/NSE.

Responsibilities

• Configure, manage, and maintain enterprise firewall environments for secure and reliable network operations.
• Implement, modify, and troubleshoot firewall policies and access control rules based on business and security requirements.
• Monitor network traffic and security alerts to identify potential threats, vulnerabilities, and suspicious activity.
• Support VPN technologies, secure remote access solutions, and network segmentation initiatives.
• Investigate and resolve firewall-related connectivity and security issues.
• Participate in the deployment, maintenance, patching, and lifecycle management of firewall and network security devices.
• Conduct periodic firewall rule reviews and assist with access recertification efforts.
• Partner with Security Operations, Infrastructure, and Network teams to strengthen security controls and improve threat visibility.
• Assist with network-based security investigations and incident response activities.
• Support vulnerability remediation efforts related to network infrastructure and security devices.
• Maintain accurate documentation of firewall configurations, network diagrams, and security procedures.
• Help ensure compliance with organizational security standards, policies, and industry best practices.
• Stay informed about emerging cyber threats, attack techniques, and network security technologies.

Benefits

• Ongoing training and professional development opportunities.
• Fully paid healthcare, dental, and vision premiums for employees and eligible dependents.
• Gym benefits.
• Company 401(k) contributions.
• Employee stock ownership after one year.
• Competitive paid time off.
• Fully paid time off opportunities to volunteer in the community.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed