Senior Network Security Engineer

Role: Senior Network Security Engineer

Location: Oregon City, OR - 100% onsite

Position Type: Direct Hire, Full Time

Annual Compensation Range: $120-150K DOE

Position Summary

A Ledgent Technology local client is on the hunt for a Senior Network Security Engineer to help strengthen and modernize our enterprise security environment. This is a highly technical role for someone who enjoys working directly within systems and networks, proactively identifying risks, and implementing practical security improvements that support business operations.

This is not a governance, compliance, or policy-only position. The ideal candidate is a security practitioner with a strong networking foundation who understands how enterprise environments function and can effectively balance security, performance, and operational continuity.

The successful candidate will partner closely with infrastructure, architecture, and IT operations teams to improve security controls, enhance visibility, reduce risk, and implement long-term security initiatives.

Key Responsibilities

Security Engineering & Architecture

• Design, implement, and maintain enterprise security controls, standards, and hardening practices.
• Participate in infrastructure, cloud, and application architecture reviews to ensure security requirements are incorporated early in the design process.
• Evaluate and deploy security technologies that enhance protection without negatively impacting business operations.
• Review existing security configurations, firewall rules, and access controls to identify opportunities for improvement and risk reduction.
• Develop and implement security guardrails that support a "do no harm" approach to business operations.

Threat Detection & Vulnerability Management

• Manage and optimize centralized logging, monitoring, and security analytics platforms.
• Conduct proactive threat hunting and security investigations across systems and networks.
• Perform vulnerability assessments, prioritize findings, and coordinate remediation efforts with technical teams.
• Develop, tune, and improve detection rules, alerts, and security monitoring capabilities.
• Analyze security trends and recommend improvements to organizational security posture.

Incident Response & Security Operations

• Lead security incident investigations through detection, containment, eradication, recovery, and post-incident review.
• Develop and maintain incident response playbooks, operational procedures, and runbooks.
• Support endpoint security technologies including EDR, antivirus, and endpoint hardening initiatives.
• Collaborate with infrastructure teams to address and remediate security threats and vulnerabilities.

Network Security

• Monitor and assess newly discovered devices and network activity.
• Investigate anomalous communications and coordinate mitigation efforts.
• Design and support network segmentation strategies, including VLAN implementation and access controls.
• Review and optimize firewall policies to reduce risk while maintaining business functionality.
• Provide technical guidance on enterprise network security architecture.
• Support implementation and maintenance of network security standards and best practices.

Required Qualifications<

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, Los Angeles County Fair Chance Ordinance, and San Francisco Fair Chance Ordinance.