Sr. Manager - Network Security Engineering & Ops

Donnelley Financial Solutions

6d•Remote

About The Position

DFIN is seeking a highly experienced and strategic Senior Manager to lead its Network Security Engineering & Operations team. The role is responsible for the availability, reliability, and security of critical network infrastructure, including remote worker technologies, firewalls, load balancers, web application firewalls, routers, switches, and wireless access points. It supports network connectivity and security across all sites, datacenters, and cloud providers, and requires a proactive approach to 24/7 operational support and escalations. The Senior Manager leads and mentors network security engineers, guides network security projects as a Product Owner, and works with cross-functional teams, partners, and vendors to align initiatives with business objectives. The role oversees engineering and operations, service availability and performance, technology lifecycle management, metrics, incident response, compliance, risk mitigation, and vulnerability remediation. It also participates in on-call rotations as needed and promotes automation and redundancy to strengthen service resilience.

Requirements

Bachelor’s degree in a relevant discipline or equivalent experience.
At least 5 years of experience leading network and other engineering disciplines, including related architecture efforts.
At least 5 years of experience designing and implementing enterprise network security or similar engineering disciplines.
Demonstrated innovation and awareness of external threats sufficient to drive a preventative security posture.
Strong knowledge of network security products, including firewall, WAF, load balancer, DDoS, and microsegmentation technologies.
Strong knowledge of networking products, including routers, switches, and wireless technologies.
Experience interfacing with senior management and communicating complex cybersecurity concepts in business-relevant terms.
Strong knowledge of enterprise systems, cloud solutions, and IT/security technologies.
Extensive experience in strategic planning, budgeting, and resource allocation.
Excellent written and verbal communication skills, including presenting to leadership and explaining security and risk concepts to technical and non-technical audiences.
Strong business analysis and problem-solving skills, with reliable follow-through.
Willingness and ability to work hands-on and lead from the front.
Self-starter with a can-do attitude who drives engagement and accountability internally and cross-functionally.
Ability to act calmly and competently in high-pressure situations.

Nice To Haves

CISSP, CISM, CCNP, or other relevant certifications.

Responsibilities

Lead and mentor network security engineers, fostering a team culture aligned with CISO organization behavioral goals and DFIN values.
Lead network security projects, including strategy, requirements gathering, scope definition, and project timelines as a Product Owner.
Collaborate with cross-functional teams to align network security initiatives with business objectives and balance internally and externally driven work requests.
Maintain partner and vendor relationships, including budget management and negotiations.
Coach and mentor team members, conduct performance check-ins, support skill development, recognize strong performance, and address improvement areas with action plans.
Communicate and influence effectively with diverse audiences, including explaining complex technical issues in clear, actionable terms.
Oversee the design, implementation, and maintenance of firewalls, WAFs, load balancers, routers, switches, remote access, and wireless access points.
Ensure network and network security services remain highly available and performant through proactive monitoring and capacity planning.
Manage the lifecycle of network security systems and services, including upgrades, patching, and end-of-life transitions.
Develop and maintain metrics for service health, team responsiveness, and delivery.
Serve as the primary escalation point for critical network and network security incidents, including 24/7 support for critical outages.
Lead root cause analysis and resolution efforts for outages and incidents.
Maintain and improve incident response processes and documentation.
Ensure network security infrastructure complies with internal policies and client obligations.
Conduct regular audits and assessments to identify and mitigate risks.
Support vulnerability management and remediation efforts.
Maintain readiness for 24/7 support and escalation, including participation in on-call rotations as needed.
Implement automation and redundancy to reduce manual intervention and improve resilience.