Senior Network Security Engineer - Zero Trust & Cloud

Donnelley Financial Solutions (DFIN); United States; On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive compensation

Flexible workplace

Comprehensive benefits

Growth opportunities

Job summary

DFIN is seeking a Senior Network Security Engineer to provide advanced engineering leadership for enterprise network security across cloud and on-prem environments. You will design secure architectures for LAN/WAN, own medium-to-large initiatives such as segmentation and firewall modernization, and drive modernization aligned to Zero Trust.

Mentor engineers, set standards, coordinate incidents, develop runbooks, and partner with vendors to deliver secure, scalable network platforms with

Qualifications

• Bachelor’s degree in Computer Science, IT, or related field (preferred) or equivalent experience.
• 7-10+ years of hands-on experience in network security engineering, including cloud networking and enterprise platforms.

Responsibilities

• Lead the design of secure LAN/WAN architectures and hybrid cloud/SaaS environments.
• Own medium-to-large initiatives (segmentation, SASE expansions, firewall modernization) from design through delivery.
• Lead incident response as Level 3 escalation and drive post-incident analysis and systemic fixes.

Skills

Network security

Cloud networking

Zero Trust

SASE

CI/CD

Education

Bachelor’s degree or equivalent

Tools

Azure

SIEM

NDR

PowerShell

Job description

DFIN is seeking a Senior Network Security Engineer to provide advanced engineering leadership for enterprise network security across cloud and on-prem environments. You will design secure architectures for LAN/WAN, own medium-to-large initiatives such as segmentation and firewall modernization, and drive modernization aligned to Zero Trust.

Mentor engineers, set standards, coordinate incidents, develop runbooks, and partner with vendors to deliver secure, scalable network platforms with